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  #1  
Old 11-01-2012, 09:21 AM
DoubleTake DoubleTake is offline
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Mini Z motor problems?

We had our Mini Z 19/52 just idling yesterday when the motor started spitting and sputtering and then shut off. Smoke then came out from it. Tried cranking it, the motor will barely turn, sounds like its locked up. Oil was fine, no oil coming out. I took the pump drive belt off and tried to crank and same thing. Anything else I can check to make sure it is the motor or does this sound like the motor blew? It is a Kawasaki 19 with only around 300 hours.
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  #2  
Old 11-01-2012, 09:41 AM
hustlermidwest hustlermidwest is offline
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Sounds like my truck in the winter mornings! You were wise to try it without the hydro belt. We now know it's not the drive system. Next thing I would check would be the clutch. Sometimes the bearings freeze up and lock the clutch up and it makes you think it's the engine is frozen. Best bet it to remove the clutch. In this case just removing the belt won't tell you anything. Sadly you are going to hope its the clutch..

Brian O
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  #3  
Old 11-01-2012, 09:43 AM
DoubleTake DoubleTake is offline
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How do I remove clutch? Seems crazy for a motor on a commercial machine to go out in 300 hours.
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  #4  
Old 11-01-2012, 11:00 AM
DoubleTake DoubleTake is offline
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When I took the belt off, I do believe I spun that clutch pulley to make sure it was moving. Would it be able to spin if the clutch was locked up? This is just crazy for a motor to go out with 300 hours.
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  #5  
Old 11-01-2012, 11:45 AM
hustlermidwest hustlermidwest is offline
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Sometimes it's not the age but the mileage, other times it's the mileage not the age. 300 hours is short, but I can not pass judgement not knowing the history. To find the root of your issue we must eliminate possible causes one at a time. Once we are sure the issue is the engine then we break that down to find the cause.

Brian O
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  #6  
Old 11-03-2012, 03:19 PM
DoubleTake DoubleTake is offline
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Figured out it's the clutch. Took the clutch off and only half came off. Cant seem to get the other half off (pulley and the little piece attached to pulley). Any suggestions?
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Old 11-04-2012, 04:53 PM
hustlermidwest hustlermidwest is offline
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Slowly you need to work the clutch off. WD40 or any of the other penetrating oils you like need to get in the key slot on the crank and between the crank and the clutch. I don't recall any set screws anchoring that clutch to the crank. The key way is giving you some of the issues. Let the oils do their job and start working the clutch off. Rushing this job will give you additional headaches.
Maybe some one out here has a nice short cut.

Brian O
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  #8  
Old 11-07-2012, 07:31 PM
DoubleTake DoubleTake is offline
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Got the clutch back on and everything works. How do you tighten it, it only seems semi tight then the motor shaft starts spinning. How do I keep it from spinning long enough to fully tighten?
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  #9  
Old 11-08-2012, 08:29 AM
hustlermidwest hustlermidwest is offline
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Impact air tool but not everybody has one of those in their back pocket. The old shade tree mechanic would secure the flywheel from turning. It could be a two man job as one is on the floor and the other over the engine. Just be sure to torque the bolt to the correct amount. I'm on the road today but the torque values should be in your owners manuals. If you have lost yours you can find them on our website on the bottom of the page where it reads manuals. You really don't want that thing to come lose while it's engaged.

Brian O
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