general maintenance... almost done


Information and questions on GL1500 Goldwings (1988-2000)
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OnPapasWing
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general maintenance... almost done

Postby OnPapasWing » Sun May 04, 2014 8:31 pm



I just got the bike back together tonight after doing some general maintenance, among other things. LED's in radio, LED's in lower lamps up front, oil change, filters of all kind, new plugs, some new gaskets for the carb. Bought some new timing belts but opted not to install them just yet (which is the "almost done" part).
Problems I had prior to work being done was that it would not idle right and even after riding for a few miles I had to continue to roll on the throttle a bit to keep it from stalling out when idling, like at a light.
After the work was done I took it for a spin and this thing started right up without even using the choke. Would idle consistently at about 800 rpm and ran like a raped ape!! This thing is a rocket. I was impressed and even more so that I did the work myself. Thanks to this great forum.

The only thing I noticed (but was the same even before the work was done) was that I could detect a smell of coolant. The temp gage stayed where I would expect it (below the half way point) and I have never seen a leak. Not sure if this is normal on these bikes. I will change the coolant when I do the timing belts so maybe this is all she needs. Thoughts?



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Mh434
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Re: general maintenance... almost done

Postby Mh434 » Tue May 06, 2014 1:04 am

Hmmm. The last time I changed coolant on a bike (Kawasaki Concours, last summer), the bike smelled of coolant for a couple of months, even though it was watertight & never leaked a drop. Although, in your case, I take it you haven't opened up the cooling system? Regardless, even a few drops of antifreeze, spilled on any engine parts that get warm, will reek for quite a while.

BTW - a reminder to use ONLY silicate-free (eg., Honda M/C-use) antifreeze...

OnPapasWing
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Re: general maintenance... almost done

Postby OnPapasWing » Tue May 06, 2014 5:22 am

Nope, haven't had ip open yet. Thanks for the heads up on the type.

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Mh434
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Re: general maintenance... almost done

Postby Mh434 » Tue May 06, 2014 1:18 pm

A while back I heard about a whole lot of water pump failures, particularly in Goldwings. In virtually every single case, these failures occurred immediately after changing out the coolant as a preventative maintenance task.

Honda apparently tried to replicate the problem, and were utterly unable to do so. Of course, they were using Honda non-silicate antifreeze for their testing...

No one has been able to definitively link automotive-style antifreeze to motorcycle water pump failures...except that, in apparently over 99% of cases of pump failure, a) a coolant change had just been done, and b) automotive antifreeze (containing silicate abrasives for cleaning coolant passageways) was used.

I'm sure many (probably most!) of the people here are aware of this issue, but it wasn't until I did a little research last night that I understood the extent of the problem.

Anyway, I figured that even though this has doubtless been posted here, a heads-up that saves someone a pump failure is worth the repetition...

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virgilmobile
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Re: general maintenance... almost done

Postby virgilmobile » Tue May 06, 2014 4:04 pm

While you have it in the service mode...add a volt meter.....

OnPapasWing
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Re: general maintenance... almost done

Postby OnPapasWing » Wed May 07, 2014 11:27 am

virgilmobile wrote:While you have it in the service mode...add a volt meter.....


I already have a voltmeter but it's not to stable and I'm questioning its accuracy (analog). So I've ordered an LED meter to put in its place. I'll get a pic out once it's installed. Still waiting for it to come in.

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virgilmobile
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Re: general maintenance... almost done

Postby virgilmobile » Wed May 07, 2014 1:24 pm

Its so much easier to read a number that focus on a needle position.
Given that,don't worry so much about the tenths of a volt.
Its of interest when the reading suddenly drops.
I see mine vary from 13.2 to 14.1
Should it drop to 12.5 or so while I'm driving...I've got a problem that needs attention .

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SteveB123
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Re: general maintenance... almost done

Postby SteveB123 » Wed May 07, 2014 6:57 pm

Mh434 wrote:A while back I heard about a whole lot of water pump failures, particularly in Goldwings. In virtually every single case, these failures occurred immediately after changing out the coolant as a preventative maintenance task.

Honda apparently tried to replicate the problem, and were utterly unable to do so. Of course, they were using Honda non-silicate antifreeze for their testing...

No one has been able to definitively link automotive-style antifreeze to motorcycle water pump failures...except that, in apparently over 99% of cases of pump failure, a) a coolant change had just been done, and b) automotive antifreeze (containing silicate abrasives for cleaning coolant passageways) was used.

I'm sure many (probably most!) of the people here are aware of this issue, but it wasn't until I did a little research last night that I understood the extent of the problem.

Anyway, I figured that even though this has doubtless been posted here, a heads-up that saves someone a pump failure is worth the repetition...


Silicate ABRASIVES in coolant?

No.
Silicate compounds are (well, were) used for aluminum corrosion protection.

Liquid cooled engines don't know how many wheels are on the vehicle they drive.
Current:82 GL1100 Interstate, 60 Amp Poorboy, MSD coil
Previous: 93 GSX1100F Katana
82 GL500 Silverwing

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Mh434
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Re: general maintenance... almost done

Postby Mh434 » Wed May 07, 2014 11:19 pm

I have zero experience in this myself, this is just from a report I read, and the investigator reported that silicates were added by Prestone, et al, for both corrosion resistance and abrasive removal of cooling system deposits.

Like I said, I'm merely reporting the results of an investigation into cooling system failures. Presumably, automotive water pumps are more forgiving than some motorcycle ones (I don't think the number of wheels enters into it...).

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Re: general maintenance... almost done

Postby WingAdmin » Thu May 08, 2014 9:56 am

Mh434 wrote:I have zero experience in this myself, this is just from a report I read, and the investigator reported that silicates were added by Prestone, et al, for both corrosion resistance and abrasive removal of cooling system deposits.


That's correct.

I presume the Wing pumps have delicate seals that can easily handle coolant, but that are quickly eroded by the abrasive effects of the silicate additives, leading to intrusion of coolant into the bearings and subsequent pump failure.

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Mh434
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Re: general maintenance... almost done

Postby Mh434 » Thu May 08, 2014 12:40 pm

This issue also came up on a Kawasaki Concours forum (where I first heard about the issue), as a result of a series of sudden and mysterious Connie water pump failures. The situation was precisely the same as that reported about Goldwings & automotive coolants.

OnPapasWing
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Re: general maintenance... almost done

Postby OnPapasWing » Fri May 09, 2014 5:48 am

virgilmobile wrote:Its so much easier to read a number that focus on a needle position.
Given that,don't worry so much about the tenths of a volt.
Its of interest when the reading suddenly drops.
I see mine vary from 13.2 to 14.1
Should it drop to 12.5 or so while I'm driving...I've got a problem that needs attention .


The new digital gage is in and it is rock solid, around 13.8v or so. The thing I noticed was that while idling at a stop light the voltage drops to somewhere around 12.1 to 12.3, but occasionally stays up around 12.8. Normal? Pics to come.

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Re: general maintenance... almost done

Postby virgilmobile » Fri May 09, 2014 9:44 am

I would say it's normal...maybe not exact,but normal....
The only way to verify is to compare it to another DVM reading directly across the battery...

There can be some voltage loss in the wiring that your meter is attached to....Also the voltage drop will change depending on the load on that circuit...Apply the brakes and the drop may increase by a tenth or two....
The alternator,at a idle,puts out less than at 750 rpm than 950 rpm so seeing 12.1 volts on a accessory switched line probably is close....
At the same time you may see 12.9 volts at the battery.
Keep in mind...the display won't change from 13.8 to 13.9 until the input voltage exceeds 13.89...
Be sure the bike is idling at the recommended rpm...I know mine will idle down below 500 rpm fine but I keep it closer to the 8-9 hundred area....

Be more concerned if the volts drop to the 12 volt range when the bike is running down the highway and it should be closer to 14 volts...That's the sign of a problem..
At a idle,brakes on and off,blinkers and radio running,phone charging....the volts can bounce around a bit

I'm tempted to cover up the tenths of a volt number on mine and just watch the main numbers...less than12 is bad,13 and 14 are good and 15 is bad....The tenths seem to be a distraction..I end up agonizing over a few tenths of a volt....

OnPapasWing
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Re: general maintenance... almost done

Postby OnPapasWing » Fri May 09, 2014 4:11 pm

Sounds logical. I did try things like turning the radio off, turning lights off (side bag lights are switched) and such. Seemed to help a little, just wasn't sure about that level at idle. The meter has a separate warning light that will turn on (red) when the voltage reaches 11.5v. I'm much happier with the new volt meter though. I'll get pics and product info soon.




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