MrMogensen
... That's me!
Was in the middle of disassembly to check the valve clearance, when I had the horrific discovery of the coolant looking very brown. First I thought it was oil, but then again I didn't notice any sign of coolant in that?
Found lots and lots of small bits of what could be rust in the coolant so that could explain the brownish color. I thoughr that it was the coolant system was all rubber and alloy?
Have removed the water pump cover as the bit of it covered by he big hose looked quite corroded. Inside the tube I could scrape out a thin layer of brown goo (rust)?
Some other day soon (when I have time) I will maybe take out the waterpump itself to inspect it.
Radiator also removed since I need to flush it. Looks all brown on the inside. Would like to flush out the whole system if possible. Maybe just water first and then flush with distilled water?
*What is the most likely cause of this - rust in my collant?
*Whats the best way of flushing? Will water run through the pump when the pump isn’t running?
Must admit it is nearly 6 years since I drained the coolant (last time I did the valve clearance check). The coolant I used was some "hybrid" ready to use stuff - dealer recommended it. I have the same kind in stock again.
***
Valve clearance was, on 14 measuring points spot on right in the middle of spec. The remaining 2 was just about spec (maybe 0,01mm above) so decided to leave the camshafts on and focus on the other issue.
Pulled off the generator cover. In my 14 years with the bike i have never done this. The cover shows more alloy than paint (a decade of stonechips) so it's about time to get it painted. Same thing with the pickup rotor cover on the other side.
Found lots and lots of small bits of what could be rust in the coolant so that could explain the brownish color. I thoughr that it was the coolant system was all rubber and alloy?
Have removed the water pump cover as the bit of it covered by he big hose looked quite corroded. Inside the tube I could scrape out a thin layer of brown goo (rust)?
Some other day soon (when I have time) I will maybe take out the waterpump itself to inspect it.
Radiator also removed since I need to flush it. Looks all brown on the inside. Would like to flush out the whole system if possible. Maybe just water first and then flush with distilled water?
*What is the most likely cause of this - rust in my collant?
*Whats the best way of flushing? Will water run through the pump when the pump isn’t running?
Must admit it is nearly 6 years since I drained the coolant (last time I did the valve clearance check). The coolant I used was some "hybrid" ready to use stuff - dealer recommended it. I have the same kind in stock again.
***
Valve clearance was, on 14 measuring points spot on right in the middle of spec. The remaining 2 was just about spec (maybe 0,01mm above) so decided to leave the camshafts on and focus on the other issue.
Pulled off the generator cover. In my 14 years with the bike i have never done this. The cover shows more alloy than paint (a decade of stonechips) so it's about time to get it painted. Same thing with the pickup rotor cover on the other side.
Attachments
Last edited: