Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

should I replace this oil pump

Thread Tools
 
Search this Thread
 
Old Apr 28, 2019 | 05:44 PM
  #1  
langwilliams's Avatar
langwilliams
Thread Starter
|
Elite HDF Member
15 Year Member
Photogenic
Liked
Loved
Joined: Jul 2010
Posts: 3,830
Likes: 302
From: Lorain Ohio
Default should I replace this oil pump

pulled the oil pump apart in my 14 Street glide an saw what looked liked scaring on the thick gerotor an a little on the housing. I ran my fingernail across it an couldn't feet it catch but it doesn't look pretty.






I've heard there's a "screamin eagle" oil pump but I can't find a part number.
 
Reply
Old Apr 30, 2019 | 06:25 AM
  #2  
prodrag1320's Avatar
prodrag1320
Banned
Joined: Sep 2009
Posts: 3,569
Likes: 624
From: deland,florida
Default

surprised you cant feel the grooves with a finger nail.looks like this one slipped thru quality control,gears have weird machine marks as dose the pump itself.ide replace it,go with the blue S&S pump
 
Reply
Old Apr 30, 2019 | 08:29 AM
  #3  
bustert's Avatar
bustert
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2008
Posts: 5,034
Likes: 981
Default

that would be a judgement call.
where all the action is between the outside and inside tooth mesh.
it could be some grit got in between the pump housing and outer rotor. if you cannot feel the grooving, it is probably micro polishing.
why did you pull the pump, issues with pressure?
 
Reply
Old Apr 30, 2019 | 12:00 PM
  #4  
langwilliams's Avatar
langwilliams
Thread Starter
|
Elite HDF Member
15 Year Member
Photogenic
Liked
Loved
Joined: Jul 2010
Posts: 3,830
Likes: 302
From: Lorain Ohio
Default

bike has 40K on it an I pulled the the cam plate to change cams so I did an inspection. If the oil pressure gauge in the info center is accurate I had good oil pressure.
 
Reply
Old Apr 30, 2019 | 02:17 PM
  #5  
djl's Avatar
djl
HDF Community Team
Veteran: Army
15 Year Member
Photogenic
Liked
Joined: Jun 2006
Posts: 12,763
Likes: 2,596
From: san antonio
Community Team
Default

Debris passing through the pump did not cause the scoring. I agree with Kirby, the scoring looks like machine tool marks. Having said that, debris passing through that could leave those marks, the OP would have more serious problems; replace it.

Post a picture of the surface of the cam plate at the interface with the pump.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
soft 02
General Harley Davidson Chat
12
Mar 7, 2013 05:28 PM
stu1110
Touring Models
17
Jun 12, 2011 11:42 PM
Rangerbob
Exhaust System Topics
30
Mar 24, 2011 03:32 PM
Jpdyna
Dyna Glide Models
0
Feb 18, 2010 08:38 PM
hdsmeden
Softail Models
2
Aug 30, 2009 06:30 PM




All times are GMT -5. The time now is 04:05 AM.