M
mynheers_a_pint
Guest
ok this has me stumped and a little worried.
the new engine is fully run in and aside from a dodgy temp sensor, everything seems to work ok. I know the temp sensor is wrong as it will read halfway if the car is left in the sun without driving it!
However, this afternoon i drove home from work, not unlike any other day. I gave it a short burst of vigor on the motorway but that was all. The temp sensor did it's usual thing of reading normal from start then going to the top end of the gauge after 10-15 mins of driving. I got home and popped the bonnet as i regularly do to make sure things are ok and check the hoses just in case. Well the bottom hose was quite hard and this worried me a little. I had previously sat in the queue for Japfest a month ago for over an hour and while the gauge was reading hot, the fans were kicking in and the hoses were soft and never too hot to touch.
The cooling system was thoroughly bled and i have done it a couple of times before twigging that the sensor was borked. When i found this, i imediately thought it was a possible airlock so got to it and despite being hot bled it, only to find no trapped gasses. Next was the thermostat which i pulled out and threw in the kettle, only to find that too was functioning. I will replace it anyway as it doesn't seem to close properly but that's far from the issue. So i put it back together and finished by starting the car with the rad cap removed to fully bleed the system. My next concern was that i found a slow bubbling of the coolant. Just a bubble every 10 or so seconds but should i be worried about this? I'll try it again when it is cold but is there anything i should consider?? All the engine faces were flat when put together and i used an HKS 1.2mm gasket. Could it be a leak somewhere letting air into the system? I haven't really got time to investigate fully myself, so some direction would help!
Thanks... :doh:
the new engine is fully run in and aside from a dodgy temp sensor, everything seems to work ok. I know the temp sensor is wrong as it will read halfway if the car is left in the sun without driving it!
However, this afternoon i drove home from work, not unlike any other day. I gave it a short burst of vigor on the motorway but that was all. The temp sensor did it's usual thing of reading normal from start then going to the top end of the gauge after 10-15 mins of driving. I got home and popped the bonnet as i regularly do to make sure things are ok and check the hoses just in case. Well the bottom hose was quite hard and this worried me a little. I had previously sat in the queue for Japfest a month ago for over an hour and while the gauge was reading hot, the fans were kicking in and the hoses were soft and never too hot to touch.
The cooling system was thoroughly bled and i have done it a couple of times before twigging that the sensor was borked. When i found this, i imediately thought it was a possible airlock so got to it and despite being hot bled it, only to find no trapped gasses. Next was the thermostat which i pulled out and threw in the kettle, only to find that too was functioning. I will replace it anyway as it doesn't seem to close properly but that's far from the issue. So i put it back together and finished by starting the car with the rad cap removed to fully bleed the system. My next concern was that i found a slow bubbling of the coolant. Just a bubble every 10 or so seconds but should i be worried about this? I'll try it again when it is cold but is there anything i should consider?? All the engine faces were flat when put together and i used an HKS 1.2mm gasket. Could it be a leak somewhere letting air into the system? I haven't really got time to investigate fully myself, so some direction would help!
Thanks... :doh: