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Jet Boats
General Jet Boat Discussions
Impeller tolerance
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<blockquote data-quote="Jetboater-TB" data-source="post: 365255" data-attributes="member: 9095"><p>A little looseness if normal before its all bolted up. This note is from OBJ's web troubleshooting web page: https://outboardjets.com/troubleshooting/</p><p></p><p>Driveshaft wobble in bearing housing before assembly</p><p></p><p>Before the driveshaft assembly is mounted in the motor, the driveshaft will appear to wobble in the bearings. This is a normal condition. When mounted in the motor, the upper end of the driveshaft is supported in the crankshaft and the system becomes quite rigid under load. If you are concerned about the condition of the bearings, watch the texture of the grease coming out of the lube hose during lubrication. The 630-AA Lubriplate grease coming out will normally be light gray. If water is present, the seals need to be replaced. If the grease starts turning dark gray, the bearing should be inspected and replaced if necessary.</p></blockquote><p></p>
[QUOTE="Jetboater-TB, post: 365255, member: 9095"] A little looseness if normal before its all bolted up. This note is from OBJ's web troubleshooting web page: https://outboardjets.com/troubleshooting/ Driveshaft wobble in bearing housing before assembly Before the driveshaft assembly is mounted in the motor, the driveshaft will appear to wobble in the bearings. This is a normal condition. When mounted in the motor, the upper end of the driveshaft is supported in the crankshaft and the system becomes quite rigid under load. If you are concerned about the condition of the bearings, watch the texture of the grease coming out of the lube hose during lubrication. The 630-AA Lubriplate grease coming out will normally be light gray. If water is present, the seals need to be replaced. If the grease starts turning dark gray, the bearing should be inspected and replaced if necessary. [/QUOTE]
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Impeller tolerance
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