missing teeth?

[Livolsi, Stephane]

I just have to ask (those in the know) about these missing flywheel ring
gear teeth.  Is this really all that common?  I have read many posts about
this over the years and is seems to me that it would take quite a bit to
knock those teeth off......

Stephane

> ----------
> From: 	Beatty, Robert[SMTP:BeattyR at ummhc.org]
> Sent: 	February 19, 2001 6:22 AM
> To: 	'mike harris'
> Cc: 	'quattro at audifans.com'
> Subject: 	RE: location of serial number on 5ktq engine
> 
> Mike,
> 
> There is another possibility for the car not haveing the right power even
> thou it has the correct boost.
> 
> It could be a broken tooth on the flywheel starter ring gear.  The ECU
> counts the teeth to help with timing.  Missing a tooth will cause the
> count
> to be in error and the ECU goes to a full retard (I think!!)  I know this
> because my car is the same year/model as yours and while changing my
> clutch
> in dec, i found a broken tooth.  As i didnt have a flywheel to replace it
> with, i had to put it back in.  I will be replacing it in march i hope and
> then my performance should come back up.  I also have been able to compare
> my car with my dads (stock 86 5ktq)in performance and he easily outruns me
> in low rpm ranges, but once boost kicks in (i have a 1.8 bar spring/ecu
> mod)
> i can catch him.  I'm not sure how else you can detect this problem
> without
> pulling the tranny and looking at the flywheel, perhaps someone here on
> the
> list has that wisdom....  
> 
> Rob
> 
> ps the parts for this arent expensive, its dropping the tranny thats the
> hard part.
> 
> 
> 
> -----Original Message-----
> From: mike harris [mailto:mh1492 at yahoo.com]
> Sent: Sunday, February 18, 2001 11:54 AM
> To: quattro at audifans.com
> Subject: location of serial number on 5ktq engine
> 
> 
> Received a few e-mails concerning my question as to
> how do I tell which engine is in the '87 5000tq. All
> said get the numbers off the engine and post them here
> and someone should be able to tell me. I went back to
> dealer late yesterday but it was closing time and
> getting dark so I was rushed. I looked around the
> engine and found no plate with the numbers on it. Can
> someone give me a hint where it might be located? The
> head had a number stamped on the side 035-103-373. The
> wastegate was 035-145-705, manifold 034-133-233 and
> that was pretty much it.
> When I drove it boost was 1.3 and hit 1.4 once but the
> engine feels weak for the 165 hp it is suppose to
> have. The compression test that was done 2 days was
> excellent, there are no vacuum or exhaust leaks which
> is why I'm wondering if the older style engine had
> been swapped. I went through Scott M site and searched
> the audifans google archives looking for help without
> much luck. Thanks
> 
> Mike H
> '98 A4
> 
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