JONSKI

Any thoughts? I think the stuff would work great for things like the UIM, TB, and the turbo compressor ports.

SVT Squasher

Im not sure about neoprene, but if your looking for a better seal I use the the standard gaskets and then but a skim coat of copper silicon. The copper expands when it heats up tightning the seal and with it being silicon it gits in all the little cracks. Some people say the exspantion and contraction will cause leaks but I have never that happen yet and I have built alot of motors (Rotories are new to me though).

JONSKI

I don't like using gasket sealer or liquid gasket, I hate cleaning them up when I get back into the engine, and the hardening stuff seems to strip the rubber coating from the metal OEM gaskets. My biggest concern with neoprene is that just like the OEM neoprene vacuum tubing, it will harden under prolonged exposure to oil and high temperatures. However, the other day, I noticed that this stuff was being used in HUGE sheets as ROOFING MATERIAL for trailers here at the schools where I'm installing awnings. I figure if it can hold up to Florida sunshine and its UV-deterioration then it should work pretty well in an engine bay. Besides, most of the gasket will be sealed from air and oil so it will take a long time (a few years possibly) for it to harden completely through. I'll post a picture of a swatch of the material that I picked up so everyone can see what I mean. It's about 1/32 inches thick and very elastic and should compress well between the piping. I was never good at arts & crafts, but I cut a compressor port gasket, be sure tell me what you think.

I can't post the pics now, because I'm at the Canvas shop working on my car and the disk drive is appearently broken (go figure). When I get home to my computer I will post the pics from my Mavica.

SVT Squasher

First of all I dont think the Florida sungets nearly as hot as the motor, and UV protectant is not the same as heat resistant. I dont know I would prob try it on a lawn mower or some other type of motor before putting on your car.
I dont think silicon is that bad to clean up. I look at it as insurance policy your gona pay something sooner or later the cost is not that much for the comfort of knowing you seald it the first time. Besides how often are you pulling your motor apart.

JONSKI

Good points, but I'm still really tempted to try it.

I'm not taking the motor apart, I don't have the tools for rebuilding and such. I meant that I work in engine BAY. I always forget to type words. I must type slower than I think. Anyways... If you include the time I'm away from my car, I work on it about four times a year. Just counting the time I'm with the car, I work on it nearly every four weeks.

DaleClark

iTrader: (55)

Big question is - what function are you using it as a gasket for? Sealing water? Air? Oil? Exhaust?

I really don't see any reason to reinvent the wheel here - Mazda's gaskets work quite well. I use grey RTV on oil and water seals - that stuff holds incredibly well, and has a very good tensile strength. Use NO sealant on exhaust gaskets, and I sometimes use a sticky, brushable sealant on paper intake gaskets just to stick them in place on a manifold - that makes them stay put for future R&R.

The grey RTV is also quite easy to clean up later, and isn't very stinky .

Dale

JONSKI

I'm not trying to re-invent, I just don't like buying new gaskets. If I cut my own gaskets, then I could also install fresh ones every time took one off.