Ok, after this subject has been beat to death several times, and after a lot of
reading, both reports, and manufacturing claims, and taking into account direct
experiences, I think I have figured out the main thing we need to so for our
vintage cars surviving this sort of modern automotive chemistry.
OVERFLOW tanks, of any sort that allows an overflow radiator cap AND fluid
maintained in the tank. THE reason seems to be that NO air is to be in the
cooling system at all. I think all current formulations being sold today are of
this nature. The only way to do this is to purge as much air out of the cooling
system and to maintain the same mix in the overflow tank. As the final bit of
air gets purged by the normal operation of the system then the fluid that is
used will not break down as fast in the cooling system. The particulates that
settle out and develop the crud that blocks the heater core and other small
passages then does not happen (normally), sometimes as fast as 6 - 12 months.
This short time span breakdown I have personally seen and experienced in systems
comparable to the 55 - 65 cooling system designs.
I think the first signs of the breakdown can be seen in the overflow tanks as a
film of buildup of the particulates as they settle out of the fluids exposed to
air in the overflow tank.
All one should have to do for the 2 or so years between changes is to make sure
that the overflow container never runs dry during the periods that you operate
your car.
I personally will still adhere to the 2 year change out cycle, regardless of the
vintage automobile. We have seen the desirability of doing this even with modern
cars.
AND above all else, Do Not Mix Types of coolant in the same system.
--
Paul Holmgren
Hers: http://in09.endcancer.org/goto/Cindy.Holmgren
*************************************************************
To unsubscribe or set your subscription options, please go to
http://lists.psu.edu/cgi-bin/wa?SUBED1=l-forwardlook&A=1
|
|
Back to the Home of the Forward Look Network