Matt,
Just cleaned the block yesterday on my taking-forever rebuild. I used a
wire brush to get off a few stubborn spots. I then power washed (1500 psi)
all surfaces, oil passages, and cooling jackets. I drilled out the gallery
pugs and used a set of "rifle barrel" brushes to clean the channels. It
was AMAZING what came out of a seemingly spotless block. I then washed and
washed again. Everything was then dried with compressed air and oiled with
WD-40. I was going to tap the oil galleries but I needed a drill bit (i
think it was a 31/64 tap?) but the guy at ACE couldn't tell me for sure
what size drill I needed for the tap. Am going back to the block tonight
with a tap/drill chart. Will mail final results later tonight or tomorrow.
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> From: Matt Liggett <mliggett-receive-spridgets@elise.kiva.net>
> To: spridgets@autox.team.net
> Subject: cleaning, painting and tapping the block
> Date: Sunday, May 31, 1998 3:43 PM
>
> My block has gone all rusty from having been cleaned but not oiled or
> painted while at the machinist. I'm having a rough time stripping the
> thing of the remaining rust and paint (not much left). Any
> reccomendations? I need to get this crap off to paint it. I tried naval
> jelly to convert the rust, which seems to have worked somewhat but the
> remaining paint is a bear.
>
> Also, David Vizard reccomends tapping the oil galleries to install
> reusable plugs. To anyone who has done this, what size tap did you use
> and was any drilling required to oversize the hole?
>
> Thanks,
> --
> <mml@pobox.com> Matt Liggett
> '60 Mini, '70 Midget, '89 SAAB 900t SPG
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