Re: super a engine bearings

Posted by scott#2 on December 29, 2005 at 16:43:25 from (141.156.20.215):

In Reply to: Re: super a engine bearings posted by scott#2 on December 29, 2005 at 16:35:34:

Sorry, forgot to paste. I really didnt want to go there but I just couldn't help myself. The pump is now within spec at all locations, (gear backlash, right at the limit)nice having a machine shop around. Milled the body flange, surface ground the cover plate, measured all tolerances .0035 gear to cover clearance, .005" running clearance (gear to housing side) This should be a real good test. At least if I have low pressure on this SA, I know it wont be the pump. Took me just about as long to find the $$#@$$#@&* cotter pin for the screen. After tearing the place apart, I finally found it stuck to one of the magnetic indicator bases...figures. Thanks for the numbers. Oh by the way, those 2 gaskets are of different thickness.
scott#2

Gear backlash is another thing to consider. Mine was at the limit so I let it go believing that most pressure is created through small clearance between the gear faces and the cover plate. The less the clearance, the more pressure the gears can create to pump the oil.

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