Possible Transmission Failure

[RWebb]

diagrams are in the PET, go to Porsche's web site for them - parts diagram


if not recessed:
see if you can grab it hard with vice-grips and turn it out

if recessed:
go buy a left-hand drill bit to get the broken bolt out - if lucky you will not need to drill it all the way out and the LH force will encourage it to come out

[lucasdw63]

Hey guys here is a pic of what I am dealing with. The white arrow points to the sheared off bolt that needs to be removed. At this point I plan to use an extraction tool unless there is another way to do this.

https://www.dropbox.com/s/lp46csoksn5i9ku/Presentation1.jpg?n=73475247

[lucasdw63]

Really glad it happened close to home. It gives my wife one less reason to tell me to get rid of the car.

I finally got around to pulling the axle so I could get to the broke bolt. after I dropped the axle a couple of the bearings dropped out- is this normal?

I am now soaking the assembly in cleaner so I can repack it with grease before re-installing.

[Trackrash]

Check the bearing contact areas for any signs of pitting or galling.

[Lapkritis]

Originally Posted by lucasdw63

Really glad it happened close to home. It gives my wife one less reason to tell me to get rid of the car.

I finally got around to pulling the axle so I could get to the broke bolt. after I dropped the axle a couple of the bearings dropped out- is this normal?

I am now soaking the assembly in cleaner so I can repack it with grease before re-installing.

The ball bearings can fall out... they're important to put back in the exact place so the joint functions properly. Wipe everything up until perfectly clean, use new grease and reassemble the puzzle with all the balls. Be gentle with the balls...

[lucasdw63]

I extracted the broken bolt and cleaned everything up. I decided to replace both CVs - awaiting parts from our sponsor.

[Jdub]

Cannot emphasize how lucky you are on this. You'd be weeping over a cracked transmission case when the axle self-destructed and whipped around at speed, worst case.

Drama aside, you cannot get away from a very careful analysis and recon. of the issue. Buying new bearings is wise I think for a 130K and up car, esp. on the drive side. But I'd check the other (left) side - did you mention mileage? - to be sure nothing is going to act up over there. You might get away with carb cleaner and Q-tips and a very good fitting allen socket for that side.

I had to helicoil one or two of the threads on the trans-side flange and plan on finding a good used one to install - I rebuilt mine with new bearings and am very happy. Do be certain to browse the links provided in this post. This is a good thing - messy but peace of mind fix for certain. Check you door stops next

[lucasdw63]

Jdub, thanks for the insight! The car has 86K original miles! Everything is all cleaned and just waiting for the new parts. I will report how the reconstruction goes. Next on the list of things to do is track down a bloody oil leak!!

[Joe Bob]

Replacing CVs and greasing them up is a dirty, smelly nasty job.

PMB Performance is a Pelican vendor. Consider a set of prebuilt axles......swap them in. You'll thank me. BTDT.

[lucasdw63]

Joe Bob:

Thanks for the info.

[lucasdw63]

All parts are in and I am rebuilding the shaft. Two questions:

There is a groove around the new bearing, does it matter how it goes back on the axle?

How does the concave washer go back onto the shaft? if it goes on concave side against bearing i do nor have enough room on the axle to fit the circlip?

[lucasdw63]

CV bearings have been replaced and the car runs like a champ again. Thanks all for the support!

[Uncle Enzo]

Make sure that after 100mi or so you get back under there and make sure they are all still properly torqued down.

[lucasdw63]

Will do. While under their I checked the torque on the left side and everything was sound.