GL1100/GL1000 cams


Information and questions on GL1100 Goldwings (1980-1983)
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514-richard
Posts: 5
Joined: Thu Jan 25, 2018 10:30 am
Location: Montreal,Quebec,Canada
Motorcycle: !976 GL1000K2 and a gl1100 1982

GL1100/GL1000 cams

Post by 514-richard »



Good morning.Excuse me if my English is not always OK trying my best.I have rebuilt a 1982 GL 1100 engine to fit a 1976 GL frame.1976 GL1000 heads and carbs and a 1978 GL rear cover with a 1976 clutch cover are mounted on the engine.No big issues, clutch cover needed some spacing so that clutch could turn free.My problem is to time and adjust points on this engine.How do I get the right degrees.What is the correct valve adjustment.Surely someone has done this conversion before or has enough knowledge to help me out.


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DenverWinger
Posts: 1944
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: GL1100/GL1000 cams

Post by DenverWinger »

Seems you should use the 1976 valve adjustment specs on a 1976 head.... I doubt the ignition timing marks are going to vary that much between 1976 and 1982 engine, and using points the timing drifts anyway thru wear. I'd just time it to the F1 and F2 marks as normal.
♫ 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
514-richard
Posts: 5
Joined: Thu Jan 25, 2018 10:30 am
Location: Montreal,Quebec,Canada
Motorcycle: !976 GL1000K2 and a gl1100 1982

Re: GL1100/GL1000 cams

Post by 514-richard »

Thank you DenverWinger.For the valves OK I think either adjustment should be almost right.The marks on the 2 crankshafts are different.1975/77 marked at 5 degrees BTDC and 1982 marked at 10 degrees BTCD.Shoud I change the marks on camshaft pulley or something else?Contact breaker was between.012/.016 does it stays the same?Have a nice day in Denver Here in Montreal it's 15 farenheith so there is time to play whith motors
User avatar
DenverWinger
Posts: 1944
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: GL1100/GL1000 cams

Post by DenverWinger »

OK, considering the timing marks difference between years, I again would go with the ignition timing that matches the cams/heads. A piston and crank is just a piston and crank regardless of the block, but differences in the grind and timing of the cam lobes would likely dictate best ignition timing. So use the 1976 ignition specs, too. If 1976 marks at 5* and 1982 at 10*, just time to halfway between the T1 / F1 marks.


♫ 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
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