Does the oil pump require a gasket?
06-11-2013, 05:25 PM
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Does the oil pump require a gasket?
I ordered a melling pump for my 454
Mag and it did not come with a gasket. Did some reading and though they sell gaskets for them I read they should not be used. So I checked the witness marks on the block and oem pump and it does not look like a gasket was installed. So gasket or no gasket? Thanks!!!
Mag and it did not come with a gasket. Did some reading and though they sell gaskets for them I read they should not be used. So I checked the witness marks on the block and oem pump and it does not look like a gasket was installed. So gasket or no gasket? Thanks!!!
06-11-2013, 05:33 PM
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No gasket is used, but there should be an "O" ring between the pump and the rear main cap.
Last edited by Vinny P; 06-11-2013 at 05:39 PM.
06-11-2013, 05:45 PM
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I did a short block rebuild at the local machine shop and the URL you have me is not coming up. So I assume that the o-ring is installed and the mating surface between the pump and motor does not need an o-ring?
06-11-2013, 05:56 PM
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http://www.mercruiserparts.com/Show_...sp?dnbr=804807 99&ivar=images/COMMON/20119.png&inbr=4854&bnbr=170&bdesc=Cylinder+Block+ and+Camshaft
Try this link...
Try this link...
06-11-2013, 07:20 PM
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So I can't even find a gasket number - just some odds and ends gaskets available on the internet. I looked and there is not any groove for an o-ring so that does not seem like it fits my application. Anyone have any additional advice on this??
