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(1) 2 »

1930 std 8 valve cover
#1
Not too shy to talk
Not too shy to talk

Giles van Hees
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Went adjust the valves on my 733 and found my cover coming apart and the inner piece rubbing quite a few valves. Sandwiched between the inner and outer pieces was this very thick cork.
Can anyone tell me its function? Was it there to absorb valve train noise?
Any help will be greatly appreciated.
Giles

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Posted on: 2023/10/16 11:35
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Re: 1930 std 8 valve cover
#2
Home away from home
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32model901
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I'd agree it was for noise reduction.

Some modern diesels use foam inserts to deaden noise.

https://www.cumminsforum.com/threads/tappet-covers-engine-noise.573103/

Posted on: 2023/10/22 13:08
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Re: 1930 std 8 valve cover
#3
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32model901
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Some of the 30-32 OEM Std 8 covers Ive seen don't have this cork insert.

https://www.ebay.com/itm/153472733007

Could this have been an aftermarket item?

Posted on: 2023/10/22 13:27
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Re: 1930 std 8 valve cover
#4
Not too shy to talk
Not too shy to talk

Giles van Hees
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Olson's gaskets had never heard of this either but they put me in touch with Barry Lowe at Gatsby Auto Works and he had the same thoughts. Several of his cars have the same cork in the valve cover. I will re-assemble with a new piece in place.

Posted on: 2023/10/24 7:33
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Re: 1930 std 8 valve cover
#5
Quite a regular
Quite a regular

29- 640 Club Sedan
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My 29 640 with the Big Eight has/had the same cork material. I plan replace it as well. Believed to be sound deadening material

Posted on: 2023/10/25 0:07
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Re: 1930 std 8 valve cover
#6
Not too shy to talk
Not too shy to talk

Giles van Hees
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Olson's has 1/2" cork, the hard part was getting things apart. With some gentle prying and working things came apart, I had to cut the shoulders down on both sides of the spacers , punch 1" holes in the cork and make a die to re-press it all back together. Maybe too much work, but I obsess about these kinds of things.I know the pic of the inside the spacers look a little rough but that's the picture, they turned out as nice as the outside.

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jpg  IMG_1979.JPG (554.73 KB)
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Posted on: 2023/10/26 9:07
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Re: 1930 std 8 valve cover
#7
Quite a regular
Quite a regular

29- 640 Club Sedan
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Can you show me the die you made? I need to complete the same process. Nice work! Thanks for the followup pictures.

Posted on: 2023/10/26 14:01
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Re: 1930 std 8 valve cover
#8
Not too shy to talk
Not too shy to talk

Giles van Hees
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The piece with the raised center is like a big hollow rivet tool made out of 1" round stock and the other piece shows both sides both for supporting the spacer piece while pressing. I am sure the factory stamped inside and out in one operation but I attached the inside first supporting the spacer on its heavier shoulder with the hollowed end, then put the cork in place clamped things together squeezing the cork a little so the spacer protruded on the outside, then supported it by flipping the piece over inserted in the spacer to support it while pressing the outside.ggsvh@aol.com
message me and I will give you my phone number, it's easier to talk about it.
I cut holes in the cork with a 1" leather hollow punch using the shop press, worked like a charm.

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jpg  IMG_1982.JPG (183.59 KB)
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jpg  IMG_1983.JPG (215.46 KB)
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Posted on: 2023/10/28 11:39
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Re: 1930 std 8 valve cover
#9
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Marty or Marston
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A set of Cork Borers is a nice solution for cutting holes in cork and other gasket type materials.

Posted on: 2023/10/29 5:25
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Re: 1930 std 8 valve cover
#10
Webmaster
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BigKev
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I belive Ross has one of those!

Posted on: 2023/10/29 7:57
-BigKev


1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog

1937 Packard 115-C Convertible Coupe -> Registry | Project Blog
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