BMW K bikes (Bricks)

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1Back to top Go down    coolant overflow! on Mon Nov 30, 2015 3:31 pm

eire1400

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I want to replace my coolant overflow tank and move it up close to the down tube on the right (behind airbox snorkel).
I've seen a few examples and was thinking of going with a 750mm steel sports bottle. Question is anyone got any ideas for connecting the hose? Obviously I'm going to have to drill a hole at the bottom, but after that how to connect hose? Thanks in advance.

    

2Back to top Go down    Re: coolant overflow! on Mon Nov 30, 2015 3:41 pm

92KK 84WW Olaf

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The ideal is if you have a spigot or short stub protruding from the new coolant tank that will accept the connecting hose from the radiator. You just may be able to get someone to do some welding but I would think either stainless steel or plastic may work and even better if you could use a stock item from some other manufacturer.

You will need a spigot or short length of pipe protruding from the bottom of the new 'tank' of the same dimensions as the one on your K coolant bottle. I imagine a sports bottle is too thin to be welded.......but maybe some other motorcycle coolant expansion tank?


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 84,600 miles
1983 K100RS 0011175 Fricka 29,000 miles Damn K Pox
    

3Back to top Go down    Re: coolant overflow! on Mon Nov 30, 2015 3:55 pm

Chocolate

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Should be easy, you will find that in any country in a homedepot/construction market.

Plug & Play

Cheers



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Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

4Back to top Go down    Re: coolant overflow! on Mon Nov 30, 2015 4:46 pm

Motorbike Mike

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If the bottle is made of aluminium you could drill a hole to take a short piece of alloy tube and "solder" it in yourself with Lumi-weld. It can be done with some care and a blow lamp. Try it on some scrap first.

http://www.ebay.co.uk/itm/Lumiweld-5-Rod-Kit-Low-Temp-Aluminuim-Repair-/260531563568?hash=item3ca8e42c30:g:3~oAAOxyJX1TCfx3

Here's a practical example.

    

5Back to top Go down    Re: coolant overflow! on Mon Nov 30, 2015 5:52 pm

eire1400

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Espresso wrote:Should be easy, you will find that in any country in a homedepot/construction market.

Plug & Play

Cheers


The very thing. What would you call them? What they used for?

    

6Back to top Go down    Re: coolant overflow! on Mon Nov 30, 2015 6:14 pm

Chocolate

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# Hello eire1400, sorry I don't know the name even in German :-) I used to describe what I want.

We use it to catch rain in a barrel and I use it for my drinking bottle on long journeys with my bicycle on the top is a holle and at the bottom a kind of drinking straw.

What I googled was "tube to bottle" something like that, I'm sure you find better English words :-)

And in the end, a good German or Irish beer barrel hast the same function!

Cheers







http://illiweb.com/fa/pbucket.gif




__________________________________________________
Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

7Back to top Go down    Re: coolant overflow! on Mon Nov 30, 2015 6:35 pm

sidecar paul

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If you can't find one of those fittings, you could use a tyre valve without the insert.

Paul.


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'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015)
....No CARS never ever!
    

8Back to top Go down    Re: coolant overflow! on Mon Nov 30, 2015 9:25 pm

92KK 84WW Olaf

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Looks like Espresso got a right dose of Kork when he lived over here for 4 years......


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 84,600 miles
1983 K100RS 0011175 Fricka 29,000 miles Damn K Pox
    

9Back to top Go down    Re: coolant overflow! on Tue Dec 01, 2015 3:09 am

Chocolate

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# Yes Olaf,
learned a lot in Ireland and I enjoyed very friendly people and girls :-)

Cheers

I was thinking of a very easy other way, to connect a tube
A screw with a hole, you could even use the parts from the braking system, if you have left.








__________________________________________________
Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

10Back to top Go down    Re: coolant overflow! on Tue Dec 01, 2015 6:19 am

eire1400

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Thanks for the excellent suggestions folks. I'm thinking similar to the gold bottle inEspresso6th post might be easiest way around it!

    

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