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Old 07-19-2016, 07:48 AM   #10
Gelbster
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Join Date: May 2014
Location: S.California
Posts: 2,027
"One thing i did notice is that when it starts to heat up at idle, if I raise the idle to about 3k, the needle starts to go down.[/QUOTE]

Sounds like the w/p is not efficient at low rpm. Had a previous(metal) w/p failure gouged out the crankcase half and caused excessive clearance between the impeller blades and the housing?
Have plastic impeller fragments from a previous failure blocked the system? Try looking in the heat exchanger.
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