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17 Pathfinder oil pump. Forums > > 17 Pathfinder oil pump. 17 Pathfinder oil pump.
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Old 01-03-2021, 08:24 AM
C-10guy C-10guy is offline
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2017 Pathfinder
 
Join Date: Jan 2021
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Default 17 Pathfinder oil pump.

I am working on a 2017 Pathfinder 3.5 VQ35DD. Upon disassembly, I realized the Gear that turns the bottom mounted oil pump is only held in place on the crankshaft by the torque of the main pulley bolt, against the timing gear, then against the oil pump gear. No keyway, no pins etc. Can this possibly be right? 2 slick surfaces pressed together with a bolt to turn a gear? Meaning if the bolt was the least bit loose, the oil pump would not turn. I can find no info on this, the parts diagrams do not even show that gear or chain that drives the oil pump. I am perplexed. Thank you for any info.
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Old 02-24-2021, 02:08 AM
smj999smj's Avatar
smj999smj smj999smj is offline
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2006 Pathfinder
2003 Frontier King Cab
2003 Frontier KC SVE 4x4
 
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The end of the crank that drives the oil pump has two flat-sided surfaces and the gear of the pump has two flat-sided surfaces inside of it. So, when the pump is installed, the flats of the oil pump gear must be lined up in the direction of the flats on the crankshaft so that it will slide all the way on.
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