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 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 1 Minute Ago
Replies: 51,122
Views: 8,527,065
0 Transformer XR1200
Last Post: sportsterpaul
Posted On: 9 Minutes Ago
Replies: 547
Views: 72,214
0 Keep & Kill
Last Post: Graywolf
Posted On: 33 Minutes Ago
Replies: 22,840
Views: 1,360,355
0 Pop-up gas caps
Last Post: Cablejudge
Posted On: 49 Minutes Ago
Replies: 8
Views: 200
2 Missing hand control screws
Last Post: Andy56
Posted On: 1 Hour Ago
Replies: 8
Views: 186
14 A LED turn signals & load balancer how-to.
Last Post: Fifty150
Posted On: 3 Hours Ago
Replies: 175
Views: 108,693
0 Which Battery?
Last Post: Fifty150
Posted On: 3 Hours Ago
Replies: 86
Views: 26,579
0 i'm being the subject of censorship
Last Post: Fifty150
Posted On: 4 Hours Ago
Replies: 12
Views: 335
0 Hammer 1275 clang noise, slow oil feed, kinked crankcase vent.
Last Post: Hippysmack
Posted On: 4 Hours Ago
Replies: 1,288
Views: 69,272
0 Happy Birthday kkbii!
Last Post: Hippysmack
Posted On: 5 Hours Ago
Replies: 6
Views: 153
0 Another oil mist problem & slobber stoppers
Last Post: Hippysmack
Posted On: 6 Hours Ago
Replies: 29
Views: 3,253
0 Having trouble finding bolts
Last Post: Hopper
Posted On: 6 Hours Ago
Replies: 6
Views: 271
0 Do people notice your bike?
Last Post: hammer6315
Posted On: 6 Hours Ago
Replies: 1,274
Views: 380,060
0 How many racers are left ?
Last Post: drgonzo21
Posted On: 6 Hours Ago
Replies: 15
Views: 450
0 Anyone go racing last weekend?
Last Post: Iron Mike
Posted On: 8 Hours Ago
Replies: 3,311
Views: 366,632
0 primary chain adjuster install 1995 1200
Last Post: Pappa G
Posted On: 8 Hours Ago
Replies: 4
Views: 66
0 Battery Fuse Stray Voltage
Last Post: SaddleBronc
Posted On: 8 Hours Ago
Replies: 6
Views: 213
0 Troubles with tach, ignition or valve float?
Last Post: IXL2Relax
Posted On: 9 Hours Ago
Replies: 22
Views: 1,077
0 Iree's late night cafe
Last Post: ~Grind~
Posted On: 9 Hours Ago
Replies: 1,938
Views: 304,638
0 HT leads for 79 ironhead ?
Last Post: Uberstorm
Posted On: 10 Hours Ago
Replies: 0
Views: 43
0 Issues with Hammer 1275 kit
Last Post: Hippysmack
Posted On: 10 Hours Ago
Replies: 66
Views: 1,929
0 Front Top Motor Mount
Last Post: Ferrous Head
Posted On: 11 Hours Ago
Replies: 2
Views: 110
0 Best Carb for an Ironhead?
Last Post: Ferrous Head
Posted On: 11 Hours Ago
Replies: 52
Views: 2,519
14 Harley-Davidson Sportster S. Right For You?
Last Post: Tomcatt
Posted On: 12 Hours Ago
Replies: 15
Views: 530
5 Lefty bearing clearance?
Last Post: bustert
Posted On: 12 Hours Ago
Replies: 18
Views: 958
0 Hiccup out carb , tried everything I can think of
Last Post: brucstoudt
Posted On: 14 Hours Ago
Replies: 11
Views: 478
0 Extended fork tubes and low speed handling
Last Post: jsandidge
Posted On: 14 Hours Ago
Replies: 9
Views: 446
0 Hello from Canada
Last Post: sprink
Posted On: 14 Hours Ago
Replies: 16
Views: 271
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 15 Hours Ago
Replies: 30,146
Views: 3,383,434
10 Hammerized 1275 and the bike rips hard!
Last Post: xena
Posted On: 18 Hours Ago
Replies: 21
Views: 2,156
More...
Members Birthdays
Sourmug, UberXY (68), bsndscrn, caput001 (65), thunderrod (58), justdrew (55), wareagle0775 (46), blue (41), hellbilly713 (38), TiBaal89 (37), DWilliam (32)
Tags
engine noise, knocking, new build

Reply
 
Share Thread Tools Display Modes
  #1  
Old 13th July 2013
jrwca's Avatar
jrwca jrwca is offline
Flat Track Racer
 
Join Date: Feb 2008
Posts: 211
Sportster/Buell Model: XL 883 Deluxe
Sportster/Buell Year: 1991
Reputation: 83
jrwca is an unknown quantity at this point
Default Noise after rebuild

Hey everyone, it's been a while. Three years to be exact. July of 2010, I snapped my pinion shaft and started rebuilding my bike. Two states, two jobs and four houses later, I finally caught a little time to put her back together. I went from bare frame to complete bike over the past couple of weeks (spare parts are normal, right?).

I just finished up getting her ready for the road and fired it up. She started right up and was sounding good. But as I listen more, I have some noise that sounds like it's coming from the right side in the cam box.

Using my trusty rubber hose, I noticed that the sound is really evident at the nose cone (with the cover off). It sounds like a high pitch metal-on-metal pinging. I don't notice it on the left side of the bike and it's definitely muted everywhere else on the cam cover.

When I rebuilt the engine, I had a reputable shop in Orange County recondition a set of used 1200 flywheels and clean up the lower end. They installed all new bushings and line reamed the cam bushings. I reamed the wrist pin bushings myself using the Jims tools.

I installed a new set of N4 cams, valves and valve seals during the install. Just prior to the breakdown, I had rebuilt the transmission and installed several new parts including an oil pump, pushrods, lifters and rocker bushings. I am using the old pistons and rings (for now).

Any ideas what it might be? I'm planning to open it back up, but I'm really not sure what would make the sound I'm hearing.

Is it possible the pistons and valves are making contact and the noise is translating down into the cam box?

I'm gonna check to see if it's only happening when the engine's hot, but would appreciate any thoughts.
Reply With Quote
  #2  
Old 13th July 2013
Bob s hog's Avatar
Bob s hog Bob s hog is offline
Senior Custom Bike Builder
 
Join Date: May 2011
Location: spencerville
Posts: 2,611
Sportster/Buell Model: sportster
Sportster/Buell Year: 2003
Sportster/Buell Model #2: 1200 xl sportster custom
Sportster/Buell Year #2: 03
Other Motorcycle Model: 1200 low sportster
Other Motorcycle Year: 06
Reputation: 48979
Bob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to beholdBob s hog is a splendid one to behold
Default

please don't run it any more take the cam cover off and check to see whats wrong did you get the right side cover gaskit theres two different ones . id take a good look befor all that money you put in it get pissed away.
Reply With Quote
  #3  
Old 13th July 2013
jrwca's Avatar
jrwca jrwca is offline
Flat Track Racer
 
Join Date: Feb 2008
Posts: 211
Sportster/Buell Model: XL 883 Deluxe
Sportster/Buell Year: 1991
Reputation: 83
jrwca is an unknown quantity at this point
Default

Ended up tearing it open this morning.

Seems the nut on the pinion shaft came loose. Not sure how that happened. I installed all that three years ago, so I don't know if I messed up torquing it or what.

Cleaned it back up and retorqued it with red Loctite. Unfortunately, it chewed up the bushing in the cam cover. Going to change the oil after replacing that bushing and try to get out any bits of the old bushing I can.
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 11:39.


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