Which type of sealants do you guys use on paper gaskets? Here are some I have used back in the day. Permatex says never use rtv on paper gaskets.
It depends on what you are sealing,,,fluid wise. Both of your examples are very good to use. I have also used rtv a great deal as well,,,,it always worked great too. Tommy
I've always had real good luck with Indian Head Shellac but just to hold the gasket in place during ***embly. When I was a kid and first learning this stuff, my boss used to say "People confuse gasket sealant with form-a-gasket all the time. Gaskets don't need any help. If they do, you need machine work." I've found that, generally, RTV is only good to use if there is no gasket available. It's also highly effective in ******* off the next guy that works on it.
You really want to piss them off use yellow death. Better known as 3M weather strip. I used to work on a dealership and the guy in the next bay to me used it on all his gaskets. He said he would never have to work on it again so he didn't care.
Back in the 50s and 60s, I used to soak the hard cardboard gaskets for the cooling system in silicone water repellent. They never failed me. In the last 5 years, I have been using the blue Permatex sealant with excellent results. For exhaust gaskets, I have had excellent results with the copper high temp sealant. Bob
In the old manuals, they would sometimes specify "sealant" on some gaskets. Timing cover for example, around coolant p***ages. What were they using, whatever it was, it wasn't RTV. Something like Indian Head Shellac?
I used Hylomar Blue to seal the heads up on my Boss 429 engine. It's a fantastic product and the best thing is its non-hardening, oil, solvent, resistant. https://www.roverparts.com/Parts/901
Gotta be careful with sealant on thin paper gaskets. Tightening the parts together squeezes out the sealer and sometimes the gasket splits and squeezes out with the sealer. I like spray coppercoat on the real thin ones and let it set up before tightening. Permatex aviation brown camel snot on thicker water related gaskets.
X2 I used that s#$t on all paper and cork gaskets ( taught that in the 60,s when playing with briggs 5 hp Flathead) Makes taking it apart easier! Pete
Permatex #2 was the standard when I started, a bit messy. 3M yellow also known as "monkey snot" used as thread locker as well. Very effective becomes too effective when it comes time to take back apart again and clean up. When the RTV "blue gorilla" came along it became the next "reach for" until we realized too much was not just right when it squeezed to the inside and little globs liked to find the oil arteries.... I've used spray Hi Tack one one side of thin gaskets, let it dry, and and put together with a film of light grease or heavy oil on the other side to let the part with gasket slide around a bit for final alignment without tearing the gasket. Used heavy grease on both sides of thicker gaskets for the same reason. Biggest thing is to put anything really sticky on the part to be removed later side, makes clean up the next time much easier, especially where studs are involved. Ed
Permatex non hardening on most, engine oil rubbed into n.o.s gaskets to soften them and I once used bearing grease on a re-used head gasket. I just wanted to get the engine running to make it easier to move the vehicle around. Three years and 20,000 miles later, used as a tow car, it was still working. Rings gave out before the greased gasket did.
I've heard about Hylomar for many years, what kind of areas has anyone used it with what kind of results?
Like Iv'e mentioned on the receiver water / oil grooves on Boss 429 heads. I l also used it in the timing cover and the thermostat housing. The old Boss hasn't leaked a drop. Good stuff.
Neverseize. Read once to put lip balm on Holley carb gaskets to keep them from sticking when doing jet changes at the track. Like Neverseize better but that stuff seems to end up everywhere.
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