EVO All Evo Model Discussion

Chewed Oil Pump Pinion Shaft Gear

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  #11  
Old 04-06-2021, 12:46 PM
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Originally Posted by Dan89FLSTC
There is no way of knowing what is inside the crankcases, or has contaminated the oil passages and bearings.

If it were my bike I would not spend a penny on that engine until it was completely disassembled and inspected.
I'll second that. With all that debris sitting in the bottom of the cam chest, plus a locked up oil pump, I think the whole thing needs to get pulled apart. Including splitting the wheels and going through the con-rod bearings.
 
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  #12  
Old 04-07-2021, 12:06 PM
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Originally Posted by 98hotrodfatboy
Those marks in the oil pump that Daven9113 posted seriously look like a cam needle bearing mark in the housing AND...

Dan89FLSTC is absolutely correct....
How should a cam needle come into the oil pump?
I never heard that and also don't see how that should happen.
Of course the mark looks strange but I can't believe its from a needle.
 
  #13  
Old 04-07-2021, 12:29 PM
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To me, that mark looks sort of like the pump gear got wonky and banged it when something got stuck in the drive gear in the timing chest. The 2 marks look spaced like 2 cogs of the pump gear. The bore that the shaft runs through may be toast now. Probably best to just replace the pump.
 
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