There's a pipe thread that's close to what's in the block
originally. Re-tap them with this, and put brass pipe thread plugs
with allen head ends. Just tap it deep enough that at least the
front plug doesn't interfere with the front plate. Also, if you go
too deep with the front plug, make sure you don't block the feed to
the front main - I had to grind a bevel on the backside of mine since
I got a little overzealous with the tap. I shove some paper towel
down the gallery before tapping so as little crap as possible gets in
the gallery, and then I clean it out very well before
assembly. Works best on a bare block that you can clean all passages
thoroughly after tapping.
- Tony Drews
At 12:00 PM 8/31/2008, Randall wrote:
> > It my understanding that no one is making those. Every one I
> > have talked to that have needed them have had a machine shop
> > start with a bar of steel and fabricate them from scratch.
> > Where they also a pipe thread? Requiring re-taping of the galley?
>
>I don't know offhand, but I've got plenty of spare blocks if you want to
>come measure one. Or better yet, cart it away <G>
>
>Randall
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