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BigTerp's Tracker Sportsman 16' O/B Jet build
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<blockquote data-quote="BigTerp" data-source="post: 331192" data-attributes="member: 9169"><p>So my buddy brought his ohmeter over tonight and everything seems to check out. Power pack, temp switches, etc. are all good. We were able to ground the temp switch and run the motor in a barrel to put it in SLOW mode. SLOW mode isn't our problem. SLOW mode is very noticeable and different then what the motor is doing. While running in the barrel the motor would run at WOT but bogged down. Then when the water level in the barrel would start dropping the motor would open up and run like it should. It's almost as if the water going into the pump is causing some sort of restriction. Now, I checked my impeller clearance last night. It's not uniform. Some spots are tighter than .020 and others are over.027. If I rotate the flywheel, the clearances stay at the same spot in respect to the liner. So it doesn't seem to be a bent shaft, but more like an imperfect liner. But the liner isn't gouged or marked at all. Not sure if that could be causing this issue or not. My buddys guess it's there is some sort of restriction within the exhaust. Basically when there is any load on the motor it doesn't want to open up. Anyone have any ideas?</p></blockquote><p></p>
[QUOTE="BigTerp, post: 331192, member: 9169"] So my buddy brought his ohmeter over tonight and everything seems to check out. Power pack, temp switches, etc. are all good. We were able to ground the temp switch and run the motor in a barrel to put it in SLOW mode. SLOW mode isn't our problem. SLOW mode is very noticeable and different then what the motor is doing. While running in the barrel the motor would run at WOT but bogged down. Then when the water level in the barrel would start dropping the motor would open up and run like it should. It's almost as if the water going into the pump is causing some sort of restriction. Now, I checked my impeller clearance last night. It's not uniform. Some spots are tighter than .020 and others are over.027. If I rotate the flywheel, the clearances stay at the same spot in respect to the liner. So it doesn't seem to be a bent shaft, but more like an imperfect liner. But the liner isn't gouged or marked at all. Not sure if that could be causing this issue or not. My buddys guess it's there is some sort of restriction within the exhaust. Basically when there is any load on the motor it doesn't want to open up. Anyone have any ideas? [/QUOTE]
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BigTerp's Tracker Sportsman 16' O/B Jet build
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