Radiator flush out


Information and questions on GL1200 Goldwings (1984-1987)
  • Sponsored Links
crimsonwing
Posts: 85
Joined: Tue Mar 22, 2016 4:05 pm
Location: san diego, CA
Motorcycle: 1984 GL1200I Interstate

Radiator flush out

Postby crimsonwing » Sun Apr 10, 2016 12:46 pm



hey all, im in the middle of doing the poorboy conversion ans when i took the radiator off all the coolant started coming out, then after a couple of minuess some brown goop started coming out too. the same stuff that i saw on the cap when i took it off. My brother said it might be oil getting in from the headgasket. I do have very leaky valve covers and i always see it dripping down to the direction, but my brother is afraid that the valve cover leak is just a bigger problem coming from the head gasket, but maybe the coolant just hasnt been changed in a while,any thoughts? also what product is safe to use for a flush out? ans what type of coolant? i bought prestone 50/50 for"all makes and models" with corrosion inhibitors or something like that, is that ok?



harvey01
Posts: 629
Joined: Thu May 31, 2012 7:14 pm
Location: Henrico, Virginia
Motorcycle: 2004 GL1800

Re: Radiator flush out

Postby harvey01 » Sun Apr 10, 2016 2:55 pm

I try to always use the Honda Premix coolant. It is silicate free and designed for the aluminum engines. Plus it is very easy to use.

But most silicate free coolants will work. I would not encourage a long life coolant especially since you will be checking and adjusting for a while.

I have used radiator flushes sold over the counter but would urge you to use only distilled water in the coolant system,
harvey
Ride Safe and Ride Often

crimsonwing
Posts: 85
Joined: Tue Mar 22, 2016 4:05 pm
Location: san diego, CA
Motorcycle: 1984 GL1200I Interstate

Re: Radiator flush out

Postby crimsonwing » Sun Apr 10, 2016 3:11 pm

okay thanks for the prompt reply!

User avatar
skier
Posts: 154
Joined: Sun Jul 17, 2011 11:57 am
Location: Coon Rapids MN
Motorcycle: 1987 GL1200I 124k
2009 Honda Silverwing 14k -- the wife's scooter

Re: Radiator flush out

Postby skier » Sun Apr 10, 2016 4:03 pm

I think there could be a slight chance that oil could be getting into the coolant through the water pump. The following thread discusses how this possibly happen, although remote: viewtopic.php?t=12280

crimsonwing
Posts: 85
Joined: Tue Mar 22, 2016 4:05 pm
Location: san diego, CA
Motorcycle: 1984 GL1200I Interstate

Re: Radiator flush out

Postby crimsonwing » Tue Apr 12, 2016 10:28 pm

thanks again for all the replies it means a lot to me guys. i just realized something, ive been riding with this oil leak for over a year now and my bike seems to function just as i first got it. Now i know having oil leak into the cooling system can kill the engine but, do you all think this is the case considering how long ive been riding without fixing the leak? i mean maybe i was damaging it by riding this past year, but what is the likely hood of that? please give me your two cents!

User avatar
twocams
Posts: 554
Joined: Tue Sep 29, 2015 11:25 am
Location: Grants Pass, Oregon
Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
Sold : 84 V65 Magna, 82 Moto Guzzi, XS 1100 Yamaha,84 Wing Int., 80 650 Special, Only new bike 82 XV750 Virago (Guam),Honda 250,84 R100RT BMW,87 K100 LT BMW,93 K1100 LT BMW, 91 535 Virago, Honda 50

Re: Radiator flush out

Postby twocams » Tue Apr 12, 2016 11:45 pm

You need to fix the leak. If its getting oil in the coolant it can get coolant in the oil. That can wipe out your bearings, crank and cam. So just keep riding it and see if you can make it another year. :shock:

twocams

User avatar
twocams
Posts: 554
Joined: Tue Sep 29, 2015 11:25 am
Location: Grants Pass, Oregon
Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
Sold : 84 V65 Magna, 82 Moto Guzzi, XS 1100 Yamaha,84 Wing Int., 80 650 Special, Only new bike 82 XV750 Virago (Guam),Honda 250,84 R100RT BMW,87 K100 LT BMW,93 K1100 LT BMW, 91 535 Virago, Honda 50

Re: Radiator flush out

Postby twocams » Tue Apr 12, 2016 11:48 pm

You need to fix the leak. If its getting oil in the coolant it can get coolant in the oil. That can wipe out your bearings, crank and cam. So just keep riding it and see if you can make it another year. :shock: or not!!

twocams

crimsonwing
Posts: 85
Joined: Tue Mar 22, 2016 4:05 pm
Location: san diego, CA
Motorcycle: 1984 GL1200I Interstate

Re: Radiator flush out

Postby crimsonwing » Tue Apr 26, 2016 2:09 am

hey guys, so im going to change the head gaskets as this might be the main cause of the oil sneaking in my coolant. Where do i get them from exactly? is there a kit available?

crimsonwing
Posts: 85
Joined: Tue Mar 22, 2016 4:05 pm
Location: san diego, CA
Motorcycle: 1984 GL1200I Interstate

Re: Radiator flush out

Postby crimsonwing » Tue Apr 26, 2016 2:09 pm

also, do i need a new water pump for sure since there is oil in cooling system? or would a good flush do? if so, should i get a new thermostat since i will be replacing water pump anyway?(if i have to)

User avatar
salty1
Posts: 90
Joined: Wed Aug 20, 2014 4:32 pm
Location: Spokane, Wa/Tucson, Az
Motorcycle: 98 GL1500 C, 00 GL1500CF, 06 GL1800 3A

Re: Radiator flush out

Postby salty1 » Tue Apr 26, 2016 2:33 pm

If you replace the water pump, you might as well change the stat. To answer your question on the actual coolant, the Prestone you bought will work just fine as it is silicate free. I've been using it in my bikes for quite awhile now. The Wing Admin. even mentioned Prestone coolant in one of his post not to long ago.

User avatar
salty1
Posts: 90
Joined: Wed Aug 20, 2014 4:32 pm
Location: Spokane, Wa/Tucson, Az
Motorcycle: 98 GL1500 C, 00 GL1500CF, 06 GL1800 3A

Re: Radiator flush out

Postby salty1 » Tue Apr 26, 2016 3:11 pm

If you replace the water pump, you might as well change the stat. To answer your question on the actual coolant, the Prestone you bought will work just fine as it is silicate free. I've been using it in my bikes for quite awhile now. The Wing Admin. even mentioned Prestone coolant in one of his post not to long ago.

crimsonwing
Posts: 85
Joined: Tue Mar 22, 2016 4:05 pm
Location: san diego, CA
Motorcycle: 1984 GL1200I Interstate

Re: Radiator flush out

Postby crimsonwing » Tue Apr 26, 2016 4:13 pm

thanks salty1, im glad im using the right coolant. I hope i dont need a new water pump though, i mean, why would i really> if it still works with a flow test should i be fine? also, do i just orer both head gaskets? do I not need any other seals, nuts, etc? if so, i would much rather just buy i kit with everything i need included. on westernhonda i found "GASKET, CYL HD 12251-MG9-306 (replaces 12251-MG9-000)" and " GASKET, HEAD COVER 12328-MG9-000" im not sure which of these i need, and if these are the only things i need if im doing the head gaskets.

crimsonwing
Posts: 85
Joined: Tue Mar 22, 2016 4:05 pm
Location: san diego, CA
Motorcycle: 1984 GL1200I Interstate

Re: Radiator flush out

Postby crimsonwing » Tue Apr 26, 2016 11:52 pm

also, What part numbers do i order from westernhonda if i want to replace the shiftshaft seal and the rear cam seals? i read on the forums that i should likely replace my valve stem seals and valve cover gaskets. is this recommended?

Rusty Bike
Posts: 269
Joined: Sun Feb 28, 2016 1:55 pm
Location: New castle, PA
Motorcycle: 86 GL1200 SEi, 78 Yamaha XS750SE, 86 Honda XL125, 4.5 HP belt drive Minibike my dad built, foot clutch!

Re: Radiator flush out

Postby Rusty Bike » Wed Apr 27, 2016 6:31 pm

Any time you open an assembly on a high mileage/old machine it is prudent to replace all common wear parts. This will prevent repetitive disassemble and down time...money. Part numbers are available on the web or from your Honda dealer.

crimsonwing
Posts: 85
Joined: Tue Mar 22, 2016 4:05 pm
Location: san diego, CA
Motorcycle: 1984 GL1200I Interstate

Re: Radiator flush out

Postby crimsonwing » Thu Apr 28, 2016 2:32 pm

alrighty, im just currently trying to gather all the part numbers needed to do that, i dont wanna order the wrong part and wait longer for another to ship in. can y'all give me any tips on getting the job done faster when parts come in? i don't wanna take my poorboy apart to do this is the main thing. anything helps, big or small!! how long am i looking here, a few hours? a few days?




Return to “GL1200 Information & Questions”




Who is online

Users browsing this forum: Outbound86 and 2 guests