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Targa Me 09-11-2018 09:25 AM

3.2 Intake Insulators Gaskets
Hello Everyone,

I have a quick question...

What sealant is recommended for the insulator gaskets on a 3.2 ?

thank you.


steely 09-11-2018 01:30 PM

I didn't use any.

gtc 09-11-2018 02:07 PM

From the engine sealant thread:

Originally Posted by Henry Schmidt (Post 5234978)
On an engine with intake insulators, we use Three Bond 1194 between the head and insulator (no gasket) and 574 (very thin) on both sides of the top gasket.
If the intake is something that may need to be removed, we do the same except trade Curil T for the 574.
This method eliminates a gasket and seals well.

Quicksilver 09-11-2018 02:11 PM

Using Porsche's stock parts you use a gasket top and bottom of the insulator with no sealant.

But I'm not inclined to disagree with Henry. I do wonder if he seals the insulator down so it stays in place during occasional manifold removals on a race engine.

DRACO A5OG 09-11-2018 02:19 PM

I used this upon recommendation of several veteran re-builders, brown tar like stuff:

Just a very light coat, you don't want excess to go down the intake.

Flat6pac 09-11-2018 02:21 PM

I have seen, because of the wall on 3.2 gasket being thin, the gasket side pull into the intake and cause a vacuum leak.
I do replace the insulators when building with new and don't use sealants.

911pcars 09-11-2018 06:39 PM

Another gasket sealer is "GaskaCinch"; looks like very thin rubber glue, applies with included brush and easy to remove.


KTL 09-12-2018 09:51 AM

It's wise to flatten the insulators on a piece of glass (or something else known to be legitimately flat) with some fine grit wet-sand paper. If the insulators have some rough edges or nicks on their surfaces, this can invite the gasket to leak. Not to mention the 3.2 intake is notorious for showing loose barrel nuts.

Targa Me 09-12-2018 12:24 PM

Thanks for the input.

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