The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Era Specific and Model Specific > Ironhead Sportster Motorcycle Talk (1957-1985)
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

Active Threads
0 Sportster Oil Pressure and Dynamics
Last Post: Hippysmack
Posted On: 7 Minutes Ago
Replies: 166
Views: 8,114
0 1981 XLH Getting Recranked
Last Post: owlsplace
Posted On: 8 Minutes Ago
Replies: 91
Views: 4,105
0 DK Customs external Breather catch can location help
Last Post: tvon
Posted On: 8 Minutes Ago
Replies: 2
Views: 60
0 Motoscope mini tach/speedo visor install - '08 1200L
Last Post: FrijjMagnet
Posted On: 13 Minutes Ago
Replies: 53
Views: 26,544
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 27 Minutes Ago
Replies: 54,405
Views: 9,250,332
0 Keep & Kill
Last Post: Graywolf
Posted On: 45 Minutes Ago
Replies: 29,183
Views: 1,701,758
0 Round Air Cleaner Poll
Last Post: BSA Bob
Posted On: 48 Minutes Ago
Replies: 357
Views: 84,274
0 A different Oil filter test
Last Post: FiftySixer
Posted On: 55 Minutes Ago
Replies: 14
Views: 3,191
0 Factory Chain Oiler
Last Post: bustert
Posted On: 1 Hour Ago
Replies: 13
Views: 335
0 Clutch Stud Spacer: 1.530" pn #5995, 0.040" #5996, 0.080" #5997
Last Post: bustert
Posted On: 1 Hour Ago
Replies: 4
Views: 164
0 What did you do for your sporty Today?
Last Post: ChinCactus
Posted On: 1 Hour Ago
Replies: 7,990
Views: 1,448,376
0 video & pics
Last Post: cal43
Posted On: 1 Hour Ago
Replies: 1,383
Views: 141,127
0 This is gonna hurt.
Last Post: cal43
Posted On: 1 Hour Ago
Replies: 9,594
Views: 2,315,436
0 Bike issue after swapping handlebar. :(
Last Post: slonez
Posted On: 2 Hours Ago
Replies: 20
Views: 472
0 Rubbermount Poll
Last Post: Ireeman
Posted On: 2 Hours Ago
Replies: 263
Views: 92,661
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 2 Hours Ago
Replies: 36,925
Views: 4,568,655
0 Hot Rods, Rat Rods, and Customs.
Last Post: cal43
Posted On: 5 Hours Ago
Replies: 5,247
Views: 1,151,928
0 Hot Chicks on Hot Bikes
Last Post: cal43
Posted On: 5 Hours Ago
Replies: 13,121
Views: 3,300,167
0 Slip on muffler
Last Post: Tyler45
Posted On: 9 Hours Ago
Replies: 242
Views: 86,563
0 This week on Craig's list
Last Post: Tim The Grim
Posted On: 10 Hours Ago
Replies: 5,440
Views: 933,987
0 pop's through carb at,idle
Last Post: IXL2Relax
Posted On: 10 Hours Ago
Replies: 15
Views: 4,969
0 Transmission lube- how
Last Post: Tomcatt
Posted On: 11 Hours Ago
Replies: 1
Views: 73
0 All balls generator
Last Post: Captain Johnny
Posted On: 12 Hours Ago
Replies: 3
Views: 183
0 oil filterchoices
Last Post: rwharris
Posted On: 12 Hours Ago
Replies: 26
Views: 1,121
0 oil light flickering
Last Post: andy2175m4
Posted On: 13 Hours Ago
Replies: 8
Views: 116
0 VIeds advice...
Last Post: 1Scooter
Posted On: 14 Hours Ago
Replies: 4
Views: 163
0 Gas Cap problem?
Last Post: ZTatZAU
Posted On: 14 Hours Ago
Replies: 50
Views: 1,831
0 Front Brake Pads
Last Post: Chuckthebeatertruck
Posted On: 18 Hours Ago
Replies: 8
Views: 127
0 Installing Thunder Torque Inserts™ - More Torque - Deeper Tone - Dyno Proven
Last Post: DK Custom
Posted On: 18 Hours Ago
Replies: 0
Views: 44
0 1250 kit with mikuni and 560 hammer cams
Last Post: FiftySixer
Posted On: 19 Hours Ago
Replies: 15
Views: 2,162
More...
Members Birthdays
Nytstr (74), mccudden2 (57), willy (53), NHMike, xl1200boost (42), DRN (40)
Reply
 
Share Thread Tools Display Modes
  #161  
Old 18th September 2021
RicThompson RicThompson is offline
Senior Chief Harley Engineer
 
Join Date: Sep 2019
Posts: 1,015
Sportster/Buell Model: XLH
Sportster/Buell Year: 1969
Other Motorcycle Model: 111 Ironhorse Outlaw
Other Motorcycle Year: 2004
Reputation: 650495
RicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond reputeRicThompson has a reputation beyond repute
Default

I can't begin to remember how many years I used plastic milk crates to work on bikes. I have a floor jack now. An actual lift would be way too professional for me. Make me think I was employed again. lol
Reply With Quote
  #162  
Old 18th September 2021
Gold Member's Avatar
Gold Member Gold Member is offline
Flat Track Champion
 
Join Date: Nov 2017
Posts: 671
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1972
Reputation: 131839
Gold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud of
Default

Never even thought of milk crates. They're 12 in high though. I scavenged some cinder blocks from a dump a month ago. That will get me up 16" and be easier to go straight in with the trans while sitting down comfortably.

I bought some big screw eyes for the ceiling and next need some Harbor Freight tie straps to keep the bike from tipping off the blocks. The big jack I have lifts with 1/2" or so to spare, so that will work.

Right now the car is in the shop for the past week needing an A/C pump. I'd simply bypass it but they can't find a belt short enough. Just the pump alone is $850 for a hoopy Scion. A blown A/C pump clutch bearing will disable the car from even starting and make a loud as hell howl before it gives up. I could feel the vibration through the floorboards and steering wheel. When the bearing locks up it spins on the nose cone of the pump, wrecking it. It puts enough force on the belt to stall the motor.

My wife is really good about me spending money on the Sportster because she loves riding. It's me that is noogy about it.

Also need a new computer. A new artesian well pump would be nice. $3600. It still works but I don't feel we should rely on it at it's age. Probably will spend money on the bike before the well pump
__________________
Stop by my build thread:

[url]http://xlforum.net/forums/showthread.php?t=2076933[/url]


Four wheels move the body. Two wheels move the soul. Three wheels move the bowels.
Reply With Quote
  #163  
Old 19th September 2021
wedge's Avatar
wedge wedge is offline
XL FORUM TEAM MEMBER
 
Join Date: Jun 2010
Posts: 12,279
Sportster/Buell Model: 1200R
Sportster/Buell Year: 2005
Other Motorcycle Model: 5 bikes and 1 quad
Reputation: 7937118
wedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond repute
Default

Quote:
Originally Posted by Gold Member View Post
Never even thought of milk crates. They're 12 in high though. I scavenged some cinder blocks from a dump a month ago. That will get me up 16" and be easier to go straight in with the trans while sitting down comfortably.

I bought some big screw eyes for the ceiling and next need some Harbor Freight tie straps to keep the bike from tipping off the blocks. The big jack I have lifts with 1/2" or so to spare, so that will work.

Right now the car is in the shop for the past week needing an A/C pump. I'd simply bypass it but they can't find a belt short enough. Just the pump alone is $850 for a hoopy Scion. A blown A/C pump clutch bearing will disable the car from even starting and make a loud as hell howl before it gives up. I could feel the vibration through the floorboards and steering wheel. When the bearing locks up it spins on the nose cone of the pump, wrecking it. It puts enough force on the belt to stall the motor.

My wife is really good about me spending money on the Sportster because she loves riding. It's me that is noogy about it.

Also need a new computer. A new artesian well pump would be nice. $3600. It still works but I don't feel we should rely on it at it's age. Probably will spend money on the bike before the well pump
I can't remember the last time I even saw a cinder block. Probably back in the early 50's. Nobody uses them these days because they break too easy compared to concrete blocks. Note: if you really do have cinder blocks, do not use them to support anything that you plan to get under because they will break and leave you pinned under the bike.
__________________
A Biker is not just any guy who rides... that's a motorist.
A guy that gets up and rides again after every crash... that's a Biker.

Whitworth Fork Brace: http://xlforum.net/forums/m...outme&simple=1
Reply With Quote
  #164  
Old 21st September 2021
Gold Member's Avatar
Gold Member Gold Member is offline
Flat Track Champion
 
Join Date: Nov 2017
Posts: 671
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1972
Reputation: 131839
Gold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud of
Default

Quote:
Originally Posted by wedge View Post
I can't remember the last time I even saw a cinder block. Probably back in the early 50's. Nobody uses them these days because they break too easy compared to concrete blocks. Note: if you really do have cinder blocks, do not use them to support anything that you plan to get under because they will break and leave you pinned under the bike.
Thanks I checked them. They are concrete. You can tell by weighing them. Cinder is 28 lbs and concrete is 40 lbs.

My Dad always called them cinder blocks growing up, so that's why I called them that.
Reply With Quote
  #165  
Old 24th September 2021
wedge's Avatar
wedge wedge is offline
XL FORUM TEAM MEMBER
 
Join Date: Jun 2010
Posts: 12,279
Sportster/Buell Model: 1200R
Sportster/Buell Year: 2005
Other Motorcycle Model: 5 bikes and 1 quad
Reputation: 7937118
wedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond repute
Default

Quote:
Originally Posted by Gold Member View Post
Thanks I checked them. They are concrete. You can tell by weighing them. Cinder is 28 lbs and concrete is 40 lbs.

My Dad always called them cinder blocks growing up, so that's why I called them that.
Yes, they were a dark specked charcoal gray color and very light (as a kid I liked carrying them better than concrete ones). Your dad was most likely around when they still existed. They were never structural, they were always for landscaping or building sheds for animals as I remember.
Reply With Quote
  #166  
Old 15th January 2022
DR DICK's Avatar
DR DICK DR DICK is offline
Senior Master Custom Bike Builder
 
Join Date: Jan 2010
Posts: 6,506
Reputation: 472040
DR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond reputeDR DICK has a reputation beyond repute
Default

Quote:
Originally Posted by wedge View Post
If Dr Dick reads this, maybe he will let us know what it is about ball bearings that is desirable.

this is kind of difficult to explain but i will do my best.


this is common, focusing on the bearing type rather than the system that it's installed in.


Headshake doesn't come from loose or tight neck bearings on 81<.

It's pretty rare on 79 to 81 because of the swing arm is so much stiffer.
Traditionally proven many times over the head shake comes from the rear to bike, not the front.
That being what it is let's ignore the inability of the hd chassis to keep the tire contact paches under control and just go through bearing question.

In a perfect world the two bores in the frame neck would be perfectly aligned.
In which two perfectly manufactured outer bearings would be inserted.
then there would be an axle (or stem if you will) that carry the inner bearings perfectly aligned on its centerline.
You put these two things together and your world is happy.

The reality is hd really didn't align the two bores.
Instead they use the bottom bearing as Ground Zero.
then they made a compensating coupling.
This coupling resided at the top bearing interface.

in order for this misalignment to be compensated for a spherical coupling is used at the upper bearing cone and the bearing adjusting nut.

This this coupling is not be recreated correctly with the timkin setup.
that Leads do a disconnect from the handlebars to the road.

The connection from your hands, feet, and ass to the road is extremely important on a motorcycle.
That and your tires feedback is what keeps you alive.

any drag or salt racer will tell:
"even if I welded the triple trees solid to the frame this bike would still shake on deceleration".

its not a bearing issue when it comes to unwanted contact patch forces.
its harmonics backfed ino the structure.
__________________
D.D._____________________________-o&o____________________________
Reply With Quote
  #167  
Old 15th January 2022
Gold Member's Avatar
Gold Member Gold Member is offline
Flat Track Champion
 
Join Date: Nov 2017
Posts: 671
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1972
Reputation: 131839
Gold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud ofGold Member has much to be proud of
Default

Holy cow thanks!

I've got new swing arm bearings installed (correctly) too.

Hopefully it'll go in a straight line.
Reply With Quote
  #168  
Old 16th January 2022
wedge's Avatar
wedge wedge is offline
XL FORUM TEAM MEMBER
 
Join Date: Jun 2010
Posts: 12,279
Sportster/Buell Model: 1200R
Sportster/Buell Year: 2005
Other Motorcycle Model: 5 bikes and 1 quad
Reputation: 7937118
wedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond reputewedge has a reputation beyond repute
Default

Yes. Thanks. I see your point about ball bearings being able to compensate better for misaligned outer races.

I had forgotten this post, so I had to go back to see what we were talking about. ;-)

I did know back then that the rear is a good source for the shake. I put new swing arm bushings (I think they are bushings, this was about 40 years ago) on that bike and replaced both sets of wheel bearings. Spent a long time measuring and getting everything as aligned as possible. It still had the harmonic shake at around 50 - 55 MPH accelerating and decelerating that it came with from the factory but the big headshake never returned. I still have the 78 Honda, but it hasn't been ridden since 08.

Thanks for the info, it makes a lot of sense.
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 15:19.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC