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Re: Head Gaskets, coolant flow or no-flow
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The gaskets were different in bore size for the smaller vs larger CID -- approx 4.120 vs 4.255 but doesn't appear to be different in water passages.
Posted on: 2013/5/23 17:58
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Howard
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Re: Head Gaskets, coolant flow or no-flow
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The shim gasket was normally part of export equipment, lowering compression ratio for destinations where suitably high octane gasoline was not readily available. There was also an extra thick gasket available for the in-line 8s for the same purpose.
Posted on: 2013/5/23 22:30
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Re: Head Gaskets, coolant flow or no-flow
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Home away from home
 
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I think this posting raises some interesting questions: Steel shim with embossed sealing and composite construction gaskets; and open and blocked water passages. Did not know the V-8s used a composite type head gaskets. I wonder how this all relates to Hank's problems?
(o{}o)
Posted on: 2013/5/24 10:36
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We move toward
And make happen What occupies our mind... (W. Scherer) |
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Re: Head Gaskets, coolant flow or no-flow
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Did not know the V-8s used a composite type head gaskets
Neither did I.
Posted on: 2013/5/24 11:04
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Re: Head Gaskets, coolant flow or no-flow
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Forum Ambassador
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later kits started coming with composite...and the metal seems to be harder to find now.
Posted on: 2013/5/24 11:36
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1937 Packard 138-CD Deluxe Touring Limousine
Maroon/Black 1090-1021 [url=https://packardinfo.com/xoops/html/modules/registry/View.php?ID=232]1955 Packard |
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Re: Head Gaskets, coolant flow or no-flow
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I haven't seen any composite V8 gaskets. All those I have are just embossed steel.
The shim part is interesting. I always thought anything besides a gasket was a bad idea -- let alone two as it appears they did for 56 -- or is that only with the composite gaskets. I remember a discussion from a couple of years ago and using two headgaskets to lower the compression was definitely not a popular idea. Am surprised a shim is any different.
Posted on: 2013/5/24 11:39
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Howard
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Re: Head Gaskets, coolant flow or no-flow
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Home away from home
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I have the head shim kit, bought from Packard Farm back in the 80s. never even opened the box.
question,, what seals better. steel or other,, I know Toyota uses fiber head gaskets; I would think after awhile coolant would attack the fiber . but the p 12 uses fiber headgaskets then you would think easier to warp a head?.
Posted on: 2013/5/24 12:41
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Riki
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Re: Head Gaskets, coolant flow or no-flow
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I've often wondered, did the steel (compression lowering) steel shim require a conventional embossed steel headgasket on each side of it? Thus 2 shims plates and 4 headgaskets per engine?
Posted on: 2013/5/24 13:21
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Re: Head Gaskets, coolant flow or no-flow
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Home away from home
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OD,
I will hunt down the box, since there is a question,, I can't remember what he said,,,anyone know the owners of the EX Packard Farm?,,think he told me how it goes.. heck if I can remember..
Posted on: 2013/5/24 13:40
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Riki
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