Hammerhead

I need advice on removing the original intake runner gaskets. Some are stuck to the runners and some are stuck to the block. What is the best way to remove these? I have used carb cleaner with little luck.

From what I have read on other posts, I'm assuming RTV remover and a razor blade will work.

Some of the gaskets came right off. Did Porsche install these gaskets with some type of sealant? Also, when I install the new gaskets, do I need to use some type of sealant?

This is my first time dealing with this type of thing.

Thanks.

John Speake

When I replaced mine, I didn't use any sealant. If you clean up the surfaces and remove any burrs, then you shouldn't need any sealant

Sean79 5spd

Try some brake cleaner or the like. Wet the old gasket and let sit for a while then work carefully with a razor blade. This worked well for me.

I don't believe Porsche uses any sealer. I did not and have had no leaks

Hammerhead

Thanks, I'll give it a try.

Hammerhead

OK, I've worked on it for approximately six hours. The old gaskets seem to be fused to the block. Do I need to removed all of the residual from the old gaskets? I've gotten to the point where the razor blade is scratching the block more than removing the old gasket material. I'm able to smooth the old material with a scrub cloth. I'm afraid to scrape anymore with the razor blade.

What do you guys think?

Marc Schwager

Alright somebody slow has to ask. What the heck is an intake runner?

Hammerhead

I'm referring to the eight metal tubes that run from the upper intake manifold (rectangular thing with porsche crest, on center top of engine) to each intake port on the block. I'm apologize if I'm using the wrong terminology.

Marc Schwager

Thanks. Sounds like a good name for them, I just didn't know the term. It sounds like everyone else understood what you were talking about. BTW, The WSM calls them "intake pipes" . PET calls them "intake manifolds".

Good luck with the gaskets!

Rez

Someone here said it and I thought it was a great idea.

Go to the hardware store and get a paint scraper. It's used to remove paint off a window. Works like a champ. It has a thin, razor-like blade on the end of a handle.

GlenL

The new gaskets should go on with no sealer.

After twenty years soaking up oil the gaskets can get stuck on pretty good.

Have you tried some lacquer thinner and a green 3M pad? Takes some work, but does the job. Don't use steel wool as you'll never get all of the bits out of the intake. I hope you stuck a rag in each passage before starting...

Hammerhead

This is what it looks like right now. I removed the rags so you could see better. Note: I have left one of the original gaskets in place, it absolutely will not move.

Hammerhead

OK, I'm going to the store to get laquer thinner and green 3M pads and a paint scraper.

Is it OK to leave original gaskets in place if they are undamaged? I've got one attched to the block and two attached to runners.

Sean79 5spd

One thing I have done in the past is to use the blade from a wood plane, lay it flat up against the offending gasket and then tap VERY CAREFULLY with a small hammer. You must ensure that the blade stays falt against the metal. This can get the gasket to start lifting.

Lizard928

use a dremel w/ a nylon thread brush and go very lightly over the surface not staying in any place for long at all.

SharkSkin

Get some Permatex gasket remover. IIRC it comes in a spray can, but you can spray it into a container and brush it on. I recommend that you spray it into a plastic cap of some kind FAR AWAY from your car or any paint that you care about. Then just brush it on to the gaskets with a small $0.10 acid brush.