Let's Talk Valve Cover Grommets
#1
Let's Talk Valve Cover Grommets
The area around the PVC valve of my 350 HO Deluxe has always been a bit oily. Recently, I decided the rubber had become old and hard and time had come to replace. With a quick look on line, I discovered, to my amazement, that grommets designed for aluminum valve covers have a narrower "groove width" than those designed for steel valve covers (1/8 vs. 1/4 or thereabouts). I also discovered that my 3/4" PVC valve was floating around in a grommet with a 1" I.D. (Probably the biggest source of the oil.) Imagine then how snugly the correct grommet fit in the valve cover and how snugly the PVC valve fit in a grommet with the correct I.D. The original grommets were in place from the factory, so umm. The correct grommet with a 1" I.D. to fit the breather tube is next. The O.D. of these grommets, BTW, is 1.25". Livin' and learnin'.
JamesC
JamesC
Last edited by JamesC; 08-28-2021 at 04:05 PM. Reason: A Thought
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T.L. (08-28-2021)
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Re: Let's Talk Valve Cover Grommets
Cast aluminum cover gets a thin groove, and stamped steel get a wide one? That would not have been my guess.
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