Right timing belt looser than left


Information and questions on GL1100 Goldwings (1980-1983)
Post Reply
bofler
Posts: 44
Joined: Thu Aug 22, 2019 9:09 pm
Location: Fort Scott, KS
Motorcycle: 1983 GL1100I

Right timing belt looser than left

Post by bofler »



I've swapped out the belts (the first time for me) and before I put the radiator back on I decided to check them one more time. Everything is lined up and I've run the engine through by hand a bunch of times and seems good. The only problem is that the right belt is always a bit looser. I have brand new Honda springs on the tensioners and I've only let the springs do the tensioning. I also followed the method of turning the engine through half of a cycle and then loosening the right side tensioner to take up the slack. But then when it gets back to where the marks are all lined up the right belt is noticeably looser than the left. Any thoughts on this? Should the belt tension on the pulleys be uniform throughout the cycle of the engine, or does it fluctuate between looser and tighter?

It's not loose enough that it could be moved a tooth, and anyways, I guess that should be impossible if everything is lined up. Just don't want to button everything up before I'm certain that it's done right.



User avatar
DenverWinger
Posts: 1420
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Right timing belt looser than left

Post by DenverWinger »

Belt tensioning is not accomplished by the springs. Their only purpose is to help hold things in place while you are working on it.

The correct way is to put pressure on the tensioners (additional push with your thumb) before you lock them down, correct tension is being able to deflect the middle of the side of the belt that doesn't run on the tensioner by no more than half inch range with 4 lbs pressure.

I've never used a gauge, I just tighten them up until they are good and snug and "Feel Right", and can deflect about a half inch with a moderate wiggle holding belt between finger and thumb. Think serpentine belt on a car.

Too tight and the tensioners will "sing". Too loose and you'll hear the belt flapping around inside the cover.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

indianakid
Posts: 245
Joined: Sun Sep 26, 2010 5:28 pm
Location: United States
Motorcycle: 83 GL1100 I

Re: Right timing belt looser than left

Post by indianakid »

OK................"Belt tensioning is not accomplished by the springs. Their only purpose is to help hold things in place while you are working on it. ".........Unfortunately Mother Honda disagrees with this statement.
Attachments



User avatar
WingAdmin
Site Admin
Posts: 21127
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

Re: Right timing belt looser than left

Post by WingAdmin »

indianakid wrote:
Thu Jun 25, 2020 8:56 pm
OK................"Belt tensioning is not accomplished by the springs. Their only purpose is to help hold things in place while you are working on it. ".........Unfortunately Mother Honda disagrees with this statement.
Correct - the problem is, after 40 years, those springs do not have anywhere near the tension they once did.

The best way to tension them (and the method Honda switched in later manuals) is the deflection method.

indianakid
Posts: 245
Joined: Sun Sep 26, 2010 5:28 pm
Location: United States
Motorcycle: 83 GL1100 I

Re: Right timing belt looser than left

Post by indianakid »

Thanks WingAdmin. Could you please post the the new procedure from the Honda Manual. I have the manual for 1983's and it still shows the method I had posted.

User avatar
WingAdmin
Site Admin
Posts: 21127
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

Re: Right timing belt looser than left

Post by WingAdmin »

indianakid wrote:
Fri Jun 26, 2020 8:19 am
Thanks WingAdmin. Could you please post the the new procedure from the Honda Manual. I have the manual for 1983's and it still shows the method I had posted.
Have a look right here, starting at step 101, where I show the procedure: viewtopic.php?f=14&t=9774



Post Reply