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 Crusty's Travels
Last Post: Crusty
Posted On: 1 Minute Ago
Replies: 2,278
Views: 286,257
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Graywolf
Posted On: 4 Minutes Ago
Replies: 44,348
Views: 6,961,290
0 Occasional carb spit back, am I missing something?
Last Post: ezmerf
Posted On: 17 Minutes Ago
Replies: 26
Views: 905
0 You asked for it! "The Tess' Coffee Thread"
Last Post: Flame__
Posted On: 29 Minutes Ago
Replies: 10,783
Views: 868,465
0 If You Have An '04+ (Buell's too), Please Read (Oil Usage)
Last Post: JaKaL
Posted On: 30 Minutes Ago
Replies: 152
Views: 22,803
0 Grounded
Last Post: Nibelungen
Posted On: 32 Minutes Ago
Replies: 60
Views: 2,521
0 Alternator/generator Conversion
Last Post: doodah man
Posted On: 37 Minutes Ago
Replies: 132
Views: 68,320
0 Thursday 18th July 2019: Lympstone
Last Post: Folkie
Posted On: 59 Minutes Ago
Replies: 6
Views: 546
0 What did you do for your sporty Today?
Last Post: ParrotHead
Posted On: 1 Hour Ago
Replies: 6,118
Views: 777,166
0 Oil Filter Thread Size/Pitch?
Last Post: Rollbar
Posted On: 1 Hour Ago
Replies: 11
Views: 183
0 rattles like a can of bolts
Last Post: bustert
Posted On: 1 Hour Ago
Replies: 1
Views: 47
0 `83 XLX rebuid and questions thread
Last Post: spamer80
Posted On: 2 Hours Ago
Replies: 150
Views: 11,560
0 2020 Sportster?
Last Post: Desertfox
Posted On: 2 Hours Ago
Replies: 29
Views: 1,221
0 Power Loss At Sustained High RPMs
Last Post: Bigshankhank
Posted On: 2 Hours Ago
Replies: 23
Views: 483
0 Hot Rods, Rat Rods, and Customs.
Last Post: Stairman
Posted On: 3 Hours Ago
Replies: 3,517
Views: 415,067
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 3 Hours Ago
Replies: 12,191
Views: 1,112,934
0 how many run baffles, run open, or just run stock
Last Post: a-sad-anorak
Posted On: 3 Hours Ago
Replies: 411
Views: 93,601
7 I met a living legend.
Last Post: Stairman
Posted On: 4 Hours Ago
Replies: 29
Views: 1,565
0 PLEASE READ THIS Before You Post In 'The BUY - SELL - TRADE Zone'!
Last Post: Folkie
Posted On: 4 Hours Ago
Replies: 1
Views: 639
0 looking to swap mids for forwards
Last Post: Folkie
Posted On: 4 Hours Ago
Replies: 2
Views: 141
7 Oldest Motorcycle You've Owned
Last Post: Glamazon
Posted On: 5 Hours Ago
Replies: 56
Views: 2,931
0 What jets do you use?
Last Post: 60Gunner
Posted On: 5 Hours Ago
Replies: 244
Views: 77,543
0 Peanut, 3.3 or 4.5 gas tank ?
Last Post: 83XLX
Posted On: 6 Hours Ago
Replies: 222
Views: 63,522
0 This is gonna hurt.
Last Post: Graywolf
Posted On: 6 Hours Ago
Replies: 7,686
Views: 1,514,192
0 WTF is it with these F'n rocker cover leaks!
Last Post: 60Gunner
Posted On: 9 Hours Ago
Replies: 94
Views: 1,340
0 Can you Drown a Sportster ???
Last Post: IXL2Relax
Posted On: 9 Hours Ago
Replies: 22
Views: 613
0 Clutchlite ramps with pictures
Last Post: rocketmangb
Posted On: 9 Hours Ago
Replies: 27
Views: 4,836
0 For Sale: SE Race Ignition Tuner 32124-04B/Stock ICM
Last Post: 60Gunner
Posted On: 9 Hours Ago
Replies: 9
Views: 317
0 Cold Start. Then stall
Last Post: IXL2Relax
Posted On: 10 Hours Ago
Replies: 1
Views: 110
0 KT - 2019 - Done Riding - Not Hardly
Last Post: sportsterpaul
Posted On: 10 Hours Ago
Replies: 83
Views: 8,078
More...
Members Birthdays
merc, schvamf (47), MikeLightnin, o2man98 (39), Toadz (31), WingNut15B (31)
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #61  
Old 4 Days Ago
shanneba shanneba is online now
XL FORUM TEAM MEMBER
 
Join Date: Jul 2013
Location: Franklin, Indiana
Posts: 1,784
Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2013
Reputation: 2354006
shanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond reputeshanneba has a reputation beyond repute
Default

This may be of some interest in this discussion.

"How Today's F1 Engines Can Burn Oil to Make More Power"

"Fenske explains (hah!) two strategies F1 teams can use to manage oil burn, and both involve regulating crankcase pressure.
One method involves regulating crankcase pressure using system scavenger pumps of their dry-sump lubrication systems, which allows oil around the piston and into the chamber.
The other involves an ECU-controlled solenoid that lets crankcase pressure escape into the engine's intake system."


Wish the video was still available
https://www.roadandtrack.com/motorsp...ke-more-power/
__________________
2013 XL1200C

Find your Owner's Manual, Wiring Diagram and Parts List here :

https://serviceinfo.harley-davidson....cle/lookupForm
Enter your VIN OR
Use the search - enter year and model

If something doesn't work on your Sportster look here:
SportsterPedia.com
Reply With Quote
  #62  
Old 4 Days Ago
harley506d's Avatar
harley506d harley506d is offline
XL FORUM TEAM MEMBER
 
Join Date: May 2017
Location: Lubersac/France
Posts: 901
Sportster/Buell Model: 1200c
Sportster/Buell Year: 2005
Reputation: 1234962
harley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond reputeharley506d has a reputation beyond repute
Default

Did the plug cap mod myself, a nice cheap and cheerful kind of thing.

__________________
"Procrastination is the thief of time"................90's Harley ad.
"Don't wait for your ship to come in, swim out and meet the bloody thing".................Barry Sheene.
Reply With Quote
  #63  
Old 4 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,475
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 3827144
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

Quote:
Originally Posted by shanneba View Post
This may be of some interest in this discussion.
That's interesting...but weird at the same time.
Oil burns slower than gas.
Plus the gunk it makes when it's burnt.
Seems counterproductive??

Quote:
Originally Posted by harley506d View Post
Did the plug cap mod myself, a nice cheap and cheerful kind of thing.
That's pretty clean.
I assume stock air cleaner goes over the lines OK?
__________________
Reference the XLFORUM'S Sportsterpedia for additional technical information & advice

In Search of Fuel, Sunshine and a Steady Idle.
Reply With Quote
Sponsored Links
  #64  
Old 4 Days Ago
Tomcatt Tomcatt is offline
Dazed & Confused
 
Join Date: Feb 2019
Location: Never Never Land
Posts: 263
Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2017
Other Motorcycle Model: BMW R Nine T
Other Motorcycle Year: 2015
Reputation: 448670
Tomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond repute
Default

Quote:
Originally Posted by Hippysmack View Post
Oil burns slower than gas.
Plus the gunk it makes when it's burnt.
Seems counterproductive??
Normally it is. F1 has asinine fuel limits but a loophole that allows (also limited) oil consumption. So they run oil formulated to burn well to supplement the (limited) allowed gas.

Weird solutions brought on by stupid rules.
__________________
2017 XL1200C in Wisconsin, USA
Reply With Quote
  #65  
Old 4 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,475
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 3827144
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

Whatever it takes I guess.
Well, that ties in to what's good for racing ain't always for a street engine.
What type oil?...... Nope forget it, ain't going down that road again.....

The article says that some crankcase pressure is sometimes used to basically a add into the chambers.
That seems like another nightmare in controlling the bottom end.

They must measure the oil level periodically?
Reply With Quote
  #66  
Old 4 Days Ago
Tomcatt Tomcatt is offline
Dazed & Confused
 
Join Date: Feb 2019
Location: Never Never Land
Posts: 263
Sportster/Buell Model: XL1200C
Sportster/Buell Year: 2017
Other Motorcycle Model: BMW R Nine T
Other Motorcycle Year: 2015
Reputation: 448670
Tomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond reputeTomcatt has a reputation beyond repute
Default

Quote:
Originally Posted by Hippysmack View Post
They must measure the oil level periodically?
It's part of the post race check to ensure they haven't "consumed" too much, just like having more than a specified minimum amount of fuel left to be tested. Use too much of either and you're DQed. It is nuts.
Reply With Quote
  #67  
Old 4 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,475
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 3827144
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

It'd make me want to wear painters pants to have a place to stash a couple quarts.

bustert,
I've been over my annoying intrusions in the latest wetsumping and breather threads and I have no clue what you mean.
I'll wait and hope you can remind me what I wished I remembered.

Meanwhile, I'm going through the Ultimate Crankcase Breather thread again.
Reply With Quote
  #68  
Old 4 Days Ago
Toejam503's Avatar
Toejam503 Toejam503 is offline
Air-Cooled Forever
 
Join Date: May 2010
Location: Dakota Territory
Posts: 2,302
Sportster/Buell Model: XL 1200 C
Sportster/Buell Year: 2006
Sportster/Buell Model #2: (Prev.Own)XLH Milw.Spec.
Sportster/Buell Year #2: 1981
Reputation: 4221351
Toejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond repute
Default

I would bet that bustert meant the designers were trying to keep more "Oil mist" inside the engine to keep everything well lubed, when they designed the breather holes smaller. Does it increase c/c pressure?, only if the hole is too small or too long, or both.
Reply With Quote
  #69  
Old 4 Days Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,475
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 3827144
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

Well the air pressure will increase with the smaller holes.

Just like partially covering a water hose with your finger.
The flow doesn't change but it comes out of the hole faster due to the new restriction.
Of course, it backs up in the hose first then the stream reaches farther out with more force.
So there is something to the smaller hole.
bustert is kind of like Yoda sometimes.
I don't understand a word then all of a sudden, oh yeah, now I get it.
Reply With Quote
  #70  
Old 4 Days Ago
Toejam503's Avatar
Toejam503 Toejam503 is offline
Air-Cooled Forever
 
Join Date: May 2010
Location: Dakota Territory
Posts: 2,302
Sportster/Buell Model: XL 1200 C
Sportster/Buell Year: 2006
Sportster/Buell Model #2: (Prev.Own)XLH Milw.Spec.
Sportster/Buell Year #2: 1981
Reputation: 4221351
Toejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond reputeToejam503 has a reputation beyond repute
Default

Yeah, but I'd compare oil to water, and steam to oil mist, maybe like a pressure relief valve.
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 14:42.


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