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Nigel Tufnel Wannabe
 
tchudy's Avatar
 
Join Date: Sep 2011
Location: Channahon, Il
Posts: 191
944T Engine Expert

Looking for someone in the Chicago area that knows the 944T engine very well. I just completed a rebuild and have an issue I am concerned about...slight lifter tapping. I've read tons of info on the subject but I want someone to have a listen and advise. Willing to pay for a service call just for advice. Can trailer the car if I have to.

I am located in Channahon, IL, just off of I55.

Thanks...Tom
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1986 Porsche 944 Turbo Project.
2005 VW Jetta GLS
2000 Toyota Solara...boring to drive but good mileage.
1971 VW Super Beetle...sold it to make room for the Porsche.
Old 06-15-2014, 09:21 AM
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Join Date: Apr 2014
Location: Cleveland, Ohio
Posts: 33
Oil pressure normal? Pressure relief alligned properly?
Old 06-15-2014, 03:25 PM
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Join Date: Oct 2007
Location: Northern, CA
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Garage
I would use a oil treatment called sea foam. Just buy a pint pour in engine and drive normal for 100 miles. And by normal I mean Porsche normal rev it to redline here and there, drive it on some twisters a real road test.....
The ticking should go away as it sounds like several instances I have had after having a cam tower off a lifters sitting for a long time then rebuild motor goes back together and the ticking just seems like 1 or 2 lifters won't go away until I get it real hot and flog the engine awhile.
Old 06-15-2014, 08:42 PM
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Nigel Tufnel Wannabe
 
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Join Date: Sep 2011
Location: Channahon, Il
Posts: 191
Yes, oil pressure normal, updated OPRV aligned on install. Lifters were very slightly used (like a couple hundred miles). I soaked in Marvel Mystery Oil for a couple of months and then pumped them up before install. They seemed okay, but I have no previous experience with these lifters. Sounds like just one of them tapping.
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1986 Porsche 944 Turbo Project.
2005 VW Jetta GLS
2000 Toyota Solara...boring to drive but good mileage.
1971 VW Super Beetle...sold it to make room for the Porsche.
Old 06-16-2014, 03:33 AM
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Join Date: Jun 2010
Location: AZ
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Could be an exhaust leak. Had a suspected lifter noise on our '88 924S SE, and turned out to be an exhaust leak out the manifold on the #4. Check your nuts!!
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1989 944 Turbo currently a garage queen
1988 924S ugly dented track car
1983 944 Track Car, Ford F350 diesel
2004 Jeep Wrangler Unlimited - Built!
2004 Winnebago Vectra track day motel
Old 06-16-2014, 04:57 AM
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Nigel Tufnel Wannabe
 
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Join Date: Sep 2011
Location: Channahon, Il
Posts: 191
Definitely not an exhaust leak making the noise...not to say that I don't have one...I think there is a small one south of the header I'll need to check out.
__________________
1986 Porsche 944 Turbo Project.
2005 VW Jetta GLS
2000 Toyota Solara...boring to drive but good mileage.
1971 VW Super Beetle...sold it to make room for the Porsche.
Old 06-16-2014, 05:29 AM
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