I recently replaced my radiator with a new Moss-sourced unit. The old one
cooled well and I never had over-heating problems--as defined by the gauge
staying around the center, even in summer--but the darn thing was leaking at
seams. I had read in this forum of others putting in new rads and finding
much higher operating temperatures, and that has been my experience as well.
At highway speeds in the summer the gauge gets close to the "H," and never
gets close Others have said that as long as your're not losing fluid just
ignore the gauge, but the fact that this is happening--with no other changes
the car, leads me to believe the replacement rads are not as efficient. I
wonder is there is some sort of break-in procedure I should have done before
In a message dated 7/21/2005 6:23:40 P.M. Eastern Daylight Time,
My '71 MGB is my daily-use car. Summer, Fall, Winter, Spring.
I can tell you that you can't go in more than 6-inches of snow (studded
tires or no) because the wheels leave the ground.
About a month or so ago I had a new (if you believe my mechanic)
radiator put in. Since then the car has been running hot and with the
onset of real warm weather, I had to pull my thermostat other wise the
temp gauge went right up to the white square at "H".
But even without the thermostat, driving along at highway speeds
(70-75) she is still almost pegged at the "H".
Now, I'm ready to replace the water pump