[Fot] TOP & BOTTOM RADIATOR TANKS EXPANDING

[Tony Drews]

Plugged overflow line could be an issue - Even with a too high 
pressure cap I'd have a hard time seeing it build up enough pressure 
to make the radiator fail.  If the overflow line is plugged solid, 
you can build pressure until something gives the water a place to 
expand into - blow off a line, bust the radiator, or whatever.

- Tony

At 08:13 PM 6/12/2010, n197tr4 at cs.com wrote:
>Sean is working on TR4  #197 for Blackhawk Farms.
>
>After running some heat cycles the tanks expanded.
>
>Cause....radiator cap?
>
>Help!
>
>Failure may be imminent. We might have a back up radiator, but that's not
>likely the problem.
>
>I dont think he is seeing bubbles in the coolant.
>
>I dont think he is seeing anything go into the overflow bottle.
>
>TIA
>Joe
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