Dude your shop reminds me of this old dude that had a shop in Montgomery field Back in the 70's Good shit man..... San Diego was a different place then
I was reading your comments and seen that you said the ultima 120 would fit in the fxr,do you know if it will fit in a 92 heritage Softail?my bike is completely stock with 13,000 miles but I would like to have more power out of it thanks.
I'm just about to pull the trigger on a 124 Hot Setup from S&S for my Softail. I think it's a bit of a pissoff that they don't provide you with a "Trued" flywheel right off the hop.
Hey tatro I got a 88ci twin cam that the inner case cam bearing failed on sucking the roller bearings in the oil pump cracking it , the pinion shaft is scuffed up but no serious marks any way to save the whole assembly ?
no, not worth the time or money on these piles of junk. just go to harley and buy one of their long blocks like the dealers do. no one rebuilds these junk ass new motors. tatro
Tatro Machine haha tatro your a funny guy I wish I lived near there I’d work in the shop for free haha I absolutely love Harley’s and I expected your reply to be it’s junk haha it’s not my primary bike it’s a 1999 Electra glide I paided 1200 dollars for so it’s my own project just don’t have the money for a Harley long block ..... the funny thing is the inner cam bearing failed and didn’t hurt the case haha so I’m taking it one step at a time but I learn a lot from you and I plan on rebuilding this motor myself and love the whole it needs more torque
That was neet how you straighten the crank/flywheel out Tatro. What is the cause of these going out of round? Is it the torque? If so, how do you eliminate the issue so it wont come back? I have one of the new M8 engines and I would like to put a big bore kit in it, but am gunshie still. Tman performance has a nice 120 kit, but in doing so, should I make any improvements to the lower end while it's apart? Thanks for your time in making these videos.
Thanks for replying Tatro! I really am learning a bunch from your videos. The more I watch them, the more I like the EVO. I have been following one of your series with the 92 FXR rebuild. Outstanding work with that Temkin Bearing system install. heck...all of it! Thanks!
not sure. would probably start at a 50% deal and go from there. i would read up on what harley was trying to do and what numbers they were using and why. i would at least measure what harley used and equalize the two flywheels. this all deppends on what the applcation is for too. stock type riding or lets go have some fun. tatro
whether you do it yourself or pay to have it done at least you know how it should be done. knowledge is king. you do realize that shops watch these videos too. everyone has to learn how to do things at some point. tatro
I am at the point as a Harley owner. That I am ready to just go frame up. Every track tested part within reason. And modify everything that gets bolted on. My starter engine did well. If anyone see's a flaw in the parts mix. Let my know. It was what was out in 04 I could get with my Iraq money. Edelbrock Performer RPM heads and intakeHarley 95CI jugs +0.05 JE flat top 10.5-1 pistols with valve reliefs +0.05S&S 625G gear drive camsJims roller rockersJims roller liftersJims TI pushrods Mikuni HSR 45Nology wires NGK plugsScreaming Eagle ignition 6200 limit and coil. Sitting in a 00 FXD 88TC I can say 600's and 650's are not much of an issue until we creep near 100 MPH. I don't know top speed WO other than the needle floats all over the place. Wish I could drop the dime for a dyno tune and see it. Built a fun street bike engine that I can still run down the highway without too many Gremlins. 115 years and Harley is still trying to figure it out. Its an airplane engine. Treat it like one.
Aircraft engines make HD mills look like a lawnmower engine by comparison. Much love for Harley's but they are in no way comparable except HD has vague resemblance to parts of ancient radial engines which were built to a far higher standard. A&P here. Enjoy your machine but don't spout nonsense.
thanks for the reply buddy. been following all the shit you do for sdc. nice builds. i guess my question is...is itnworth it to have the flywheel welded on an s&s t143
doesnt he say in the beginning that its an s&s flywheel ? s&s and oyher performance nhra drag machinist/mechanics swear that s&s flywheels dont need t ok be welded because of the solid plugs. do you think whoever welded it didnt know what they were doing ?
+Stephen Malone as proved in the video, once you weld the crank you lose the press fit that holds the crank together. the only thing holding the crank together is the weld bead. better make sure that is a good weld or it is going to move. the other problem is that when you weld the crank it moves from the heating and cooling so you loose your straight crank. it is now out of true and will need straightening. this straightening can break the weld which will loose all you strength that you were trying to get. tatro
Wouldnt it be better if Harley had a solid forged crank, and side by side connecting rods? Much stronger, no shiming? keep it 45 degrees for the sound, you probably wouldnt get that low rpm idle because you dont have the weight of the massive flywheels. I enjoy your videos!!!! peace out
+MJM peace someone at harley would have to have a brain to figure out what a forged 1-piece crank was. we all know that is not going to happen. no one said you had to have light flywheels when you go 1-piece. tatro
Thank you, I have a 93 FXR sport with the evolution engine that I love! I think it's got the weaker bearing on the cam? Do those flywheels stay true? I believe I just have the screaming eagle exhaust and jettting. At a stoplight it can be rough with the fumes. I'll check the plugs, I might need to jet it down, but I know running rich will keep it cooler. I have never had a problem with a plug fouling. I purchased it 3.5 years ago and love the frame!!!! Is the fumes normal if my plugs look good, by the way I changed the plugs when I got it, and they looked fine, and changed all the fluids. Love your FXR build, the different oil pumps etc.... Thank you!!!!!!!
+MJM peace all 1989-95 evo bt case are junk, very weak castings that like to break. if your case were not warranted out you will have problems if you run the motor hard. the later 97-99 cases are very good castings. all harley bt flywheels from late 1989 and later are junk. they are very weak and will not stay straight if you get after it. harley camshaft bearing are caged and should be replaced with uncaged full roller type bearings. the cams themselves are not that good on the materials they are made from and the grinds suck too. any aftermarket cam is better then stock on both counts. your carb is way out of adjustment, running rich is very bad for the motor. bolt on a hsr42 mikuin and your problems will go away and the power will go way up. like all harley motors they need lots of work to make them into good motors that are fun to ride and last. all of these problems were taken care of in the fxr 88 ci videos. that motor was a pain in the butt to build but it turned out to be a very good motor. the customer was very happy with the motor. he had to go hop-up his twincam dyna some more because the evo was kicking its butt. tatro
Thank you, I don't push the bike hard, it's amazing that they went from good to weaker! If my cases were under warranty the serial number shouldn't match the frame. Thank you again.
+MJM peace not true, harley replaced them with the later castings and put your vin number on them. i had one in the shop this week. you can tell because the later castings have the boss on the left front of the case for the later fuel injection crank sensor. these cases were so weak even slow stock riders had broken cases. half the bikes that came in with leaking or blown head or base gaskets had broken cases. the hole corner of the cases would just break off the case decks. the cases in the video had a long crack right down the side of the rear lifter block that no one knew was there until i showed it to them. tatro
And the bozo smacked the flywheels apart the last time without laying them on the bench---good job clown how much damage did you do to your flywheel mount or the shafts-------
marcia irmer if you have a better way of doing it, go for it. Harley sells you a junk crank and says it is good. they do not fix anything, I do.Twincam cranks are junk. you can not beat on the flywheels hardly at all without killing the shafts. older Harley cranks are made to fix so they make them out of good steel that you can beat the hell out of and they don't care. any Harley crank made after 1990 is a big pile of crap. cheap throw away junk.when you beat your crank apart on the side of your work bench what do you think you are doing to the tapers? better just to go to harley and buy a new one, you will feel better. don't worry about the vibration, they are made out of true on purpose.tatro
This video demonstrates the Fatally Flawed stock Twin Cam engine flywheel assemblies, found on all Twin Cam engines produced from 1999 to the present.They are merely pressed together, at the factory, with a 400 ton press, and unlike all previous, Single Cam Harley, engines that came before it, it has no crank pin, bolt and nut, torqued to hold both halves of the flywheel in true.But, unless this mechanic, plugged and welded, both halves together, after dynamically truing it on the truing stand, all his work is for naught, because the flywheel assembly will merely come out of true, again, sooner, rather, than later, when re-installed into the crankcases. It doesn't take many miles, at all for the sprocket shaft and pinion shafts to start to wobble, past the max allowable run out of 0.001". At 0.003", damage to the bushings and bearings, in the oil pump and cam shafts, and pinion shaft bearings, will begin and eventual CATASTROPHIC ENGINE FAILURE will occur.The cycle of truing this flywheel, will begin anew. So, this mechanic, will always have plenty of work to do.This is only one of the many inherent, design flaws of all Twin Cam engines. They also use two silent chain, drives to run the oil pump and the two camshafts, and they are thumb-sized, PLASTIC tensioners, which rub against a METAL chain, and are designed by Harley to be periodically inspected and to be periodically replaced for wear.Failure to replace them at 3/32" of wear, will result in the breakage of the PLASTIC tensioners and immediate, CATASTROPHIC ENGINE FAILURE will occur.And it is a costly procedure to replace these tensioners, and require specialized tools to remove and replace them. The stock oil pump is inadequate and only produces 3-8 psi of oil pressure at idle, and so these engines, run extremely hot and heat is an engines worst enemy. At 2,500 rpm, the oil pump only produces around 40 psi, not enough pressure to keep the engine cool.Another problem are the stock junk INA Cam shaft bearings, which wear out prematurely, and should be replaced with Timken Tapered Roller bearings, when servicing the cam chain tensioners. CAVEAT EMPTOR LET THE BUYER BEWARE.Buy a XL1200 Sportster, instead of a big Twin Cam bike, they are reliable and use the much better EVOLUTION engine design. That is now, the only real, reliable, Harley to own, in my opinion, great bike.
+tomcata1467 your about 50% right on all of that. as for that sportster thing, they have the same crappy pressed flywheels as the twincam. Harley started with crappy cranks with the evo sportster and continued with the late 1989 evo big twin cranks then made things worse with all the pressed cranks in 1999 for all models. until Harley goes to a 1-piece crank they will always have bad bottom ends. they will have to fix the oiling problems before that one will work too. tatro
Good assessment and how true. Harley doesn't sell performance, only selling an image, a brand, pure marketing, is all they have, cause they sure don't have worthy bike in the lot. People fall for the image, They are buying "the sizzle" not the "steak", no "steak there. And about 15% of the parts, are made in other countries, anyway. It's not 100% American made, either. Harley is another multi-national company, and has plants in India to produce the 500cc and 750cc bikes. The Project Mount Rushmore, liquid cooled, Limited Edition models have coolant leaks already and Harley, can't or won't fix the problem. Liquid cooled Harleys, anathema to the purists.
Someone needs to take a class on "Metallurgy" Press, Smack!!, and dropped connecting rods several times. No way i would ever let you work on my bike. I'm sure it just me though...I take Great Care on all my customers bikes. When a back tire locks up at 80...people die.
+Dan Boughton i know all about metallurgy. 30% nitro and 2 stages of nitrous makes molten aluminum. it goes very fast too. i didn't have any problems when my rear wheel locked up at 135mph. yea, when that crappy s&s supreme rod broke. lets see? plastic floor tile and lead are now going to hurt steel! dream on. harley says you can't rebuild their cranks and i just did it to less the 20% of their best specification with no fancy tools. what can you do? i spin my stroker motors over 7000rpm for 2 miles at full song and my shorter ones over 8000rpm and they live. if you get anywhere close to that you will be better then most any shop around. you should check out my single videos and really see how backyard i can be. tatro
Some people just play the hospital game more than the reality game. You should stick to brain surgery. The kind where you can only hurt yourself. Tatro is a machinist of a nature most cannot come close to. You should be happy he does not charge us to see how he does what he does. Its not a loss Dan. The future generation will produce 1/1000th of Tatro's kind. So the loss is on us. If Tatro just scribbled his notes on each Harley engine. Notes Dan not anything more. If myself a ten other men tried to cram that info into your head. Your cranium would pop. Glad you understand that soft materials are super harmful to hard materials.
Very interesting. Again the cost of these motorcycles this is unacceptable. But what is one to do? Lets compare motorcycle cranks.?sound good? See who builds the biggest piece of crap.
and up to .030 before they will replace it. what can i say, they are a bunch of morons that can't build a motor worth a crap. as you can see, it can be done better without a bunch of fancy tools if you want to do a little work. tatro
too bad s&s stopped making the good 5pc cranks and now makes those stupid harley like 3pc crap. they got in bed with harley and it has been all down hill since. tatro
Tatro....I found a video on you tube ... S&S 3 piece flywheel part 1 ,2 ,3 showing s&s flywheels are stronger than a stock Harley flywheel maybe you need to check it out? Maybe they are not fucking after all?
Dude your shop reminds me of this old dude that had a shop in Montgomery field
Back in the 70's
Good shit man.....
San Diego was a different place then
thank you for taking the time to upload these videos,I have learned a lot from watching them.you are a damn good mechanic.
Tatro,
Thank you for making these videos and sharing your knowledge.
Thanks for the advice..it's a pleasure watching you work
You are obviously the best there is your skills and knowledge are very impressive thank you 🙏 for sharing all you know about these bikes 🏍
love all your videos. a true master
thank you for your time and your knowledge
Great video with great info, thanks
Wow! it is great to see how it is done :-) Thanks
Such a great video. Thanks my dude.
Badass. New sub, great info!
Perfection..... Thanks for the Video....
I was reading your comments and seen that you said the ultima 120 would fit in the fxr,do you know if it will fit in a 92 heritage Softail?my bike is completely stock with 13,000 miles but I would like to have more power out of it thanks.
I'm just about to pull the trigger on a 124 Hot Setup from S&S for my Softail. I think it's a bit of a pissoff that they don't provide you with a "Trued" flywheel right off the hop.
Agreed 100%
A true hack job!
Do you mind telling me how bending the crank pin will solve a scissored flywheel?
Good video! I can do that in my brother's machine shop. Save some bucks.
Old School cool 😎
Excellent
Hey tatro I got a 88ci twin cam that the inner case cam bearing failed on sucking the roller bearings in the oil pump cracking it , the pinion shaft is scuffed up but no serious marks any way to save the whole assembly ?
no, not worth the time or money on these piles of junk. just go to harley and buy one of their long blocks like the dealers do. no one rebuilds these junk ass new motors.
tatro
Tatro Machine haha tatro your a funny guy I wish I lived near there I’d work in the shop for free haha I absolutely love Harley’s and I expected your reply to be it’s junk haha it’s not my primary bike it’s a 1999 Electra glide I paided 1200 dollars for so it’s my own project just don’t have the money for a Harley long block ..... the funny thing is the inner cam bearing failed and didn’t hurt the case haha so I’m taking it one step at a time but I learn a lot from you and I plan on rebuilding this motor myself and love the whole it needs more torque
In the manuel the run out can be so much on a 03 ultra and then the end play so much . where do you take each reading?
just like in the video. as close to perfect as you can get. loose is good, tight is bad.
tatro
when you do them flywheels like that do they stay true for a long period of time ?
is that a joke. hell no, they are twincams. buy s&s or ultima cranks if you want good parts.
tatro
Can you get a vibration from a crank that’s not tru ? Only happens at idle and it’s real bad at like 1500 rpm then it’s fine the rest of ride
yes.
That was neet how you straighten the crank/flywheel out Tatro. What is the cause of these going out of round? Is it the torque? If so, how do you eliminate the issue so it wont come back? I have one of the new M8 engines and I would like to put a big bore kit in it, but am gunshie still. Tman performance has a nice 120 kit, but in doing so, should I make any improvements to the lower end while it's apart? Thanks for your time in making these videos.
buy an s&s crank and hope for the best. if you drive like me you are going to have problems. buy an evo and get a good motor.
tatro
Thanks for replying Tatro! I really am learning a bunch from your videos. The more I watch them, the more I like the EVO. I have been following one of your series with the 92 FXR rebuild. Outstanding work with that Temkin Bearing system install. heck...all of it! Thanks!
Straighten and weld it
How do you balance the flywheel in a bike with counter balancers?
not sure. would probably start at a 50% deal and go from there. i would read up on what harley was trying to do and what numbers they were using and why. i would at least measure what harley used and equalize the two flywheels. this all deppends on what the applcation is for too. stock type riding or lets go have some fun.
tatro
So how do you replace rod bearings? Hardley a DIY project..
whether you do it yourself or pay to have it done at least you know how it should be done. knowledge is king. you do realize that shops watch these videos too. everyone has to learn how to do things at some point.
tatro
I am at the point as a Harley owner. That I am ready to just go frame up. Every track tested part within reason. And modify everything that gets bolted on.
My starter engine did well. If anyone see's a flaw in the parts mix. Let my know. It was what was out in 04 I could get with my Iraq money.
Edelbrock Performer RPM heads and intakeHarley 95CI jugs +0.05
JE flat top 10.5-1 pistols with valve reliefs +0.05S&S 625G gear drive camsJims roller rockersJims roller liftersJims TI pushrods
Mikuni HSR 45Nology wires
NGK plugsScreaming Eagle ignition 6200 limit and coil.
Sitting in a 00 FXD 88TC
I can say 600's and 650's are not much of an issue until we creep near 100 MPH.
I don't know top speed WO other than the needle floats all over the place. Wish I could drop the dime for a dyno tune and see it.
Built a fun street bike engine that I can still run down the highway without too many Gremlins.
115 years and Harley is still trying to figure it out.
Its an airplane engine. Treat it like one.
Aircraft engines make HD mills look like a lawnmower engine by comparison. Much love for Harley's but they are in no way comparable except HD has vague resemblance to parts of ancient radial engines which were built to a far higher standard. A&P here. Enjoy your machine but don't spout nonsense.
What kind of stand are you using. .
my flywheel turning stand is a cci copy of a rowe stand that was an updated copy of a harley turing stand from the 30's.
tatro
thanks for the reply buddy. been following all the shit you do for sdc. nice builds. i guess my question is...is itnworth it to have the flywheel welded on an s&s t143
+Stephen Malone
no, just plug it.
tatro
How's the bottom end on a 73 XLCH ?
doesnt he say in the beginning that its an s&s flywheel ? s&s and oyher performance nhra drag machinist/mechanics swear that s&s flywheels dont need t ok be welded because of the solid plugs. do you think whoever welded it didnt know what they were doing ?
+Stephen Malone
as proved in the video, once you weld the crank you lose the press fit that holds the crank together. the only thing holding the crank together is the weld bead. better make sure that is a good weld or it is going to move. the other problem is that when you weld the crank it moves from the heating and cooling so you loose your straight crank. it is now out of true and will need straightening. this straightening can break the weld which will loose all you strength that you were trying to get.
tatro
out of true from welding I presume? I'm told their cranks come with .001 or less of runout.
Wouldnt it be better if Harley had a solid forged crank, and side by side connecting rods? Much stronger, no shiming? keep it 45 degrees for the sound, you probably wouldnt get that low rpm idle because you dont have the weight of the massive flywheels. I enjoy your videos!!!! peace out
+MJM peace
someone at harley would have to have a brain to figure out what a forged 1-piece crank was. we all know that is not going to happen. no one said you had to have light flywheels when you go 1-piece.
tatro
Thank you, I have a 93 FXR sport with the evolution engine that I love! I think it's got the weaker bearing on the cam? Do those flywheels stay true? I believe I just have the screaming eagle exhaust and jettting. At a stoplight it can be rough with the fumes. I'll check the plugs, I might need to jet it down, but I know running rich will keep it cooler. I have never had a problem with a plug fouling. I purchased it 3.5 years ago and love the frame!!!! Is the fumes normal if my plugs look good, by the way I changed the plugs when I got it, and they looked fine, and changed all the fluids. Love your FXR build, the different oil pumps etc.... Thank you!!!!!!!
+MJM peace
all 1989-95 evo bt case are junk, very weak castings that like to break. if your case were not warranted out you will have problems if you run the motor hard. the later 97-99 cases are very good castings. all harley bt flywheels from late 1989 and later are junk. they are very weak and will not stay straight if you get after it. harley camshaft bearing are caged and should be replaced with uncaged full roller type bearings. the cams themselves are not that good on the materials they are made from and the grinds suck too. any aftermarket cam is better then stock on both counts. your carb is way out of adjustment, running rich is very bad for the motor. bolt on a hsr42 mikuin and your problems will go away and the power will go way up. like all harley motors they need lots of work to make them into good motors that are fun to ride and last. all of these problems were taken care of in the fxr 88 ci videos. that motor was a pain in the butt to build but it turned out to be a very good motor. the customer was very happy with the motor. he had to go hop-up his twincam dyna some more because the evo was kicking its butt.
tatro
Thank you, I don't push the bike hard, it's amazing that they went from good to weaker! If my cases were under warranty the serial number shouldn't match the frame. Thank you again.
+MJM peace
not true, harley replaced them with the later castings and put your vin number on them. i had one in the shop this week. you can tell because the later castings have the boss on the left front of the case for the later fuel injection crank sensor. these cases were so weak even slow stock riders had broken cases. half the bikes that came in with leaking or blown head or base gaskets had broken cases. the hole corner of the cases would just break off the case decks. the cases in the video had a long crack right down the side of the rear lifter block that no one knew was there until i showed it to them.
tatro
Shouldn’t it be trued and then welded? This crank is already welded
no, welding is not what i would do and don't.
tatro
I'd be better off sending you my crank than trying to do this myself.
And the bozo smacked the flywheels apart the last time without laying them on the bench---good job clown how much damage did you do to your flywheel mount or the shafts-------
marcia irmer if you have a better way of doing it, go for it. Harley sells you a junk crank and says it is good. they do not fix anything, I do.Twincam cranks are junk. you can not beat on the flywheels hardly at all without killing the shafts. older Harley cranks are made to fix so they make them out of good steel that you can beat the hell out of and they don't care. any Harley crank made after 1990 is a big pile of crap. cheap throw away junk.when you beat your crank apart on the side of your work bench what do you think you are doing to the tapers? better just to go to harley and buy a new one, you will feel better. don't worry about the vibration, they are made out of true on purpose.tatro
This video demonstrates the Fatally Flawed stock Twin Cam engine flywheel assemblies, found on all Twin Cam engines produced from 1999 to the present.They are merely pressed together, at the factory, with a 400 ton press, and unlike all previous, Single Cam Harley, engines that came before it, it has no crank pin, bolt and nut, torqued to hold both halves of the flywheel in true.But, unless this mechanic, plugged and welded, both halves together, after dynamically truing it on the truing stand, all his work is for naught, because the flywheel assembly will merely come out of true, again, sooner, rather, than later, when re-installed into the crankcases. It doesn't take many miles, at all for the sprocket shaft and pinion shafts to start to wobble, past the max allowable run out of 0.001". At 0.003", damage to the bushings and bearings, in the oil pump and cam shafts, and pinion shaft bearings, will begin and eventual CATASTROPHIC ENGINE FAILURE will occur.The cycle of truing this flywheel, will begin anew. So, this mechanic, will always have plenty of work to do.This is only one of the many inherent, design flaws of all Twin Cam engines. They also use two silent chain, drives to run the oil pump and the two camshafts, and they are thumb-sized, PLASTIC tensioners, which rub against a METAL chain, and are designed by Harley to be periodically inspected and to be periodically replaced for wear.Failure to replace them at 3/32" of wear, will result in the breakage of the PLASTIC tensioners and immediate, CATASTROPHIC ENGINE FAILURE will occur.And it is a costly procedure to replace these tensioners, and require specialized tools to remove and replace them. The stock oil pump is inadequate and only produces 3-8 psi of oil pressure at idle, and so these engines, run extremely hot and heat is an engines worst enemy. At 2,500 rpm, the oil pump only produces around 40 psi, not enough pressure to keep the engine cool.Another problem are the stock junk INA Cam shaft bearings, which wear out prematurely, and should be replaced with Timken Tapered Roller bearings, when servicing the cam chain tensioners. CAVEAT EMPTOR LET THE BUYER BEWARE.Buy a XL1200 Sportster, instead of a big Twin Cam bike, they are reliable and use the much better EVOLUTION engine design. That is now, the only real, reliable, Harley to own, in my opinion, great bike.
+tomcata1467
your about 50% right on all of that. as for that sportster thing, they have the same crappy pressed flywheels as the twincam. Harley started with crappy cranks with the evo sportster and continued with the late 1989 evo big twin cranks then made things worse with all the pressed cranks in 1999 for all models. until Harley goes to a 1-piece crank they will always have bad bottom ends. they will have to fix the oiling problems before that one will work too.
tatro
Good assessment and how true. Harley doesn't sell performance, only selling an image, a brand, pure marketing, is all they have, cause they sure don't have worthy bike in the lot. People fall for the image, They are buying "the sizzle" not the "steak", no "steak
there. And about 15% of the parts, are made in other countries, anyway. It's not 100% American made, either. Harley is another multi-national company, and has plants in India to produce the 500cc and 750cc bikes.
The Project Mount Rushmore, liquid cooled, Limited Edition models have coolant leaks already and Harley, can't or won't fix the problem. Liquid cooled Harleys, anathema to the purists.
Someone needs to take a class on "Metallurgy" Press, Smack!!, and dropped connecting rods several times. No way i would ever let you work on my bike. I'm sure it just me though...I take Great Care on all my customers bikes. When a back tire locks up at 80...people die.
+Dan Boughton
i know all about metallurgy. 30% nitro and 2 stages of nitrous makes molten aluminum. it goes very fast too. i didn't have any problems when my rear wheel locked up at 135mph. yea, when that crappy s&s supreme rod broke.
lets see? plastic floor tile and lead are now going to hurt steel! dream on.
harley says you can't rebuild their cranks and i just did it to less the 20% of their best specification with no fancy tools. what can you do? i spin my stroker motors over 7000rpm for 2 miles at full song and my shorter ones over 8000rpm and they live. if you get anywhere close to that you will be better then most any shop around.
you should check out my single videos and really see how backyard i can be.
tatro
nice. love that last sentence.
Some people just play the hospital game more than the reality game. You should stick to brain surgery. The kind where you can only hurt yourself.
Tatro is a machinist of a nature most cannot come close to. You should be happy he does not charge us to see how he does what he does. Its not a loss Dan. The future generation will produce 1/1000th of Tatro's kind. So the loss is on us.
If Tatro just scribbled his notes on each Harley engine. Notes Dan not anything more. If myself a ten other men tried to cram that info into your head. Your cranium would pop.
Glad you understand that soft materials are super harmful to hard materials.
Don't die, pull in the clutch. 80 is speeding any way. Be on alert.
Very interesting. Again the cost of these motorcycles this is unacceptable. But what is one to do? Lets compare motorcycle cranks.?sound good? See who builds the biggest piece of crap.
Darhorse builds the best Harley cranks from everything I have read.
what the heck is this...Harley said up to .012 off is just fine lol....
and up to .030 before they will replace it. what can i say, they are a bunch of morons that can't build a motor worth a crap.
as you can see, it can be done better without a bunch of fancy tools if you want to do a little work.
tatro
believe me I got a 3500$ dollar lesson on the fly wheel flaw on my 04 dyna last month they welded the crank pin..hopefully it wont happen again
and this guy knows his shit..
it will, welding does not help much if any.
next time get an ultima crank.they are very strong and they will custom balance them for you too.
tatro
Is there any way at all to do one these cranks right Tatro.
Buy a new S&S crank they will never brake like this junk from good oh Harley.
too bad s&s stopped making the good 5pc cranks and now makes those stupid harley like 3pc crap. they got in bed with harley and it has been all down hill since.
tatro
Tatro ......I didn't know that, I'll be checking on the info thanks.
Tatro....I found a video on you tube ... S&S 3 piece flywheel part 1 ,2 ,3 showing s&s flywheels are stronger than a stock Harley flywheel maybe you need to check it out?
Maybe they are not fucking after all?
Dumbest design for a crankshaft. If i could id put my vtx engine in my road king.
go for it. you should have enough room to do it.
tatro