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 New LED headlight bulb. Highbeam aim wrong.
Last Post: Folkie
Posted On: 24 Minutes Ago
Replies: 12
Views: 187
0 Lake Erie Ride Alums?
Last Post: XL Ed
Posted On: 38 Minutes Ago
Replies: 27
Views: 2,263
0 New Lithium Battery, Lights Go Out
Last Post: XL Ed
Posted On: 41 Minutes Ago
Replies: 22
Views: 469
0 Leaky oil drain plug.
Last Post: NHPS
Posted On: 54 Minutes Ago
Replies: 0
Views: 4
0 Wideband O2 tuning an '03 883
Last Post: robbie202
Posted On: 59 Minutes Ago
Replies: 0
Views: 2
0 Ironhead questions
Last Post: davixlrtt
Posted On: 1 Hour Ago
Replies: 122
Views: 4,716
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 1 Hour Ago
Replies: 43,769
Views: 6,847,698
0 Hot Rods, Rat Rods, and Customs.
Last Post: Stairman
Posted On: 1 Hour Ago
Replies: 3,384
Views: 385,233
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 1 Hour Ago
Replies: 11,256
Views: 1,003,502
0 what brake master cylinder can I use?
Last Post: mickey t
Posted On: 1 Hour Ago
Replies: 1
Views: 82
0 Crusty's Travels
Last Post: Crusty
Posted On: 1 Hour Ago
Replies: 2,155
Views: 261,058
0 Longer Rear Brake (Foot Brake) Lever?
Last Post: ChrisOfTheOT
Posted On: 2 Hours Ago
Replies: 9
Views: 130
0 swapping older cam cover onto newer IH
Last Post: forqueue
Posted On: 3 Hours Ago
Replies: 18
Views: 465
0 PLEASE READ THIS Before You Post In 'The BUY - SELL - TRADE Zone'!
Last Post: Folkie
Posted On: 4 Hours Ago
Replies: 1
Views: 280
0 Screamin Eagle? (Cams)
Last Post: koalaracing
Posted On: 4 Hours Ago
Replies: 7
Views: 286
0 71 Iron
Last Post: mickey t
Posted On: 4 Hours Ago
Replies: 0
Views: 33
0 AOL Blows
Last Post: Hippysmack
Posted On: 6 Hours Ago
Replies: 21
Views: 574
0 Iree's late night cafe
Last Post: Graywolf
Posted On: 6 Hours Ago
Replies: 1,214
Views: 148,406
0 What did you do to your EFI Sporty today?
Last Post: xElvis
Posted On: 7 Hours Ago
Replies: 3,927
Views: 743,444
0 Electrical Gremlin and weird Speedo Behavior
Last Post: xElvis
Posted On: 7 Hours Ago
Replies: 14
Views: 595
0 If you could only have one bike, would it be a Sporster?
Last Post: xElvis
Posted On: 7 Hours Ago
Replies: 154
Views: 24,540
0 ....1
Last Post: toe
Posted On: 7 Hours Ago
Replies: 4,836
Views: 280,076
0 What Years Actually Fit the 1990 XLH?
Last Post: Rollbar
Posted On: 7 Hours Ago
Replies: 6
Views: 174
6 73 Sportster Starts, Runs Fine, Dies
Last Post: doodah man
Posted On: 8 Hours Ago
Replies: 58
Views: 2,329
0 Stumped! Need assistance (No Power Over 3k RPM)
Last Post: 60Gunner
Posted On: 8 Hours Ago
Replies: 85
Views: 11,264
0 THE Trainspotting Thread
Last Post: hammer6315
Posted On: 8 Hours Ago
Replies: 2,374
Views: 309,911
0 ‘15 Iron Chopped Fender/struts
Last Post: jjcsr74
Posted On: 9 Hours Ago
Replies: 0
Views: 36
0 The chicken or the egg (bent pushrod)
Last Post: bustert
Posted On: 9 Hours Ago
Replies: 12
Views: 448
0 Dynojet Power Vision 2
Last Post: whittlebeast
Posted On: 9 Hours Ago
Replies: 221
Views: 25,798
0 2020 Sportsters
Last Post: jjcsr74
Posted On: 9 Hours Ago
Replies: 7
Views: 298
More...
Members Birthdays
dtw757 (65), XLH75Rider (64), JRLang13 (57), Shaerona (55), christophe (52), collectovince (51), buckethead (41), Hang_Em_High (39)
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #41  
Old 1 Week Ago
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 9,122
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 1996840
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

i do not think you will lose any mesh. you take away from the pinion and add to the oil drive, the dimension will stay the same. if the assy is tight fit, then the shear forces will be nil so the 1/2 moon drive and key will act as one. the bronze should handle the load since this is not like the ironhead setup where there is a little play.
there are several propeller shops around here that can actually cast in an extension but then again, no big deal to machine one from a stock piece of bronze material, probably get the id and od from off the shelf.
Reply With Quote
  #42  
Old 1 Week Ago
rocketmangb's Avatar
rocketmangb rocketmangb is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2008
Location: So Cal
Posts: 20,898
Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2006
Sportster/Buell Model #2: XL1200C
Sportster/Buell Year #2: 2006
Other Motorcycle Model: 48 "Totalled" By a Douche
Other Motorcycle Year: 2012
Reputation: 3656358
rocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond repute
Default

Looks like that pinion was heat treated after it was machined.
__________________
Thy Sportster Come
It Shall Be Done
On Earth as it is on Salt
2006 Sportster XL1250C
Hammer Sledge Heads 1.98X1.61 Valves
Hammer 600 Cams
Big Ass CP/Hammer Pistons
Mikuni HSR 45 /Hammer Billet Manifold (Now HSR 48)
Jetted 27.5 slow,182.5 Main
97 Needle,Clip posistion 3
Hurricane Flow 3" offset AC,Rocketman Mod
Daytona Twin Tec TC88A,Rico Scarecrow Map
Sumax Thundervolt plug wires,NGK DCPR8EIX spark plugs. Gapped .040 and Indexed
Cycle Electric Stator and Regulator
Alto Carbonite Clutch
Royal Purple 20W50 MC Primary oil
Patriot Defender Pipe
Royal Purple 20W50 MC Engine Oil
Napa 7148 oil filter
Max Power, 111.47
Max Torque, 84.39
Best 1/4 Mile ET to date 11.85
Best 1/4 Speed to date 115.14
Build by Jester Motorwerkz West
Reply With Quote
  #43  
Old 1 Week Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,108
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

What does that bronze gear fit?
Unless some hella good machine work was done before it was cut down,
It was made with the shoulder.
Then the shoulder was cut down.
(look at the shoulder to gear joint in pic 3)
That does keep the spacing correct.

Stock buell bronze gear for comparison:
__________________
Reference the XLFORUM'S Sportsterpedia for additional technical information & advice

In Search of Fuel, Sunshine and a Steady Idle.
Reply With Quote
  #44  
Old 1 Week Ago
rocketmangb's Avatar
rocketmangb rocketmangb is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2008
Location: So Cal
Posts: 20,898
Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2006
Sportster/Buell Model #2: XL1200C
Sportster/Buell Year #2: 2006
Other Motorcycle Model: 48 "Totalled" By a Douche
Other Motorcycle Year: 2012
Reputation: 3656358
rocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond reputerocketmangb has a reputation beyond repute
Default

I see ur point.
Perhaps both are custom pieces ?
Reply With Quote
  #45  
Old 1 Week Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,108
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

Fun Facts:
We have been erroneously been calling the oil pump gear mesh a 'worm gear" configuration.
It's actually 2 right handed helical gears in a 90 degree or cross axis.
edit: (shoulders or 'hubs' are common on them)

The teeth on these gears stay in contact for longer than straight teeth, which allows them to transmit higher loads at higher speeds than spur gears.
Gears are carbon steel for strength. Teeth are hardened for increased wear resistance.
(once axial play wears the hardness, pop goes the weasel)

For gears to mesh correctly, they must have the same pressure angle and pitch.
Helical gears can be configured to transmit motion in a straight line or at a 90° angle. To transmit motion at a 90° angle, pair two gears with the same tooth direction.
To transmit motion in a straight line, use one left-hand and one right-hand gear.
To change speed and torque in your assembly, pair two gears with different numbers of teeth.
https://www.mcmaster.com/helical-gears

McMaster doesn't seem to have a 10 tooth heli gear or any in bronze.
But they are available somewhere, just got to find it.

There is also 10 teeth on the drive gear at the pinion shaft and 20 teeth on the oil pump driveshaft.
2:1 ratio of the gears means the oil pump RPM is half the speed of the engine.

Last edited by Hippysmack; 6 Days Ago at 20:35..
Reply With Quote
Sponsored Links
  #46  
Old 6 Days Ago
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 9,122
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 1996840
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

i think you meant 1/2 speed.
two crank rotation to one pump.

you wouldn't happen to have the dimensions on the pump gear?
going back to foggy hollow of the mind, it resembles the replacement gear on a chrysler slant six distributor.
Reply With Quote
  #47  
Old 6 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,108
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 swear I'm starting to worry about me.....
You're right, the oil pump turns half speed of the engine.
I changed that...
Reply With Quote
  #48  
Old 6 Days Ago
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 9,122
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 1996840
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

talk about a scavenging son of a gun?!?
anywho
these people can be a source of bronze gears
https://www.bostongear.com/products/.../helical-gears
Reply With Quote
  #49  
Old 6 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,108
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's what I'm wondering.
The op on Facebook may have a distinct affiliation with ordering these gears.
But, it could have been from a distributor or oil pump from an automobile.

I have been off and on looking into the sizes and learning nomenclature today.
I have my old gear I can measure.
Reply With Quote
  #50  
Old 5 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,108
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've been having a hard time measuring this thing.
I don't have the right tools to measure the teeth.
The helix angle doesn't look to be more than a few degrees from the lead angle from eyeballing.
I got the lead angle at 25 degrees.
Bore app .634"
OD app 1.192"
Width app .629"




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 12:46.


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