Posted by johnald on July 05, 2014 at 16:29:57 from (74.240.136.78):
so the other day while I was hauling manure with my farmall 130 I stopped for a second to do something and when I started moving again the engine started making a significant knock. I immediately parked it and shut it down. Pulled the head off and found that one of the throttle plate screw heads had sheared off and made it into the #2 cylinder. No major damage done, a few marks but no major scratches or dents. Changed rings and bearings while I had it open and when I got it put back together the head gasket leaked coolant pretty bad. Took it back apart and tried a different gasket, same thing. Took it apart again and checked for flatness on the block and head and the only major thing I notice is that the cylinder sleeves stick up slightly above the block. I put the straightest edge I could find on it and can't really notice any gaps but I question how perfectly flat my straight edge is.
My questions are these:
1. How does the head of a bolt just shear off inside a carburetor?
2. I've never overheated the engine or had any trouble before the screw made it knock so how could my head warp?
3. Why would the sleeves be pushed up like that?
4. Should I quit guessing and just take it into a machine shop? I need this tractor running about 4 days ago and am trying to avoid a major disassembly. Any help or guidance is greatly appreciated.
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