FN timing belt!
 

Jeska fired up the 951 this morning. It ran for about 5 seconds and then died.

Cranked and cranked and it would not start.

Read all the "no start" threads. Traced my no spark issue clear to a stripped out timing belt:soapbox:

I just put a timing belt in this car 2 years ago and maybe 10k miles.

Damn, sorry to hear. I feel like I'm on borrowed time every day.

Just for the record, what brand belt was this, when was last retension, what method was used to set tension? And I assume the rollers and pullys were not the cause?

wow that sucks.

I will have to dig out the receipts for the brand. I bought them from pelican.

Retentioned at 1500miles.

Any front seal leaks?

I too would like to find the reason

Front seal was replaced on the last timing belt job.

Very frustrated with the car. Not sure what I'm going to do yet.

Just finished a timing belt job on my 928. Have our Audi A6 torn down to the timing belt at the moment to replace a bad thermostat.

Not sure I have the heart for rebuilding the top end if this 951....again...

Yikes! That's terrible.

At idle you might not have bent valves. Here's hoping.

There have been a few mysterious early tbelt failures posted to this forum, I do not know if anyone ever figured out what caused them. Rollers, water pump, lack of retensioning, etc. It's probably more common that the tensioner stud backs out or breaks. I suspect the stud can break if the belt is put on extra tight so that the belt 'wears in.' That stud is a target for a lot of force.

Good luck, it might not be a huge setback.
-Joel.

The answer is....wait for it..... LSx!!!

Sorry to hear about that Cole. Greg East had a very similar failure on his 951 a few years back. For whatever reason, timing belts that will easily last 60k+ miles on any other german car disintegrate on the 951's with alarming regularity.

http://www.rennbay.com/images/TB_RB_SINGLE.jpg

400+ on cars since 2009, no failures roller related or otherwise. :eek:

Joel, I may have to buy you some more lunch and try to barrow some of those special tools again.

Josh........the thought has already crossed my mind. I may need to come take a closer look at your car.

I probably need to finish tearing it apart and figure out what the cause was and the extent of the damage. At the moment I just have one of the covers off far enough to see the crank spin and the belt not move( and rubber teeth stuck in the crank pulley) At that moment I set my tools down and walked away!

Sorry to hear. It must be Tbelt season.

About a month ago I was rolling up to a stop sign and the engine quit. Tried to restart and only got a partial crank, no turn over. Seemed like the battery was dead or dying.
Im assuming this first crank was pistons meeting the valves because all other attempts to start are full cranks. Got towed home and had my wife turn the key while I looked through the cam pulley inspection hole. Engine cranks but Tbelt does not move.

Im in the process of 'tear'down now.... :grr:

karma perhaps? hhahaahaa :bigbye:


nah that sucks man. Good call to step away and come back to it. Tear it down and have a look. May not be as bad as you think. Good luck

Cole, I am so sorry! I had the same thing happen to me about a month ago! The head removal and installation was not as bad as I was anticipating (thankfully, no broken bolts, studs, or stripped threads). However, I was able to get the car back up and running within a week and promptly took it on a 1700mi roadtrip without any incident.

One trick I did to check for bent valves after I took off the cam tower was to disassemble a compression tester and use the spark plug side and connect it an air tank (after removing the internal valve). I would hook the tank up and listen for leaks or feel air movement. However, I knew I was in for some bent valves when I hooked the set up to the #4 cylinder and felt air blow out of the #1 fuel injector port.

As much as it is a disappointment right now, hang in there. It always seems to be something...