Should I part it out?


Information and questions on GL1000 Goldwings (1975-1979)
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blackhawk22
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Should I part it out?

Postby blackhawk22 » Sun Feb 12, 2012 11:20 pm



Hey guys - Just wondering what I should do now. I have a 78 GL1000 with 39k mi that I picked up from a salvage auction real cheap. I don't know a lot about the bike before I picked it up except that it was outside for at least a couple months before I got it. It looks complete except for the front fender. `Long story short, I pulled the spark plugs and they looked OK except there was a ton of debris on the outside, some of which had to have fallen in the combustion chamber. I pulled the carbs (have to rebuild those anyway) and when I looked inside the head, there was a lot of corrosion on one of the cylinders. Do you think I have a blown head gasket, or a cracked head? What do you think? Thanks for viewing my post.
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D2D
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Re: Should I part it out?

Postby D2D » Mon Feb 13, 2012 7:38 am

You say there was a lot of debris on the outside of the plugs when you pulled them, did you clean it away or allow it to fall inside?
Was the airbox cover still on the bike and screwed down tightly?
What does the oil look like, is it milky white?
What does the water in the radiator look like, any signs of oil?
What did the plug show for that one cylinder, was it rusted or fouled?
What does the rocker assembly show you; rusted, corroded? Signs of water?

As for a blown gasket, could be; same answer for a cracked head, could be.
Answer my questions above and we'll see if we can get you an answer.

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virgilmobile
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Re: Should I part it out?

Postby virgilmobile » Mon Feb 13, 2012 4:54 pm

I saw the exact thing on a 78.What I found....The bike is on the side stand...It rains real hard...The rain is channeled down the false tank cover and runs hard on the air cleaner cover...from there it's scooped into the air cleaner and runs down the carb throat and sits there.
On mine , it filled one cylinder with water and on the front intake valve(which was closed)it set on the valve where it rusted.
This is what I did....I pulled the exhaust header...I didn't want it full of oil,impossible to burn out..
I filled the rusted valve area with a mixture of Sea Foam and ATF..I let it set 2 days...

Then I rolled the engine over by hand..I turned free enough to continue with the cleanup.

SPECIAL NOTE: I turned the engine by HAND not the starter.

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blackhawk22
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Re: Should I part it out?

Postby blackhawk22 » Mon Feb 13, 2012 11:03 pm

D2D wrote:You say there was a lot of debris on the outside of the plugs when you pulled them, did you clean it away or allow it to fall inside? I cleaned as much as I could, but there was no way to get all the debris before pulling the plugs. While I didn't see any debris actually fall inside, I'd rather err on the side of caution.
Was the airbox cover still on the bike and screwed down tightly? The airbox was screwed down tightly and the air filter looked clean.What does the oil look like, is it milky white? The oil is dirty but it doesn't look milky.
What does the water in the radiator look like, any signs of oil? The water in the radiator looked good. No oil. No rust.
What did the plug show for that one cylinder, was it rusted or fouled? The plug for that cylinder looks good. No rust. Not fouled nor corroded.
What does the rocker assembly show you; rusted, corroded? Signs of water? The rocker assembly looks good. No rust or corrosion.

Check out the pics.

Thanks for your help. I'm new to this and your response to my post is greatly appreciated.

As for a blown gasket, could be; same answer for a cracked head, could be.
Answer my questions above and we'll see if we can get you an answer.
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blackhawk22
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Re: Should I part it out?

Postby blackhawk22 » Mon Feb 13, 2012 11:07 pm

virgilmobile wrote:I saw the exact thing on a 78.What I found....The bike is on the side stand...It rains real hard...The rain is channeled down the false tank cover and runs hard on the air cleaner cover...from there it's scooped into the air cleaner and runs down the carb throat and sits there.
On mine , it filled one cylinder with water and on the front intake valve(which was closed)it set on the valve where it rusted.
This is what I did....I pulled the exhaust header...I didn't want it full of oil,impossible to burn out..
I filled the rusted valve area with a mixture of Sea Foam and ATF..I let it set 2 days...

Then I rolled the engine over by hand..I turned free enough to continue with the cleanup.

SPECIAL NOTE: I turned the engine by HAND not the starter.


This seems like it could be the same situation with mine since the rust and corrosion is isolated to the valve area. See the pics in my response to the previous post. Thanks for your suggestions. I really appreciate your help.

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D2D
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Re: Should I part it out?

Postby D2D » Tue Feb 14, 2012 7:17 am

Looks like virgil has supplied you with an answer that fits your situation, good luck and hope you have good results.

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Re: Should I part it out?

Postby virgilmobile » Tue Feb 14, 2012 11:33 am

That you have the valve cover off helps.clean up the valve area.operate the valve by prying on the rocker arm.obviously the piston would need to clear.this will allow you to check for a sticking valve due to rust on the stem without rolling the engine over,sticking the valve and jaming it against the piston.do everything by hand first before trying to crank it up.

And also,if you flood the area with oils,cleaners and the such,you really don't want that to end up in the header.It's almost impossible to burn it out.Pull the headerand plugs,clean,flush and hand test the valves.

Once it moves OK,then move on to the timing belts.They really need to be changed before you run the motor.
The carbs should be a non-issue.Just clean them up and go by the info here about checking them and the pre-test and adjustments.

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blackhawk22
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Re: Should I part it out?

Postby blackhawk22 » Tue Feb 14, 2012 9:03 pm

Thanks again guys. I'll continue to work on it and post the results in this thread. I really appreciate your advice.

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Re: Should I part it out?

Postby blackhawk22 » Tue Feb 21, 2012 10:30 pm

So far I've taken virgilmobile's advice and pulled the header and lubed up the head with transmission fluid and seafoam. I haven't tried to move the rockers yet. Everything has set up for about 3 or 4 days so far. In the meantime, I pulled the radiator and fan just to get it out of the way. Still have to rotate the motor, then change the timing belts.
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Re: Should I part it out?

Postby blackhawk22 » Tue Feb 21, 2012 10:32 pm

BTW - If you know anybody getting rid of some timing belt covers for a 78, let me know. There weren't any on the bike when I got it.

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Re: Should I part it out?

Postby D2D » Tue Feb 21, 2012 11:28 pm

I may have a set here; but I'll bet you could probably find them on eBay down your way and find it would be much cheaper on the shipping. I'll check and see if I have a good set just in case.

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Re: Should I part it out?

Postby WingAdmin » Wed Feb 22, 2012 3:18 pm

blackhawk22 wrote:BTW - If you know anybody getting rid of some timing belt covers for a 78, let me know. There weren't any on the bike when I got it.


Once you get some, I'd replace the timing belt tensioners and belts before starting the engine up. Those tensioners have seen better days.

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Re: Should I part it out?

Postby blackhawk22 » Wed Feb 22, 2012 5:00 pm

Wingadmin wrote:Once you get some, I'd replace the timing belt tensioners and belts before starting the engine up. Those tensioners have seen better days.


You think? They will definitely get replaced. Thanks.

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Re: Should I part it out?

Postby virgilmobile » Thu Feb 23, 2012 11:39 am

Being cheap as I am,I wouldn't buy anything till I determined that the bike(engine) is viable.You don't want a money pit here.Tune up parts,belts and tires are consumable items and need replacing anyways,but a full bike overhaul can get quite expensive.
Been there,done that.I bought 3 gl1100's,all the engine parts,suspension parts,etc,etc to restore my 83 interstate.Yea it's great now,but looking back,it wasn't worth the $3000 in expenses and 2 years invested.So far I haven't had a offer at $2500.I'll keep it for that.
Oh,yes it will outrun my 1200 too.From 0 to way too fast.The last I saw was over 90 and it was still pulling away.
Last time I let a coonass test drive it.He said it wiggled a little around 95 but cleared right up. :shock:

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Re: Should I part it out?

Postby blackhawk22 » Fri Feb 24, 2012 8:41 pm

virgilmobile wrote:Being cheap as I am,I wouldn't buy anything till I determined that the bike(engine) is viable.You don't want a money pit here.Tune up parts,belts and tires are consumable items and need replacing anyways,but a full bike overhaul can get quite expensive.
Been there,done that.I bought 3 gl1100's,all the engine parts,suspension parts,etc,etc to restore my 83 interstate.Yea it's great now,but looking back,it wasn't worth the $3000 in expenses and 2 years invested.So far I haven't had a offer at $2500.I'll keep it for that.
Oh,yes it will outrun my 1200 too.From 0 to way too fast.The last I saw was over 90 and it was still pulling away.
Last time I let a coonass test drive it.He said it wiggled a little around 95 but cleared right up. :shock:


You have a good point. Do you think I should change the timing belts, unstick the valves and get the motor turning (by hand), and then try to start it?

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Re: Should I part it out?

Postby virgilmobile » Fri Feb 24, 2012 11:33 pm

Exactly...this is just me thinking what I would do if it were mine.
1st,clean out the rust and gunk.
Blow residue out of the intake holes and spark plug holes with compressed air.
Spray a shot of WD40 in each plug hole.Leave the plugs out.
Hand operate the one valve in question a little to see if it's free.
Use a wrench to gently turn the crank to roll the engine over.
If it locks up,back it up a little and check the valve for sticking open.If it sticks open,it will hit the piston and stop the engine,thus the reason to hand operate it.
If it rolls over by hand 2 full turns,test the compression.
Understanding that you don't want to crank it with the starter yet,you won't get a good reading on a compression gauge by hand turning,but there will be something compressed in the cylinder.
As long as all 4 cylinders seem to have some compression just by turning it by hand would be a good sign that the innards and valves are working.
Only then would I buy 2 timing belts and fix the idlers. If the bearings are bad replace the ilders.If they are smooth turning,the surface can be cleaned up.
After the timing belts are in,then do a proper compression test.125 absolute minimum,145 is a good usable motor,and no more than 5 PSI difference between any cylinders is best for good balance.
If all checks out THEN you can go on checking the rest of it.

The expensive stuff, like the water pump,tires,stator,brake system.
There's a lot of cleaning,tearing down and polishing to get this back in it's best condition,but it is fun.

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Re: Should I part it out?

Postby blackhawk22 » Sat Feb 25, 2012 10:50 am

Thanks again. I'll keep you posted..

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Re: Should I part it out?

Postby cbx4evr » Sat Feb 25, 2012 10:58 am

Watching this thread closely as I may soon be sharing the same sort of experience.

http://goldwingdocs.com/forum/viewtopic.php?f=10&t=9929&p=48519#p48519
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

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blackhawk22
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Re: Should I part it out?

Postby blackhawk22 » Sat Feb 25, 2012 6:35 pm

Just so you guys know, I have a 3 year old son that doesn't always want to "help" out when I'm wrenching. So I don't get a lot of time to work on the bike. Even on a Saturday. So with the 15 or 20 min that I got so far today, I messed around with that rusty valve. As you may know (from reading earlier posts) I had it soaking in transmission fluid for about a week. I turned the crank by hand and the engine turned freely, the valve opened and closed - un-stuck. Now when I get another few minutes, I'll blow some compressed air through there to clean out the rust and dirt.

Check the pic - that looks a little better huh?
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virgilmobile
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Re: Should I part it out?

Postby virgilmobile » Sat Feb 25, 2012 9:42 pm

Yes indeed.
And good that it doesn't stick.The slurry did it's job in soaking into the contamination.The last bit of junk in there can be cleaned up with a spray and a bit of poking about.I've used a cheap dremmel tool with a small brush on it.Just stay away from the valve stem.
Next,the basic compression test.Can you get a gauge to play with?

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Re: Should I part it out?

Postby blackhawk22 » Sun Feb 26, 2012 12:25 pm

virgilmobile wrote:Yes indeed.
And good that it doesn't stick.The slurry did it's job in soaking into the contamination.The last bit of junk in there can be cleaned up with a spray and a bit of poking about.I've used a cheap dremmel tool with a small brush on it.Just stay away from the valve stem.
Next,the basic compression test.Can you get a gauge to play with?


I don't have a guage, but I've been looking around and pricing them. The only place I've seen them for under $100 is Harbor Freight. I'll ask my buddies who wrench on their vehicles to see if one of them have one I can borrow before I make any purchases.

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Re: Should I part it out?

Postby virgilmobile » Sun Feb 26, 2012 4:47 pm

The compression test is just for more accurate information about the condition of the engine.It really isn't necessary to buy one just yet.It's only a convenient method to test exactly.Even if you stick your finger in the plug hole and crank the motor,that will tell about the same thing.I think I can hold 60 psi compression but I know I can't hold back 140 psi.

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Re: Should I part it out?

Postby 1grouch2u » Sat Mar 03, 2012 7:23 pm

This is pretty 'ghetto', but once you have everything together enough to spin the motor with the starter you can wad up some balls of paper and stuff them into the spark plug holes then spin the motor. How well they 'pop' and how far they fly will give you a ballpark estimate of the compression- :lol: (just press them into the holes- obviously not all the way into the motor! :o )




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