Posted by Bob Roese on June 03, 2008 at 12:54:54 from (208.13.106.7):
1969 4020 diesel. Chatter noise from the hydraulic couplers when the hydraulics are idle. Noise lessens immensely when 3 pt arms are lifted. I have had the tractor to the dealer and we have replaced the pump drive couplers (don't remember if the pump drive shaft was replaced), rebuilt hyd pump and steering valve, replaced priority valve, changed filters and screen, rebuilt the brakes, and checked the pressure at the SVC. I'm out of ideas as everything works fine but the noise is driving me crazy (short drive). Thanks for listening.
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Today's Featured Article - A 1937 John Deere Unstuck - by Gary Hickman. Here is my story of how I got the pistons out of a 1937 JD B that the engine had been stuck for about 14 years: About 12 years ago my Dad gave me one of the tractors I ran as I was growing up on our farm in central Nebraska. The engine on this tractor, a 1937 John Deere "B", had been stuck for 2 years before he gave it to me. This last spring (1999) I hauled the tractor to our 2 acre lot in St. Libory Nebraska where it joined my antique machinery collection, at that time a 1929 Caterpillar T
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