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Author Topic: Copper head gasket (sealant?)  (Read 2941 times)

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Offline SteveW

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Copper head gasket (sealant?)
« on: April 18, 2015, 05:10:58 PM »
Putting some stuff back together after a few repairs and I ordered a copper head gasket. Nothing came with it as far as installation procedures but to me it seems it doesn't need any sealant. What say ye?
« Last Edit: April 18, 2015, 09:37:50 PM by Googly_Moogly »
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1950 CJ3A finished. 1950 CJ3A in pieces. 1947 Bantam T3-C trailer, 1946 Cushman Scooter 50 series

Offline athawk11

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Re: Cooper head gasket (sealant?)
« Reply #1 on: April 18, 2015, 05:30:29 PM »
Steve,
Opinions will vary, but I would spray it with copper gasket spray sealant.

Tim
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Offline scoutpilot

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Re: Copper head gasket (sealant?)
« Reply #2 on: April 19, 2015, 05:47:20 AM »
[size=12]X2. Spray just enough to cover it and let it tack up. And remember, there is a top and a bottom to these gaskets.[/size][/b]
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Offline Lee

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Re: Copper head gasket (sealant?)
« Reply #3 on: April 19, 2015, 09:43:06 PM »
I have installed several dry, as the manufacturer suggests with no issues.

Lee ;)
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Offline scoutpilot

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Re: Copper head gasket (sealant?)
« Reply #4 on: April 20, 2015, 04:56:28 AM »
[size=12]With these old motors...The copper gasket is designed for very high compression in motors with very, very tight tolerances. The dips, swales and gouges found on the block and head tell me the belt and suspenders approach is best.[/size][/b]
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Offline SteveW

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Re: Copper head gasket (sealant?)
« Reply #5 on: June 09, 2015, 09:02:26 PM »
Well I sprayed both sides lightly and let it tack a good long while. I made sure block and head were clean and put it all on today. 1 time around at 45 lbs torque and then final at 68 lbs torque. No slippage so my 3 studs I replaced a while back held nicely.
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1950 CJ3A finished. 1950 CJ3A in pieces. 1947 Bantam T3-C trailer, 1946 Cushman Scooter 50 series
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