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Farmall Cub • View topic - New rebuild, have questions..

New rebuild, have questions..

Fri Jan 25, 2013 6:28 pm

Just picked up the motor today. New pistons, rings, bearings, the whole nine yards. Want to test run it on the bench before putting it back on the tractor. Will ithurtthe hydraulic pump to run it without being hooked up. To the reservoir? Also, any recommendations on setting the. Engine unto restrung it on the bench? Recommendations. On break i, etc?thanks.....

Re: New rebuild, have questions..

Fri Jan 25, 2013 6:53 pm

Remove the pump and cover the access hole with a plate. Don't run it without hyd oil in the system. Why not put the engine back in the tractor?

Re: New rebuild, have questions..

Fri Jan 25, 2013 6:56 pm

Tractor is disassembled for paint right now

Re: New rebuild, have questions..

Fri Jan 25, 2013 7:50 pm

it can be run for short periods of time with the pump connected. Just squirt some oil in the inlet of the pump . I have done it many times. The pump keeps a little oil inside because it cant pump out without oil to replace. Dont forget to prime the engine oil pump before start up.

Re: New rebuild, have questions..

Fri Jan 25, 2013 8:19 pm

don't run it over a few seconds without coolant !!!!!

Re: New rebuild, have questions..

Fri Jan 25, 2013 8:40 pm

Jdbfish wrote:On break i, etc?thanks.....


Prime the oil pump like Clark mentioned, but also retorque the cylinder head bolts after a few hours of engine run time - 45 lbs.

While you have it broken down, check the oil level on the fan assembly.

Re: New rebuild, have questions..

Sat Jan 26, 2013 1:22 pm

I would wait it out until the paint job is complete. Given the coolant and oil block off plate, it's probably not worth the effort just to hear it run. Just think of the bitter sweet moment of hearing it run and looking good at the same time.