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 1972 Build thread please subscribe
Last Post: Gold Member
Posted On: 36 Minutes Ago
Replies: 67
Views: 3,849
0 Valve Lengths?
Last Post: needspeed
Posted On: 44 Minutes Ago
Replies: 1
Views: 15
0 73 XLH Total Power Loss
Last Post: Erikdowney18
Posted On: 1 Hour Ago
Replies: 6
Views: 118
0 Keep & Kill
Last Post: Crusty
Posted On: 1 Hour Ago
Replies: 17,474
Views: 1,010,288
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 1 Hour Ago
Replies: 19,985
Views: 2,036,045
0 front wheel bearing advice needed
Last Post: IXL2Relax
Posted On: 1 Hour Ago
Replies: 1
Views: 30
0 Do all Harleys miss at idle?
Last Post: Mike1nw
Posted On: 2 Hours Ago
Replies: 0
Views: 33
0 ....1
Last Post: DEEP DIVER
Posted On: 2 Hours Ago
Replies: 5,554
Views: 323,558
0 Cleaning carbon build-up
Last Post: sportsterdoc
Posted On: 3 Hours Ago
Replies: 9
Views: 253
0 2010 sportster LED turn signals load balancer?
Last Post: vt883
Posted On: 3 Hours Ago
Replies: 2
Views: 48
0 2020 east coast meet and greet.
Last Post: commando57
Posted On: 4 Hours Ago
Replies: 91
Views: 8,344
0 Gasket placement
Last Post: Billy1200
Posted On: 4 Hours Ago
Replies: 5
Views: 149
0 XR mutt race bike progress
Last Post: Maxeffort
Posted On: 4 Hours Ago
Replies: 11
Views: 353
0 Info needed on mini sumps.
Last Post: Ferrous Head
Posted On: 5 Hours Ago
Replies: 23
Views: 978
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 5 Hours Ago
Replies: 47,724
Views: 7,638,771
0 This is gonna hurt.
Last Post: Stairman
Posted On: 5 Hours Ago
Replies: 8,119
Views: 1,713,682
0 What oils do you run in your ironhead
Last Post: John Harper
Posted On: 5 Hours Ago
Replies: 89
Views: 12,786
0 Lifters+w cams
Last Post: Folkie
Posted On: 6 Hours Ago
Replies: 9
Views: 619
0 still chasing my engine cutting out hot issue!
Last Post: supermotolew
Posted On: 7 Hours Ago
Replies: 15
Views: 488
0 HF bike lift
Last Post: Highly-Dangerous
Posted On: 8 Hours Ago
Replies: 13
Views: 574
0 What brake upgrade options does 1999 Sportster have? This is what I found!
Last Post: salmanmr
Posted On: 9 Hours Ago
Replies: 22
Views: 1,262
0 Average age of the Ironhead forum users
Last Post: jharback
Posted On: 9 Hours Ago
Replies: 464
Views: 98,731
0 Chasing Down Leaks
Last Post: ericfreeman
Posted On: 10 Hours Ago
Replies: 3
Views: 113
0 Anyone go racing last weekend?
Last Post: rocketmangb
Posted On: 12 Hours Ago
Replies: 3,182
Views: 325,677
0 Food porn
Last Post: Tim The Grim
Posted On: 13 Hours Ago
Replies: 1,971
Views: 377,216
0 Main shaft bearing preferences
Last Post: Heff
Posted On: 13 Hours Ago
Replies: 11
Views: 516
0 Chinese S&S carbs
Last Post: Ferrous Head
Posted On: 14 Hours Ago
Replies: 28
Views: 1,105
0 KT - 2020 - Where Eagles Dare
Last Post: IXL2Relax
Posted On: 14 Hours Ago
Replies: 46
Views: 9,602
0 Tire pressure
Last Post: Ferrous Head
Posted On: 14 Hours Ago
Replies: 8
Views: 249
0 K/n air filter,, and s/s super b long thumb screw bolts
Last Post: doodah man
Posted On: 14 Hours Ago
Replies: 1
Views: 88
More...
Members Birthdays
vt883, Danno, Otis_hd (70), Fisherman (69), New Girl (63), soup (58), motormyk (51), leo, UncleSmitty (43), bryguy1977
Tags
ironhead 1979, pinion gear

Reply
 
Share Thread Tools Display Modes
  #11  
Old 30th January 2019
JSH JSH is offline
Biker
 
Join Date: Jan 2019
Posts: 14
Sportster/Buell Model: XLH
Sportster/Buell Year: 1979
Reputation: 10
JSH is an unknown quantity at this point
Default Excellent. Thank you. Now we are getting somewhere

Okay, no timing on the oil pump - I wondered if that might be the case, but figured it must have some sort of vent window that should be timed to the crankcase.


Timing off the front cylinder - I figured that, too, but when this cam case is set up correctly and the flywheels set with the line in the timing hole (front cylinder at 40 degrees BTDC, and rear cylinder exactly at TDC, also the crankpin is showing in the #2 cam hole), the breaker points cam lobe ends up with it's wide rear cylinder lobe pointing to the right at 3 o'clock, about to break the points, rather than the narrow lobe for the front cylinder. There is only one correct way to install that points plate, so what is going on here?

I would love to post y'all some pictures of the whole thing here, but the page won't let me do it I have some great pics. How do I post them?
Reply With Quote
  #12  
Old 30th January 2019
Toejam503's Avatar
Toejam503 Toejam503 is offline
XL FORUM TEAM MEMBER
 
Join Date: May 2010
Location: Dakota Territory
Posts: 2,919
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: 5709978
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

imgur.com or imgbb.com. Both sites are free.
Reply With Quote
  #13  
Old 30th January 2019
IronMick's Avatar
IronMick IronMick is offline
Rider Of The Iron Steed
 
Join Date: Dec 2003
Location: London, ON Canada
Posts: 32,360
Sportster/Buell Model: XLH
Sportster/Buell Year: 1978
Reputation: 1079207
IronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond reputeIronMick has a reputation beyond repute
Default

https://postimg.org/ is another. Whichever you choose Copy/Paste the IMG code from there to your post here.

Best to avoid PhotoBucket
__________________
Mick
IronHead Forever!

Visit Mick's WebSite
[And Check Out My Autobiog]
Reply With Quote
  #14  
Old 30th January 2019
iNSaNeSHaNe's Avatar
iNSaNeSHaNe iNSaNeSHaNe is offline
XL FORUM TEAM MEMBER
 
Join Date: Apr 2012
Posts: 2,465
Sportster/Buell Model: XLS roadster
Sportster/Buell Year: 1985
Reputation: 1417689
iNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond reputeiNSaNeSHaNe has a reputation beyond repute
Default

I'm trying to go by memory so don't assume i'm correct but ..
If I remember correctly when setting the cams in and all of the marks are lined up the front cylinder is on the overlap 180° out of compression which would explain your issue. My suggestion is roll the engine over and watch the lifters to make sure the intake has just closed coming up on compression then TDC . Then you are in fact timing on the correct stroke and on compression not the overlap.
__________________
IF IT NEVER BREAKS THEN YOU DON'T RIDE IT
Reply With Quote
  #15  
Old 30th January 2019
The Doctor71 The Doctor71 is offline
Land Speed Record
 
Join Date: Mar 2010
Location: Toronto, Ontario
Posts: 794
Sportster/Buell Model: xlch
Sportster/Buell Year: 1971
Sportster/Buell Model #2: xlh
Sportster/Buell Year #2: 1974
Other Motorcycle Model: xl1200cp
Other Motorcycle Year: 2011
The Doctor71 has disabled reputation
Default

Here's a mini step by step on how to post pics from Flickr -->

http://xlforum.net/forums/showpost.p...42&postcount=6
Reply With Quote
  #16  
Old 30th January 2019
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 9,968
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 3254109
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

never say never, seen the mechanism installed incorrectly and also the points backing plate installed wrong, pics are great.
Reply With Quote
  #17  
Old 31st January 2019
JSH JSH is offline
Biker
 
Join Date: Jan 2019
Posts: 14
Sportster/Buell Model: XLH
Sportster/Buell Year: 1979
Reputation: 10
JSH is an unknown quantity at this point
Default Here are the pictures!

and sorry for the delay. You should see all of the photos at this URL.



https://www.flickr.com/gp/167943728@N03/f06tB8
Reply With Quote
  #18  
Old 31st January 2019
chevelle's Avatar
chevelle chevelle is offline
Senior Custom Bike Builder
 
Join Date: Sep 2007
Posts: 2,877
Sportster/Buell Model: Custom Sputhe XR
Sportster/Buell Year: 19**
Sportster/Buell Model #2: XLCH
Sportster/Buell Year #2: 1965
Reputation: 50902
chevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to beholdchevelle is a splendid one to behold
Default

Again,
Rotate engine until slash is in window.
Front cyl must be on compression stroke, tappets down!
Reply With Quote
  #19  
Old 31st January 2019
needspeed needspeed is offline
XL FORUM LIFE MEMBER
 
Join Date: May 2014
Posts: 1,169
Sportster/Buell Model: xlh
Sportster/Buell Year: 1974
Reputation: 435678
needspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond reputeneedspeed has a reputation beyond repute
Default

If all the keys, all the roll pins are there and all the marks line up including the pinion gear to shaft marks then it HAS TO BE RIGHT.

Your pictures show everything correct but it's not on the compression stroke. For the ignition timing rotate the crankshaft one more turn, put the flywheel mark in the hole and the narrow lobe will be facing the points like it should be.

When you're on the right stroke the notch on #2 cam points to about 11 o'clock with the mark in the timing hole. Like in the left side of this picture.

http://xlforum.net/forums/showpost.p...8&postcount=14

You continue to reference the flywheel position as it relates to the cam timing. You shouldn't be doing that. The mark on the pinion gear is doing that for you. So forget flywheel and piston position. Just put the cams in with all the marks aligned.

One of your pictures is Labeled: "crankpin viewed through #2 cam bearing hole at 40 degress BTDC on compression stroke." Again, it doesn't matter where it is, but how can that even be? There are no cams installed to establish where the compression stroke is.

In another thread you rightly figure that the pinion gear being installed 2 splines off on a six spline shaft is a 120° error. That would be 120 crankshaft degrees because the pinion turns the same as the crank. It would be 60° at the cams.

It's possible that has created another problem for you because the engine was rotated like that.

When the cam timing is correct with stock cams the intake valve opens to just over half its total lift when the piston is at TDC. By starting it's opening 120° early the valve would go to full lift at TDC. So if the valve was supposed to open at 35° BTDC it would then start to open at 155° BTDC. If there isn't plenty of piston to valve clearance the piston could hit and bend the valve.

I'm not saying it did, but if you get the cam case sorted out and the engine runs like crap that may be an issue. A compression test may be needed.

Good luck.
Reply With Quote
  #20  
Old 1st February 2019
JSH JSH is offline
Biker
 
Join Date: Jan 2019
Posts: 14
Sportster/Buell Model: XLH
Sportster/Buell Year: 1979
Reputation: 10
JSH is an unknown quantity at this point
Default Thank you!

That was the best and most professional answer I have seen

You da man
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 18:41.


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