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.
Never seen like before. Any one have ideas?
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.
Never seen like before. Any one have ideas?