84 gl1200 smoke issue


Information and questions on GL1200 Goldwings (1984-1987)
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trukr
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84 gl1200 smoke issue

Postby trukr » Wed Jun 22, 2011 2:52 pm



After I flushed the system and changed my thermostat my 84 aspy smokes light smoke at first start up then it stops completely. I checked it out and there's no water in the oil no water getting on the plugs and it runs just fine no overheating or anything. Should I still be worried that it is a head gasket or could there be something else causing it to smoke when first started? Need help figuring ot what to check next. Any feedback would be a big help. Thanx.



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Re: 84 gl1200 smoke issue

Postby WingAdmin » Wed Jun 22, 2011 3:38 pm

If it's blue smoke, then no worries, it's a bit of pooled oil burning off, and most of our old bikes do that. If it's white, sweet-smelling smoke, then it's coolant, and you will have to figure out where the leak is coming from.

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Wed Jun 22, 2011 5:15 pm

Thanx for the reply. The smoke is white. My question is is if it is coolant getting in the cylinder then why is it not showing signs of it on the plugs and wouldn't I it run hot? It runs cool even at 65mph on my 45 mile trip to work and back.

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Re: 84 gl1200 smoke issue

Postby WingAdmin » Thu Jun 23, 2011 2:11 pm

Is your coolant level dropping?

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Thu Jun 23, 2011 5:21 pm

I haven't noticed the coolant level dropping. Will have to ride it for a bit and keep an eye on it I guess. it just has me stumped right now. Running as god as it always has. Plenty of power, and no backfiring or anything like a plug is getting wet with coolant. Is there anything else that could cause the smoke?

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Mon Jun 27, 2011 12:04 pm

Well my mystery is solved. I checked the plugs again and sure enough# 2 cylinder has coolant in it. Gasket kit is on the way. My question is that my manual states to remove the cam from the head before removing the head, is this the case or can I leave the cam in the head while removing it? I'm new to these engines and don't want to make a mistake. Any advice would be great thanx.

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Re: 84 gl1200 smoke issue

Postby Roleketu » Wed Jun 29, 2011 7:23 pm

The cams do not have to come out. I did head gaskets last year and it's a fairly simple job. Before removing the heads make sure you have all the timing marks lined up, those would be the crank marking site hole, and the "top" stamp on the cam gears. I suggest while you're at it, replace the thermostat, and timing belts.

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Wed Jun 29, 2011 11:58 pm

Thanks for the reply, I have been reading my clymers and think I'm now ready to tackle the job.that is as soon as my gaskets get here. For the time being I plan to rebuild my starter while its easy to get to. Also I just replaced the thermostat and the timing belts are only 6 months old. I'm glad I have the advice of guys who know these bikes. Thanx again.

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Re: 84 gl1200 smoke issue

Postby Roleketu » Thu Jun 30, 2011 2:25 am

Couple of other things I remember to double check. When separating the head from the block, watch for the small oil dowel/tube that's held in place with small o-rings. Note it's mounting direction. Next, when mounting the new head gasket no sealant is used, the GL1200 gaskets are graphite coated. Also, it would appear that the head gasket could be mounted either direction, however if you look at the lower portion of the block and head where the small 6mm bolt goes, that's the return oil galley. If you get the gasket backwards the oil galley won't get sealed. Double check that.
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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Thu Jun 30, 2011 8:45 am

Thanx Roleketu, I will definitely do that. If you remember anything else just let me know. Anything helps. I think its going to take longer getting to the heads than it will to change the gaskets, lower fairing, crash, bars, floor boards all have to come off so much for my weekend. Lol. :lol:

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Dogmeat
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Re: 84 gl1200 smoke issue

Postby Dogmeat » Sat Jul 02, 2011 8:13 pm

Said above..if it is blue smoke it is oil from the left bank, ans it leans that way on the side stand....no worries.

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Mon Jul 04, 2011 12:24 pm

Heads off
Heads off
Well so far so good. Heads are off the starter has been rebuilt and reinstalled. Heads are going to machine shop this week to check for cracks and warpage. All in all it has been a rather fun job. Honda really knew what they were doing when they built these, I've never worked on an easier engine to keep track of the timing. Found a definite blown head gasket on the left bank, and the right didn't look like it was far behind. I will be posting my progress over the next week.

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Wed Jul 06, 2011 5:41 pm

Picked my heads of from the machine shop today. No cracks or warpage. He planed them at .0004 and now they look like new. I wont be able to start reassembly until saturday. :(

rcgreg
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Re: 84 gl1200 smoke issue

Postby rcgreg » Wed Jul 27, 2011 3:47 pm

The Cylmers says to remove carbs etc if doing both heads - it looks like you didn't need to do that. Correct?

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Re: 84 gl1200 smoke issue

Postby Roleketu » Thu Jul 28, 2011 1:28 pm

Correct, carbs were never removed. I think I may have removed the intakes at the rubber boot just so they'll be out of the way.

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Re: 84 gl1200 smoke issue

Postby rcgreg » Thu Jul 28, 2011 2:03 pm

well then, that makes it easier !

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Thu Jul 28, 2011 4:14 pm

No you don't have to remove the carburetors. Just hold them up with a tarp strap. Remove the intake bolts from the top of the head and the water port on top of the head. It was a fairly simple job.

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Sun Jul 31, 2011 7:11 pm

Ok. I have hit my wits end here. Got my head gaskets replaced, after getting the heads planed and doing everything perfect. Now after 2 weeks of all being good, the white smoke is back and it is definitely antifreeze. No signs of water in oil or on the plugs, what is going on here? Do I have a cracked head and if so wouldn't the bike be running warm? It never gets over the 5th bar on the temp gauge even slow cruising in town. Please give me any ideas I'm losing my mind! Any help help is welcomed. Thanx :mrgreen:

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Right Winger
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Re: 84 gl1200 smoke issue

Postby Right Winger » Mon Aug 01, 2011 1:11 am

Did you have the heads pressure tested ? :idea:

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trukr
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Re: 84 gl1200 smoke issue

Postby trukr » Mon Aug 01, 2011 11:49 am

No I didn't have the heads pressure tested. Guess its back to the drawing board. Almost ready to give up the ghost on this bike, been working on it more than riding it. Going to pressure test the cooling system and see what I find. Any other suggestions are welcomed. This bike is really in good shape just wish I wasnt having so many issues. Thanx :x

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Right Winger
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Re: 84 gl1200 smoke issue

Postby Right Winger » Mon Aug 01, 2011 11:45 pm

Well anytime you get a headgaskit failure it is a common practice in my profession (auto tech for 40+yrs) to have the heads pressure tested especially aluminum heads due to the fact that a lot of times it is not only the gaskit that fails. It's just cheap insurance if nothing else.

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Re: 84 gl1200 smoke issue

Postby rcgreg » Tue Aug 02, 2011 8:16 am

They do the pressure test at the machine shop?




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