Cooling fan

[Hadyn]

does the fan run all the time or turn on only when riding for a long time i dont know if mine is working

[Inge K.]

The fan should start when the engine reaches 103^oC.
Not unusal that the fan is stucked, caused by to less use..........and high pressure washing equipment.

Inge K.

[WayneDW]

There is an easy way to jumper the wires in the junction box under the tank.  That will tell you if your fan runs or not.  I think those instructions are in the Lieberry area here.  Do a search and see if you can find it. Or maybe someone will link if for you.

[Inge K.]

There is an easy way to jumper the wires in the junction box under the tank.

Remove relay, and jump terminal 15 and A2.

Inge K.

[Hadyn]

thanks will try on day off

[Marky Boy OZ]

Hi guys,

I'm new to K1100 - my cooling fan is not working and is sticky.
The bike is pulled down - do I go straight out and get a new motor, or, is it possible to pull the motor down and clean it up.

Thanks

[Inge K.]

The most common problem with the fan motors is melted brush holders caused by seized or sticky  axle/motor.

[Motorhobo]

So since I don't think they even make rebuild kits for these crappy motors, your best bet is to buy a new fan motor from beemerboneyard.com or euromotoelectrics.com and swap the old with the new -- probably around $80. Search this forum for install details. Or go to the dealer and pay about $250 for a new fan assembly -- but while you're at the dealer don't drop the soap!

[Inge K.]

It would probably be cheaper to visit a Bosch dealer/workshop, if such a thing exist down under.

Fan motor: Bosch 0 130 007 027.

[bocutter Ed]

I'm new to K1100 - my cooling fan is not working and is sticky.
The bike is pulled down - do I go straight out and get a new motor, or, is it possible to pull the motor down and clean it up.

My K75 cooling fan was in the same condition when I got the bike year & a half ago. 'Sticky' was turning the fan by hand and the fan was spinning on a seized shaft.

It is 'possible' to remove the front cap from the fan motor, knock the armature from the cap, and polish the shaft. I lubed with 65% Moly. Don't know that I'd do it again.

[Kyle10]

Radiator fan replaced with Spal, possible fuel pump issue
http://www.motobrick.com/index.php?topic=2617.msg29578;topicseen#msg29578

This has worked great for me. Tons better than the OEM setup.

[Marky Boy OZ]

Well boys and girls, I tried my best to make a set of bushes (from and old set of starter motor bushes - with a Dremel)

I used a 2 part epoxy to remark the housings for the bushes.........

It all went back together well - but, I could not get continuity between the two terminals, I suspect I did not make a sure enough connection between the brushs and the terminals .  . . .

K Bike cooling system brushes




Oh well - I tried,,,,,,

I got a 12V 3100RPM electric motor with very similar dimensions off the net today for $31 AU delivered from Hong Kong.

I will post the results.....