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4430 problem
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partimer
Posted 5/8/2015 09:27 (#4558420)
Subject: 4430 problem


Northwest Iowa
I have a 1976 4430 that I have owned since 1991. Replaced engine last winter with 466 combine engine (original 9823 hrs). Nice upgrade. For the last few years I have struggled with the oil pressure gauge. Not a big deal, just nagging. I installed a mechanical gauge so I have that as a backup. When cold, gauge in the cluster will read upper end of normal. As it warms, the gauge will drop down into the red and stay there. Mech gauge reads normal. I have replaced the gauge and the sending unit with little/no change. If I wiggle the plug that goes into the cluster, the gauge will peg into the extreme high. Tried a separate ground from the back of the gauge cluster to frame, too. No other gauges affected. Any ideas? PS, put LED lights on all around-Why did I wait so long to do that?
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monse
Posted 5/8/2015 09:38 (#4558437 - in reply to #4558420)
Subject: RE: 4430 problem


NE ND
Any chance the 4430 gauge does not match the pressure range of the new engine or there is a difference between the combine sending unit and original? Could you either replace gauge with combine one or sending unit with tractor one? Any chance there may have been a resistance wire on one and not the other?
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marlinpain
Posted 5/8/2015 11:54 (#4558602 - in reply to #4558437)
Subject: RE: 4430 problem


45 miles south spingfield il.
+ 1 have replacement motor in 8430 gauge reads way off
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partimer
Posted 5/8/2015 11:54 (#4558603 - in reply to #4558437)
Subject: RE: 4430 problem


Northwest Iowa
I wasn't clear, but it had been doing it prior to engine swap already. Put the sending unit from old engine to newer. The sender is only about 2years old and the gauge is about 1. Thanks for input.
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pirlbeck
Posted 5/8/2015 12:41 (#4558654 - in reply to #4558420)
Subject: RE: 4430 problem


West Central Iowa
I have seen a lot of problems with the JD oil pressure senders for 30 & 40 series tractors. Some times they do not work correctly right out of the box, and if they do work OK when new, they still don't seem to last over a couple of years. I replaced a 2 year old one the other day on a customer's 4630 because the gauge didn't move out of the red zone, well the new one read OK, but the gauge was very jumpy. I tested the oil pressure with a mechanical gauge before I replaced the sender and it tested 25 to 60 PSI, so the oil pressure was fine. Welcome to the "NEW" JD.........where you get to pay a premium price for foreign built, inferior junk.
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Hay Hud Ohio
Posted 5/8/2015 19:53 (#4559131 - in reply to #4558420)
Subject: RE: 4430 problem



SW Ohio
we have two 4430's one cab and one not and both of them the gauge cluster is hit and miss, mostly miss. i have tried cleaning the contacts and the board and all connections but that is what the problem is, poor contacts, affects all the gauges, not just EOP.
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PatCMO
Posted 5/9/2015 00:41 (#4559593 - in reply to #4558420)
Subject: RE: 4430 problem


Pilot Grove, Missouri
I know you were talking about the oil pressure gauge, but the voltage gauge on my 4430 has been messed up for years. It seems to read about right with just the key on, but as soon as the engine is started and it starts charging the gauge is pegged. Charging voltage is normal, so I just run it. I think there were a lot of problems with gauges on these tractors. Patrick
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