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We have a person in Southwest Portland, Oregon, Jim Classen, who
has been repairing cracked blocks for years. He does the drilling method as
explained below. He is the only one in the Northwest to go to. He has rebuilt
almost all of the “Packard engines” in show cars in our area and
other classic engines such as Maxwell. He has been working out of his home for
many years and still going strong in his late 70’s. This method is worth the money if you have a rare engine. John Chesnutt, Portland, OR From:
mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of gkitterma@xxxxxxx Bill's information is right on.
Be sure to read his wording carefully regarding stop drilling just beyond
the end of the crack. This is standard aircraft practice as well. There are
thousands of commercial and private aircraft in service, some with hundreds of
stop drilled fatigue cracks, flying safely around the world. Greetings
All, Cracks
in cast iron can be repaired if there is enough thickness. There is a
business on line with a good web site. Metal
Locking Service Inc. 1-866.Fix Iron Their
fix is similar to what we did back in the 50's to repair cracks. It
worked for cracks in flathead valve seats. Fix the crack, cut out for a
replacement valve seat and grind for the correct angle, put it back together. We
would drill an 1/8" hole just behind the end of the crack, in good
metal. Then start drilling holes down the crack. Into each hole we drove
a tapered steel pin coated with Litharge (PbO) and Glycerin. Each hole
drilled clipped the previous one, so there was a solid line of pins. The
above business taps each hole and screws a pin into the hole. The
above fix was labor intensive but could rescue a block that could not be
replaced. Darn,
I sound old when I bring something like this up. Bill
Miller 68
Crown 4dr HT 64
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