RE: IML: colling system pressure?

[Ken Lang <imperialken@xxxxxxxxx>]

Dan,

What I've done for both my 67 and 68 is to install a filter in the top
radiator hose.  After re-building the radiator in each car the last thing I
wanted was to plug the cores with debris remaining in the cooling system.

All you would need to do is install the filter and put the cooling system
back together and drive it.  A few days later, pull the filter, clean it and
put it back in.

Contact me off list if you want more info on the filters.  I can get that
tonight after I get home and send to you.

Ken

67 Crown 4 Dr Ht
68 LeBaron 4 Dr Ht



-----Original Message-----
From: mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of
therichardsonfamily@xxxxxxxxxxx
Sent: Tuesday, February 20, 2007 12:35 PM
To: IML
Subject: IML: colling system pressure?

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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