Posted by Logging1120 on October 31, 2019 at 07:18:02 from (198.84.14.10):
I have a '69 JD 1120, which is the equivalent of the American 1630, and closely related to the 1020. 51HP Diesel. 3 Cylinder.
This machine has run fine for many years without too many issues. Till now...While running at 2400 RPM with a 60" rototiller, the engine sputtered out. Engine would not turn over.
I've since resolved a few likely issues, (starter rebuilt, solenoid, rebuilt injector pump (roto-diesel), battery and leads). Replaced all filters, and fluids. Have removed oil pan, and cylinder head cover, which didn't reveal anything obviously missing, bent, or broken. No filings, or mixed fluids in any oil or fuel.
Pulled out the radiator, for the third time, and disconnected the pump drive. Hyd pump seems fine, but shaft on engine side is again stuck.
Two weeks ago, was able to move the pump shaft with large pipe wrench, at which time was able to turn over engine, and did get it going a few times before it QUICKLY shut down. Not a fuel starvation shutdown, much faster. No notable weird noises. After a few times getting it going, it has now seemed be seized again.
Any ideas before the top (and maybe bottom) ends get pulled out?
I am speculating that there might be a broken rod.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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