changing rad coolant


Information and questions on GL1100 Goldwings (1980-1983)
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Nick Golfwing
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Motorcycle: 1983 Goldwing GL11

changing rad coolant

Postby Nick Golfwing » Tue Jun 08, 2010 7:17 am



I want to change my rad coolant. I can see were the drain plug is to empty.My question is do I pour the coolant through the reservoir to fill it up. Or is there an actual rad cap on the radiater that is buried under the fairing. Thanks Nick



zvacman
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Motorcycle: 1982 GL1100 Interstate

Re: changing rad coolant

Postby zvacman » Tue Jun 08, 2010 10:30 am

There is a DYI on here somewhere. It is dead on accurate right down to how the coolant will come out. The only thing I would add is to not completely remove the radiator cap, kind off hold it in the opening to minimize the gushing of coolant. Takes a little more time but way less of a mess.

Z

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WingAdmin
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Re: changing rad coolant

Postby WingAdmin » Tue Jun 08, 2010 12:32 pm

Here you go:

How to flush the your cooling system

As for the gushing...I suppose it depends on how large your drain pan is. I have a massive pan that can catch the stuff even if it's gushing out. :) But good point, leaving the radiator cap in place will slow the draining to keep it from making too much of a mess otherwise.

zvacman
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Re: changing rad coolant

Postby zvacman » Tue Jun 08, 2010 2:16 pm

When I drained mine it was blasting against the front tire and going everywhere that's why I kept the cap on loosely and slowly allowed air in.

Z

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WingAdmin
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Re: changing rad coolant

Postby WingAdmin » Tue Jun 08, 2010 9:35 pm

Interesting. You can see mine draining here, I had the front wheel turned to one side, and the radiator cap was off, but it's definitely not blasting out:

Image

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scratcho
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Re: changing rad coolant

Postby scratcho » Tue Jun 08, 2010 10:25 pm

Interesting, should you use the old style green or new pink antifreeze?

zvacman
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Re: changing rad coolant

Postby zvacman » Wed Jun 09, 2010 1:19 am

That's really wierd, mine would have gone three feet if the tire wasn't in the way! That's why I held the cap over the opening. Nice pan by the way I have the same one only black.

Z

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WingAdmin
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Re: changing rad coolant

Postby WingAdmin » Wed Jun 09, 2010 3:13 pm

scratcho wrote:Interesting, should you use the old style green or new pink antifreeze?


It doesn't matter, as long as it is silicate-free. I have heard a lot of horror stories of failed water pumps however, so I figured I would spend a few extra dollars and use the Honda antifreeze, to eliminate all chance of mistake.

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N2PPN
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Re: changing rad coolant

Postby N2PPN » Thu Jun 10, 2010 2:00 pm

I have had personal experience with DexCool (red antifreeze) I personally don't like or recommend it.


It has very strange properties and unless your engine has been SPECIFICALLY designed for it's usage, will give you more trouble than you can handle. GM has special cooling systems designed just for DexCool.

I have two older vehicles (of the four wheel kind) that I changed over to DexCool. BOTH vehicles suffered from failed water pumps within weeks of changeover and one had to have the heater core replaced due to DexCool's interesting tendency to turn into JELLY-LIKE consistency when exposed to certain contaminants. One such containment is AIR!!!

If you have ANY air trapped in your cooling system, it turns DexCool into jelly and clogs up your radiator and robs your water pump's bearings and seals of their lubrication. This leads to BIG problems.

I remember when water pumps on cars lasted for 100K miles before needing replacement, now you are lucky to get 40K with DexCool.

So in my humble opinion (IMHO), I would steer clear from anything other than GREEN antifreeze mixed with distilled water. It will last for several years, and it is not going to cause abnormal and premature failures of cooling system components.


Just my $0.02 worth....


Rich


Don't Worry,
Ride Happy!


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