Fixing A G50 Porsche 911 Transaxle With A Major Oil Leak | Part 9

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My G50 Porsche 911 transaxle has a major oil from the output flange. It's slinging oil to the underbody of the tub when I drive. Fixing the leak involved cleaning the entire transaxle and then removing the differential side cover to access the faulty seal. Once we removed the seal it felt gummy and weak, so I think the new one will do the job.
Thank you to Kirk for lending a helping hand.
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Seal Driver: amzn.to/3SUMhLB
Red Rubber Grease: amzn.to/4bvMIEu
Torque Wrench: amzn.to/42AiCeO
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00:00 Introduction To G50 Leak Repair
01:01 Cleaning Old Grime Off Transmission
02:37 Drain trans oil
04:40 Remove Speedo Sensor
05:16 Remove Diff Output Flange
06:39 Remove G50 Side Diff Cover
07:31 Inspect Differential Bearing Race
08:09 Ultrasonic Clean All Removed Parts
08:49 Replace Clutch Pivot Shaft Bearings
10:08 Add Moly Grease To New Pivot Shaft
11:39 Pivot Shaft Assembly Complete and Smooth
12:18 Remove Side Cover Seal
13:40 Remove Side Cover O Ring
14:18 Install New Output Seal
15:41 Re-install side cover
16:13 Re install output flange

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Опубликовано:

5 авг 2024

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Комментарии : 30

@GarageTimeAutoResto 5 месяцев назад

Part 9 of 4. I thought this series would be finished already, ha ha😂

@jeffhammond8969 5 месяцев назад

Nice work. I would definitely change the other seal. Then you know they will have equal life and probably never have to do again as long as you own the car

@cam3002 5 месяцев назад

Adding comment for the youtube logarithm. Keep up the good work and thank you for including more attainable tasks for the DYI'ers out here.

@Mckorzi 5 месяцев назад

Great videos, always a pleasure to watch and learn 👍

@dra911 5 месяцев назад

Nicely done. If you're sure the other bits are not leaking, leave it alone? Naturally, "While you're in there" is calling...

@GarageTimeAutoResto 5 месяцев назад

This is true. I'm just glad I didn't find metal bits in the trans or a trashed differential bearing.

@MH-ev3wr 5 месяцев назад

Had the same problem getting my drain plug out of my G50 gearbox. I don't think it's necessarily the monkey who tightened it the previous time. I literally had to use a chisel and gouge it into the drain plug surface at and angle to get the drain plug to come loose. That being said, that was the first time I changed the gearbox oil on that car. Each subsequent time I've been able to get it out no problem. I use anti-seize on the threads.

@GarageTimeAutoResto 5 месяцев назад

Wow interesting. Might be the way the crush washer corrodes and sticks to the case. The oil in mine looked almost new, so it had been done recently. What oil are you using? I'm thinking of trying redline 75-90W. Supposedly works well with LSD

@MH-ev3wr 5 месяцев назад

@@GarageTimeAutoResto I use Liqui Moly 75W-90. My car doesn’t have an LSD which, from my understanding, impacts the gearbox oil to use. I do run into issues going into 3rd gear on occasion (just replaced all shifter bushings, too), regardless of whether warm or cold. I’m open to a different oil next time for sure to see if things work better.

@paulkauermann3250 5 месяцев назад

You may have figured this out already, you wont be able to install the transaxle on the engine and clutch with the release fork in place. As it uses a pull clutch the fork will need to be installed on the clutch release bearing first to allow the fork fingers to engage the pull grove on the release bearing. The usual method is to use a rubber band to hold the fork in place on the bearing and pressure plate. Once the trans is bolted up to the engine then the fork pivot pin is inserted in place. Not fun in a car, especially a mid engine install with transaxle inverted!

@GarageTimeAutoResto 5 месяцев назад

Understood, install is the reverse of removal. The shift fork and pin was removed then.

@jockellis 5 месяцев назад

Thanks for the thumbnail picture. I was wondering if I could stuff one of these into a Beetle. Guess not until an engineer adapts a paddle shift system to a VW and the driver doesn’t mind sharing the cab with the tranny.

@GarageTimeAutoResto 5 месяцев назад

I think Porsche put this drivetrain into a VW bus!

@alejonin 5 месяцев назад

Curious Q: why do you always use the manual tools. Never see you using a cordless ratchet or a small impact. Just curious. Not to tighten but to losen and remove bolts.

@GarageTimeAutoResto 5 месяцев назад

Not sure what you mean? I just used power tools in this video?

@alejonin 5 месяцев назад

@@GarageTimeAutoResto oh never mind! Carry on!

@polloloci21 5 месяцев назад

I would just leave the non-leaky stuff alone. It’s a slippery slope sometimes 😂

@GarageTimeAutoResto 5 месяцев назад

Amen. I feel the slippery-ness. Have you heard of the damn seal for the input shaft? I may do that.

@polloloci21 5 месяцев назад

@@GarageTimeAutoResto i have not but my experience is really only with the 901 and recently the Getrag 260 on the e30. If it’s easy enough to change- you might should do it- but I have no clue about G50s.

@GarageTimeAutoResto 5 месяцев назад

The dam works for 901 too. It doesn't stop a leak but it diverts the leak path down instead of ruining the clutch. It's a generic seal that goes inside the guide tube to create a dam. Then a small hole is drilled before the dam through the guide tube