911 *critical failure* pics. Post your WORST!

[Craig 930 RS]

I'll start -
Components on the shelf at our local Porsche shop - "The Wall of Horrors"

[Craig 930 RS]

"I think a valve is loose"

[Craig 930 RS]

From my own engine. Unknown cause:

[JeremyD]

[Craig 930 RS]

Pinion grind! 2nd to 1st shift....redline, in a race (not my car)

[TimT]

[JeremyD]

[TimT]

[TimT]

[Jim Richards]

Hmmm, I don't see the problem.

[TimT]

I can keep going

[Cory M]

This is a great idea. Hopefully it will get people to pay a little more attention to the areas of common failures so that future problems can be spotted early and avoided.

Here is my contribution, the ever popular rear sway bar bracket (since repaired with Wevo bracket).

[Cory M]

This one isn't my falure but I'm posting the pictures so maybe people will take a look at their wheels from time to time, these are quality 3-piece racing wheels from a manufacturer with a very good rep

[gassy]

This is the most painful thread on the internet.

[Craig 930 RS]

WOW Tim.......major engine blow uppage. WoW.

[FenderGuy]

Worst clunking sound I have heard before taking it in to the shop, mechanic pulled the oil and out came what was left of a piston




Anyone up for an engine tear down

[carmad]

Not as spectacular as some of the previous posts. This did not make any noise.

[sjanes]

Originally posted by Cory M
This one isn't my falure but I'm posting the pictures so maybe people will take a look at their wheels from time to time, these are quality 3-piece racing wheels from a manufacturer with a very good rep

A friend of my that has the same 3-piece racing wheels I do (same type as the ones in this pic) emailed in Aug to tell me to check my wheels. His also cracked. He contacted the manufacturer and was told "it's a race part and a consumable. We'll give you cost on a new set". At the next event, he went around the paddock looking at wheels and found cracks on another car (forged wheels from a different manufacturer).

Check your wheels folks!

[Bobboloo]

Oww my eyes!!! I can't look away!

[Early_S_Man]

The following illustrates why a distributor needs periodic preventive maintenance [by the owner/mechanic] ... I wonder how many failures of the ground wire for the point plate has caused a hefty bill to replace a perfectly good Bosch or Permatune CDI unit after car was towed to the shop???

Yes, it broke at 49K miles on my car, in 1982, and killed the engine DEAD because of no spark ... about 1/2 mile from the house.

The pics below show the break and the completed repair job. The original strap is spot/resistance welded to the nickel-plated point plate and anchor mount.

Soldering won't work, but a very easy repair is to make a new strap of braid or stranded wire, and solder small eyelet ring terminalss on each end that can be secured under available screws ... one of the point's anchor screws at the 'flex' end and one of the body screws at the fixed end. Permanent end of problem!

About three years after I did my repair, I bought a 184-series RS 2.7 distributor from PMO, and found out Bosch fixed the problem in later production variant by switching to a braided strap and crimping a lug onto the ends of the strap and spot/resistance welding both braid and terminal lug to the nickel-plated steel point plate and mounting base plate.

Notice on the pics below that I put heat shrink on the strap where it goes by the points' Faston connector. In the upper pic, the point of the break occurred at the end of the strap immediately at the point where the spot weld terminated at the strap at the 'flexing' end of the strap. That stress point is eliminated in my repair and in the later Bosch crimped straps ... because the entire braided strap is forced to flex, instead of the stranded wires at the point of the spot weld!