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 - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
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