TAKE A DARN PIC TO COMPARE!
Well, THAT'S more like it.
Before:
After....THAT'S more like it!
Cam timing....when triple checking isn't enough.
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SteveB123
- Posts: 842
- Joined: Thu Apr 05, 2012 9:29 am
- Location: Winchester, Ontario, Canada
- Motorcycle: 1982 1100I, 60A Poorboy, MSD coil
Cam timing....when triple checking isn't enough.
Recently changed the belts and rebuilt the idler bearings /forum/viewt ... 11&t=10919 on my new-to-me 81 Interstate, and managed to get it started....boy did it sound like crap.....too far off for just a bad carb sync, the whole rhythm of the engine was just....off. I recall reading either here or on NGW about really getting your face down directly in front of the timing gears to check the alignement of the gear marks.....sure wish I had the first, second or third time I checked them before I buttoned everything up. To me, (obviously, on an angle) they looked like they were 1/2 a tooth off, but what could I do about a half a tooth?
TAKE A DARN PIC TO COMPARE!
Well, THAT'S more like it.
Before: Quite obvious now that it was a tooth off.....but before i took the pic, I must have been looking at it on an angle, and it looked ok!
After....THAT'S more like it! Get your face right in front of them, or take a pic with the camera DIRECTLY in front of the cam marks.
TAKE A DARN PIC TO COMPARE!
Well, THAT'S more like it.
Before: Quite obvious now that it was a tooth off.....but before i took the pic, I must have been looking at it on an angle, and it looked ok!
After....THAT'S more like it! Get your face right in front of them, or take a pic with the camera DIRECTLY in front of the cam marks.
Current:82 GL1100 Interstate, 60 Amp Poorboy, MSD coil
Previous: 93 GSX1100F Katana
82 GL500 Silverwing
Previous: 93 GSX1100F Katana
82 GL500 Silverwing
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virgilmobile
- Posts: 9102
- Joined: Sun Sep 19, 2010 5:39 pm
- Location: Denham Springs,La.
- Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I
Re: Cam timing....when triple checking isn't enough.
Amazing how the eye can deceive. 
This is really a thing good to look at.
I do know a wing will run,although poorly,with one tooth off.Been there too.
I guess it's all in the details.
Good catch and a great job too.
This is really a thing good to look at.
I do know a wing will run,although poorly,with one tooth off.Been there too.
I guess it's all in the details.
Good catch and a great job too.
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WingAdmin
- Site Admin
- Posts: 23864
- Joined: Fri Oct 03, 2008 4:16 pm
- Location: Strongsville, OH
- Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (sold)
1998 XV250 Virago (sold)
2012 Suzuki Burgman 400 (wife's!)
2007 Aspen Sentry Trailer - Contact:
Re: Cam timing....when triple checking isn't enough.
Yeah, the parallax between the pulley marks and the case marks can cause exactly that problem. Even more so on the engine crank, where there is more distance between the marks. You really need to get your head right down there even with the marks.