1980 GL1100 Head Gasket Replacement


Information and questions on GL1100 Goldwings (1980-1983)
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RodneyB
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1980 GL1100 Head Gasket Replacement

Postby RodneyB » Thu Dec 11, 2014 10:17 am



I am planning on replacing both head gaskets do to finding a small amount of oil in my antifreeze reservoir.Its not much,but there is a film. And if i stick my finger in there it shows on my finger tip.
The book says i have to remove the camshaft and rocker mechanism as part of the job. Can i do the gaskets without removing them?



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dingdong
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Re: 1980 GL1100 Head Gasket Replacement

Postby dingdong » Thu Dec 11, 2014 11:27 am

No reason to remove the cam and rockers. Don't forget the lower bolt under the head.
Tom

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WingAdmin
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Re: 1980 GL1100 Head Gasket Replacement

Postby WingAdmin » Thu Dec 11, 2014 11:36 am

Yes, once the timing belts are removed, the heads come off as a unit, without having to disassemble the rockers or camshaft from it.

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RodneyB
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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Fri Dec 12, 2014 12:04 am

That's kind of what i figured. Thanks so much guys!

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RodneyB
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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Sat Dec 13, 2014 12:01 pm

So....I have decided to just go a head a lap the valves and replace the guide seals.
I put together a parts list for other viewers to use as a future reference for doing Both Heads.
If i missed anything please do let me know so everyone knows what is needed to do the job.

2 Head gaskets # 12251-MG9-306
2 Valve cover Gaskets Seals # 12328-371-000
4 Exhaust Gasket Seals # 18291-286-306
1 Orface O-Ring Seal # 91305-371-003
1 Orface O-Ring Seal # 91308-371-003
4 Intake O-Ring Seals # 91301-371-005
8 Valve Stem Seals # 12209-MB9-003
1 Points (Breaker) Gasket # 30376-371-306
8 Valve Cover Mount Seals # 90541-371-000
4 Water Pipe O-Ring Seals # 91301-MB6-003
2 Water Joint Gaskets # 19429-371-306
2 Cam Shaft End Seals # 91209-371-003
1 Cam Shaft End Cap # 91209-463-013
1 Fuel Pump Gasket # 16701-634-000

I found a Gasket Kit (Athena Top End Gasket Kit P400210600976) that has most everything you'll need at a very affordable price. Just under $70. If i was to buy everything separate i'd be looking at about $250

If i missed anything,or listed anything that really is not needed, please do let me know. Thanks

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HawkeyeGL1200
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Re: 1980 GL1100 Head Gasket Replacement

Postby HawkeyeGL1200 » Sat Dec 13, 2014 12:22 pm

Please be careful when purchasing gaskets. I've read too many horror stories where a person purchased inexpensive head gaskets and then had to re-do the job with OEM gaskets because the inexpensive gaskets failed.

I do not know anything about the brand you mentioned, and I'm not saying they're no good... just ask around a little before you make that purchase.... please

The work and aggravation you save may be your own.
I am wrong as often as I am right concerning what is wrong with someone else' motorcycle without having seen the machine in person. Guessing with limited information, as to the source of the trouble, is sketchy at best.

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RodneyB
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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Sat Dec 13, 2014 12:32 pm

HawkeyeGL1200 wrote:Please be careful when purchasing gaskets. I've read too many horror stories where a person purchased inexpensive head gaskets and then had to re-do the job with OEM gaskets because the inexpensive gaskets failed.

I do not know anything about the brand you mentioned, and I'm not saying they're no good... just ask around a little before you make that purchase.... please

The work and aggravation you save may be your own.



I do appreciate your concern,and i have considered the outcome,however i am on a budget and i just couldn't pass it up.
I guess this will be a learning experience...lol. Hopefully in a good way. ;)
This is just a hobby,so if it turns out in a bad way,I'll be ok.
You live,And you learn :)

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Johnyy Smoke
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Re: 1980 GL1100 Head Gasket Replacement

Postby Johnyy Smoke » Sat Dec 13, 2014 4:41 pm

I used the Athena top end kit on my 1980 1100, all gaskets fit precisely. 9000 miles later and no problems. I cant complain. They are guaranteed to be as good as OEM or better. The cam seals are not included in the kit.
Sounds like you got a good price, as mine was $100. Make sure you correctly install the two o- rings on the oil restrictor pipe in both heads. otherwise you will be doing it again. Let us know how it goes. Regards, Johnny

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SteveB123
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Re: 1980 GL1100 Head Gasket Replacement

Postby SteveB123 » Sat Dec 13, 2014 5:53 pm

Also used Athena top end kit, no issues.
Current:82 GL1100 Interstate, 60 Amp Poorboy, MSD coil
Previous: 93 GSX1100F Katana
82 GL500 Silverwing

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RodneyB
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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Sat Dec 13, 2014 7:14 pm

Well,I started pulling parts and low and behold :o I also need a water pump :x Not sure what to do at this point. Fix it,or move on.... :? Dang pumps are not cheap,and its a very big pain in my opinion to do the job. I have been there done that a time or two one a GL1200. Basically the same thing. Just wasn't expecting ALL of this. One things for sure...These bikes will run dam good even when they're sick! ;)

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RodneyB
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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Sat Dec 13, 2014 8:32 pm

:idea: It just dawned on me that my oil in the water problem must be the water pump :oops: :lol:
Well,at any rate,i have a problem with it smoking on start up for a bit which i suspect is do to the valve guide seals being old. The bike only has 48,000 miles on it. Its a very clean bike. So...I guess i am in for a big one. I'll be replacing the water pump and pulling the heads both. I have seen a few posts on how to change the guide seals without pulling the heads,but at this point i may as well pull them and do a full inspection.

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HawkeyeGL1200
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Re: 1980 GL1100 Head Gasket Replacement

Postby HawkeyeGL1200 » Sat Dec 13, 2014 8:36 pm

I was going to suggest that after reading you wrote you needed a water pump.

RodneyB wrote::idea: It just dawned on me that my oil in the water problem must be the water pump :oops: :lol:
Well,at any rate,i have a problem with it smoking on start up for a bit which i suspect is do to the valve guide seals being old. The bike only has 48,000 miles on it. Its a very clean bike. So...I guess i am in for a big one. I'll be replacing the water pump and pulling the heads both. I have seen a few posts on how to change the guide seals without pulling the heads,but at this point i may as well pull them and do a full inspection.
I am wrong as often as I am right concerning what is wrong with someone else' motorcycle without having seen the machine in person. Guessing with limited information, as to the source of the trouble, is sketchy at best.

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RodneyB
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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Sat Dec 13, 2014 8:54 pm

HawkeyeGL1200 wrote:I was going to suggest that after reading you wrote you needed a water pump.

RodneyB wrote::idea: It just dawned on me that my oil in the water problem must be the water pump :oops: :lol:
Well,at any rate,i have a problem with it smoking on start up for a bit which i suspect is do to the valve guide seals being old. The bike only has 48,000 miles on it. Its a very clean bike. So...I guess i am in for a big one. I'll be replacing the water pump and pulling the heads both. I have seen a few posts on how to change the guide seals without pulling the heads,but at this point i may as well pull them and do a full inspection.


LOL! The pump must still be operating because it never over heats,and it always regulates properly. I watch the temp needle do its job.But it wiggles around in there like crazy so i know its on its way out.
I picked the bike up late this summer for $850. Road it 110 miles home in 90 degree weather. never had a problem. I have had a few older wings and this one is just a real nice clean bike. I pulled the fairing off and put a headlight from a CB750 on it,added a set of blinkers because i wanted it to look more like a cruiser then a touring bike but have the touring capability's along with the comfort. I found it to be way more powerful then the two other wings i owned.(Gl1200 and a GL1000)

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Re: 1980 GL1100 Head Gasket Replacement

Postby WingAdmin » Mon Dec 15, 2014 10:37 am

The water pumps rarely outright fail, and if they do, they've been doing so gradually for some time. It's normally bearings and failing seals (usually the former causing the latter), which causes mixing of oil and coolant, and leaking of either/both out the pump weep hole.

Oil in the coolant is an annoyance and can cause overheating, but coolant in the oil can cause engine main bearing failure, scrapping an engine.

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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Mon Dec 15, 2014 11:11 am

I will be replacing the water pump as well. I was wondering if anyone had any advice on possibly rebuilding the pump. It is the original plastic impeller pump. I see the parts are quite a bit cheaper to purchase then replacing the whole pump. Is this a tough job? What can I expect if I attempt it? Thanks.

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Re: 1980 GL1100 Head Gasket Replacement

Postby WingAdmin » Mon Dec 15, 2014 11:24 am

RodneyB wrote:I will be replacing the water pump as well. I was wondering if anyone had any advice on possibly rebuilding the pump. It is the original plastic impeller pump. I see the parts are quite a bit cheaper to purchase then replacing the whole pump. Is this a tough job? What can I expect if I attempt it? Thanks.


You'll need to extract the bearings pressed into the housing, and press replacement bearings in their place. Then replace the various seals. I can recall one person who did this, they said it was a fair bit of work. But certainly not impossible.

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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Sun Dec 21, 2014 11:34 am

Hello again! I was wondering if I could get some pointers on the best way to replace the camshaft seals? Should I install them while it's split open,or tap them in,and should I use any type of gaskit sealer? Thanks

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Johnyy Smoke
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Re: 1980 GL1100 Head Gasket Replacement

Postby Johnyy Smoke » Sun Dec 21, 2014 6:21 pm

I replaced mine while they were apart.
Any good grade of gasket sealer on the seals will work, this is an important step to avoid leaks and doing it again. Regards, Johhny

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RodneyB
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Re: 1980 GL1100 Head Gasket Replacement

Postby RodneyB » Thu Jan 08, 2015 10:04 pm

Well,I just wanted to thank everyone for the help.I got her all buttoned back up and she runs real nice! Now i am just waiting for nicer weather....




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