Oil Pump Questions For Engine Builders

[hulbyw]

Two more questions if I may. Firstly what do current experienced engine builders do about sealing the oil pump to the case and oil pump to cover (a Gene Berg cast iron relief cover). That is, paper gaskets only or paper with sealer and if sealer, which sealer?
Secondly, can an oil pump be fitted to a case that has already been sealed and if so best method (I know, I know, but case was sealed up many months ago prior to reading on here Brian e's advice in Murts engine build thread)

[BFB]

45 views and no reply....
I use gasket and same anaerobic sealer I use on the case.
nothing wrong with changing / installing pump after the case is together, why would there be? no different than if you wanted to pull the pump to change it out or to advance or retard the cam..
you can loosen the outer case bolts near the oil pump if need be too
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[Glenn]

Paper gasket and Permatex Copper spray

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[RWK]

Also check pump O.D. should be 70mm exactly, many aftermarket ones are undersize, may need to O ring it, also use the thinnest gasket on the cover, most sealers work, stay away from silicone.
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[txoval]

I recommend the Berg o-ringed oil pump, but not using their heavy cast iron cover. I don’t like the weight and the material expansion being different than the pump housing.

Backside of pump use gasket and sealant of choice

Pump cover…no sealant

[jim martin]

something overlooked by many is the case bore for oil pump , you may be surprised . think about what it may cause
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[hulbyw]

Thanks to all for the help.Pump is installed. Didn't take too much persuading. Now on to the next challenge.