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#1
06-25-2026, 08:29 PM
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Oil pump gasket?
In the past I've used the paper gaskets that come in the Fel Pro gasket sets, or the gasket that comes with the Melling oil pumps. I build an engine about once every 5 to 10 years so it's not like I really have a track record on what is the best approach. Is it better to use any particular paper gasket, a copper gasket or just go with some RTV around the edges of the sealing surface of the pump without a gasket? Thanks
Old Joe
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68 Firebird Convertible 68 GTO Clone (Tempest) Wagon |
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#2
06-25-2026, 08:43 PM
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The thin paper gaskets are just fine if you have one. If not, a very thin skim of anerobic sealer can be used. Do not use RTV in this application. RTV is not recommended between 2 machined surfaces. It depends on moisture to cure. You end up with an outside bead that can break off and get into things in the engine and the area you actually wanted to seal between the pump and block never cures.
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#3
06-26-2026, 04:10 PM
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My last build I made on from some brass .015 shim stock. Did not want to use the paper one. Used it for the template.
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#4
06-27-2026, 06:59 AM
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The super-thin gasket is my preference. No RTV, no paint or primer.
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#5
06-27-2026, 10:22 AM
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I had a slight issues with one of the slightly thicker black paper/fiber ones. On tear down it was starting to flake off around the pump base like the pump edges were cutting it.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune [email protected] 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs 1964 Corvette Coupe 327 4 speed |
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#6
06-27-2026, 01:56 PM
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I have made them out of foil type baking pans with a pair of scissors and and the
needed size gasket punch. Even if you do not have a punch set a Xacto knife works and in 5 minutes and you’re done!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! Last edited by steve25; 06-27-2026 at 02:18 PM. |
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