84 Wing started missing on 2 cylinder?


Information and questions on GL1200 Goldwings (1984-1987)
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refuelman
Posts: 11
Joined: Mon Dec 14, 2009 8:38 pm
Location: Bartlesville,Ok
Motorcycle: 1984 GL1200 Aspencade

84 Wing started missing on 2 cylinder?

Postby refuelman » Sun Oct 24, 2010 7:09 pm



I have a 84 Aspencade with 77,000 miles. I bought it used, I have rebuild the carbs replace the coils and new spark plugs, last winter. I had some valve noise with it for a few day, I removed the lifters and cleaned them and rebleed them it ran fine no noise. Then I got back from a 400 mile trip and the bike ran fine. It set for a few days and the next time I started it this is when it started missing, on the left bank. I have checked the compression, ( I wish I had checked it when I first bought the bike) the 2 cylinders on the right, 1 and 3 have only 85lbs of compression, the 2 on the left have only 45lbs. I think the normal compression is 185lbs? I have put seafoam in the gas tank and in the engine oil thinking it might be a sticking valve. No luck yet, I have not rode the bike, but I have let it run for about an hour or so each time I have had it running with the seafoam. I have also noticed that the coolant recovery tank has been going empty, I have had to fill it up about 3 different times, I have not let the engine get hot and not water in the oil and nothing on the ground. I have been looking for a good used engine, but was wondering if it could be the timing belts. Its most likely that I have a head gasket leaking.
Does anyone have any good ideas on what my next step should be, I really like the bike and it road nice on the trip. I do have other items that are going to need some work over the winter months, the front forks leak, the starter just spins and times, perhaps I should just get ride of it, I do like it and I have a lot of time in it on other repairs.
HELP!!!!



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virgilmobile
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Re: 84 Wing started missing on 2 cylinder?

Postby virgilmobile » Mon Oct 25, 2010 10:27 am

Low compression,loss of coolant,sounds like blown head gasket.where's the coolant going?Oil milky?(cracked block)Exhaust wet?(cracked head).Blown head gasket will overheat the coolant and expand the overflow dumping the coolant on the ground,on cool-down it will suck what's left of in overflow tank back into the radiator.Yes,compression is low.Rule of thumb,It needs about 90lbs to ignite fuel and run at all.my 83 had 85-125-110-70 before re-ring.It would not idle well at all.Generally if I suspect a blown head gasket,pull the radiator cap off,fill it to the neck,run the bike.some expansion is normal,bubbles and a lot of coolant displacement are a sign the compression is getting into the water jacket.If this is the case,pop the heads off,check for warp and rebuild.this can be done without pulling the engine.

refuelman
Posts: 11
Joined: Mon Dec 14, 2009 8:38 pm
Location: Bartlesville,Ok
Motorcycle: 1984 GL1200 Aspencade

Re: 84 Wing started missing on 2 cylinder?

Postby refuelman » Mon Oct 25, 2010 12:04 pm

Thanks for the information, their is not water in the oil. I will check the rad while running the engine. with this low comperssion reading should I re-ring the engine and can this be done without removing?

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virgilmobile
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Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
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82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: 84 Wing started missing on 2 cylinder?

Postby virgilmobile » Mon Oct 25, 2010 1:48 pm

I would't get to excited about re-ringing yet.generally worn rings shows as progressive not just a few hundred miles.my 83 had 157k miles and 85psi on the worst cyl.after spliting the case and checking,the end gap measured .029.factory limit is .014 or there abouts.with the very low pressure you have and liquid loss I suspect a head job would get it back running.of course(depending on how much time and $$$ you want to invest)a complete rebuild can be done.I just finished my 83,some $300 in parts and 35 hrs time the engine specs like new and runs like one.

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virgilmobile
Posts: 7647
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: 84 Wing started missing on 2 cylinder?

Postby virgilmobile » Mon Oct 25, 2010 2:00 pm

Another thought!! I remember testing a kaw this way:roll the engine over until the offending cyl is at tdc comperssion stroke. Adapt a air line to a compression tester.pressurize the cyl.I think I used about 30lbs,using a hose in your ear you can hear the escaping air.listen in the crankcase,exhaust pipe,carb,radiator.wherever tha air is leaking out bad you'll hear it.

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Right Winger
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84aspy

Re: 84 Wing started missing on 2 cylinder?

Postby Right Winger » Mon Oct 25, 2010 5:32 pm

virgilmobile wrote:Low compression,loss of coolant,sounds like blown head gasket.where's the coolant going?Oil milky?(cracked block)Exhaust wet?(cracked head).Blown head gasket will overheat the coolant and expand the overflow dumping the coolant on the ground,on cool-down it will suck what's left of in overflow tank back into the radiator.Yes,compression is low.Rule of thumb,It needs about 90lbs to ignite fuel and run at all.my 83 had 85-125-110-70 before re-ring.It would not idle well at all.Generally if I suspect a blown head gasket,pull the radiator cap off,fill it to the neck,run the bike.some expansion is normal,bubbles and a lot of coolant displacement are a sign the compression is getting into the water jacket.If this is the case,pop the heads off,check for warp and rebuild.this can be done without pulling the engine.


I think you are putting the cart before the horse. Before you go thinking about reringing you should at the very least get a professional opinion. And YES if it does need a ring job (i doubt it) indeed the engine will have to come out. That's not the hard part ,the hard part comes in when you have to split the cases to gain accsess to the rings and crank and such

refuelman
Posts: 11
Joined: Mon Dec 14, 2009 8:38 pm
Location: Bartlesville,Ok
Motorcycle: 1984 GL1200 Aspencade

Re: 84 Wing started missing on 2 cylinder?

Postby refuelman » Mon Oct 25, 2010 6:13 pm

Lots of infor, Thanks. I am still wondering about the starter problem, it just spins up and grinds?

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virgilmobile
Posts: 7647
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: 84 Wing started missing on 2 cylinder?

Postby virgilmobile » Tue Oct 26, 2010 3:42 pm

Everyone agrees,the sprag clutch in the engine(the starter does not have a clutch)is sticky,gummed up,or otherwise not clutching right.I got mine right by using MMO for a few hours of running.Others use Sea Foam,etc.Lots of posts about this problem.




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