Timing belt change question


Information and questions on GL1100 Goldwings (1980-1983)
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mnmailman
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Location: Thief River Falls, MN
Motorcycle: 1980 Vetterized gl1100

Timing belt change question

Post by mnmailman »



After putting on the new belts I checked the crank and noticed it had rotated cw (front of bike) about .25 of an inch or so and the T1 mark is no long visible in the timing port.
The cam pulleys did not move.
Should I take the belts off again and turn the crank back to the T1 position, or will this still make the pistons hit a valve since the pistons will still be moving but not the valves with the belts off ?
If not, how to I get the crank back to T1 ?


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mnmailman
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Re: Timing belt change question

Post by mnmailman »

Update. I took the belts back off and moved the crank the slight amount to get back to TDC T1. Cam pulleys still correctly locked in place.
Put the belts back on. Crank is at TDC 1, cam pulleys are correct.................do a few revolutions by hand, all feels good but now at TDC 1, the cam pulleys are off !?!
I.e,With the crank at TDC 1 the UP markers are at the bottom and the arrows are pointing towards the crank vs. the timing mark on the belt housing (as they should be).
What in the world caused the change ?
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mnmailman
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Re: Timing belt change question

Post by mnmailman »

Ignore. <sound of dope slap> Just had to do one more rotation back to TDC 1 and all was well. Bike running fine.
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WingAdmin
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Re: Timing belt change question

Post by WingAdmin »

mnmailman wrote: Sun Aug 01, 2021 6:39 pm Ignore. <sound of dope slap> Just had to do one more rotation back to TDC 1 and all was well. Bike running fine.
:lol: You got it! Two crank revolutions to one cam revolution.
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mnmailman
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Re: Timing belt change question

Post by mnmailman »

WingAdmin wrote: Sun Aug 01, 2021 6:50 pm
mnmailman wrote: Sun Aug 01, 2021 6:39 pm Ignore. <sound of dope slap> Just had to do one more rotation back to TDC 1 and all was well. Bike running fine.
:lol: You got it! Two crank revolutions to one cam revolution.
Exactly ! :lol: Sat down and figured it out. Recently adjusted the valves so that gave me the T1 answer too.


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