Coolant Leaking from Head Gasket


Information and questions on GL1100 Goldwings (1980-1983)
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ewalker1
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Joined: Fri Aug 28, 2009 6:29 pm
Location: Canada
Motorcycle: 1983 GL1100i Interstate

Coolant Leaking from Head Gasket

Postby ewalker1 » Sat Oct 17, 2009 8:02 pm



Hope you Guys can help. I just replaced the head gaskets on my GL1100.

When I added anti-freeze to the rad it started running out from the head gasket (left side only) as I was pouring it in.

The block and head were meticulously cleaned prior to putting the head back on. I used the straight edge of a steel carpenter's square to check the head for warpage before re-installing. I re-check my headbold torque and it is correct

This is a steady stream of coolant leaking, not just a drip.

Any ideas or anything to try?

Thanks in advance

Ed



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cyclewizard
Posts: 46
Joined: Wed Sep 09, 2009 8:18 am
Location: flint mi.
Motorcycle: 1982 GL1100 standard

Re: Coolant Leaking from Head Gasket

Postby cyclewizard » Mon Oct 19, 2009 2:13 pm


Did you check it for cracks?

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WingAdmin
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Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Coolant Leaking from Head Gasket

Postby WingAdmin » Mon Oct 19, 2009 6:15 pm

It's leaking between the head and the block? i.e. as if there is a chunk missing from the gasket?

If it's leaking just from the pressure of having coolant poured into it, I think it's time to take the head back off. The gasket might have gotten torn, kinked, or a foreign object might have gotten caught between the gasket and the metal surface. In any case, I suspect you might be needing a new gasket - assuming there are no cracks.

ewalker1
Posts: 4
Joined: Fri Aug 28, 2009 6:29 pm
Location: Canada
Motorcycle: 1983 GL1100i Interstate

Re: Coolant Leaking from Head Gasket

Postby ewalker1 » Mon Oct 19, 2009 10:29 pm

I took the head off and did a visual inspection of the gasket and the two mating surfaces. Again, I can't see anything and the right side is OK. That's what I find so puzzling.

The bike was running fine before I started and had no leaks. It was a daily driver. I decided it was time to do the timing belts. I also decided to do valve seals at the same time.

While grasping for ideas of what it could be, I started to wonder if it could be the Moly 60 paste I used on the head bolts. Do you think it's possible that the paste is skewing the torque of the bolts, i.e, I have 40 Ft lbs on the bolt but that is not fully being transferred to pressure of the head onto the block?

I will take your advice and order a new head gasket anyway but want to rule out other possibilities too.

Thanks again for your help.

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WingAdmin
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Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Coolant Leaking from Head Gasket

Postby WingAdmin » Tue Oct 20, 2009 6:36 am

If anything, the lubricant on the threads will INCREASE the pressure holding the head on. I haven't heard of using Moly 60 on threads before, but I can't think of a reason why that would cause a problem - and certainly not a problem where it's applying uneven pressure, if all the bolts were lubricated the same way.

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cyclewizard
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Location: flint mi.
Motorcycle: 1982 GL1100 standard

Re: Coolant Leaking from Head Gasket

Postby cyclewizard » Tue Oct 20, 2009 7:23 am

It sounds like you bought the aftermarket head gaskets instead of the oem one's?
If they were oem gaskets you must have gotten a #2 gasket.
One thing about doing the job two or three times is you get really good at it. :lol:

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Oldewing
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Joined: Wed Jul 22, 2009 1:07 pm
Location: Gahanna, Ohio
Motorcycle: 82 GL 1100 Interstate

78 GL 1000

Re: Coolant Leaking from Head Gasket

Postby Oldewing » Wed Oct 21, 2009 9:23 am

When I had the same problem after doing the heads on a 78. I found that the gasket will go on backwards....................................................................................................................that makes them leak very nicely






Yep, there's that "do it 2 or 3 times and you get good at it" again.
you can go exactly .4 miles with the petcock turned off.


82 GL1100
68 CB350
06 GL1800

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cyclewizard
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Joined: Wed Sep 09, 2009 8:18 am
Location: flint mi.
Motorcycle: 1982 GL1100 standard

Re: Coolant Leaking from Head Gasket

Postby cyclewizard » Sun Oct 25, 2009 10:52 am

Did you find out what went wrong?




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