Re: Violent back-off!

["Daniel Hussey" <dan_hussey@email.msn.com>]

-----Original Message-----
From: Mike Guidotti <mikeeg@mindspring.com>
To: Daniel Hussey <dan_hussey@email.msn.com>; Quattro List
<quattro@audifans.com>
Date: Sunday, September 19, 1999 8:04 PM
Subject: Re: Violent back-off!


>Hey Dan!,
>I was having similar problems with my 87 5KTQ, it ended up being a
>combination of the motor mounts transmission mounts and the exhaust hanger
>connection the the cat, (it is a metal bracket and seems to control engine
>movement once the motor mounts go ths bracket breaks cause it is rusted,
>picked one up at the dealer for about 20$$ if I remember correctly.) well
>both mounts were in 2 pieces and on the the tranney mounts was trashed
after
>replacing everything the car felt very solid with almost no "violent
>backoff"


Hey Mike.  Well, that is sorta what I am thinking too.  The visible motor
mount doesn't look cracked, but could be warn out (also, it's always the one
not visible.... by the turbo that goes first).  Car has near 120K so it's
probably time.  Tranny mounts didn't seem too bad but had some play.  I
think I will change them all as soon as I get some $$$!  ;^)

>> Items I am pointing to are the decel valve (don't really know what it
>does),
>> MAF (mass air-flow sensor) is misalighned, or I just very badly need new
>> motor and tranny mounts ....
>>
>
>your car has the CIS injection so no MAF sensor and I do not think the
decel
>valve would do it either (it cuts fuel off to the engine when coasting
>probably to save fuel and keep you from shooting flames out the tail pipe=)


Oh sorry...  Not sure what it's called, but that cylindrical thing with the
metering plate that tells the CIS how much fuel to dump in!  Not sure what
it's called.  I just remember that time we took the intake boot off mine and
what a nightmare it was to get it back on right!
Now what's wrong with flames???  Still trying to figure out how to get my
car to do that and make noises like the IMSA GTO.  ;^)

>I guess it could be something else like lots of play in the differentials
>but I would look at obvious stuff first,


I think I will check or just replace the motor/tranny mounts first and see
if that does it.  You said that basically elliminated your problem.  My
other thought is that it could be something related to the propshaft...like
the center carrier bearing or the center U-joint.

Later,
Dan

P.S. Yes, I figured it would be a two person job.  One person to wedge
something in there and lift up the motor and one to replace the bushing.