Question, does the pressure decrease if you loosen the adjustment on spool or does it just stay the same until you loosen it way up. If it lowers as you turn valve out of coupler, I think you are not getting full pull on valve. Those linkages were poor on the 656 and I have repositoned a couple to get more lift on valve. Other wise, you could put in a higher pressure valve. I am not sure if it is a direct exchange of valve like the larger tractors or not. You know, initially a 706 etc was 185 psi and later the larger tractors were increased to 235 psi and I have installed that valve in a lot of older tractors. Requires new valve, nut with seal in it is different and the spacer changes to a thick washer under adjustment nut. I have never seen a pto pump go bad either but if it is bad your low idle pressure would be zilt.
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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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