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still got bubbles
Posted: January 29th, 2011, 9:49 pm
by Gravel Scratcher
A while back i noticed my coolant had some bubbles and used a bit of coolant after a ride , no problem i thought as i replaced the oil / water seal at the water pump and head gasket while doing some maintenance. Next time out riding i noticed it was still happening. Pulled the head again, both the cylinder and head appear level. (checked with straight edge) What have i missed
Posted: January 30th, 2011, 10:28 am
by seanmx57
are you sure that bubles are not normal. It's called cavitation.
Posted: January 30th, 2011, 4:21 pm
by Gravel Scratcher
yeah i understand the cavitation thing but i'm coming back home and the coolant level has dropped to around the top of the radiator core fins. maybe time to put a overflow bottle on it to be sure where its going
Posted: January 30th, 2011, 4:35 pm
by britincali
Without an overflow all CR5's will puke coolant untill it settles out a few mm's over the rad core, filling the rads is pointless as it'll just spit it out untill it barely covers the core.
With an overflow the rad will stay full to the cap.
Posted: January 30th, 2011, 4:36 pm
by pstoffers
Gravel Scratcher wrote:yeah i understand the cavitation thing but i'm coming back home and the coolant level has dropped to around the top of the radiator core fins. maybe time to put a overflow bottle on it to be sure where its going
It is normal for it to be right at the top of the core. I say your good to go.
Posted: January 30th, 2011, 4:57 pm
by Gravel Scratcher
Thanks guys, just overfilling by the look of it
Posted: January 31st, 2011, 1:11 pm
by Kuma
britincali wrote:Without an overflow all CR5's will puke coolant untill it settles out a few mm's over the rad core, filling the rads is pointless as it'll just spit it out untill it barely covers the core.
With an overflow the rad will stay full to the cap.
Any suggestions on an overflow bottle, where to mount ect.?
Posted: January 31st, 2011, 2:43 pm
by britincali
A yamaha WR bottle fits real nice under the left side panel, thats what I have on my dune bike.
Posted: January 31st, 2011, 4:01 pm
by iggys-amsoil
pstoffers wrote:Gravel Scratcher wrote:yeah i understand the cavitation thing but i'm coming back home and the coolant level has dropped to around the top of the radiator core fins. maybe time to put a overflow bottle on it to be sure where its going
It is normal for it to be right at the top of the core. I say your good to go.
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