Oil pump scoring; How much is too much?
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Grand HDF Member
Joined: Sep 2017
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From: Dubuque, IA
Oil pump scoring; How much is too much?
After close inspection, I see I have some scoring. Not sure if it's from previous owner as I'm pretty meticulous about cleanliness. However I did have an adjustable push rod come loose that MAY have caused some crap to run thru.
The pump body has some scoring in the scavenge area. Mainly just this one spot. The feed gerators and where they mate to the cam plate have some as well. I've sure seen worse but now's the time...oil pressure has not been even a slight issue nor has sumping. Maybe 4-6oz on tear down.
What say you?
The pump body has some scoring in the scavenge area. Mainly just this one spot. The feed gerators and where they mate to the cam plate have some as well. I've sure seen worse but now's the time...oil pressure has not been even a slight issue nor has sumping. Maybe 4-6oz on tear down.
What say you?
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Grand HDF Member
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From: Dubuque, IA
Yeah I figured as much. I can feel it. Barely but I can feel it. No big deal except I'd want an oem replacement and Lord knows how long that could take. Still waiting for oem cylinder studs I ordered 2 weeks ago. I dread replacing anything oem anymore.
Anyone happen to know the part number?
Anyone happen to know the part number?
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Grand HDF Member
Joined: Sep 2017
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From: Dubuque, IA
That was my first thought too. I've sure seen worse and with pinion shaft run out what it is on these things I wonder how many pumps out there are a lot worse and without a clue they are.
Everything is being thoroughly flushed and the crank replaced with an S&S. I could easily flat plate the cam plate. Those I can hardly feel at all. Its only the face of the feed then really.
Everything is being thoroughly flushed and the crank replaced with an S&S. I could easily flat plate the cam plate. Those I can hardly feel at all. Its only the face of the feed then really.
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Based on photos alone. I thought 60 was running all new cam chest guts; guess not.
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Thread Starter
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Grand HDF Member
Joined: Sep 2017
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From: Dubuque, IA
I did pull the bypass valve/spring. Not a spec of anything and shiny smooth too.
Only reason I could see is having outer cam bearings and increased oil pressure with like the fueling setup or S&S.
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Joined: Feb 2016
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From: British Columbia
Run it.
That was my first thought too. I've sure seen worse and with pinion shaft run out what it is on these things I wonder how many pumps out there are a lot worse and without a clue they are.
Everything is being thoroughly flushed and the crank replaced with an S&S. I could easily flat plate the cam plate. Those I can hardly feel at all. Its only the face of the feed then really.
Everything is being thoroughly flushed and the crank replaced with an S&S. I could easily flat plate the cam plate. Those I can hardly feel at all. Its only the face of the feed then really.