Need to replace the head gasket GL1100


Information and questions on GL1100 Goldwings (1980-1983)
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dvcruz
Posts: 93
Joined: Sun Aug 15, 2010 1:49 am
Location: San Jose, Ca
Motorcycle: 1993 GL1500 Aspencade
1983 GL1100 Interstate

Need to replace the head gasket GL1100

Postby dvcruz » Mon Jan 17, 2011 8:33 pm



My '83 interstate is blowing white smoke out the right exhaust. The bike sat for 15 years before I spent 3 months restoring it (about 500 miles ago). It (the smoke) has been getting progressively worse the more I ride it. A few nights ago I pulled the number 3 plug and coolant blew out of the cyl when I cranked the engine. Hmmmm....
I'm thinking I can drain the coolant, remove the timing belt, exhaust pipe and fuel pump, and then remove the head. Put in some new oil plug o-rings and a new head gasket and be done.
My question is, is there a particular position I should or shouldn't have the timing belts at when I remove the head? I'm wondering about the valve being under compression and something moving out of place once I start pulling the heads off? should I be at TDC or just mark the teeth position real good before starting?
Seems like an easy job to do without removing too many parts, or am I missing something?
Thanks all.
dvc


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MJSantos
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Location: York, Pa
Motorcycle: 1983 GL1100I
1983 GL1100 Custom
2002 Shadow
1983 Honda Magna V45
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Re: Need to replace the head gasket GL1100

Postby MJSantos » Thu Jan 20, 2011 8:47 am

Honestly, if you have a failure on one side you might as well suck it up and do both. You'll be down after removing parts to the point it really won't take that much more. Pull the radiator, carb rack, cooling tubes. Drop the exhaust then the timing belt covers and you'll be ready for the heads. Why not do both?

dvcruz
Posts: 93
Joined: Sun Aug 15, 2010 1:49 am
Location: San Jose, Ca
Motorcycle: 1993 GL1500 Aspencade
1983 GL1100 Interstate

Re: Need to replace the head gasket GL1100

Postby dvcruz » Thu Jan 20, 2011 11:15 am

I didn't mention it earlier, but I'm doing both sides. Good thing too. The little bitty o-rings on both sides were shot. All cleaned up now, just waiting for parts to come ing.
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punkies
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Location: Eastern Cape Port Elizabeth South Africa
Motorcycle: 1983 gl1100 interstate

Re: Need to replace the head gasket GL1100

Postby punkies » Mon Jan 24, 2011 7:18 am

Hey there, while you are waiting have the radiator checked and replace you thermostat and radiator cap as this could cuase some problems, because the bike was standing so long ;)

dvcruz
Posts: 93
Joined: Sun Aug 15, 2010 1:49 am
Location: San Jose, Ca
Motorcycle: 1993 GL1500 Aspencade
1983 GL1100 Interstate

Re: Need to replace the head gasket GL1100

Postby dvcruz » Mon Jan 24, 2011 2:48 pm

thanks Punkies. Did both. Found that the reservoir hose (black one that feeds back into the rad cap) had a big tear in it which needed repairing.
dvc
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WingAdmin
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Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
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Re: Need to replace the head gasket GL1100

Postby WingAdmin » Thu Jan 27, 2011 10:31 pm

dvcruz wrote:thanks Punkies. Did both. Found that the reservoir hose (black one that feeds back into the rad cap) had a big tear in it which needed repairing.
dvc


That's something you definitely need to fix before running the engine - when the engine heats up, it will push coolant up through that hose into the reservoir, but when it cools down, it will suck air through the split, eventually filling the reservoir with coolant, and running the engine with low coolant levels, which can cause it to overheat - which can cause head gasket failure!

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MSGT-R
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Re: Need to replace the head gasket GL1100

Postby MSGT-R » Sun Jan 30, 2011 11:44 am

That reservior has a grommet in the top that is also a part of the tube that runs down into it. Check it for tears too. I replaced mine with a section of steel brake tubing cut-to-fit and put a rubber grommet around it to seal it to the tank. It will never leak again.
Don't spook the road sheep.

dvcruz
Posts: 93
Joined: Sun Aug 15, 2010 1:49 am
Location: San Jose, Ca
Motorcycle: 1993 GL1500 Aspencade
1983 GL1100 Interstate

Re: Need to replace the head gasket GL1100

Postby dvcruz » Mon Jan 31, 2011 11:20 pm

Thanks Top.
I did have a big nasty tear in my rubber hose top and replaced it with another one I found that was like brand new.
dvc


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