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Oil Fill Cap


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Should oil fill cap be snug (sealed) or loose (to allow air to enter crankcase). When I remove cap at idle, the rpm's drop like engine is going to die, then they pick back up. when I put my hand over oil fill, it sucks my hand to opening. Always my dipstick is push out....like air is pushing it out. Is my engine screaming for air...like a pcv valve problem? Has anyone else experienced this...what was the fix?:cornfuzz:

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That doesn't sound right. They should be snug but most get worn and dry out (Rubber gasket on the underside of the cap) so they become loose. You could always call Jeff or Gary at W+L if you need a quick question answered. They know their stuff and you are right there. I couldn't tell you what the prob is though...

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