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

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

Active Threads
0 signature pic
Last Post: Nibelungen
Posted On: 21 Minutes Ago
Replies: 20
Views: 169
0 Trans/Year Interchangeability Question
Last Post: harley506d
Posted On: 40 Minutes Ago
Replies: 152
Views: 4,722
12 POLL: How many times have you dropped a motorcycle?
Last Post: duffy
Posted On: 1 Hour Ago
Replies: 686
Views: 121,163
0 ....1
Last Post: Highly-Dangerous
Posted On: 1 Hour Ago
Replies: 5,078
Views: 299,878
0 Seeking advice on shorter rear shocks
Last Post: Highly-Dangerous
Posted On: 1 Hour Ago
Replies: 28
Views: 1,243
3 Wtb, Wts, Wtt, Wtg (Ironhead)
Last Post: Jaykel
Posted On: 1 Hour Ago
Replies: 44
Views: 243,732
0 What brand synthetic oil do you use
Last Post: glbsportster
Posted On: 2 Hours Ago
Replies: 444
Views: 112,156
0 Keep & Kill
Last Post: Crusty
Posted On: 3 Hours Ago
Replies: 15,246
Views: 855,850
0 What engine oil do you use?
Last Post: Highly-Dangerous
Posted On: 3 Hours Ago
Replies: 471
Views: 97,246
0 big bore kit
Last Post: rocketmangb
Posted On: 3 Hours Ago
Replies: 13
Views: 185
0 Indian FTR Sales
Last Post: duffy
Posted On: 4 Hours Ago
Replies: 6
Views: 223
0 1970 XLCH Cases - Blown Trans Corner
Last Post: savagegarden
Posted On: 4 Hours Ago
Replies: 6
Views: 304
0 One sooty spark plug and one completely clean
Last Post: doodah man
Posted On: 4 Hours Ago
Replies: 17
Views: 506
0 Ironhead Oil Pump Gurus, come inside.
Last Post: Ferrous Head
Posted On: 5 Hours Ago
Replies: 63
Views: 5,536
0 This is gonna hurt.
Last Post: Graywolf
Posted On: 5 Hours Ago
Replies: 7,919
Views: 1,617,533
0 It's stalkie's Birthday!
Last Post: priell3
Posted On: 5 Hours Ago
Replies: 5
Views: 76
0 Oil, Filters and Spark Plugs
Last Post: rocketmangb
Posted On: 6 Hours Ago
Replies: 49
Views: 2,148
0 520 conversion for ironheads
Last Post: kitabel
Posted On: 7 Hours Ago
Replies: 16
Views: 852
0 ARCH motorcycles and more
Last Post: RDHenley
Posted On: 7 Hours Ago
Replies: 10
Views: 420
0 Un-lowering my Super Low
Last Post: wedge
Posted On: 7 Hours Ago
Replies: 3
Views: 178
0 Your Motorcycle Workspace/Garage
Last Post: boomerguy
Posted On: 7 Hours Ago
Replies: 18
Views: 615
0 A Day in the Life...
Last Post: RDHenley
Posted On: 7 Hours Ago
Replies: 680
Views: 85,174
0 Hack or trike?
Last Post: kitabel
Posted On: 8 Hours Ago
Replies: 16
Views: 549
0 Friction modifiers in gasoline
Last Post: RDHenley
Posted On: 8 Hours Ago
Replies: 37
Views: 2,844
4 Another Bogan from the South Seas
Last Post: Kbetts
Posted On: 10 Hours Ago
Replies: 15
Views: 229
0 '59 XLH - Speedo cable route
Last Post: Guidorey
Posted On: 11 Hours Ago
Replies: 0
Views: 50
0 You asked for it! "The Tess' Coffee Thread"
Last Post: sportsterpaul
Posted On: 11 Hours Ago
Replies: 10,970
Views: 941,742
7 Oldest Motorcycle You've Owned
Last Post: waiteitei
Posted On: 12 Hours Ago
Replies: 92
Views: 6,025
0 Roads I'd like to ride.
Last Post: Highly-Dangerous
Posted On: 13 Hours Ago
Replies: 2,767
Views: 240,468
0 Show your favorite pic of your bike. just one
Last Post: hammer6315
Posted On: 14 Hours Ago
Replies: 4,748
Views: 1,823,931
More...
Members Birthdays
buddy (66), paulrainer (66), Pedrochellie, needweknow, BunnMan (48), SolariS (43), Doc69 (39), ftptptt1234 (39), dumbmxer84 (36), nhutch40 (28), XLButler (21), Ztomasc (21)
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #51  
Old 6 Days Ago
11B40 11B40 is offline
XL FORUM TEAM MEMBER
 
Join Date: Dec 2008
Posts: 934
Reputation: 47192
11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold11B40 is a splendid one to behold
Default

Quote:
Originally Posted by RicThompson View Post
Glad you mentioned tubing being inserted down from the top. The oil return hole is 3/16 which means hole must be drilled oversize to fit tube in. Why is it down from top when drilling from bottom would be much easier?
You can go to a modeling shop and buy tubing in many sizes. It is much thinner material. An exact fit can be reached this way. Using regular copper tube is putting in very thick material into the hole. The upper hole doesn't need to be absolutely sealed, as mentioned before, lots of splash is going in there anyway.
Reply With Quote
  #52  
Old 6 Days Ago
OttoOtto OttoOtto is offline
Biker
 
Join Date: Nov 2019
Posts: 2
Sportster/Buell Model: xlch
Sportster/Buell Year: 1968
Sportster/Buell Model #2: 1968 Sportster
Sportster/Buell Year #2: 1970
Other Motorcycle Model: 2004 Custom Pro Street
Other Motorcycle Year: 2004
Reputation: 10
OttoOtto is an unknown quantity at this point
Default Cylinder Oil Hole lowering for stroker

If the upper hole is not completely sealed the oil will come in the cylinder above the oil ring which would cause motor to smoke right? Even if you flared the top end of the tubing after the oil flows down to the lowered hole isn't it possible for the oil to try to back up in the tube and if the tube isn't a tight fit going past the upper hole oil could get in the upper hole and above oil ring. I am getting ready to lower my holes and would prefer not to braze cast iron. I have done a few strokers years ago always brazed but always a chance of repercussions from all that heat even with preheating and such. I'm glad someone brought this up. I'm not experienced like a lot of you so I'm looking for a cleaner less crude way to lower the holes and plug the upper ones without failures. Thank You!
Reply With Quote
  #53  
Old 6 Days Ago
OttoOtto OttoOtto is offline
Biker
 
Join Date: Nov 2019
Posts: 2
Sportster/Buell Model: xlch
Sportster/Buell Year: 1968
Sportster/Buell Model #2: 1968 Sportster
Sportster/Buell Year #2: 1970
Other Motorcycle Model: 2004 Custom Pro Street
Other Motorcycle Year: 2004
Reputation: 10
OttoOtto is an unknown quantity at this point
Default Cylinder Oil Hole lowering for stroker

Quote:
Originally Posted by Iron Mike View Post
I have seen both the epoxy and the brazing. seems the epoxy is much more commonplace nowadays. Also have seen the 3/16 tubing inserted down through the cyls.

Thanks to those that shared their past break in procedures.
2 years ago I let a machinist lower the oil holes for my Stroker, put tubes in then plugged upper hole with JB weld, woops motor started smoking out both cylinders, JB weld came out of one hole in each cylinder but stayed in two holes. All the other strokers I built I brazed the holes I don't like to braze them but I should have. Anyway maybe J-B Weld was the wrong thing to use maybe there's better epoxies out there but anyway just my one experience with epoxy. Thanks to everyone on this forum lots of good information
Reply With Quote
  #54  
Old 5 Days Ago
MDT's Avatar
MDT MDT is offline
Senior Custom Bike Builder
 
Join Date: Jul 2006
Location: Northern Colorado
Posts: 2,536
Sportster/Buell Model: XLCH
Sportster/Buell Year: 61
Other Motorcycle Model: Superglide
Other Motorcycle Year: 74
Reputation: 649699
MDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond reputeMDT has a reputation beyond repute
Default

I have done the brass tubing, flared at the top, going into the case. I did not plug the cylinder holes. It worked fine.
Now I am running external returns It works also
If you need to plug the hole in your cylinder silver solder will work at a much lower temperature.
__________________
When you sit on something, you built from parts;
You're sitting on top of the world.
Reply With Quote
Sponsored Links
  #55  
Old 5 Days Ago
RicThompson RicThompson is offline
Flat Track Racer
 
Join Date: Sep 2019
Posts: 224
Sportster/Buell Model: XLH
Sportster/Buell Year: 1969
Other Motorcycle Model: 111 Ironhorse Outlaw
Other Motorcycle Year: 2004
Reputation: 11161
RicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of light
Default

Quote:
Originally Posted by Nitro57xl View Post
It's done from the top because it's very hard to pick up the right angle from the bottom, also the original drilling varies ? If you drill from the bottom and you miss the intersection with the hole from the top you won't be happy?
Yesterday I grabbed an old cylinder off my shelf and using a 1/8 drill bit I drilled from the top all the way through the bottom. Now if I used a 1/4 drill bit and drilled from the bottom just past the oil return hole I could use a much shorter 3/16 tube from the bottom. Then drill my new lower return holes. I could even tap the bottom for a set screw to keep tube in place and stop oil instead of just relying on the base gasket. Thoughts?

Last edited by RicThompson; 5 Days Ago at 17:45.. Reason: clarification on set screw purpose
Reply With Quote
  #56  
Old 5 Days Ago
spacecoast spacecoast is offline
Chief Harley Engineer
 
Join Date: Mar 2011
Location: Brevard Count, Fl.
Posts: 503
Sportster/Buell Model: 883
Sportster/Buell Year: 1989
Reputation: 186679
spacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant futurespacecoast has a brilliant future
Default

Quote:
Originally Posted by RicThompson View Post
YI could even tap the bottom for a set screw to keep tube in place and stop oil. Thoughts?
Stop the oil from draining from the top? You'll be smoking in no time.
Reply With Quote
  #57  
Old 5 Days Ago
RicThompson RicThompson is offline
Flat Track Racer
 
Join Date: Sep 2019
Posts: 224
Sportster/Buell Model: XLH
Sportster/Buell Year: 1969
Other Motorcycle Model: 111 Ironhorse Outlaw
Other Motorcycle Year: 2004
Reputation: 11161
RicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of lightRicThompson is a glorious beacon of light
Default

Quote:
Originally Posted by spacecoast View Post
Stop the oil from draining from the top? You'll be smoking in no time.
Apparently you missed the part about inserting shorter tube from bottom. The set screw would be in the cylinder base. Yes the whole idea is to have oil return from heads into crankcase.
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 08:29.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC