Posted by charles todd on August 03, 2008 at 21:22:01 from (205.242.95.130):
In Reply to: Rebuild or replace? posted by wallacedw on August 03, 2008 at 13:47:19:
I was chasing dragons with a plastic sword for a while on my Farmall 504. I installed a loader and did not have near the lifting power the specs stated. Checked my hydraulic PSI at the remotes and it was lower than what the relief is set at. I rebuilt the valves, installed a new pump, and changed the oil and filters. The only thing that happened was I got a faster cycle time on the loader (changed the 12GPM to a 17GPM). It still would not lift the front tires off the ground. Found the pilot relief valve for the remote valves and it was stuck open. Cleaned it up and reinstalled. Still the same issue. Removed it again and found a hardened o-ring that seals it between ports (the o-ring in the manifold body, not the relief). This o-ring had worn a groove in the relief valve, got a new one on the way. I am 100% confident this was my problem. Should have looked there 1st!
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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