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Old 06-08-2010, 05:16 PM   #16
Pete
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Join Date: May 2010
Location: Wa.
Posts: 5,423
Default Re: Radiator baffle?

The info from Marco will work but it is a bandaid, not a fix for the basic problem.
A top tank baffle is not a primary cure for puking water out.
It is primarily designed to stop aereation. The secondary benefit of this is
stopping water from being forced out due to expansion from air trapped in the water.
A proper baffle will cover the whole top section of the radiator inside the top tank. It will have openings along the side and ends and have 1/2 inch holes spaced regularly throughout to center area. These holes will be approximatelt 3 inches apart. The side openings will vary in size according to the capacity of the radiator.
Another common belief is that slowing the water down will make it cool better. That is wrong. If you don't buy that, look up Boyle's laws of thermodynamics or ask an engineer involved in cooling processes.
You don't need water hoses the size of a fire hose to cool a flathead either. You DO need them to look proper for judging though.
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