Posted by fairchm on January 14, 2013 at 13:26:53 from (18.104.22.168):
I have about 10 hours on my 930 c/k after a complete engine rebuild. All has been fine until I recently noticed that my oil pressure has started fluctuating. Runs about 40psi, then drops to 20 and appears to randomly swing back and forth.
I do have some additional potentially useful information.
It has recently dropped below freezing for the first time since I owned the tractor. The oil appears to be clean and free of water. I"ve changed the oil and filter once since the rebuild (15W-40).
A new oil pump was not available during the rebuild, so I selected a lightly used unit. Cleaned it , checked clearances.
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