The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Motor / Engine > Sportster Motorcycle - Bottom End
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Sportster Motorcycle - Bottom End Cams, Cases, Gears, Flywheel, Piston Conecting Rods, Oil Pump, etc...

Active Threads
0 Do Loud Pipes in fact save lives?
Last Post: iNSaNeSHaNe
Posted On: 19 Minutes Ago
Replies: 2,462
Views: 255,138
0 Primary cover gasket? 81-XLH
Last Post: ryder rick
Posted On: 23 Minutes Ago
Replies: 1
Views: 7
0 My 1250 to 1275 build
Last Post: NGOT8R
Posted On: 25 Minutes Ago
Replies: 109
Views: 4,607
2 Humble pie
Last Post: Sprtstr1200s
Posted On: 33 Minutes Ago
Replies: 55
Views: 3,138
0 2019 East Coast Meet and Greet
Last Post: mick42
Posted On: 38 Minutes Ago
Replies: 253
Views: 28,945
0 swapping older cam cover onto newer IH
Last Post: ryder rick
Posted On: 52 Minutes Ago
Replies: 6
Views: 178
0 WTF Happened
Last Post: ryder rick
Posted On: 59 Minutes Ago
Replies: 1,083
Views: 182,065
0 super b overflow
Last Post: ryder rick
Posted On: 1 Hour Ago
Replies: 1
Views: 24
0 77-78 OEM exhaust baffle removal
Last Post: ryder rick
Posted On: 1 Hour Ago
Replies: 36
Views: 1,758
0 HSR42 on a 90" ?
Last Post: t120r
Posted On: 1 Hour Ago
Replies: 0
Views: 8
0 Ironhead questions
Last Post: Chicken-hawk
Posted On: 1 Hour Ago
Replies: 114
Views: 4,226
0 High School Kids build Sportster Chopper
Last Post: Iron Mike
Posted On: 1 Hour Ago
Replies: 28
Views: 587
0 Operation Live Wire
Last Post: WI_duker
Posted On: 1 Hour Ago
Replies: 53
Views: 5,431
0 Hottie of the day, no nudity.
Last Post: trainman
Posted On: 1 Hour Ago
Replies: 11,221
Views: 1,001,564
0 What did you do to your EFI Sporty today?
Last Post: Bryan83taco
Posted On: 2 Hours Ago
Replies: 3,922
Views: 743,008
0 Hot Rods, Rat Rods, and Customs.
Last Post: Graywolf
Posted On: 2 Hours Ago
Replies: 3,369
Views: 384,895
0 2020 Sportsters
Last Post: NLXL
Posted On: 2 Hours Ago
Replies: 4
Views: 92
0 Just bought my 48 and love it! However... (Expected Much More Power)
Last Post: 60Gunner
Posted On: 2 Hours Ago
Replies: 24
Views: 4,989
0 Flame's New 1989
Last Post: iNSaNeSHaNe
Posted On: 2 Hours Ago
Replies: 592
Views: 82,780
0 Mikuni HS40 flatslide
Last Post: sportsterpaul
Posted On: 2 Hours Ago
Replies: 17
Views: 7,323
0 Hello
Last Post: sportsterpaul
Posted On: 2 Hours Ago
Replies: 11
Views: 96
0 Replaced front stwitch now back one dont work
Last Post: wedge
Posted On: 3 Hours Ago
Replies: 13
Views: 406
0 04 Rear engine mount pivot shaft spins when trying to undo drive side swingarm bolt
Last Post: wedge
Posted On: 3 Hours Ago
Replies: 30
Views: 1,023
0 Yet another issue with this build
Last Post: Bruce
Posted On: 3 Hours Ago
Replies: 13
Views: 324
0 Touring on A Sportster
Last Post: Toejam503
Posted On: 3 Hours Ago
Replies: 26
Views: 3,125
0 Roseville CA?
Last Post: Bryan1976
Posted On: 3 Hours Ago
Replies: 2
Views: 82
0 Longer Rear Brake (Foot Brake) Lever?
Last Post: Hippysmack
Posted On: 3 Hours Ago
Replies: 4
Views: 53
0 Iron 883 - turn signal quick blinks
Last Post: Folkie
Posted On: 4 Hours Ago
Replies: 6
Views: 79
0 Ftr 1200
Last Post: Jason's Sporty
Posted On: 4 Hours Ago
Replies: 5
Views: 634
0 Valve to piston contact
Last Post: 60Gunner
Posted On: 4 Hours Ago
Replies: 32
Views: 892
More...
Members Birthdays
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #1  
Old 3 Days Ago
jlv jlv is offline
Biker
 
Join Date: Jul 2009
Posts: 4
Sportster/Buell Model: XL1000
Sportster/Buell Year: 1977
Other Motorcycle Model: Dyna 1991, Honda CBX 1000
Other Motorcycle Year: 1981
Reputation: 77
jlv is an unknown quantity at this point
Default Oil pump Iron 1000 1979 bizarre.....

After complete rebuild of my engine, I blocked an admission valve after a few miles. The valve was easily rput back into its place with a little screw driver through the spark hole. Since I hate this type of behaviour of a brand new engine, I opened the top to realize that apparently oil never reached valves and cams, oil lines are perfectly clean' oil pump looks new, but after long inpection, I cannot understand how the oil could go to the engine if the place marked with a X on the below picture was not drilled. Before I drill it myself, i would like your advise re this blind element of pump. A factory mistake ? A model from later/earlier model (1979 had no oil filter).
Note that I never saw this engine in function before as I inherited the bike in cartons....



Thanks for your help.
__________________
Jean-Luc
Reply With Quote
  #2  
Old 3 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,102
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 3339712
Hippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond repute
Default

That appears to be an 86-90 oil pump.
At least the bottom cover is.
Here's an 86-90 cover:


77-E83 cover:



77-85 pump body has only 1 fitting on the body:


86-90 has 2 fittings on the body:


The feed lines are configured differently on 86-90 than 77-85 oil pumps.
Here's the oil pump sections with pics and info for:
Evo pumps:
http://sportsterpedia.com/doku.php/techtalk:evoil03

IH pumps:
http://sportsterpedia.com/doku.php/techtalk:ihil03

What does the front of the pump body look like?
It's either L83-85 or 86-90.

edit:
If you have the L83 body and drill the hole in the cover, it won't work properly and it'll wet sump from the jump.
The feed gerotors got bigger in 86.
The depth of the cover got bigger to accommodate this change.
That'll leave the clearances too loose inside using it on a L83 pump body.
__________________
Reference the XLFORUM'S Sportsterpedia for additional technical information & advice

In Search of Fuel, Sunshine and a Steady Idle.

Last edited by Hippysmack; 3 Days Ago at 12:28..
Reply With Quote
  #3  
Old 3 Days Ago
jlv jlv is offline
Biker
 
Join Date: Jul 2009
Posts: 4
Sportster/Buell Model: XL1000
Sportster/Buell Year: 1977
Other Motorcycle Model: Dyna 1991, Honda CBX 1000
Other Motorcycle Year: 1981
Reputation: 77
jlv is an unknown quantity at this point
Default

Thanks alot for your help. By body pump has one hole only, withbthe brass connector where oil returns back to the tank. Without drilling, the only hole where the oil could go is the one tapped by the oil pressure sensor in the pumb bottom cover. With the hole drilled, the oil now can go to the side hole in the bottom of the case cover, and then go up to the upper hole in the sa8me case cover that feeds the cams pipe.
Reply With Quote
  #4  
Old 3 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,102
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 3339712
Hippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond repute
Default

If you use the 86 cover, your gerotors will be loose inside the pump.
They will probably deliver less oil to / from the engine.
Oil may also run straight from the feed side to the scavenge side starving your engine.
Just trying to help but you need the correct cover for your pump.
Reply With Quote
  #5  
Old 3 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,102
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 3339712
Hippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond repute
Default

I just tried to put the 86 cover on the E83 pump.
It just about doubles the tension on the gear to turn it.
The depth of the cover shows up on the top of the feed gerotors when buttoned up.
This squishes the (edit: scavenge) gears harder against the plates and will result in wearing down of the plates / gerotors.
This could warp the outer seal and oil can transfer between the pump sides..

Last edited by Hippysmack; 3 Days Ago at 20:18..
Reply With Quote
  #6  
Old 3 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,102
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 3339712
Hippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond repute
Default

You should also determine which feed gerotors you have.
The scavenge gerotors are the same size 77-90.

77-85 gerotor app. dims:
http://sportsterpedia.com/doku.php/t...b#gerotor_dims
86-90 gerotor app. dims:
http://sportsterpedia.com/doku.php/t...j#gerotor_dims

This is how the feed gerotors should sit in the the proper cover.
Spec: .001"-.011" above the lip.


This is how the 77-85 feed gerotors fit in an 86-90 cover.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Sponsored Links
All times are GMT +1. The time now is 02:33.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC