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"K13GT" Technical Q&A K1300GT- Technical Questions/Answers

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  #1  
Old 06-28-2016, 12:55 PM
Paulvt1 Paulvt1 is offline
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Overheating.

Had a run out last week. Got stuck in traffic on the way back. Bike temp gauge went up to max - despite the fan kicking in. Got the red warning triangle - so stopped bike and waited for it to cool down.
Whipped the fairing off today and it looks like the rad is suspect. Loads of road gunk in it and a a palm sized area looks to have collapsed.
Have advised the dealer I bought it from and they have booked it in for a look. Hope it'll be covered under warranty - but I don't know if corrosion / wear and tear will be covered.
Any advise if it isn't?
I've coated the rad - front and back - with bike cleaner. I'm going to leave it to soak in overnight and attempt to wash out the crud with a garden hose tomorrow.
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  #2  
Old 06-28-2016, 03:11 PM
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bernardo bernardo is online now
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Re: Overheating.

Hi Paul

Usually our engines have no problems with overheat or cooling obstruction. I'm sure you use OEM coolant...

There are few problems but usually are little and imprceptible leaks. these leaks are almost impossible to detect at single sight. something like this:
- the engine warms and pressurizes the cooling system.
- with pressure, if it's a little crack or hole , the coolant drips out there,
- when the engine is cold there are vacuum then the air enters by that hole and the system is no more purged.
- With air in the system the engine works bad and finally there are overheating and coolant overflows.

so...

- Check the coolant level,
- look carefully any little stain or soil. not necessarily liquid,
- Change coolant and purge the cooling system with a vacuum tool.

I hope this helps you
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  #3  
Old 06-29-2016, 03:37 AM
Paulvt1 Paulvt1 is offline
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Re: Overheating.

Thanks for the pointers Bernardo.

I think the culprit is the amount of gunk in the rad itself. After an initial clean and rinse with a garden hose, it's looking much better. There should be much better air flow after I've finished.
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  #4  
Old 06-29-2016, 10:25 PM
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Re: Overheating.

The fins and passages are so fine they do collect a lot of crap. If your area uses odd winter de icing chemicals they tend to add to the mess. The radiator is a non listed maintenance item in my book. And to do a really good job you have to remove it. Your shop will probably tell you that a new one is needed rather than spend the hours needed to clean it out of the bike.
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  #5  
Old 06-30-2016, 10:11 AM
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Re: Overheating.

Quote:
Originally Posted by bernardo
Hi Paul

Usually our engines have no problems with overheat or cooling obstruction. I'm sure you use OEM coolant...

There are few problems but usually are little and imprceptible leaks. these leaks are almost impossible to detect at single sight. something like this:
- the engine warms and pressurizes the cooling system.
- with pressure, if it's a little crack or hole , the coolant drips out there,
- when the engine is cold there are vacuum then the air enters by that hole and the system is no more purged.
- With air in the system the engine works bad and finally there are overheating and coolant overflows.

so...

- Check the coolant level,
- look carefully any little stain or soil. not necessarily liquid,
- Change coolant and purge the cooling system with a vacuum tool.

I hope this helps you

Hum...not exactly Bernardo...(at least for the slant 4s, which I think your'e refering to).
Many Ks, including my previous 08 K1200GT, had a new radiator. And I'm not talking about all the BS my dealer told me in order to justify a 3 week stay at their shop...
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Old 06-30-2016, 11:53 AM
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Re: Overheating.

Quote:
Originally Posted by OILHEAD
Hum...not exactly Bernardo...(at least for the slant 4s, which I think your'e refering to).

Not at some model or brand, this sequence happens with all pressurized cooling systems
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Old 06-30-2016, 12:25 PM
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Re: Overheating.

Quote:
Originally Posted by Paulvt1
Thanks for the pointers Bernardo.

I think the culprit is the amount of gunk in the rad itself. After an initial clean and rinse with a garden hose, it's looking much better. There should be much better air flow after I've finished.

I've had a friend with a K1300S complain of a dirty radiator (on the outside) and overheating, and having to clean the "gunk" off. I agree that cleaning the outside of the radiator is a "non-listed" maintenance item. Any time I have the fairing around the radiator off the bike I take the opportunity to clean both sides as well as I can with a jet stream from the garden hose, and cleaning the front with a jet stream is part of every bike wash.
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  #8  
Old 06-30-2016, 01:22 PM
Paulvt1 Paulvt1 is offline
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Re: Overheating.

I might have solved the issue. After a good 3 days of soaking and rinsing, I've put the fan back on and run the bike up to temp. The fan kicks in and holds the temp gauge steady at the mid point.
I still have to put the fairing panels back on and give it a road test though...
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  #9  
Old 07-04-2016, 10:59 AM
Paulvt1 Paulvt1 is offline
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Re: Overheating.

Had a good run out today. Fast roads and urban heavy traffic. The bike ran like a dream.

I think we are starting to bond now.

Time to start looking at some goodies for it..
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  #10  
Old 07-04-2016, 11:27 AM
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Re: Overheating.

From what I've read over the years you folks over there have some pretty cruddy road in the winters. In addition the roads are peppered with salt which leads to corrosion of painted and suspension parts. Guess cleaning and washing off that stuff is part of your maintenance. I wouldn't pressure wash the radiator from the front which just forces the crud further in. I'd find some way of pressure washing from the back/ engine side.
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  #11  
Old 07-04-2016, 04:38 PM
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Re: Overheating.

I use a low power battery powered jet wash from behind the rads on my bike. If your bike has red or yellow coolant from Germany it should have a UV dye in it. Put your bike in the dark, and shine black light over the cooling system, this is easier than a system pressure check.
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