Posted by tractorsam on September 12, 2017 at 15:08:34 from (142.169.78.229):
I recently overhauled a 3 cylinder perkins in a Massey Ferguson badged Landini for a neighbor. It had about 7500hrs and the oil pump gears came apart and split the pump and it spun the #3 rod bearing. I tore it down and had a reputable machine shop do the head, check/repair the rods, replace the liners, repair the crank. I reassembled (parts supplied by the machine shop) and my neighbor put it back in the tractor. I went over and assisted with the first start and retorqued the head after it had warmed up.
After he'd run it for about 10 hours I had a call that it was low on power and smoking. It broke the rocker arm on the #1 intake valve. I found the machine shop had installed the new guides 0.100" too high in the head and the valve caps were contacting them (also 2 were in upside down). I removed the head and they did it again. I reinstalled the head and we started it up, did a retorque but we had a fuel leak and some other issues so we didn't run it long. A few days later he fixed the other issues and it is apparently now leaking coolant from one of the studs that holds the #1 injector. Has anyone run into one of these heads cracking into the injector stud hole before or have a reason why? Thanks, Sam
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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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