Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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#220194 09/28/11 11:05 AM
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Beamer Offline OP
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hood Can anyone tell me the thickness of an oil filler cap gasket? Mine disintegrated and I can't find the piece I kept for that dimension. I know they are cheap to buy but I hate to pay 8 or 10 bucks shipping for a $1.50 item. Since I have lots of cork stock of all sizes, I thought I would make one but I need to know the thickness for a proper seal. Chevy's of the 40's has the inner and outer dimensions but not the thickness. Thanks. Beamer


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I'll go out and check mine in a bit. I agree that making your own is a lot smarter than buying one if you already have the cork.


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Originally Posted by Beamer
hood Can anyone tell me the thickness of an oil filler cap gasket? Mine disintegrated and I can't find the piece I kept for that dimension. I know they are cheap to buy but I hate to pay 8 or 10 bucks shipping for a $1.50 item. Since I have lots of cork stock of all sizes, I thought I would make one but I need to know the thickness for a proper seal. Chevy's of the 40's has the inner and outer dimensions but not the thickness. Thanks. Beamer
Mine was about 1/8' thick on my 38 Master but it was starting to fall apart so rather than have pieces fall down into the oil tube I scrapped it out and replaced it with a piece of rubber roofing I cut out to match and glued into the cap...It fit real good and you can feel it seat and get tight when you turn it on Good Luck....ED


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I'd have to agree with the 1/8" estimate. I pulled mine but I couldn't remove the old gasket for an accurate measurement without destroying it.


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I also agree with 1/8. I have the cork also and it tightens nicely.

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In the later years the gasket that came with the Genuine Chevrolet complete engine gasket set was made from neoprene rubber and lasted much longer than the cork


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bana2 Sorry for the delay in my thanks to everyone but I am still battling an excruciating sciatica problem in my right leg and therefore not on the computer a lot. In any case, many thanks to all the responses. They told me what I needed to know. One of these days I will come across a small piece of cork (part of the old gasket) wrapped in a piece of paper and wonder where it came from but by then, I won't need it. Beamer


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I also had a major sciatica problem last year. Finally got in to see a Neurosurgeon and it was a good thing that I did. He did microscopic surgery and when I recovered from the operation, later that day I walked out of the surgery center and headed home pain free and my back has been 100% ever since. Actually, my back hasn't felt this good in about 10 or 12 years thanks to the surgery.

laugh wink beer2


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Same here had a discectomy (spelling)been great ever since


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