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Farmall & IHC Tractors Discussion Forum
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typical compression values on M w/Kerosene head

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Kevin Brooks

08-13-2005 10:10:17




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Does anyone have any cylinder head compression values for a good running '51 M with Kerosene head. I want to do a compression check but want to have some comparative values. I know that cylinder-to-cylinder variation (or lack thereof)is more important than actual.
Any help appreciated.




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Kevin Brooks

08-15-2005 11:19:43




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 Re: typical compression values on M w/Kerosene hea in reply to Kevin Brooks, 08-13-2005 10:10:17  
Thanks all!
Now I have something for reference. By the way, the head has number 6336 - I was told this was for Kerosene / distillate. I most likely will only burn 87 Octane gasoline, however. Hope this doesn't change anything?



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Hermit

08-14-2005 04:44:01




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 Re: typical compression values on M w/Kerosene hea in reply to Kevin Brooks, 08-13-2005 10:10:17  
According to GSS-1356, 96 psi for the standard engine and 92 psi for engines with an increased bore and flat top pistons.



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JonM

08-13-2005 13:40:17




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 Re: typical compression values on M w/Kerosene hea in reply to Kevin Brooks, 08-13-2005 10:10:17  
I had one with 4inch flat tops and 8777 cyl head, comp readings were 85 to 90, hope this helps.



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CNKS

08-13-2005 11:02:41




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 Re: typical compression values on M w/Kerosene hea in reply to Kevin Brooks, 08-13-2005 10:10:17  
Tune up info in the link says 95.



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