Rad must be hot top and bottom both sides.
Rad must be hot top and bottom both sides.
Is the rad hot across the top and cold across the bottom after warm up?
So it is generally hot across the top but cold across the bottom?
Looking from the front of the car, hot coolant enters the rad from the right hand hose, it should then go down the right hand side of the rad and up the left hand side back to the engine. If the rad is generally hot across the top but cool across the bottom either the rad has no baffle in it or the baffle has failed.
If the baffle is not present coolant just flows across the top of the rad and never gets cooled. You can check for a baffle by dropping a marble in one side and tilting rad. Marble should not roll across to the other side. Baffle should stop it. Make sure new rad has a baffle there are some about that don't have one. If it has no baffle it's as useful as tits on a Mars bar. Nissens rads are good and have the baffle.
RangeRoller dt
Well-Sprung Member
Once it’s off check stat isn’t stuck/renew same time.
I used cheap stat with small hole drilled back when we did head sensors, and I’m still fine.
I used cheap stat with small hole drilled back when we did head sensors, and I’m still fine.
RangeRoller dt
Well-Sprung Member
I understand, I had similar issues before I tackled my cooling system and followed your threads accordingly.
If you are concerned it’s head then you can get a dye that shows up combustion gasses in water cheap enough. Personally I don’t think it’s that, you had the head off last time
If you are concerned it’s head then you can get a dye that shows up combustion gasses in water cheap enough. Personally I don’t think it’s that, you had the head off last time
Good luck.
RangeRoller dt
Well-Sprung Member
New 
New as Wammers yes.
New as Wammers yes.
RangeRoller dt
Well-Sprung Member
You’ll like the one about UJ like a whippet Henry lar
Tits on a Mars bar?!
Thats a new one!!!!
No i have been using it for a very long time, since possibly well before you were born.
