Posted by Texasmark on April 10, 2023 at 11:49:49 from (63.246.62.168):
In Reply to: MF 135 posted by Midway on April 08, 2023 at 15:39:40:
Before I overhauled it, I had a JD 4020 with a goodly amount of blowby.....the overhaul had to do with the cylinder weep holes leaking either coolant or oil....seems that the last overhauler, a prior owner either didn't pay attention to color and position of the cylinder Orings upon removal or whatever in that he got them reversed and were incompatible with the adjacent fluid.
Back to the story: I drilled and tapped a 1/2 NPT port in the intake manifold and plumbed in a length of garden hose from the crankcase vent pipe.....no more stink in the operator's station.
Two things come to mind on your usage: Sludge and rust. If the oil isn't circulated and heated to keep solids in suspension and thin enough to get to tight toleranced surfaces expect problems and newly changed oil looking like old oil.
If you don't heat the tractor to drive out accumulated moisture, expect rust and moisture contamination of lubricated surfaces.
Even here in N. Tx. I run all my engines up to temperature for awhile every couple of moths if not used on a regular basis.
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