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

Notices

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

Active Threads
0 RPM's vs. MPH
Last Post: 01rk
Posted On: 5 Minutes Ago
Replies: 10
Views: 254
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 11 Minutes Ago
Replies: 51,744
Views: 8,689,462
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 33 Minutes Ago
Replies: 31,617
Views: 3,633,737
0 Aluminum patina
Last Post: IronMick
Posted On: 56 Minutes Ago
Replies: 16
Views: 507
0 A new sourkraut in the house
Last Post: Stairman
Posted On: 57 Minutes Ago
Replies: 2
Views: 29
6 Static Timing: Identifying Wide/Small Cam Lobes
Last Post: 73HEAD
Posted On: 1 Hour Ago
Replies: 36
Views: 4,019
0 Where To Get Free Air
Last Post: rejeanprimeau
Posted On: 1 Hour Ago
Replies: 44
Views: 1,556
0 Help & advice needed
Last Post: Andy Hog
Posted On: 2 Hours Ago
Replies: 25
Views: 1,185
0 Hammer 1275 oil leak riddle
Last Post: Lukidj
Posted On: 3 Hours Ago
Replies: 30
Views: 2,886
0 KT - 2021 - You're In It Now
Last Post: IXL2Relax
Posted On: 4 Hours Ago
Replies: 56
Views: 10,163
0 What have I gotten myself into?
Last Post: juzyHD
Posted On: 6 Hours Ago
Replies: 8
Views: 192
0 Piston melted
Last Post: kusaj
Posted On: 6 Hours Ago
Replies: 54
Views: 2,004
0 Iree's late night cafe
Last Post: ~Grind~
Posted On: 6 Hours Ago
Replies: 2,096
Views: 340,406
0 Dragging clutch
Last Post: doodah man
Posted On: 7 Hours Ago
Replies: 6
Views: 164
0 Happy Birthday Shanneba!!!
Last Post: Bow only
Posted On: 7 Hours Ago
Replies: 8
Views: 188
0 teflon buttons or circlips?
Last Post: Ferrous Head
Posted On: 7 Hours Ago
Replies: 40
Views: 2,035
0 Headers Exhaust Sportster 1988/2005 does it fit
Last Post: Stojan85
Posted On: 7 Hours Ago
Replies: 0
Views: 42
0 Shovster build take2
Last Post: billeuze
Posted On: 8 Hours Ago
Replies: 255
Views: 29,287
0 05 1200R cylinder oil leak and clacking
Last Post: Hippysmack
Posted On: 8 Hours Ago
Replies: 77
Views: 4,658
0 Happy Birthday Crusty and Joes95bobber!
Last Post: sportsterpaul
Posted On: 9 Hours Ago
Replies: 19
Views: 653
0 Intake Seals
Last Post: Randy_rots
Posted On: 9 Hours Ago
Replies: 10
Views: 315
0 Keep & Kill
Last Post: Crusty
Posted On: 10 Hours Ago
Replies: 24,157
Views: 1,424,473
0 Easy start cam choice
Last Post: mjt754
Posted On: 11 Hours Ago
Replies: 108
Views: 3,452
0 This week on Craig's list
Last Post: Ferrous Head
Posted On: 12 Hours Ago
Replies: 5,350
Views: 862,333
0 Roads I'd like to ride.
Last Post: shanneba
Posted On: 12 Hours Ago
Replies: 3,606
Views: 404,830
0 40 Years
Last Post: BKB
Posted On: 13 Hours Ago
Replies: 9
Views: 204
0 Allegheny National Park
Last Post: BKB
Posted On: 13 Hours Ago
Replies: 79
Views: 7,770
0 Best Moto Sticker Ever
Last Post: rokytnji
Posted On: 13 Hours Ago
Replies: 7
Views: 287
0 Sportster S models being delivered to dealers
Last Post: rokytnji
Posted On: 13 Hours Ago
Replies: 8
Views: 362
0 Which Battery?
Last Post: Tomcatt
Posted On: 13 Hours Ago
Replies: 92
Views: 28,070
More...
Members Birthdays
Reply
 
Share Thread Tools Display Modes
  #811  
Old 3rd November 2019
harley506d's Avatar
harley506d harley506d is offline
XL FORUM TEAM MEMBER
 
Join Date: May 2017
Location: Golcar
Posts: 1,803
Sportster/Buell Model: 1200c
Sportster/Buell Year: 2005
Reputation: 3524705
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

Those washers look the same as they use on the brake lines. Much better than copper.
__________________
"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
  #812  
Old 3rd November 2019
Jollly Rogers Jollly Rogers is offline
Chief Master Mechanic
 
Join Date: Jun 2014
Location: Northeastern West Virginia
Posts: 486
Sportster/Buell Model: 883 custom
Sportster/Buell Year: 2006
Reputation: 734393
Jollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond reputeJollly Rogers has a reputation beyond repute
Default

GM used those washers on oil pan drain plugs in the 90s and 2000s. Then they added a groove in the washer head of the bolt for a modified o-ring. The pictured seal washers can get torn up by over torquing and uneven surfaces they contact. Burrs where the surface is tapped for threads should be checked for and removed.
Joe
Reply With Quote
  #813  
Old 3rd November 2019
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 10,609
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 3365307
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

although could be related to laws, the orifice choice was based off displacement volume to control pulsation and to have a minimal effect on the reading.
it would be diff for diff engines.
if it was just flow, a "SONY" flow calculator would do the trick.
https://petersoninst.com/wp-content/.../12/sonney.jpg
Reply With Quote
  #814  
Old 4th November 2019
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 7,983
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 7823783
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

Today's testing with the new umbrellas showed about a 3-1/4" reduction in vacuum at idle.
edit:
That's in the left leg (6-1/2" of water total).

The engine seems to lope a little better at idle although there wasn't a seat of the pants difference on the road.

I tested with the A/C off also through 5000 and there wasn't any difference between having it on or having it off.

I moved the timing both ways while testing and there was no difference in the readings.

But I'm now going to positive pressure around 4200 rpm.
At both 1000 and 2000 RPM, there was not a fast changing variance in the measurement (as was in the previous test mostly at idle).
The variant level is still about a 1/4" up and down but it rises and falls slower now.

The spitting back now begins around 4100-4200 in the shop. Coincidently that's about where I'm going to positive now.
I don't notice this at all on the road. I haven't touched the carb yet.
I call it spitting back but there is a noticeable vibration and a change in engine harmonics when this happens.
There doesn't seem to be any engine drag as I can roll the throttle over it and it kind of goes away.

I forgot to pull the oil cap today.

1000 RPM:


2000 RPM:
[IMG][/IMG]

3000 RPM:


4000 RPM:


5000 RPM:


1000 RPM with the A/C removed:


There is condensation and light oil mist accumulated at the bolts.
But none of this is in the A/C and no oil puking.



edit:
I'll add also I've had no noticeable signs of wetsumping or oil puking out the breathers even before any of this testing began.
This is the first time I've had the A/C off during testing or paid attention to the bolts.
So the oil accumulation coming mainly from the rear bolt may have been from the rear umbrella before I changed them.
It was a little stiffer than the front but still would bend over. Just not as much as the front would.
The front was just as flimsy as a new one.
__________________
Diagnosis begins before teardown, during and after rebuild.

In Search of Fuel, Sunshine and a Steady Idle.

Reference the XLFORUM'S Sportsterpedia
for additional technical information & advice

Last edited by Hippysmack; 8th November 2019 at 03:01.. Reason: moved pics to Sportsterpedia
Reply With Quote
  #815  
Old 4th November 2019
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 7,983
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 7823783
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

60Gunner, I'd be real curious where you would be about now on a slack tube.
Reply With Quote
  #816  
Old 4th November 2019
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 7,983
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 7823783
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 I built a 12" tube box, mounted it by behind the windshield and throttled the feed to it, would the wind create too much pressure on the top of the tube for the readings to be measured?
Would throttling the feed have any change on height?
Reply With Quote
  #817  
Old 4th November 2019
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 10,609
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 3365307
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 the fluttering is related
on occasion, mine will do the same thing
i attribute it to cv flutter.
it occurs mostly when i start up and roll before the temps come up. i am geared diff so mine comes in the 2.5 > 3.5 rpm range and is very noticeable but i can change rpm and it goes away and after awhile it goes away. i also run on the rich side to avoid a high speed lean out so mixture plays a part also. if the machine is running normal temps, better hold on.
Reply With Quote
  #818  
Old 4th November 2019
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 10,609
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 3365307
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

if you have a fly on your dash board and you are doing 60 mph and the fly decides to lift off, why does he not get slammed into the rear window?
Reply With Quote
  #819  
Old 4th November 2019
60Gunner's Avatar
60Gunner 60Gunner is offline
Master Custom Bike Builder
 
Join Date: Sep 2017
Location: United States
Posts: 3,057
Sportster/Buell Model: 1200/1250C
Sportster/Buell Year: 05
Reputation: 3315981
60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute60Gunner has a reputation beyond repute
Default

Quote:
Originally Posted by Hippysmack View Post
60Gunner, I'd be real curious where you would be about now on a slack tube.
*Sigh* I knew that was coming sooner or later.
My idle was noticeably better. I noticed this immediately on start up the very first time. It also revved easier, smoother.
This was just plugging it in the hose right after the horseshoe too. I had previously done away with the hoses and clogged filter and ran open bolts a few days. When the krankvent came I put the hoses back on with just a 3" length going to it and nothing after. This difference was quite noticeable.

Last edited by 60Gunner; 4th November 2019 at 16:39..
Reply With Quote
  #820  
Old 4th November 2019
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 7,983
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 7823783
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 60Gunner View Post
*Sigh* I knew that was coming sooner or later.
My idle was noticeably better. I noticed this immediately on start up the very first time. It also revved easier, smoother.
This was just plugging it in the hose right after the horseshoe too. I had previously done away with the hoses and clogged filter and ran open bolts a few days. When the krankvent came I put the hoses back on with just a 3" length going to it and nothing after. This difference was quite noticeable.
I'm thinking the rear umbrella on mine wasn't opening far enough.
Or maybe it was stuck closed seeing how so little force is exerted outward.
It wasn't hard though.....
For whatever reason, I had more vacuum than with new umbrellas.
Your umbrella doesn't allow any atmosphere to enter, outside of closing time.
I was just wondering how much vacuum you had.
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



All times are GMT +1. The time now is 12:32.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC