TX, I just reread your original post and it is very clear as to your description and there is no misunderstanding on my part. You have obviously not solved the problem so for your own satisfaction why do you not tee the gage into the top port and see if you can replicate the problem and watch the resulting pressures on the gage? I would be interested in the result. Owens excellent explanation of why it would take a certain pressure to raise and an increase in pressure as the boom settles is right on the money. BTW Older Case backhoe steering cylinders use a ORING that can wear flat over years and cause severe steering wheel creep as it is a fully hydrostatic system, Oftimes you can jerk the steering wheel and it will push the oring enough to get a good seal and the creep will stop so it is possible in that system to have an intermittent internal piston leak but sometimes work normally. mEl
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Today's Featured Article - History of the Nuffield Tractor: Part 2 - by Anthony West. In February 1953 production of the ETC T.V.O engine started, ready for the March 1953 press announcements. The new TVO engine had a number of improvements which resulted in a 10 per cent more power (43bhp as against 38 bhp on the earlier engine) and 10 per cent more fuel economy. Some of the improvements are listed below: Redesigned combustion chamber, improved spark plugs and positioning, plug size 14mm(earlier size 18mm).
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