Posted by Carl Schwab on December 30, 2007 at 19:52:17 from (205.142.19.92):
I have an old Gresen PTO hydraulic pump that I bought at an auction. When ai Went to use it I found that the input seal leaked. I too the number to a local bearing shop and they crossed it to a new number, however, the new seal is only about 3/16 thick whil the old one was more like 5/16. The new seal leaks pretty bad. The shaft looked OK when we put the new seal in. Then new seal looks like a grease seal from a wheel bearing, while the old one had metal on both sides. DOes anyone know if there is a certain type o seal for hydraulic pumps, or the pressure (I"m not really sure how much pressure is on the output shaft of a gear pump. The old seal is a CR1501K210 It has a 1 inch shaft and a 1.5" bore.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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