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awolak · Joined: 10 Jun 2010 Posts: 53 Location: Middletown,CT

I have just replaced the timing belt and left the cover off cause I suspected the belt was rubbing on it due to wear marks on the old belt. I centered the belt on the cam pulley when I replaced it and after running it for a bit the belt has traveled towards the front of the engine and now overhangs the cam pulley about 1/16 ". I centered it again and it does the same thing. Could it be the tensioner is worn and causing the belt to travel? What do you guys think? Thanks in advance.

SlayerSST · Joined: 21 Sep 2010 Posts: 212

Yeah it is the tension pulley. Get a new one and problem solved.

CorsePerVita · Joined: 25 Jul 2008 Posts: 1992 Location: Redmond, Oregon

The tensioner pulley greatly regulates how far the belt is forward/back. If the pulley itself doesn't have weird play, make sure the crank pulley isn't having issues too. It's unlikely, and very likely the tensioner pulley. But it's always good to check clearances on stuff "while you're down there"...
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- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS

Grenadiers · Posted: Tue Apr 23, 2013 4:48 am Post subject:

Also, and this is purely anecdotal (my one and only experience, worked for me), you might not have the belt tight enough.
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'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

awolak · Joined: 10 Jun 2010 Posts: 53 Location: Middletown,CT

Thanks guys, I will start checking and post what I find.

awolak · Joined: 10 Jun 2010 Posts: 53 Location: Middletown,CT

Well I just got around to changing the tensioner, haha. We moved to a farm and farm things took precedence.

I posted a few days ago about timing belt woes and was so zeroed in on why the car wouldn't start I forgot to mention that with the new tensioner the belt still does the same thing. It travels towards the front of the car and over hangs about 1/16 inch.

What clearances should I be looking at and what else if anything?

Thanks
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1982 924 N/A
2011 Nissan Rogue Krom
2006 Range Rover Sport HSE
2002 BMW 330 CI
2000 Audi A6 Quattro
2000 Chevy Tahoe LS