Re: Farmall H Low oil pressure

Posted by Mike ISW on April 20, 2004 at 15:45:45 from (152.163.252.227):

In Reply to: Farmall H Low oil pressure posted by Mark in Mi on April 20, 2004 at 05:21:22:

First of all you need to find out if your oil pressure gauge is reading correctly. This is done by disconnecting present gauge and installing another (known good) oil pressure gauge/hose assembly. Then work tractor as normal and get cold and hot readings and compare with readings you mentioned. Th oil pump on a "H" a piece of cake to change out. Albiet messy and you tend to get dripped on alot. A few things to look for are as follows: gear backlash and cover clearance to gears. There is a VERY thin gasket on that cover. You should also clean pick-up screen and check for obstructions in pick-up tube. You will also need to check relief valve spring and ball. I do not recommend but have heard of guys stretching this spring slightly for a bit more pressure. Again I have not tried that and do not recommend. From there you need to check rods,mains and cam bearing clearances. HTH, Mike Let us know how you come out.

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