How to Rebuild a Porsche 911 Transmission Part 2 - Porsche 930 Project - EP10
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- เผยแพร่เมื่อ 10 ก.พ. 2025
- We walk you through the steps of rebuilding an aircooled 911 Porsche 930 gearbox.
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Seeing all of this work always makes me appreciate the mechanical wonders that cars are. So much time and effort can go into these builds and restorations. I can't imagine working on all of this stuff, let alone being the one who designs it.
Respect to the channel and especially the mechanic on showcase. Whenever I need a reference I'll definitely look to this channel.
Ive said it before, hands down the best carchannel on youtube. A shame you dont get more viewers
^^ Thats what keep saying
+Kristoffer Lilja Thanks so much! We hope our grow continues. :)
The channels views shouldn't matter to you
And the reason it isn't as big is because this channel is actually about cars and not people just fucking around
Jamie Roberts Not to me it doesnt. But it benefits the channel and the people making it. With less subs you would get less motivated to put up content
Loving the Porsche video series!! He's not a watch maker but hey, he did fine!
Another great video. Just a tip for the future, A thick leather belt works pretty good between gears to lock them in place while torquing the gears down. Just fold it up to desired thickness and put it between the gears just like you guys used the aluminum. It'll eat up the belt but not the gears.
+Peter Smith The gears are heat treated and are MUCH harder than aluminum or brass. There is absolutely no way the gears themselves would be damaged.
The freezing and heating of the parts is not only recommended procedure; it makes the frozen, inner part to contract, and the heated, outer part to expand, so the tolerances widen A LOT, making mating them possible. Once the temperatures equalize again, the parts return to their regular sizes and are now press-fit to one another (and since they then only heat or cool together, they also stay like that).
I just found this video series today and I immediately fall in love with it! Thank you so much for sharing this awesome stuff!
Excellent! Glad you like it!
I know this video is a few years old. I do have one suggestion that will help anyone working with tight tolerance. You saw in the video when they went to the freezer to grab part of the gear and then to the boiling water. And time was getting away from them. What I discovered many years ago and I still used to this day is can of air that you would use to blow dust out of a computer. Can you turn the can upside down and within seconds the shrinking is mediate. I always keep one part with a propane torch and then I take my air and cool down the part. The best part is that you don't have to hurry. You can always refreeze the part immediately. Instead of having to wait for it to cool down in a freezer.
If you do a lot of work like this or even work on cylinder heads it's cheaper to buy it by the case. All you have to do is Google it and you can find your best price. I go back and forth from eBay to Amazon whoever is cheaper that.
Great video I'm thinking about buying my first Porsche and I like to see how difficult something that I buy is to work on.
A mechanic at an uncle’s construction company was having a impossible time getting new sleeves into a Cat block. So my uncle sent him out to fill an oil drum with ice and water and put the sleeves in it. Told the mechanic “come for me in 2 hours after lunch.” In 2 hours time, Moses went out to the garage and told the mechanic “put them in now.” The sleeves slipped in easier than a greased pig........
Wow.. I enjoyed your two part video..very inventive, practical, fun...as my 915 just self destroyed yesterday....sad..after 455k miles of service,,Best regards...Thank you
drinking game.... watch this porsche series and take a drink everytime Pete says 'look at that'..
+blu73 Or 'right' Or one of the other million terms that I used over and over. :O
+Speed Academy id never noticed the amount of times that you say "right" until after I read this comment...
Awesome series. Absolutely loving it.
Thanks!
I will probably never own a Porsche, but I love watching a master craftsman work!
These guys are masters at what they do indeed!
Very exciting build, thanks for posting !! :)
Good commentary/explanations along the video.
keep up the good work !
James
So much good, useful info in these videos.
At least I'll be able to watch them back when one day, I buy my dream Porsche...
+Ryan Cameron Thank you! If you ever need to rebuild a transmission this should help.
As usual, super informative!!! Keep it up guys!!
Thanks so much!
Never have seen that heating/freezing method before. Love seeing this stuff.
Great work, and thanks for videoing the master at work! On a side note, does anyone know what the tune in the background is?
Fascinating! Thanks for sharing this video!
So much satisfaction hearing that torque wrench beep.
Loving that Mk3 Supra, makes me miss my old one.
I know the feeling :(
This is so awesome to see
amazing series!
god this is good content! keep it up boys...
i learnt about anaerobic sealant a couple weeks ago when researching how to drop the pan on my Saab. i guess there's less concern when laying it on thick as the excess that makes its way into the oil won't have hardened
+steve6493 Exactly and the little contamination that does happen will be gone at the next oil change.
@ 4:50…. we think it's always a good practice to pack the roller bearings with grease and also apply to bearing chase, then if you want to spray assembly lube then go for as well ….
I don't think you need grease in these bearings.. they will soon be slathered in gear oil which will do the lubricating
Tony is the bomb.
Tony is the "Task Master!"
hope not to offend anyone but when your trying to remove dog teeth on 930 gear you can tig weld some tabs on the dog teeth and use a puller.
Just a clarification only g50 and newer (MY 1987+) transmissions have one piece dog/gears. All 915 derivatives have removable dog rings getrag and Porsche sell replaceable dogs. There is also a special tool used to press the dogs off the gears so you don't have to grind them off. Each gear pair is about $1000 it's worth buying the freaking tool for $100
Also. If those rings are Rausch and spiegel gears for 1st and 2nd they ain't going to fit when installed back into the intermediate plate. Ask me how I know.
Thanks for the knowledge John. Since this was a one time deal, we figured we'd do it the hard way but good to know the tool is so cheap.
Hoping someone see’s this.
Just picked up one of these for myself and I’m having issues w my transmission.
Could you give me estimate of how much does the transmission rebuild cost.
Great work
(1)@16:00 why do you need the paper gasket? can you make one by yourself by cutting a regular paper?(2)19:30 - 19:40 what is Tony doing? Is he making marks for 2 bolts? why?
There's a press tool to separate the dog-ring from the gear, I've rebuilt about four 914 gearboxes and it's been a lifesaver
Tony rarely does these rebuilds so for us to spend money on the tool made no sense.
I enjoyed the whole series ...and your channel. I do have a question ....I have similar black 79 930 @outlaw3.4
How long - once on Tony’s bench did that take ...first bolt off last bolt on ?
It took less than one working day, about 6 hours to do.
FWIW that gasket can be relatively easily reproduced. Anyone with a fiber or CO2 laser could cut some new gaskets, out of whatever material you want, in no time for you.
how much did the engine and tranny rebuilt cost??
the magic is you meeting lots of great friend who loves car
After going to this trouble I'm surprised you didn't replace the bearings for extra insurance.
the bearings are a low wear item if no issues in the box. Plus, they are stupidly expensive.
great vid, thank you.
Is butter really smooth?
+Princess Peach I don't know what butter you're eating but ours is always silky smooth. :)
+Princess Peach I don't know what butter you're eating but ours is always silky smooth. :)
Speed Academy
It depends on the temp. I would maybe go with this for smooth:
www.amazon.com/Passion-Lubes-Natural-Water-Based-Lubricant/dp/B005MR3IVO?ie=UTF8&keywords=drum%20of%20lube&qid=1463455065&ref_=sr_1_2_a_it&sr=8-2
That guys knows his shit!!
Is there a break in period after such a rebuild? Thanks.
Nope, it's ready to go!
Thanks. So, if my indy shop told me my g50's shifting would get smoother over next 1k miles, that would not be accurate?
I assume they mean parts will loosen up or work themselves in but I cant comment on that since mine shifts the same way it did from day 1 after the rebuild.
That mk3 supra though ;)
Did I get it right it's got an open diff from factory?
Yes, its an open diff.
spellbinding seeing this porsche transmission rebuild
Nice
No LSD?? I think that box comes apart again as soon as you begin using it :)
+Leofred No funds for it. I had to focus on the engine but maybe I'll do an LSD in the future.
Speed Academy "...maybe I'll do an LSD in the future". Oh no doubt, the question is rather how soon :)
why not putting it in a lathe and turn the synchro's off, awesome video btw
The metal is way too hard, it would ruin the bit.
Who's maroon mk3 supra was that? 1:05
+digigl21 Check our IG page for photos of the engine bay, it's got a massive single turbo and built engine. The car is owned by one of the shop mechanics at UMS Tuning.
is this guy located in California
Why does the freezing and heating thing work?
I get that the metal expands but wouldn't you want the bottom gear to be larger and the top thing so be smaller.
+Camhin1 You do that to enable an easy assembly. Once they're assembled, and have adapted to room temperature, the outter ring (Top piece) concracts and the bottom gear (inner ring) expands.
+Camhin1 Nah.
The Smaller Top gets hot and expands
The Bigger Lower part gets cold and shrinks.
The clearance (most likely not that much to measure) gets bigger, and you can slip it right on.
After it cooled down/Warmed up its normal.
GEMC Thanks!
greit wen close the up whit alluminium!!
and look at that one more video done
Is this a G50?
Type 930 - 4 spd
Love the video series, but that carousel music in the background is extremely distracting.
Agree !!!
These guys don't charge enough for what they do. No way in hell I could do that. I could, it just wouldn't work and most of the parts would still be on the work bench when I finished. ;)
2nd april 2020... it has 911 likes!
140 ft/lbs would have been LOVELY... 300+ 1/4 turn (roughly 350) for the axle nut on the 944 :( Had to go to a truck shop to get that much done.
+Jari Boone That's insane! Definitely a truck stop job, who owns a torque wrench that'll go that high at home?!
Literally no one in western NY that I knew haha.
you can make your own gasket using loctite 518. honestly it's alot better than that shitty paper.
I'm disappointed Pete. All this money spent and you kept it open diff? :(''''' Shouldve opened a new loc and gotten one if u needed to. Totally worth it!
why does the gear have to be put in the freezer? edit: probably should have just watched the rest of the video :)
Fastest 21 minutes ever...
I would think the 930 would be a 5 speed.
great video...didn't think tony could do it .....but did we need that annoying bing bong bell music in the background....???
Still hurts my eyes and heart to see it being all rebuilt without cleaning the case and housings 100%. Or even just a basic VHT paint :(
It was washed and cleaned, what you see is as good as it gets without getting into a very time consuming cleaning job.
Speed Academy where is this gentleman located I'm in California
its 4:14 am :) why am i awake
+Levi Andazola Because Porsche transmission rebuild. :)
I love these videos, but the constant out of focus hurts me eyes
The pitfalls of using a manual focus lens and camera body.
I am surprised that there isn't an alternative to the Shitty Paper Gasket!
Gotta use the OE Porsche stuff so ofcourse they havent updated it!
We have a very different method for taking off the dog teeth ring.
23 nov 2019 7:33 am est:thanks.11:57 show open-differential. i wonder whether open-differential use bevel-gear to connect to transmission-gear
23 nov 2019 8:35 am est:
i assume bevel-gear connect transmission-gear to open-differential after watching this other movie:
(1)th-cam.com/video/XocIZI5akXI/w-d-xo.htmlm40s (#2 Porsche 996 transmission Core Factory Limited Slip.No! This is an open diff!) from youtube-search(porsche 911 differential)result 6
(2)th-cam.com/video/pU0M5mrlTvc/w-d-xo.htmlm5s (How to Remove and Replace a Porsche 997.1 GT3 Differential) from youtube-search(porsche 911 differential)result 1
No LSD? You're on LSD...
That music is so annoying. Or is it the phone? Somebody answer that!
I want some gum now
This guy obviously has skills and has been working in his field for a long time.....but i can't stand the messy work station and nuts and bolts being put everywhere and the bashing of parts. Feels like a hack job. A clean job is a professional one.
I agree, a bit rough with that rattle gun on the hardware when disassembling the gearbox.
What the actual fuck, thats not how you remove those.
_italics_ has a porsche 997 so dislikes
jk
skill tech. very dirty bench. don't like.