Honda gl1100a water pump?


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riddinglowcr
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Motorcycle: 1982 GL1100A Aspencade

Honda gl1100a water pump?

Postby riddinglowcr » Wed Jul 01, 2015 2:09 am



Hello everyone,

I had the bike parked for a while. I turned it on and went around for a couple of miles. I noticed a little water under the radiator before I did so but didn't think nothing of it, thought it was my small radiator hose leaking. Noticed some white smoke while riding. Came home and noticed that my oil was like brown chocolate color I stopped using it and got all the stuff ready for an oil change. Took all the oil out and the saw water coming out the oil drain. Drip and stop, drip and stop, drip and stop. Well checked the radiator and the water was going out the oil drain. Just to test I filled the radiator to the top again and still kept going drip and stop, drip and stop from the oil drain. What does this mean?
Is this my water pump? Water pump O-rings?
Wanted to know what is the mechanical seals?



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RBGERSON
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had every year from 75 to 83

Re: Honda gl1100a water pump?

Postby RBGERSON » Wed Jul 01, 2015 7:50 am

Most likely blown head gasket..and you are getting water in you cylinder(s)..don't let it sit like that it will ruin the cylinder(s). White smoke out the exhaust key indicator of blown head gasket.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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WingAdmin
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Re: Honda gl1100a water pump?

Postby WingAdmin » Wed Jul 01, 2015 8:08 am

Do a cylinder leakdown test, which involves pressurizing each cylinder via the spark plug hole, and waiting to see if it holds that pressure. If there is a gasket blown, it will be obvious which one is failed.

Also pull the spark plugs, you may find one of the spark plugs "steam cleaned" - bright and shiny, which will indicate that coolant is escaping past a failed gasket into that cylinder.

If these tests don't show an obvious culprit, then I suspect your problem is the water pump. Actually, the fact that you're finding water under the radiator, likely coming out of the weep hole of the water pump, points to a failed water pump internal seal, which would be responsible for the coolant in your oil. I'd be surprised if your problem is NOT a failed water pump.

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RBGERSON
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Re: Honda gl1100a water pump?

Postby RBGERSON » Wed Jul 01, 2015 12:53 pm

I wish someone could educate me on how a failed water pump gets water into the engine/oil. from what I can see/"know' the only access point in the water pump housing is back through the oil seal. But the weep hole would have to plugged in order for water to build up and be forced back through the oil seal. I don't see how that is very likely. Now if the gasket at the water pump and one of the dowels in there failed/leaked/sucked fluid somehow..I guess water and oil could mix??? But again not very likely.

So besides the above how can water get from the pump housing into the engine..am i missing something. I'd really like to know..
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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WingAdmin
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Re: Honda gl1100a water pump?

Postby WingAdmin » Wed Jul 01, 2015 1:30 pm

I can't answer your question - in theory, a failure on either seal should route the appropriate fluid out the weep (telltale) hole. That said, it most definitely does end up with coolant in the oil or oil in the coolant when the seals are seriously worn - perhaps there is enough pressure on either side to squirt the fluid both through the seals as well as out the weep hole?

riddinglowcr
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Location: Costa Rica
Motorcycle: 1982 GL1100A Aspencade

Re: Honda gl1100a water pump?

Postby riddinglowcr » Wed Jul 01, 2015 2:50 pm

Thank you all for the replies!

Let me do the pressure test on the cylinders...

riddinglowcr
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Re: Honda gl1100a water pump?

Postby riddinglowcr » Wed Jul 01, 2015 9:25 pm

I did the test with throttle fully opened. I have a 148-152 PSI within my cylinders.

Also I wanted to point out that I have no water on my radiator. I put some water in and let it drip out again today (water coming out the oil drain). I then opened the water drain after it stopped the (drip and stop, drip and stop, drip and stop -from the oil drain) and no water in the radiator.
Does this help to identify where my problem is?

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wingman12
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Re: Honda gl1100a water pump?

Postby wingman12 » Wed Jul 01, 2015 10:24 pm

I am not the expert that wing admin and rogerson is, but you may have multiple issues, however it appears from your information, you have a blown head gasket. The water pump seal between the crankcase and coolant would not cause the dripping out the oil drain that you have described. Do you have the leakage on the bottom of your engine that looks like the symptoms wing admin pictured? :D :D

riddinglowcr
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Re: Honda gl1100a water pump?

Postby riddinglowcr » Thu Jul 02, 2015 2:26 am

The weep hole? It's wet but it does not leak like the water coming out the oil drain.
I just added water again see if the weep hole drips.

riddinglowcr
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Re: Honda gl1100a water pump?

Postby riddinglowcr » Thu Jul 02, 2015 2:40 am

So far nothing. The weep hole is just wet like if water did come out before.

Also put the flash light real close to the oil drain hole and I noticed that the water is continuous it drips and stops because it's gotta get filled some for it to drip it out. Hope that's understandable.

I'm going to borrow another tester tomorrow and recheck the cylinders.

4wred
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Re: Honda gl1100a water pump?

Postby 4wred » Thu Jul 02, 2015 7:03 am

[quote="riddinglowcr"]I did the test with throttle fully opened. I have a 148-152 PSI within my cylinders.

You did a compression test,not a leakdown test. Different kind of test different tool needed.

riddinglowcr
Posts: 38
Joined: Tue Oct 05, 2010 3:10 pm
Location: Costa Rica
Motorcycle: 1982 GL1100A Aspencade

Re: Honda gl1100a water pump?

Postby riddinglowcr » Thu Jul 02, 2015 9:27 pm

Yes correct.. working on that one as well. I should have the results by tomorrow.




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