GL1100 engine siezure

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JohnBaxter
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GL1100 engine siezure

Post #1 by JohnBaxter » Wed Dec 05, 2018 10:02 pm

I recently bought a 1980 GL1100.
The guy I bought it from said the electrical system wasn't working right.
I bought a new AGM battery, a new voltage regulator, and a start relay.
Insert key, energize electrics, push start button... (click)
It seems the engine is siezed, is this common with 1100's?
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Re: GL1100 engine siezure

Post #2 by stretch160 » Wed Dec 05, 2018 10:05 pm

have you tried turning it over by hand?

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Re: GL1100 engine siezure

Post #3 by LuckyEddie » Wed Dec 05, 2018 10:31 pm

Remove the spark plugs, probably hydro locked.
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JohnBaxter
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Re: GL1100 engine siezure

Post #4 by JohnBaxter » Wed Dec 05, 2018 10:48 pm

I have tried turning it over with the spark plugs removed.
I removed the timing cover and tried turning it over with a wrench in the crank.
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ericheath
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Re: GL1100 engine siezure

Post #5 by ericheath » Thu Dec 06, 2018 12:18 am

Both belts are still intact? I would pull the valve covers (four bolts each side) and at least look for evidence of damage there; broken cam, rockers, bent valves. If it’s not moving either direction, this is less likely.

Lots of guys have luck spraying some penetrant in the plug holes and rocking the back wheel with it in gear. Heat can help too. (Acetone/ATF is a common suggestion/ keep it off paint) Leave it a day, rock it, repeat. If it’s just a little corrosion you probably get away with it. If it’s a lot, you might make it worse.

Safest way, but expensive is pull the head(s). If it’s been sitting a while, the original head gaskets are apt to have a short lifespan anyways.
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77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
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JohnBaxter
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Re: GL1100 engine siezure

Post #6 by JohnBaxter » Thu Dec 06, 2018 12:30 am

I have already bought a new top end kit. Both belts are in tactbut one looks newer. I'm wondering if I've been banboozled.
I guess the next step is head removal.
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wingrider
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Re: GL1100 engine siezure

Post #7 by wingrider » Thu Dec 06, 2018 12:44 am

Just to clarify, you put a 17 mm socket on the shaft under the generator bolt cover, which is behind the spin off cover on the rear left side of the engine, could you turn it clockwise at this point?

I had an 81 1100 in the shop that seemed to be locked up, but turned out starter was bad.
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JohnBaxter
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Re: GL1100 engine siezure

Post #8 by JohnBaxter » Thu Dec 06, 2018 12:57 am

I did not try to rotate the engine via the generator bolt, I put a wrench to the center pulley under the timing cover.
Does that make a difference?
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desertrefugee
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Re: GL1100 engine siezure

Post #9 by desertrefugee » Thu Dec 06, 2018 9:20 am

Should work just as well. Hope it turns (No pun intended) out well for you.
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Re: GL1100 engine siezure

Post #10 by ericheath » Thu Dec 06, 2018 10:12 am

Well the ultimate bamboozle here a few years ago was a guy who bought a running bike. It was running rough, checked compression and zero on a cylinder. Pulled the head and the motor had been disassembled, a piston removed, reassembled with no piston or rod, and sold as a runner.

You never no.
Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi

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Re: GL1100 engine siezure

Post #11 by CYBORG » Thu Dec 06, 2018 11:49 am

if one belt looks newer, was it installed correctly? check the timing marks on the cam. Don't know why anyone would charge onlt one belt,......unless one broke. Which might cause other damage
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