Reply to thread

Message: <blockquote data-quote="Mike10" data-source="post: 50038" data-attributes="member: 5461">The case drain for the motors is in the end of the motor that goes into the chain case.  You might try draining enough oil from the chain cases to remove the side covers.  Leave enough oil in the chain cases so the oil pickup is still submerged.  The pickup is at the bottom of the chain case next to the large gear.  Start the engine, engage the parking brake and have someone gently stroke the hydrostat lever forward and backwards and watch how much oil is flowing through the case drain.   If you have bad internal leakage it will show up in the oil flow from the case drain.  You can also check the case drain of the pumps by removing the smaller hose on the side of the pumps and installing a longer hose and run it into a bucket.Damage to the pistons is a concern.  Something cause the scoring.  Generally the metal that causes scoring starts in the hydrostat pumps.  How was the plate in the end cap of the motor where the pistons with the slippers ride on.  Damage usually shows up here.  You should not catch a fingernail on any scratches on that surface or the slippers.</blockquote>