Posted by 10 Bluebird on December 17, 2012 at 12:43:03 from (204.16.161.12):
My tractor threw a rod and I had to get another block. I had a 172 diesel block. The block I got to replace it was Conn6015J. Obviously this was a gas block because when I went to mount my balance gear to mate up with my crank one hole was not bore deep enough and it didn't have a hole on the other side period. So I took it to the machine shop and they bored and tapped it for me.
I thought my problems were over but when I went to put the head on the bolts do not work, mu block is 5/16s and my old head bolts are 7/16s and the holes that are in the block line up but my head has other holes that are not in the block. Please advise on what I should at this point. If I bore the existing holes from 5/16s to 7/16s and bore additional holes so the head will work, will my rocker arm assembly work valves work right/ etc.?
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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