Originally Posted by
Maki
I had the same problem with my CVH when I had it... I did so many things and nothing helped. My conclusion was that my intercooler is blocking the air that should go to rad.
I had a sugestion to seal everything around the rad, so that air would be traped and had no other way to go just through the rad.... never done it as I changed to ZVH later, but you could give it a go.
if the electric fan is working it wont matter about the intercooler in front of it, the air will get dragged there anyway by the fan. must be something to do with rad tho because turning the heaters on is cooling the engine. in effect the heater matrix is doing the radiators job.
make sure there is water getting to the rad, check all the rad pipes are getting hot and feel the rad itself. make sure the fan is cutting in when it should.
is there a small return pipe coming from the top of the rad to the water bottle? if there is check this is not blocked because its a self bleed mechanism to stop the rad airlocking.