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Model Specific Questions and Info => MK3 Golf/Jetta and B3/B4 Passat => Topic started by: TDI_guy on May 31, 2016, 09:03:48 pm

Title: MK3 TDI won't start after Timing belt/water pump
Post by: TDI_guy on May 31, 2016, 09:03:48 pm

So to start off I'm new here. I drive a 1998 Jetta TDI 5 speed. I decided to finally replace my water pump which has gradually started to leak worse and worse. So I also did the timing belt. My first time doing this as well... My first shot, I had the wrong mark on the flywheel... I had the pump locked with a tap that fit nice and snug, and the cam with a feeler gauge and some flat steel. Well when I got the belt on and went to rotate the engine at the crank with my breaker bar I had some resistance. So I obviously knew somethig wasn't right. so I stopped and found the RIGHT timing mark. Got the belt on again, rotated the engine at the crank 3-4 times with the breaker bar and everything went smooth. But when I went to start the car NOTHING! Nothing but a big cloud of blueish smoke from under the hood near the intake manifold... Do I have it out of time yet? I checked and rechecked and everything seems to be perfect! Did I bend the valves by screwing up the first time... Maybe the cloud of smoke is from it being slightly out of time?
Thank you in advance everyone!

Title: Re: MK3 TDI won't start after Timing belt/water pump
Post by: vanbcguy on June 01, 2016, 10:26:26 am

The pump timing could well be off - the lock pin on the AHU just acts as a reference and gets you close, it is in no way accurate.

I very much doubt you have damaged the engine with the breaker bar unless you were jumping up and down on it!

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Title: Re: MK3 TDI won't start after Timing belt/water pump
Post by: TDI_guy on June 01, 2016, 10:38:31 am

Awesome so you made me feel a little better! lol. So should I try to jump the pump a tooth ahead and see where that gets me? I would go clockwise for that correct?

Title: Re: MK3 TDI won't start after Timing belt/water pump
Post by: theman53 on June 02, 2016, 08:33:22 am

See if your marks still line up, make sure they are perfect. If they are try to start it. If they are not, change it to make sure they are, and try to start it. Once started use vag com or ross tech to set timing.

Title: Re: MK3 TDI won't start after Timing belt/water pump
Post by: TDI_guy on June 02, 2016, 03:41:06 pm

I got it to run and it was running good, started right up. Put about 50 miles on it. THen there was a loud pop. Loss of power and it sounds like it's misfiring... What happened now??

Title: Re: MK3 TDI won't start after Timing belt/water pump
Post by: TDI_guy on June 02, 2016, 03:41:34 pm

I got it to run and it was running good, started right up. Put about 50 miles on it. THen there was a loud pop. Loss of power and it sounds like it's misfiring... What happened now??

Title: Re: MK3 TDI won't start after Timing belt/water pump
Post by: TDI_guy on June 02, 2016, 04:26:25 pm

https://www.youtube.com/watch?v=kBdX4kWoZSo&feature=youtu.be

Here is a video of what it sounds like...

Title: Re: MK3 TDI won't start after Timing belt/water pump
Post by: vanbcguy on June 03, 2016, 03:24:33 pm

Definitely doesn't sound happy. I'm guessing a compression check will show a dead cylinder.

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Title: Re: MK3 TDI won't start after Timing belt/water pump
Post by: air-cooled or diesel on June 29, 2016, 01:04:09 pm

Quote from: TDI_guy on May 31, 2016, 09:03:48 pm

.. My first shot, I had the wrong mark on the flywheel... I had the pump locked with a tap that fit nice and snug, and the cam with a feeler gauge and some flat steel. Well when I got the belt on and went to rotate the engine at the crank with my breaker bar I had some resistance. So I obviously knew somethig wasn't right. so I stopped and found the RIGHT timing mark. .. Do I have it out of time yet? I checked and rechecked and everything seems to be perfect! Did I bend the valves by screwing up the first time...

you did this correct you felt enough resistance, and stopped right there, sounds right. (then timed right). -but a sudden miss&or compression loss can easily be a valve. like that if it is a valve you may have up to 5 or maybe 10minutes, miles will make it worse.