Gaskets

[psimet]

How do you all install your gaskets? Dry? With silicone? With grease?

Transmission to clutch housing
Transmission tower to transmission
Flywheel housing to clutch housing

Valve cover on engine (engine builder says grease on that one)
Timing covers on engine

I used silicone on the u-joint and steering box gaskets but just looking to see what people do generally.

[Y-Blockhead]

Not a fan of silicone, I use mostly just grease. I do use "The Right Stuff" in certain situations sparingly.

[Gary WA]

I use Indian Shellac from auto parts supplier.

[JayJay]

On most paper and cork gaskets I put a very thin coating of Hylomar Blue on each side of the gasket. Hylomar Blue is a non-hardening silicone based gasket sealer. I don’t use it anywhere it might contact gasoline, for example carb to manifold (I use copper gaskets there anyhow, but there are paper gaskets available).

Flywheel housing to clutch housing there should be minimal oil anyhow, so dry.

[Richard Knight]

I find the "right stuff" is the right stuff for a lot of gaskets!

[J Franklin]

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I usually install dry. On my T were covers need to come off often I use silicone on one side, and grease on the other, so the gasket may be reused many times.

[nkaminar]

I recently discovered Right Stuff gasket sealer and it solved a persistent oil leaking problem. I used it on both sides of a paper gasket. Where gasoline is involved I use Permatex Form-A-Gasket #2. They have many sealants and other products on their website: https://www.permatex.com/. They make some sealants that are designed for easy disassembly. I have not tried those.

[Bob-A]

I use a permatex liquid gasket sealer that I thin some with denatured alcohol. A trick I learned from an old Harley mechanic. In/exhaust gaskets
I use copper coat.


Bob-A


"Skirts are for Women not Car Fenders"

[ThirstyThirty]

I have always said, "engine building, engine repairs... part tech, part craftsmanship... and artwork, too!"

interesting to read these numerous options, choices to seal gaskets. shellack, a new one for me!

[Big hammer]

I just used Permatex high tack sealer on the cork oil pan gasket to keep it stuck to the pan and a bit of grease on the engine side. I want the gasket to stay with the covers and not stick to the engine side, it’s much easier to clean old gaskets off of parts removed than scraping off the engine !

[David in San Antonio]

Fun fact: Shellac is made from the shells of beetles. Try working that into a conversation in the next week or so.

[JayJay]

Originally Posted by David in San Antonio

Fun fact: Shellac is made from the shells of beetles. Try working that into a conversation in the next week or so.

Also - shellac is best dissolved in denatured alcohol, not the usual petroleum-based solvents we typically use. Available at hardware stores, but don’t drink it, it has been spiked with methanol, which turns to formaldehyde in your eyeballs. Not a good thing.

[Wick]

I've used oil on cork and paper gaskets for 50 years, My grandpa (1902) insisted on doing it this way so you could reuse a gasket. A thick paper bag or roofing felt made a good gasket also.

[ThirstyThirty]

Originally Posted by JayJay

Also - shellac is best dissolved in denatured alcohol, not the usual petroleum-based solvents we typically use. Available at hardware stores, but don’t drink it, it has been spiked with methanol, which turns to formaldehyde in your eyeballs. Not a good thing.

[old31]

Ok, so what i got out of reading this thread.

1: shellac comes from the shells of beetles.

Your a bunch of beetle killers. The beatles where the best thing to invade this country.

2: your eyeballs will turn to formaldehyde.

And by the way for years I have replaced many paper gaskets with the right stuff. I spray copper head gaskets with copper coat.

[Ruth]

Actually shellac is made from a resin secreted by the female lac bug. shellac - lac.

[TomInCologne]

which is the origin of the word ‚lacquer‘ or ‚Lack‘ in german. From the hindu word for those beetles, actually lice.

[Y-Blockhead]

Dang! We be learnin' some shit today!!

[ModelA29]

Glue cork gasket to cover and grease other side when installing - reusable several times that way. I'd probably work with paper gaskets too. I wouldn't use silicone - too often I've opened up engines and seen gobs of silicone floating around from using too much. Those could easily plug up or restrict some of the splash oil passages.
Hint glue the gasket to the removable part that's easiest work on the bench with.

[nkaminar]

Permitex makes gasket sealers that are designed for easy disassembly and cleanup, see promotional video at: https://youtu.be/Bd7YV6QHVaU.

Modern engines use gasket sealers that are applied using a robot. The amount and location is controlled precisely. No gasket is used, just the sealer.