Posted by Janicholson on November 16, 2013 at 09:52:17 from (74.60.94.18):
In Reply to: another Cub question posted by charlie M on November 16, 2013 at 09:15:04:
Great question. If the tractor has been sitting for more than a year or so the valves may have pieces of rust or flakes of trash material under them. I would suggest that the engine should be pulled in a parking lot at 4-5 mph in road gear for at least 1/4 mile before condeming anything. Cubs often have difficulty building oil pressure after sitting due to the pump being in the block casting, and above the oil level. I would pressurize the oiling oiling system with a pump oil can, and a small rubber hose to connect it into the oil gallery at the filter housing (1/8" pipe plug, probably hex key) If it shows oil pressure all is well. After pulling it then check the pressure, if as bad then, it will need to have the head pulled off, and looked at for possible burnt valves and bblown head gasket. The rings may be stuck causing the 50# numbers. If the Zero psi cylinder comes back to 50 or above, I would get it started before tearing it down. Jim
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