Certainly, you need to clean this glop out of any area where it can
interfere with the throttle butterfly, and clean it off the fuel rail nozzle
area. If one or more of the nozzles is plugged up, your performance will be
affected significantly. I don't see much hazard in leaving some of it down
in the intake manifold.
The spacer between the support plate and the intake manifold is extremely
critical as to sealing to both mating parts, and the gaskets are complex and
delicate. If you feel you must replace these, try to get NOS ones, or at
least be careful to save the originals and inspect them carefully. Any air
leak here, even very slight, will really screw up the way the car idles.
Nothing I have found is a magic elixir for dissolving the goop, I think
acetone is very good, but you must be careful around any non-metallic parts,
as it very likely will attack those too. Lacquer thinner and Carburetor
cleaner are some help
also, but basic grunt work (scraping, peeling, gouging etc.) is what we are
all reduced to sooner or later.
Dick Benjamin
----- Original Message -----
From: DAVID MORRISON <drmcross@xxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Saturday, August 31, 2002 5:47 AM
Subject: IML: 1981 Potting Material
In the process of doing some general maintenance on my 1981 EFI. I have
removed the support plate to get access to egr valve, and it is clear that
some of the potting material from the fuel flow meter and computer has
flowed into the throttle body. While there are still pools of material on
the support plate, the throttle definitely needs cleaning and at least one
injector is coated with black goo.
Does anyone have a suggestion for cleaning the goo off the plate (thought I
would start with "Goo Gone")? I am already replacing the spacer assembly
between the intake manifold and throttle body... but how worried do you
think I should be about cleaning this out of the intake manifold too?
Dave Morrison
81 EFI
82 FS EFI (still for sale)
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