By leaking coolant between the freeze plugs do you mean literally between adjacent ones, or leaks around the seal of the plug itself? Remember that the plugs are made of a different metal than the steel, and over time, corrosion and galvanic effects will deteriorate the weaker of the two metals (the plug).
I would attempt a rebuild. Egge (www..egge.com) has all the parts you need for the 413. An AACA acquaintance of mine recently rebuilt his 1910 Cadillac motor with parts from Egge. If they have stuff for a brass era car, they have stuff for ours too.
I'm sure a 413 block is out there but not easy to come by. I could be wrong on that account.
Chris Middlebrook
1962 Custom Southampton
--- On Tue 06/12, Graham Quimby < ghquimby@xxxxxxx > wrote:
From: Graham Quimby [mailto: ghquimby@xxxxxxx]
To: mailing-list@xxxxxxxxxxxxxxxx
Date: Tue, 12 Jun 2007 21:13:46 -0400
Subject: IML: 62 Rebuild or Replace Engine?
Fellow Imperialists,
I have two problems with my 413. First, the block is porous. The block
was leaking coolant between the freeze plugs. After two treatments of
engine block sealer, it appears to have stopped leaking. Second, I have
a problem with blow-by. I do not have PCV yet, but I hope to add it
soon. Thin smoke is coming from the oil filler cap and draft tube, but
I donâ??t see any smoke coming out the tailpipe). The engine burns a quart
of oil almost every 50 miles. I have tried using Restore and it does
seem to be improving the blow-by. With the problems I have, should the
original engine be rebuilt, or should I start looking for a
replacement
engine?
Thanks,
Graham Quimby
1962 Caramel Crown
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