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Valve cover gasket 440 300hp.
Posted: Tue Sep 06, 2016 8:36 pm
by martindesign
Stupid question, I need to do valve cover gaskets on my 440s. They are the old style 1969 to be exact. Any idea if I can slip them out without pulling the manifolds? It looked like I could but I only quickly glanced at it when I noticed one was sleeping a bit.
Re: Valve cover gasket 440 300hp.
Posted: Wed Sep 07, 2016 9:21 pm
by spdracer
Should be able to. A 1/4" drive 7/16" swivel socket with make this job much easier.
Re: Valve cover gasket 440 300hp.
Posted: Thu Sep 08, 2016 7:26 am
by martindesign
Check. Thank you. Wasn't sure if the lip would fit out between the manifold and the rockers.
Re: Valve cover gasket 440 300hp.
Posted: Wed Sep 14, 2016 6:48 am
by Fastjeff
Before removing them, try gently re-tightening the bolts. The gaskets relax over time and the bolts get loose.
Jeff
Re: Valve cover gasket 440 300hp.
Posted: Fri Sep 16, 2016 10:09 pm
by martindesign
They're cork, over tightening cork gaskets distorts stamped covers and will make it leak worse. Im gonna replace with a better rubber gasket. Thanks though.
Re: Valve cover gasket 440 300hp.
Posted: Fri Sep 16, 2016 10:56 pm
by Busia
Beat them with a ball peen hammer too.--Ed
Re: Valve cover gasket 440 300hp.
Posted: Sun Sep 18, 2016 9:47 pm
by Fastjeff
What he means is, turn the cover over and knock the distorted areas about the bolt holes flat with a ball peen hammer.
Jeff
Re: Valve cover gasket 440 300hp.
Posted: Fri Sep 23, 2016 1:15 pm
by martindesign
Or beat the heads with the hammer to pop the gaskets loose.
Re: Valve cover gasket 440 300hp.
Posted: Fri Sep 23, 2016 4:53 pm
by Busia
Rubber hammer to get parts loose, ball peen to reverse the dimple that forms on a sheet metal valve cover. No oil pressure on these valve covers so it doesn't take much to keep the oil in. If they leak you have a very poor seal.
And the biggest hammer you have when you give up.