BMW K bikes (Bricks)

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1Back to top Go down    Coolant Leak on Sat Jun 24, 2017 2:42 am

Bunyak100

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II have noticed a green coolant drip under the front of Engine it is just a drip even 2 hours or so but annoying, can anyone help as to where it may be coming from before Get in for closer inspection.

    

2Back to top Go down    Re: Coolant Leak on Sat Jun 24, 2017 3:11 am

RicK G

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Just where the arrow points there is a small hole(3mm) which leads up to the air space between the coolant pump and oil pump seals and your coolant pump is leaking and dripping from that hole.
Your lucky as often that hole gets blocked with crud and the coolant get past the oil seal and into the oil.


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"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

3Back to top Go down    Re: Coolant Leak on Sat Jun 24, 2017 7:46 am

Bunyak100

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Thanks Rick should I remove pump and try and rectify?

    

4Back to top Go down    Re: Coolant Leak on Sat Jun 24, 2017 8:38 pm

RicK G

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Get a Kit first and that way it only takes a few hours
https://www.motobins.co.uk/bmw-parts.php?model=K%20Series&bikeref=K100 Plus the impeller.
If you have access to a lathe you can take 3mm off the boss of the impeller if it is a cast one
Munich Moto in Perth will have the kit at a higher price but take a few days less to get it.
Be warned you could also be up for a shaft if the present one is badly rusted but as the oil seal is not leaking it probably is OK.

PS put your Model and VIN in your signature line it saves having to go looking to find the model and you don't have to include it in posts


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

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