Gasket Sealer - Yes or No, and What Kind?

Tom Bowman · Jun 21, 2013

Starting to put things back together on the TO-20, and wanted to know about what gasket sealer, if any, to use for:

1. Head Gasket (It looks like "Copper-Coat" is preferred for head gaskets, even though the 1950 Shop Manual says to use grease. I have a Fel-Pro head gasket.)

2. Manifold Gasket (Fel-Pro.)

3. Valve Cover Gasket (Again, Fel-Pro.)

4. Oil Pan Gasket (Don"t have that gasket yet. O"Reilly"s priced a Fel-Pro at $19.99, but aftermarkets are 5-6 bucks - is it worth the difference?)

5. Carb-to-Manifold Gasket (GB in MT rebuilt this carb, and he says to use nothing - I"m purdy dang sure he"s right!)

6. Water Pump Outlet-to-Cylinder Head (Thin paper gasket.)

7. PTO Shaft Cover Gasket (REALLY thin paper gasket.)

Thanks.

Jason S. · Jun 21, 2013

I use copper coat for the head gaskets. The manifold gasket kind of depends, If you see any pitting on the head or the manifold flange then yes I would use some. Just a thin smear and I mean thin smear of either high temp red or copper. I always glue the valve cover gasket to the valve cover so when you remove the valve cover to adjust the valves the gasket stays with the cover which I usually use weatherstrip adhesive for that but you could use silicone instead. The rest of the gaskets shouldn"t need anything but sometimes I use Indian head shellac to hold water pump gaskets and oil pan gaskets in place. I apply it on one side only.

miner09 · Jun 21, 2013

Head gasket I use aluminum paint, spray 1 coat and let dry before 2nd coat, let dry before installing. Water pump I use #2 peratex next to pump housing. Valve cover permatex on cover only so you can remove if needed.Pan side only if pan is not pitted. Both sides is OK with #2 since it doesn't set up hard as the #3 does.PTO permatex. Just gasket for carb,intake.

Gasket Sealer - Yes or No, and What Kind?

Tom Bowman

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Jason S.

Well-known Member

miner09

Well-known Member

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