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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
'89 Bobcat 743 control valve
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<blockquote data-quote="billrbg" data-source="post: 78344" data-attributes="member: 10970"><p>No mystery about the leak at the oil cooler. I reached in with just the crowfoot in my hand and could move the nut on the hard-line on the left side. Apparently it loosened up from the vibration of the hammer. I'll pull out the exhaust flex-line tomorrow to get a couple of wrenches in there and "honk it down" tight. The main relief isn't such a clear fix. Although I saw fluid gushing out from around it, it wasn't loose and the O-ring shows no signs of failure. The only thing I noted is that the back-up ring for that O-ring was installed on what I consider to be the "wrong side". The back-up was on the pressure side of the O-ring. That's the way the FSM shows it, but not the way I understand that they work. I'll probably re-install the main relief with a new O-ring on the other side and see what happens. It's not hard to get that valve out, just takes a long socket extension.</p></blockquote><p></p>
[QUOTE="billrbg, post: 78344, member: 10970"] No mystery about the leak at the oil cooler. I reached in with just the crowfoot in my hand and could move the nut on the hard-line on the left side. Apparently it loosened up from the vibration of the hammer. I'll pull out the exhaust flex-line tomorrow to get a couple of wrenches in there and "honk it down" tight. The main relief isn't such a clear fix. Although I saw fluid gushing out from around it, it wasn't loose and the O-ring shows no signs of failure. The only thing I noted is that the back-up ring for that O-ring was installed on what I consider to be the "wrong side". The back-up was on the pressure side of the O-ring. That's the way the FSM shows it, but not the way I understand that they work. I'll probably re-install the main relief with a new O-ring on the other side and see what happens. It's not hard to get that valve out, just takes a long socket extension. [/QUOTE]
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General Bobcat Skidsteer Forum
'89 Bobcat 743 control valve
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