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Re: oil pump driveshaft wear?
[Re: ahy]
#1200540
03/20/12 11:59 PM
03/20/12 11:59 PM
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Joined: Dec 2011
Posts: 268 ca
brownout
OP
enthusiast
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OP
enthusiast
Joined: Dec 2011
Posts: 268
ca
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I dont know the material. Its a hydraulic flat tappet cam. heres a picture
Last edited by brownout; 03/21/12 12:21 AM.
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Re: oil pump driveshaft wear?
[Re: ahy]
#1200542
03/21/12 12:50 AM
03/21/12 12:50 AM
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Joined: Mar 2003
Posts: 4,848 Memphis
HemiRick
master
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master
Joined: Mar 2003
Posts: 4,848
Memphis
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Sure does look to me like the teeth of the gear on the oil pump drive are worn. If so, this probably is what your seeing in the oil. This wear is not normal and I dont know of a cause off hand. What weight oil you been running?
Take care, Rick 68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
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Re: oil pump driveshaft wear?
[Re: brownout]
#1200545
03/21/12 12:42 PM
03/21/12 12:42 PM
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Joined: Mar 2003
Posts: 4,848 Memphis
HemiRick
master
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master
Joined: Mar 2003
Posts: 4,848
Memphis
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The HV pump and the thick oil is putting to much load on the oil pump drive and wearing it out. Replace the driveshaft and run some lower weight oil.
Take care, Rick 68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
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Re: oil pump driveshaft wear?
[Re: brownout]
#1200548
03/22/12 02:17 PM
03/22/12 02:17 PM
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Joined: Aug 2005
Posts: 4,799 ILL
MLR426
master
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master
Joined: Aug 2005
Posts: 4,799
ILL
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Guys people have ran 20-50 oil with HV pumps for years with out any issues. Just looking at the photo it appears the drive gear is not meshing squarely with the cam gear ? Setting to deep as though the bronze bushing flange isn't there or the bottom of the gears raised area that the bushing rides on isn't there. I looks like all the pressure is being put on the top side of the drive gear and appears to have tapered the gear splines on the drive gear. Is the bronze bushing in the block ?? In the photo the drive gear doesn't appear square with the block. Just a thought
logan426
Last edited by Logan426; 03/22/12 02:22 PM.
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