[4K] GSX Block Prep 8 - Machining Mains & Cylinder Bores
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- เผยแพร่เมื่อ 26 พ.ย. 2024
- First I want to say that all of the schedule delays in this video are 100% my fault. To film all of this during finals and back to school, it was me who couldn't take a full week in a row off of work and knock this out. Never order the wrong part before Christmas and New Years and expect shipping to ever work right. This was a big job and Ballos Precision Machine in Richmond, VA did a great job not only with my parts, but with their patience in putting up with my busy work schedule so they could fit me in to film every step of this. That has to be really annoying and they never showed it.
In Block Prep 7 it was discovered that the piston to cylinder wall clearance was inadequate, and that there were uneven oil clearances and taper on the mains. If you're new to engine building, the main journals are the most central part of your engine. They support the bearing and hold up the crankshaft which every single function of the engine is connected to. As seen in the video, the cylinder bores are easy enough to correct. If the crank journal diameters aren't consistent, if you're using a bearing girdle, if you've had to machine the block from a previous failure or there are casting defects, then this process can be fairly tedious.
In this video I got permission to actually work on my parts and experience the entire process, and some of the difficulties a machinist might face doing a job like this. If you detect any frustration, it has nothing to do with the people, the parts, or the machinery... it's only my expectations falling apart. Not every job will walk in and out of a service provider's facilities easily, and mine was no exception. This job would have taken a machinist more than a week to complete, and that's once it's moved to the front burner. Any frustration you might detect was created by ME aligning my day job schedule around all the work that my block ended up needing to be right. I didn't think it would be that bad? Anyone's job could have clustered like this. That was a priceless lesson for me to learn.
I chose Ballos Precision Machine because I've successfully built 4 engines and completed countless other fixes over the past 20 years. They've always proven themselves capable, competent, and straight-forward with setting my expectations. You will see that demonstrated here very well. They've done all of the machining on the parts you've seen in all of my videos, and I've won trophies with their work. Though their heritage is auto racing, they already service everything-and-everyone who has precision machining needs. Automotive, aircraft, marine, manufacturing, and the medical community to name a few. They're always busy, and it's a gift that I got to do this at all. Also grateful to my employer for being so flexible, generous and patient regarding the use of my leave balance. I used it all for science!
Hopefully this video serves as an example of what to expect if you ever have to go through this process. Hopefully it shows what you might not get to see happen if you hire someone to do this for you. Know that machinists face tedious jobs like mine all the time and it could happen before, during, or after your equipment ends up in the machine. This is why patience and acceptance is so important. Not just for the machinists... but for the customers who are asking them to perform specific and precision miracles. A machinist's job can be repetitive and sometimes thankless, but I know my viewers aren't the people who contribute to that. I know my subscribers all love and appreciate the people who help them achieve their dreams. Make sure you let those people know you're grateful when they lend a hand. I could not have completed this job or brought you this video without the great people at Ballos Machine.
If you want to support my production, please visit www.patreon.com/Jafromobile. For as little as $1 per upload you get early access to new videos, bonus content and a private place where we can talk. All proceeds from Patreon go right back into my production to make my projects and videos better. Everyone on Patreon is making a direct impact on what I do here.
![[4k] GSX Dry Assembly Begins](http://i.ytimg.com/vi/WfybxbKhu0Y/mqdefault.jpg)
This is grassroots motorsport precision engine building. Thanks for staying dedicated to the process, and taking us along for the ride.
I've been watching Jafro for years and still get as excited as ever when a new video comes out. May Jafro never stop uploading no matter the time spans
Perfect place for the centerfold pics in the background, next to the machine that repetitively goes in and out of holes.
Jafro posted another video, it’s like Christmas but better.
Right!?!? It's like I'm getting my GSX built even though I don't get to drive it, race it, or even smell the leather interior. But for some reason I still feel all warm and fuzzy inside.
I know I am kinda randomly asking but do anyone know a good website to watch new tv shows online ?
@Phoenix Fox Try FlixZone. Just google for it :)
@Kase Keaton Definitely, been watching on FlixZone for months myself =)
@Kase Keaton thanks, signed up and it seems to work =) I really appreciate it!!
I have never built an engine, been to a track or gone over 90 mph in any car in my life, but i have watched you for years and your attention to detail/honesty is what bring me back every time, keep up the great work
You are the reason i'm a mechanic today, I don't even own a 4g63 car anymore but i love your videos, thank you for what you do.
The detail you go to, Insane, and completely necessary. This is what seperates the boys with ebay turbos on hondas, and the men who have perfectly optimised setups. The more detail done now, the less worry there will be later.
Tbf the Elantra kicks ass for like 10% of the invested resources. A pretty good argument can be made for getting bang for your buck. Nothing wrong with going this route and chasing the last percentiles of performance if you research and plan the project first either though IMO. Just gotta know your limitations and what you're getting into 1st either route
All I did to the Elantra was the exact same stuff I did here. Same level of scrutiny UnitD77's talking about. Sometimes the scrutiny itself is 1000x better than the expensive mods. But what if we combine both? ... Muahahahahahahaha. Yeah, that's what the GSX is. I think he's talking more about people than their projects and I agree with both of you.
And now jafro knows what's it's like to be a machinist. Tedious but satisfying work.
Truth be told, I got a 98% average in my metal shop class in high school for the year including my final exam. I out-produced the entire class combined in projects. They didn't let me build my go-kart, but they let another kid do it. They let me run the lathe, mill, and use the arc welder without supervision, though. I cost them a fortune in materials, but I made so much stuff. I built industrial heat exchangers for a few years after I got out of college, but now I use everything I learned in my garage. I can't wait until I own a lathe, a mill, a shear and a brake. Might have to move to have a place to put them? Really, this is insanely fun to me. I had the best time doing this. So happy with with the outcome and the example in the video!
@@Jafromobile So cool hearing your background! I'm sure your old teachers would be happy to know you've kept up with your skills.
This is much different then what most machinists deal with on a day to day. Kinda like doctors I suppose. Lots of different specialties in the machine world. As a 25 year machinist it was cool to see this process 👍🏻
It's always trippy to see another Richmond native talking about local things in our sleepy little town.
Our very well behaved and lawful (for now) sleepy little town.
That machinist had a really good manner and way of explaining things for an audience though a camera. Good call on bribing with food.
Wow - I'd never seen those stamps on the block for the size of the mains from the factory. Cool.
you are one person that even if you quit making videos all together i would not unsubscribe
Literally jumped off the couch and screamed when I saw there was a new episode. My life is complete now, at least for the time being. Thank you Jafro!
I remember Stuart from the cylinder head videos, guy is a rock star. would love to see ballos machining start a youtube channel.
I'd bet they wouldn't have the time
The frustration is palpable.
Don't worry about pleasing us or trying to get videos out consistently; we'll be here waiting regardless.
Stoked to get a GSX update and hope all is well Jafro. Much love.
Stuart and I both recognized the value of doing this for everyone else. I know the questions I had back when I first got started. I read everything I could find, but nobody even really writes about this kind of stuff. I needed examples. None of the people anywhere around me could answer my questions. There was no internet then. Today, you search the internet. I still can't find something like this... What a gift! Thank You Ballos!
Jafro buddy, it's great to see progress. We know you're busy, no need for apologies and we are happy that this is such a priority in your life as it is: sharing your passion and projects with us. I think I speak for us all here that after following all your projects and getting to know you, we support you in all you do. Can't wait for the GSX assembly!
I found this channel by Youtubing the Kiggly Racing Main Bearing girdle. I'm a 'professional' mechanic (by no means expert after watching you work). This has helped show me how much I don't know and how much attention to detail I lacked in the past while assembling my 4G63s. You are seriously overbuilding the engine for the application with margin for error - that's a good thing.
Glad to see you back at it again. Can’t wait to hear this thing loping and fully assembled in the GSX. Hope all is well with you. You’re the entire reason, I am building my car. Can’t wait for the next installment!
I can't either, man... I wish I could give you spoilers. There is so much absurdity ahead of us, I can't wait to hear it.
Jafromobile obsurdity to you, is fantastic content for us. I can’t wait for the next installment. I live my go fast dreams through your videos, since right now my car is still under the knife. Your attention to details others overlook, is just amazing. Anyhow keep up the great work, and stay safe brother.
Thanks for the update video jafro I'm glad that you didn't have to start from scratch and man thanks to the machine shop for letting us watch y'all rock
Jafro I love you your persistence , absolute inspiration to back yard modifiers ,keep up your perfection it's awesome to watch
That machine certainly has a long shaft. Watching it repeatedly going in and out of holes reminds me of the mice we had at my old house.
I knew nothing about dsm and 4g63's and I'm actually building a ford 4.6 for a mustang. But thanks to you jafromobile I have rethought my entire engine build. Learned so much from watching your videos they are always entertaining and informative. Can't wait to see the gsx on the track again. Keep making great vids!
I'm chomping at the bit to get back out there with it... Best of luck to your build!
I recently built my first engine getting it started on exactly on the last day of the old year watching your videos have me the knowledge and motivation on doing it myself and investing in the tools it’s not a 4g63 but a 4g93-1.8L mivec engine runs really great thanks for the continued video posts
I own that same shirt you were wearing Jafro!😄 "In the garage working on my racecar, don't have time for your shit"
I can't wait to see the next video already!
Awesome shop that let you film and also explaining the process on camera. Top job!
I’m glad you step up for the machine shop that is helping you on your journey! It isn’t easy having to go through all the changes with them, but they are patient as are you! Your honesty and straightforwardness is why your following and your Patreon list grows each time I see one of your videos! Your go to extreme and still manage a sense of humor! That’s difficult when you work this hard at anything! Great job Jafro!
It wasn't difficult for me to go through the process with them. It was difficult for me to take time off of work and slow them down with my video production. It was difficult because I order the wrong part during peak holiday and shipping season. It was only difficult because of me. ;)
Jafromobile, I guess you were stressing a lot. I know you care a great deal and I see how it effects you. They are a very accommodating shop. I am glad that they allowed this. I am sorry you had to use so many personal days from work. I just hope you get some time to destress yourself because if anyone deserves it, you do. You can believe that the ones who are familiar with what you have done and have gone through surely know of the sacrifice involved. I hope you see that your followers see this and very much appreciate what you do. It may not matter much, but I do! I am not the only one who sees this. All your followers see this! Don’t feel rushed on our accounts. Your videos are well worth the wait Jafro!😊👍🏻🙌🏻
Persistence pays off! Thanks for another great vid!
Thanks for showing everything I thought I knew about engine assembly but really didn't, love all the detail in your videos great stuff mate
More progress yay ! Those guys at the machine shop are very patient every time you go there .
The inside of the block looks great! I hope it works out like you want it to. Hope the rest of the bulid goes well ! Have a good week!
Thanks for always showing the whole process. Learning a ton from this series. Love the 360 cam.
Somehow I found out about your video just now. The moment I saw it I clicked it. 3.30 am after finishing it. Even after all these years it still makes me a happy man. I hope you feel great man. You truly enlighten my week. Great as always, and can't wait to see the next. Have a good one!
Too bad you dont post regularly. Truly one of my fav yt channels! Love the struggle for perfection
ever since the fork hole joke I have come to expect more hole jokes, and i wasn't let down
Really enjoyed the video, been a subscriber since 2013, and it’s through you I’ve learned so much about engines. Having the patience to go through measuring, cutting, and not stopping until it’s perfect is a skill that I’m still trying to learn, however I am getting better. Your videos are like therapy for me, and I still occasionally watch old Hyundai build videos for inspiration/ therapy/ background music for my projects.
Thanks man! "Patience is a virtue" that can be learned given a high degree of self-awareness. One of the things I was trying to illustrate by example is that we can be our own worst enemies, and that every build has SOMETHING that's going to attack and torment our expectations.
Jafromobile That is very true. Words you spoke on one of your Hyundai videos really spoke to me, you said in your voiceover something like “I don’t know how many final assemblies I’m allowed but I promise I’ll stop when I get it right”. I’ve been following that philosophy ever since, and, whilst my build times have blown out a bit, the quality of my builds have gone through the roof. Sometimes it’s the simplest of things that can stuff you up, however, as you show, patience and persistence will eventually give results. It’ll also give that little extra satisfaction that the effort you spent was well worth it when it all works correctly. Can’t wait to see the next instalment of this build.
Thank you for another fantastic video. So cool to not only see how this is done, but get your commentary and annotations. Thanks for all you do!
It's a shame we don't have engine workshops like this in the UK!
I bet if you dig, you'll find one. You guys totally beat the USA to the industrial revolution, remember? We had to steal it from an immigrant. Someone has to build the things that race at Santa Pod... ;)
@@Jafromobile You might have a point and thanks for the reply!
Awesome FPV you need to get your information correct before you comment wrongly about UK not having workshops/engine shops like this. We have many engine shop's and much better one's in lot's of places. Google helps!? Personally I served my time in a Engine shop and I observed a few things that were at best cowboy attempt with lack of inspection and incompetence aswell as machinery being used in ways I was shown to do it another way to accomplish a better finish. Example is the bore surface didn't look to have the cross hatch pattern from honing them. Because I no what I see what should be done I notice more than most observing this work and most machinists also see that it was not done well. Any questions don't hesitate to ask.
This is very common in the sports bike world also.... They even color coded the oversized parts... Each cyclinder/ rod/ crank journal has its own bearing size... This is how precise you have to be when your bike red lines at 13k rpm.
...and that's a *great* thing! There's a lot more at stake not only for the engine, but the person whose dirty bits vital organs and arteries are mashed right up on it!
what a long process, glad you got it back home.
Thank you. Your doing so good!! Some of the best videos about engines. In depth, quantity, and very good.
I usually buy 3 sets of bearings per engine build. Granted I build Subaru engines, but the principle is still the same. Great vid series.
17:57 STAAAHP This had to be so frustrating. I like the straight forward machining of the cylinder bores. Technical and precise, just measure and cut. Line boring seems like voodoo or dark magic comparatively. >.
Velocity Labs 🧪 🥼 I know right. Now we all know the truth. I really liked finding out about the factory machinist marks on the block. That was very interesting to find out.
It's not so mystical of a process, really. It's just time consuming and repetitive. To the machine shop this is just another day that ends with a "y". To a non-machinist youtuber with a day job burning vacation days it's different. I think that everyone NEEDS to SEE that some jobs win the all-day-sucker lottery, and that the only way to overcome it is persistence. But I don't need to explain any of this to you. I would not have survived your frustrating experience. My forehead vein would have burst, full-on aneurism, and I'd have bled out internally and instantly. This was more like a 3 month slow-burn in your esophagus that won't go away because you haven't uploaded a video.
I’m not ashamed to admit I got giddy when I got a notification there was another video. Was secretly hoping it was over the harness build you hinted at in the last video.
The first minute and a half of that video is hilarious. Looking forward to finishing that one because at the present it's slightly overwhelming.
Man, not gonna lie, your frustrations with this spanning over a month gave me PTSD from my own DSM endeavours, especially the one I'm in right now. I guess that's just how it is with these cars; it's hard and not straight-forward but that's how we learn best. Really glad it finally paid off and I'm sure by now you're already assembling and getting new footage. I'm eager to see the what comes next!
It just goes to show that sometimes, as much as we hate it, things are completely out of our hands. Either when it comes to parts being parts, needing other people's specialized tools & work, or just plain ol' bad luck. As a Capricorn, this triggers me because I WANT to do everything myself, but I just gotta face the fact that it's not how the world works.
Anyway, there's my early morning ramble. You've given me the motivation for today's work so I'mma head out and poke the ol' Talon. Thanks for the video!
Love the ANTI-That'll do method..
It's important to have expectations, or else you'll never truly know disappointment.
Shoutout to the truck for always starting and being there even tho you're thinking about the DSM, not it.
So you do have days when nothing goes right. Thanks for sharing.
I do. Yes. But it's how we deal with those days that define us. ;)
You can tell that Ballos is a legit machine shop by the standard issue bikini calendar hung up on the wall next to Isle of Man flag
Seeing an Isle of Man TT banner up in a pokey little engineering gaff way on the other side of the pond, You've got some proper enthusiasts looking after you! Brilliant video as per usual Jafro, was great waking up on my 31st birthday to this video haha!
Best channel on TH-cam imo . Just unreal . Love this stuff.
I think harbor freight needs to become an official sponsor of this channel considering the amount of tools from them Jafro uses. Thermometer gun is an example
You have come back with a vengeance!! This video is fantastic.
Thanks for your dedication and hard work
It's nice to shoot somewhere else. My garage scenery isn't anywhere close to as cool as Ballos Machine's!
Great info def taking into consideration for my block prep. Vg30de going vg30dett with high compression/forged internals. Head worth of work and thats only motor cant even begin on the body upgrades. The things we do for our car dreams >=]
Awesome guys at that shop!
Thanks for the video.
Wow, to say the least looking at this video is a perfect example of never giving up! If TH-cam wasn’t so strick about copyrights “eye of the tiger would been perfect for voice over music”
Great content as usual! Keep up the fantastic HARD work!
Get in,another video that goes mostly over my head. 2 months is a loooong wait
If engine rebuilds would pop out perfect for every new or hobby fellow type...we'd all be engine rebuilders. I think i managed to get things ... kosher on my 9th try on 3 engines, and at the time it wasn't even full on crazy mode like this fellow here is going.
You’re BACK!!!! Awesomeness!!!!!
Just got the notification, *click* page loads, 25 thumbs up already.... we love you Jafro.
Jafro, I can only hope to reproduce the results you strive for, with my own projects. I look forward to your uploads more than any other TH-camr.
Yes a new video. 👌😎 I never want your videos to end. Good job jafro.
Hahahah, I brought my fabricator doughnuts and beer yesterday, and here I find the original himself reminding me why. Always bribe your automotive specialists, people!
I had a similar issue with my mazda BP, thankfully I'm not a perfectionist. I never bothered to have it line honed but had some inconsistencies between the mains...decided to just send it lol.
She still sendin'? Does she go full send?
@@Jafromobile Still going strong. Currently apart for transmission repair. Hoping to go low 11s once it's back together. If I decide to 10s my next build will definitely be more precise, current engine is definitely on the loose end with STD bearings, was way to tight with undersized...and doing halves made me nervous...I had no idea you could make the bores smaller, the thought never crossed my mind, so my next build that will definitely be something to consider.
Look at the Hyundai. She's a little loose but still loyal as frig. As long as you've got the oil for it, you're good! Some people spend a lot of money trying to make a hole smaller. Keep givin' 'er.
Always worth it watching your videos. Keep them coming
Increasing TH-cam viewer retention since 2009!
I just love your videos soo much. Thank you for taking the time to make it.👍
To the guy honing your cylinders:
LET'S GO CAPS
I feel your pain, J. Glad it finally came together (other than that pesky #2, but at least you have a good workaround for that one.) Cheers, mate. :-)
Perfection is an illusion sometimes far-too-pursued o.0
Funny. Way back to the same machine shop's parking spot.
hey Jafro at least you've got a spare set of rod bearings
...and a spare set of 4.5/5 of the standard mains.
@@Jafromobile and most of a set of undersize mains should you need to mix and match another set of main bearings...
Hope the next video is soon I love your videos
6:55 yelled loudly foucus you fak! ... there we go - works every time
I think I need to get a 4g63 now given how much knowledge jafro has put out
Hey Jafro love your videos Hope you’re staying safe and healthy can’t wait to see the next one
Good to see uour back
Great work on this video Jafro. Keep it up
I love how he explains crank bearing oval shape as "necessary " but when we're just mitigating 4G63 crank walk
😅
Jafro, looking trim my man. Looking good! Keep up the good work.
I hit 174lbs and was like... woahwoahwoahwoah... could fit in jeans I wore in college. Back up to 185 and happy. Ask my lunch buddy, I ate like a horse the whole time. When I broke 3 ribs I gained 30 because of what it did to my mobility. They took years to heal. I wasn't happy about it at all, and it gets harder to lose as you get older. But yeah! Thanks for noticing! That took work.
@@Jafromobile No problem buddy! Just glad to learn it wasn't from the stress of engine building! :p
Wow If I knew I could get this quality of work I’d have my block built tomorrow
I hate waiting for your videos!!!! It’s like watching a good show but never knowing when the next will come out
Just awesome video, thanks for sharing with us
Only problem with line hone is that you are taking material off the block side of main journal . If you have a gear drive the gears can get tight or timing chain loose . Preferred method for heavy diesel that I did years ago is to line bore the mains and only take material off cap and finish hone with emery cloth on a wheel of appropriate bore size . Job takes longer though.
Jafro - You mentioned you've needed these clearance targets for your "power goals" a few times in a few different videos, but I don't recall you stating what that goal was. What exactly are your goals for this block? Not just a peak power figure but what are you hoping to see with the torque curve overall and boost levels/turbo combinations? It's a street strip build so I imagine driveability being a high priority and think I recall you mentioning sticking with 272 cams.
I'm spending thousands of dollars on the parts and supporting modifications that will unquestionably expose my goals. Some of these parts aren't here yet, but I'll say this much... above 500hp. You'll have to let me reserve my specifics for the reveal. I wish I could just work on this 24/7 and speed up the process instead of keeping you or anyone else waiting! Basically, as much horsepower as you can make with tiny little Kelford 272 cams. ;)
Please say your you going after that red devil car with the billet 4g63. I think hes pushing like 60lbs of boost at 1400hp
@@Jafromobile bwahahahaha I love it. No need to spill any secrets on my account. I am glad to hear you are not putting all this effort for some easy bolt on power. I am excited to hear and see more of your plans as they unfurl.
Best of luck with the build and hopefully you'll hit less snafus going forward ;-)
@@muttenmagroo 86+ PSI actually. That's funny, but no! No way! Too much respect for Devin Schultz! He's forgotten more about a DSM than I'll ever learn. The world's land speed record for a 2.0L engine is only 11mph faster than the Red Demon. And they did it on the salt flats. Not from a stop within 1320 feet. If I can't get a Hyundai to beat a 2.0 60 foot, then I couldn't catch him if I had a million dollars to do it with. Devin should have done a DSM channel, but you're stuck with me! :P
@@Jafromobile yeah that car is freakin insane. First saw it when Cleetus was racing him a few months ago.
@jafromobile after you have verified all bearing clearances at home with the proper tools, grab some plastigauge because I assure you the line bore is no longer straight. This will show up in the plastigauge via varying clearances from front to rear. You have what you were targeting on an individual bore/bearing basis but the line has moved because it was line honed in with a freestanding honing bar vs a supported boring bar.
The honing bar is adequate because the positions of the bore centers will force the portions of each journal that are out of alignment to be where the bulk of the honing occurs. Once those high spots are down, it's evenly honed. You have a straight line, sure... because the honing bar is straight, but the line may move by a thousandth or so. What's slightly regrettable about this process is that shaving the caps and then honing the holes round again moves the pistons up closer to the deck. 4g63's are zero-deck, so I may have a few that protrude above the deck slightly. We'll see... It's something that I can work with, but we'll see.
Hey man, I just wanted to thank you for the quick little tech tips that you include in your videos. I used coffee filters in a recent engine build I did and they worked a real treat! simple and cheap and lint free! You da man!
@Jafromobile, I love these videos. Keep it up.
Q: Is that honing or machining? Because i don't know whether that's machining the bores or honing it, as i'm curious to know whether the bores required to be exactly the right specification and then you just hone it out...?
Q: Does honing take material off?
Typically when someone gets a block machined, it means they need all the oil clearances checked or corrected and a variety of processes might be employed to prepare it for assembly. Boring is a cutting process, honing is a sanding or grinding process, but they're both machining. Boring and honing both remove material. Either one makes the hole bigger. Honing removes material slower than boring, and it leaves a finish that's necessary for your parts to be put to work. No matter which hole we're talking about you would bore it a couple thousandths smaller than the size you need, then hone it to the exact size required. The cross-hatched texture will help oil stick to the cylinder walls and help your rings seat. It also helps the bearings bed in place and stay put. Whether you just need honing or both, either way it's correct to say you had it machined. Does that make sense?
@@Jafromobile You explained everything in great detail. THANK YOU! :D I really needed that information about how "boring puts the bore closest to the thousandths smaller than the size you need" and honing helps get it to the right dimension and cross hatch. Appreciate the response. Looking forward to the next one!
This video reminds me I have to drop my cylinder head off at the machine shop. Probably sooner than later if I want a shot at putting in on the car come spring time. Glad to see the wheels are moving for you!
I could have had it back by Thanksgiving if I had just dropped it off and let them do their thing. But yeah, you're right.
Great TH-cam Chanel
I Learn a lot!
Greetings from iquique, taracapa, chile.
this may be complete conjecture, but i wonder if the honing issues may have been from running the hone stop to stop on the slide and jumping. i would think ideally you would want to run it to a smooth stop before the mechanical sudden stop
Not gonna lie...seen the new video was up got hella happy.... Keep it up Jafro!
Except for a few channels, my formerly super-entertaining subscription feed is dying. I know the feels.
I see that smirk on your face! Happy man
,,, it helps, if the mandrel and stones have been seated on an identical block or two, ahead of all that scrutiny. Of course maybe they were . Then swapping the block end for end during the process . Also, did you really change the main studs ?
Yes. We swapped the mandrel bar 180°, but we did it between passes. They say you don't have to do that it with this one, but they still do it. I changed main studs because after several dozen cycles, they were done. They were fine when I started, but they gave up the ghost during this process. Each time we hone is 4 cycles on them because of measuring it in-between. The studs didn't go south until the 4th day, but by the end of the day I could see the finish on the threads was gone. I ordered new studs and came back two weeks later with the wrong bearings to install them. Rinse repeat. Both of them my fails.
@@Jafromobile ,,, I wouldn't give up on those ARP studs, till they ripped the threads out of several blocks .
I cringe every time I see him stick that bore gage in the cylinder with the cutting fluid still dripping out of the nozzle. I know that it would
take a lot more time but I would have to have the part completely clean and dry before I put the gage into it.
Swap 1 shell of your tightest bearing with 1 shell from loosest bearing can sometimes fix your bearing mis tolerences
As the engine was line bored I wonder the value of alternating the orientation of the block between passes of the bore?
Great and informative video as always! Have learned a lot from your channel through the years. My first tuner had the 4G63 SOHC engine (over 10 years ago), so it's always a fun little trip down memorylane when you upload :D
Finally, some more Jafro!
Please keep going Sir the world need to learn
Believe me Jafro I understand why you don’t/can’t but damn I wish you could upload a shit ton more than you do! Because I do love the content you put out! Keep em comin!
I do this for a living I'm sure the machinist loved that job LOL
Did your machine shop ever try mixing bearing sets to get the clearance you were looking for? For an example, putting half of a STD with half of a 1 under to get the clearance you needed? Or was it a matter of principle to try and use the same size halves for each journal?