SQLGuy

I was thinking maybe "camper tape" weather stripping?

Any successful experiments here?

Thanks,
Paul

Leon Speed

I saw people use warm water pipe isolation. Readily available at your local hardware store.

Mrmerlin

SQL if you were to buy the new fuel rail covers they are insulated and are made for the GTS , but will also fit the S4.
I have a set on my fuel rails and did away with the foam,
though you could buy a stick of pipe foam and cut to fit, then use the older style covers.

fraggle

I used pipe foam from home depot on mine. Secured it with some zip ties.

Chuck Schreiber

Here's one way to do it.

http://members.***.net/my_1987s4_928...L%20RAILS.html

Koenig-Specials 928

Check Dwayne's manifold referb notes. Its in there with pictures. I followed it and mine came out great

Gary Knox

I've used the pipe foam as well. Just be sure you get the rubber foam, not the "plastic" which may melt at higher temps and leave a mess!!

Gary Knox

Whitesands

Wow this is news to me, there's nothing on mine, another bl@@dy job on the list.

Speedtoys

Hmm...kittens?

IcemanG17

I used "air"......

Speedtoys

NLA from Porsche.

Jim M.

Fuel rail Insulation, use a foam pipe insulation that looks the same as the hardware store stuff, but is good to over 350°. Called Armaflex HT (not the regular Armaflex) and is made by Armacell.

SQLGuy

Looks like those rails and injectors are going to have to come back off. I bought the pipe insulation that was conveniently available from my local hardware store. As a test, I popped a piece of it in the toaster over set to bake. It melted pretty much instantly.

As a second test, I set the main oven to 220, and put a piece in there. It melted a bit, but sort of held up OK. Not sure how hot the neighborhood of the fuel rails gets, but I'd expect 220 to be not unlikely.

I guess I'll have to check whether any of the specialty plumbing shops carry the high-temp stuff... or McMaster-Carr...

Rob Edwards

When Dr. Bob did his intake R&R, he had a couple of rolls of a thin adhesive foam that is almost exactly the width of the rails. It is very similar to the foam strips used by Porsche to cushion the fuel tank strap cradle. Being Dr. Bob, he also had some gasket cutting punches, so he covered the rails head to toe with the stuff, making cutouts for the injector rails:

Koenig-Specials 928

[QUOTE=SQLGuy;8537499] I bought the pipe insulation that was conveniently available from my local hardware store. ......... Not sure how hot the neighborhood of the fuel rails gets, but I'd expect 220 to be not unlikely.

I used the HD stuff and it's been 2 years of driving with no ill effects on the pipe insulation