The sorry saga of the 1200 GS/GSA coolant pump failure

I just don't get WMB, this is a well known issue and yet they carry on with the same flawed design - what's their problem :mad:

Andres
 
You must have put in coolant of incorrect viscosity.....so, which coolant is best and where can I buy it?
 
I've just looked at my bike and mine must have fallen off!!! :eek:
 
The MK1 version of any model car or bike is to be avoided, it's new and the owners are the testers.

The Mk2 has all the problems sorted out. :thumb2

The Mk3 is the cost cutting accountants version.

The MK 4 is the same cost cutting accountants version but now badged as special editions.
 
IF the heads and barrels are cooled by two separate rads which are higher up ( it would be hard to find anywhere lower down to mount them) there should be no need for a pump/s as gravity should do the job. And before anyone says that there is a oil pump that is a different system. The oil pump is to provide pressure as it's primary function. JJH
 
JJH said:
IF the heads and barrels are cooled by two separate rads which are higher up ( it would be hard to find anywhere lower down to mount them) there should be no need for a pump/s as gravity should do the job. And before anyone says that there is a oil pump that is a different system. The oil pump is to provide pressure as it's primary function. JJH
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:tumbleweed
 
JJH said:
IF the heads and barrels are cooled by two separate rads which are higher up ( it would be hard to find anywhere lower down to mount them) there should be no need for a pump/s as gravity should do the job. And before anyone says that there is a oil pump that is a different system. The oil pump is to provide pressure as it's primary function. JJH
Click to expand...


What utter rubbish.

If the watercooled GS doesn't have a waterpump i'll shave off all my body hair and eat it.
 
Steptoe said:
What utter rubbish.

If the watercooled GS doesn't have a waterpump i'll shave off all my body hair and eat it.
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As we speak I am submitting a highly technical proposal to BMW relating to the "waterpumpless" boxer cooling system I have just designed, sole purpose not to make the system more efficient, but just to call in Steptoes generous *ahem* "offer".

I suspect we might all be watching developments closely
 
Steptoe said:
What utter rubbish.

If the watercooled GS doesn't have a waterpump i'll shave off all my body hair and eat it.
Click to expand...

A little bit strong. RUBBISH? Feasible and used by many manufactures over the years. Not lately but how many bikes could it be used on? The boxer is ideal so is the wing but that is a Honda and when did they leave something out if they could use 2 or 3? JJH
 
JJH said:
A little bit strong. RUBBISH? Feasible and used by many manufactures over the years. Not lately but how many bikes could it be used on? The boxer is ideal so is the wing but that is a Honda and when did they leave something out if they could use 2 or 3? JJH
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BMW K series bikes. Do they or do they not have a water pump despite having all your "pumpless" qualifications. :D

They use a combined water/oil pump.
 
JJH said:
IF the heads and barrels are cooled by two separate rads which are higher up ( it would be hard to find anywhere lower down to mount them) there should be no need for a pump/s as gravity should do the job. And before anyone says that there is a oil pump that is a different system. The oil pump is to provide pressure as it's primary function. JJH
Click to expand...

JJH said:
A little bit strong. RUBBISH? Feasible and used by many manufactures over the years. Not lately but how many bikes could it be used on? The boxer is ideal so is the wing but that is a Honda and when did they leave something out if they could use 2 or 3? JJH
Click to expand...

Point of order :rob

This is a serious thread! Please do not post such irreverant and iconsequential pish :pullface

Andres
 
Steptoe said:
BMW K series bikes. Do they or do they not have a water pump despite having all your "pumpless" qualifications. :D

They use a combined water/oil pump.
Click to expand...

There might be a circulation issue with the k but with 1 cillinder and head it could work. I expect there to be impeller my self but I think the subject is worthy of debate JJH
 
JJH said:
There might be a circulation issue with the k but with 1 cillinder and head it could work. I expect there to be impeller my self but I think the subject is worthy of debate JJH
Click to expand...

Do you carry a flask of weak lemon drink with you at all times? :pullface
 
Nippy Normans supply Touratech, Wunderlich, Desert Fox and many other makes of accessories.
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