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rdudejr · Joined: 30 May 2005 Posts: 63 Location: Atlanta, GA

I dont know if you guys read my post about the little issue I was having after I had the clutch swapped, but I think it was alluding to a serious problem. As I was coming down the interstate in my 924s in stop and go traffic I engaged the car into first and heard a terrible clunking noise in the back, with no power going to the wheels. Luckily a nice guy was able to take a chain off his truck. Long story short I thought that the gearbox was shot. I had the car taken to a mechanic local to me and he said that the bolts that connected the CV axle and allowed the drive shaft to transfer power to the rear wheels had blown loose/off and once he replaced those the car ran beautifully. Im getting it back monday so Ill know if the car feels any different, but in the meantime, does anyone know what would have caused this? I havnt had any work done there and I dont think that changing the clutch involves anything around that hemisphere of the car. Am I alone with this incident or has this happened to others of you? BTW please excuse me if my knowledge of cars shows through here, im retelling the issue and terminology as best as I can remember :-p
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gohim · Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA

The tranny must be moved rearward to make room to replace the clutch. It is very possible that the mechanic removed the bolts to disconnect the cv axles when he moved the tranny back, and he did not torque the cv bolts properly properly when the tranny and cv axles were restored.

If this is the case, then the mechanic should be responsible for the replacement of any damaged or lost parts, and the labor or other expenses necessary to get the car fixed properly.

rdudejr · Joined: 30 May 2005 Posts: 63 Location: Atlanta, GA

Thanks for the reply Gohim, ill look into it!
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Paul · Posted: Sun Mar 26, 2006 9:34 am Post subject:

I agree completely, whoever did the clutch job owes you big time. A small claims court would have a picnic on this guy.

I would have your local mechanic check the torque on everything that had any thing to do with the clutch job.
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rdudejr · Joined: 30 May 2005 Posts: 63 Location: Atlanta, GA

I really hate to hear that because the mechanic that did it is a friend of mine and generally does good work...any other parts that I should be concerened about being under torqued?
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Paul · Posted: Sun Mar 26, 2006 9:53 am Post subject:

In that case, I'd let him check the torques. Did you take it back at the first sign of trouble?

I always mark every external bolt, nut, fastener, etc with a yellow construction crayon after I have applied the final torque.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

rdudejr · Joined: 30 May 2005 Posts: 63 Location: Atlanta, GA

Thats a bright idea! Well I called him when I felt/heard a disturbance whenever Id lay on the gas, and he said that hed take a look at it, but I hadnt had a chance to get it over to him. He lives a few hours away so I normally take it to him with non emergency things, althoguh he told me that with this new issue (at the time I had no idea it was the CV axle, i thoguht it was the gear box gone out) he told me I could ship him the car and hed replace the gear box for free. Nice guy he is. He normally works on Japanese imports and we had a simular issue with him under-torqueing a bolt when i first got the car and had front of engine service. It was one of the pullies i believe and it caused a seal to loose pressure and consequently lost oil pressure in the car. You wonderful people here pointed me to the problem and he took it apart and retorqued it and set me on my way!
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gohim · Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA

If this is the second time you have had an issue with him undertorquing bolts I would say, no more chances, not my cars.

Friend or not, nice or not, incompetent is incompetent.

If he doesn't have any experience working on 924S/944 cars, he has no business working on yours. It appears that he does not have a manual for the car, does not use it, or does not use a torque wrench.

rdudejr · Joined: 30 May 2005 Posts: 63 Location: Atlanta, GA

Yea he doesnt have experience working on 924s, but I generally feed him the step by steps to doing work I ask him to do. I would do it myself but I lack tools a garage and time. And I would rather not take it to a Porsche mechanic here in atlanta as the average rate for them is 175/hour, doubling and tripling what my current mechanic charges me. So I guess I take a chance each time I get it worked on but I think in the end, dont you always do that when you dont do the work yourself?
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Joes924Racer · Posted: Mon Mar 27, 2006 2:45 pm Post subject:

yea you alwaystake that chance.. I guess he didnt know to torque those cv bolts down..wow 175 /perhr here its 65 though thats a privete
porsche place not the porsche dealership Id never take it there either.
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gohim · Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA

Yes, you are always taking a chance when you let someone else work on your car.

BUT, the guy you insist on taking your car to has screwed up twice with serious consequences. Taking your car to him is no-longer a risk, it's a certain disaster.

When he didn't tighten the crankshaft pulley, and you got no oil pressure, what you think that did to your engine? Without tearing down the engine you can't tell for sure, but I can bet you that you did some bearing damage. Is your buddy with the shop going to replace your engine? Nope.

Now he drops a CV because he screwed up again. Forgetting to properly torque the cv axle bolts is incompetence, it has nothing to do with his not being familar with Porsches.

What will it be next time? Are you going to survive his next mistake?