[TR] removing rust in block et al

[Doug Mathews]

List,

Related on overheating...
My son has a Mercury Sable  and it would overheat, tranny shift 
funny, etc. So they took it to a shop and a $1,000+ later the shop 
declared all was well.  Head job, tranny flush, etc, etc. It seemed 
to be somewhat better but over time it resumed its bad overheating 
from time to time.

So when I got to the heat/ac course in my education at technical 
school, I volunteered their car for a project. Long story short, my 
instructor (a Ford master mechanic) watched it idle and watched the 
water in the radiator reservoir and said it thought we should look at 
the water pump. So off it came and guess what...the vanes were 
totally gone and it looked like thin blades turning in the water and 
you know how effective that was.  So that got replaced but I  figured 
if all that metal was gone it had to be somewhere and I guessed the 
heater core and radiator.  SO the radiator came out and I'd estimate 
that 20-25% of the lower cores were totally filled with shrapnel! So 
I put a new radiator on, back flushed the cooling system (block and 
heater core), exchanged tranny fluid and its been good as gold 
since.  They can even run the ac now!

My point is that id there is a bunch of "stuff" in the cooling 
system, I'd darn sure flush the heater core and radiator. When I had 
my TR4 motor rebuilt I had the radiator professionally cleaned and it 
would sit in the summer heat and idle all day with out any 
fluctuations in the guage.

Doug