Re: H engine experts..need your help

Posted by riverbend on March 16, 2006 at 18:27:22 from (208.160.33.240):

In Reply to: H engine experts..need your help posted by sgtbull on March 16, 2006 at 11:06:07:

1,2. I think that you have found the problem.

3. get new sleeves and domed pistions. I don't think that there is much price difference. A later model or gas head will boost the compression (power) much more than the domed pistons (4-5 X). A higher lift cam (regrind, SH, 300, etc.) makes better use of the increased compression. Don't forget to have the lifters refaced.

4. It looks like IH made the head thicker between the top and the top of the combustion chamber to increase the compression. It would seem that milling the head would be easier, but they did not do that.

So other than that, what is causing you trouble ? I think that one thing to remember is that your motor is 65 years old and has probably worked most of it's life. It made have been repaired in a 'make do' fashion once that tractor was 40 or 50 years old, thinking that it would not last much longer. You will have to decide how you would like it to turn out and fix or replace everything until it is there.

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