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Message: <blockquote data-quote="EdTrefger" data-source="post: 64420" data-attributes="member: 8524"><p>oil foaming problem solved it was a high pressure problem ; the problem is with the double stage pump the front half of the pump feeds oil cooler and hydrostatic drive motors side case wear was not more than .010 but it created back pressure at port block which caused high pressure causing foaming excess one quick way to find the problem is at diagnostic coupler mine was 235 lbs my other bobcat is only 180 lbs now they are both the same and problem is gone the help from the people that are on the forum sent me looking in the right direction thank all of your time i hope this helps other members thank you eddie</p></blockquote><p></p>