Re: Man oh man.......engine block cracks........:-

Posted by Patrick Martin on October 19, 2006 at 18:05:13 from (64.154.26.250):

In Reply to: Re: Man oh man.......engine block cracks........:- posted by Hugh MacKay on October 15, 2006 at 04:05:33:

I'm 150% in agreement with you bud!!! I've wondered about folks who say this too as I don't really see how the antifreeze reduces the cooling capability of the water. The Model T and many, many other 1920's automobiles utilize the thermo-siphon system and are unaffected in the range of cooling. I find the guys who refuse to run antifreeze in their cars tend to have the filthiest radiators and are always having to recore or repair them.

The antifreezing agent ethelyne glycol has no rust preventative properties but the other additives and soluble oils that are added to good antifreezes such as Prestone's brand aid in keeping your water passages rust free for the duration of the standard duty cycle specifed.

The ethelyne glycol never leaves but the rust preventative agents do. The constant heating and cooling in a way cooks those additives out so that's why it's necessary to replace the coolant at the specifed intervals. You may never have a problem with freezing but you will have dirty clogged water passages and rampant electrolosis going on in your radiator, heater core, etc. Those zinc anodes work pretty good in the radiator too but whoever the morons were that thought of it should have secured them with a piece of stainless cable.

I'd reccomend to anyone that hasn't serviced their radiator in a while to use at least two bottles of radiator flush (a good brand like prestone) to eat the corrosion out of their block and radiator and then flush with clean water and follow up with 50/50 or 40/60 water and coolant with rust inhibitors.

I know allot of folks think that if they do it now they'll only aggrevate the problem but to them I say this is wrong and you should get it now before you really get caught in a pickle.

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