Re: IML: colling system pressure?

["Frederick Joslin" <fljoslin@xxxxxxxx>]

Just an idea. Can you bypass the radiator with a piece of hose of some description?

Also if you are worried about the pressure, try hooking up a compressor with the pressure regulated to less than 20 psi.  

> ----- Original Message -----
> From: therichardsonfamily@xxxxxxxxxxx
> To: mailing-list@xxxxxxxxxxxxxxxx 
> Subject: IML: colling system pressure?
> Date: Tue, 20 Feb 2007 20:35:23 +0000
>
>
> Here's a question for Dave, but others may have some insight as well.
>
> My '67, 440 cid (Imperial engine) has newly 
> replaced freeze plugs, and a lot of casting 
> sand and junk in the cooling system. Prior to 
> doing a closed system flushing with "Cascade", 
> I want to get most of the garbage out using a 
> garden hose on the lower radiator hose, thereby 
> avoiding the redone radiator.
>
> We all know 15-18 psi is what a radiator cap 
> opens at. However, my garden hose may be as 
> high as 25 to 30+ psi. Can the head gaskets, 
> etc. and inside of the engine take that kind of 
> pressure? Does anyone know what pressure 
> exists inside the block? Or would I be wiser 
> (with this old , tired engine) to just throw an 
> old radiator on and do a closed system flush? 
> Any other drawbacks to my open system flush?
>
> Thanks for any input.
>
> Dan Richardson
> 300L Family Heirloom
>
>
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Fred Joslin