1983, 1100I timing belt replacement


Information and questions on GL1100 Goldwings (1980-1983)
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arseatea
Posts: 36
Joined: Wed Feb 22, 2017 10:37 am
Location: Beavercreek Ohio
Motorcycle: 1983 GL1100I Interstate

1983, 1100I timing belt replacement

Post by arseatea »



I was watching a video on Youtube and one guy put a 17mm socket and welders clamp to hold his cams in place while he changed his belts. Others did not. I did not have a clamp that would work, so I did not. After lining up all the markers and removing the belt adjuster, (I guess that is what they call it), pressure from the right valve springs moved the right cam cw about 15 degrees. The left side stayed on mark. I can move the cam ccw with a 12 mm wrench and clamp it but not sure if that is what I should do as pressure wants to move it cw to the 15 degree location. I started the engine before breaking it down, so I am pretty sure that the timing was correct. I am not sure what to do at this point. Can you help... Should I force it back, clamp it and install the belt or is there another problem that I am unaware of ...Thanks..arseatea


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virgilmobile
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Motorcycle: 1988 GL1500 I
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Re: 1983, 1100I timing belt replacement

Post by virgilmobile »

Just turn it back where it was.
DO NOT use the starter to crank the bike right away.
Hand turn the engine a couple of revolutions first.Recheck all the belt timing marks and tension.
Hand turning will not bend a valve should you get the belt on wrong.
Double check the marks for the third time then you can crank it up.
arseatea
Posts: 36
Joined: Wed Feb 22, 2017 10:37 am
Location: Beavercreek Ohio
Motorcycle: 1983 GL1100I Interstate

Re: 1983, 1100I timing belt replacement

Post by arseatea »

Thanks virg. That is what I supposed I should do, but not sure and did not want to break something. Both belts are now on, but I am wondering how much tension I should allow with the adjusters. I have a little slack on both sides. Probably 1/4 in or so. Also, I am wondering if the bolt in the slot should be tightened down as that seems to defeat the purpose of the springs..
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virgilmobile
Posts: 9100
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: 1983, 1100I timing belt replacement

Post by virgilmobile »

In theory,the springs are suppose to adjust for proper tension after the belts are put on and then tightened down to lock it there.The belts do not stretch and once set should not need constant spring adjustment like a car has.
I don't trust the spring pretention method.Especially with 30 year old springs.
Set the tention by hand, rotate the crank and recheck the free slack on the long side of the belt.
I usually allow a quarter of a inch vertical play with moderate pressure.The "how to" section has a good detail about this too.
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eklimek
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Re: 1983, 1100I timing belt replacement

Post by eklimek »

The right (throttle) hand side sprocket moves. Thats why some prefer to fix/clamp it in place.

Another way is to count teeth between marks before you change belts. Teeth dont move. Move the sprocket back to match up the marks the same number of teeth.

Ed
arseatea
Posts: 36
Joined: Wed Feb 22, 2017 10:37 am
Location: Beavercreek Ohio
Motorcycle: 1983 GL1100I Interstate

Re: 1983, 1100I timing belt replacement

Post by arseatea »

Wish I had thought about that before. I could have just marked the old belt and tooth on both sprockets with some white paint, and then just laid the old belt next to the new belt and marked the new belt on the same teeth and just made sure that the marks lined up when I installed it. Saves doing a lot of tooth counting..Just proves there are always easier ways to do difficult things..Thanks for the suggestion..
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RBGERSON
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Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: 1983, 1100I timing belt replacement

Post by RBGERSON »

not ABOUT MRAKING THE BELTS..once you line up the cam wheels correctly by turning the crank and checking the T1 mark at the inspection port..the only thing I mark, just so I have it, is the crank sprocket position. The cam wheels have their own marks that line up with the marks on the case but the crank does not..so I mark it just in case it moves while I am changing the belts..not likely unless I do something stupid..but well it's been know to happen..me doing something stupid.. :lol:


HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB
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