Author Topic: Do VW diesels ever jump timing? (Read 4807 times)

Busdriver · « **on:** April 12, 2006, 08:12:53 am »

I have a AZZ that has decent compression, and cranks, but won't start (it was running). The glow plugs are working. Could the timing slip one belt notch & so that the engine won't run, without being so far off that valves are slamming into the pistons? :?:

BlackTieTD · « **Reply #1 on:** April 12, 2006, 08:22:19 am »

pretty sure even 1 tooth will slap valves... does it turn over by hand if you put a socket on the crank?

Busdriver · « **Reply #2 on:** April 12, 2006, 09:18:38 am »

Yes, I can turn it over by hand.

BlackTieTD · « **Reply #3 on:** April 12, 2006, 09:24:44 am »

what has changed since it started last?

is it getting fuel?

do you have 12v to the stop solenoid?

Kevin L · « **Reply #4 on:** April 12, 2006, 11:30:35 am »

I have had a timing belt drive sprocket/pulley come loose and break it's key while driving home. It continued to loose power (smoking) untill it quit leaving me on the side of the road. Talking to a couple of shops they said all the valves were bent and I should go look for another motor.
Being stuborn I put another (used) pulley and bolt in with a new belt, retiming it as well. I was lucky it ran for another 120K

This was a 1.6NA jetta

you may be lucky