Re: 20v RPM's not dropping

[Andrew Duane USG/PE <duane@zk3.dec.com>]

Hairy green toads from Mars made Brooks Ellis say:

>         I was driving a '90 20v Coupe Q the other day, and I noticed that
> when I took my foot off the gas and hit the clutch at the same time, that
> the RPM's would not drop right away. They would stay at the same frequency
> for about a second, and then drop. 
>         I have driven other 20v coupes and they did not have this problem,
> nor does my 10v.. 

This happened (sort of) to my '89 100Q. The problem turns out to be
the dashpot plunger inside the throttle body. Sometimes, the plunger
corrodes a little and makes it too sticky for the spring to return
quickly (or at all: this cuased my 2500 RPM idle).

My mechanic discovered that you can't get a new dashpot, it comes
with a new throttle body. Right. $400 for a $1 spring/plunger.

He took it out so I could look at polishing it or finding something
at a boneyard. I never did. 2 years later, the car runs fine without it.

-- 

Andrew L. Duane (JOT-7)			duane@zk3.dec.com
Digital Equipment Corporation		(603)-881-1294
110 Spit Brook Road			http://www.zk3.dec.com/~duane
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she's too heavy to care.