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753 drives
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<blockquote data-quote="Old753" data-source="post: 103294" data-attributes="member: 16234"><p>Just an update on this so far, keep in mind the my LH motor was the one playing up especially in reverse. I removed both the drive motors with the intention of swapping LH to RH and RH to LH and therefore isolating the issue to the LH Drive motor, or a pump issue further up the circuit. On the advise of a You-tube video, I disassembled LH drive motor to find 1 missing Inner O-ring, and 1 Centre O-ring perished and broken. Both of the plastic seal cover things had chips and nicks missing too, but the LH drive motor had no signs of being opened before indicating they were original seals. Then out of curiosity I thought I would inspect the RH drive motor as well and found all o-rings intact (Not original seals, have been replaced at some stage). The reason i disassembled the RH was to see if the RH seals were in the same condition as the LH seals, and therefore I could ignore the missing broken LH seals as the casue of the problem. Given that the good motor (RH) has intact seals, and bad motor (LH) has missing/broken seals im feeling confident new seals could fix it. However, my hydraulics guy has suggested that the missing and perished O-rings in the LH drive motor is not the root cause of my problems and wants me to remove the engie/pump to inspect the relief valve on the underside of the pump. I can understand his theory on this, but ill be replacing both Drive Motor seal kits and re-testing before the engine and pump comes out. Ill keep the forum updated on my progress but in the mean time has anybody else got a thought on this?</p></blockquote><p></p>
[QUOTE="Old753, post: 103294, member: 16234"] Just an update on this so far, keep in mind the my LH motor was the one playing up especially in reverse. I removed both the drive motors with the intention of swapping LH to RH and RH to LH and therefore isolating the issue to the LH Drive motor, or a pump issue further up the circuit. On the advise of a You-tube video, I disassembled LH drive motor to find 1 missing Inner O-ring, and 1 Centre O-ring perished and broken. Both of the plastic seal cover things had chips and nicks missing too, but the LH drive motor had no signs of being opened before indicating they were original seals. Then out of curiosity I thought I would inspect the RH drive motor as well and found all o-rings intact (Not original seals, have been replaced at some stage). The reason i disassembled the RH was to see if the RH seals were in the same condition as the LH seals, and therefore I could ignore the missing broken LH seals as the casue of the problem. Given that the good motor (RH) has intact seals, and bad motor (LH) has missing/broken seals im feeling confident new seals could fix it. However, my hydraulics guy has suggested that the missing and perished O-rings in the LH drive motor is not the root cause of my problems and wants me to remove the engie/pump to inspect the relief valve on the underside of the pump. I can understand his theory on this, but ill be replacing both Drive Motor seal kits and re-testing before the engine and pump comes out. Ill keep the forum updated on my progress but in the mean time has anybody else got a thought on this? [/QUOTE]
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