Re: TOY: sandblast timing cover?

[Thom Singer <ntsqd@xxxxxxxxx>]

You don't want to blast the O-ring groove at all. The machined surface
is needed to seal. If you do blast it, you'll want to carefully scrape
it or lap it smooth again.
While you've got the cover off check to see that the water passage
corrosion isn't in danger of eating thru into the crankcase. I would
mask the timing chain region with duct tape and carefully blast the
water passage. If you have any doubt about the corrsion, get another
one or have that one welded up.

Once you have the aluminum parts clean you can spray them with Harley
Engine Case paint if you want to keep the dull aluminum finish w/o the
maintenence.

--- Kerry White <kerry_e_white@hotmail.com> wrote:
> 
> I can't decide on whether it'd be a good idea to blast my timing
> cover or 
> not. It could use the cleaning, especially in the water passageways
> were 
> there is some built up corrosion.
> ->But I'm afraid that with a rougher surface for the oil pump O-ring,
> it 
> might leak<-
> I think that sandblasting the valve cover, intake manifold, and air
> intake 
> chamber won't hurt them at all.
> 
> I have a remanufactured long block that I'm putting in, I've painted
> the 
> block and all the iron parts, but have only wire brushed the aluminum
> parts, 
> and would sure like them to look as good as the rest.
> Any comments are welcome and appreciated. :)
> 
> 
> Thanks,
> 
> Kerry
> 
> 
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=====
TS
Ventura, CA

"Teach you all I know and you're still stupid."
-- Howdy Lee

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From owner-toyota@www.4x4wire.com Sun Jul 21 14:54:53 2002
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Date: Sun, 21 Jul 2002 12:54:52 -0700 (PDT)
From: Thom Singer <ntsqd@yahoo.com>
Subject: Re: TOY: Speaking of sandblasting...
To: toyota@4x4Wire.com
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Silicosis of the lungs comes from sandblasting w/o a respirator. It's
bad news. May as well smoke unfiltered Camels for the damage you're
doing to yourself. Check Grainger's or McMaster-Carr for a proper
respirator.

--- Marc Sahr <msahr@extremezone.com> wrote:
> So I want to sandblast some parts and the frame of my 81 truck... Who
> has
> experience sandblasting? I borrowed a siphon-feed sandblaster from a
> buddy
> who said to use Silica sand. So I get the silica, and the bag says
> "DO NOT
> USE FOR SANDBLASTING!"... So I go to Harbor Freight today and get
> some
> sandblasting media, but ALL the respirators say "DO NOT USE FOR
> SANDBLASTING". So what do you do for sandblasting? What type of
> media,
> equipment, and protection?
> 
> Thanks,
> Marc Sahr
> 
> 85 4Runner and 81 Hilux "rockcrawler in-progress"
> 
> 4x4Wire.com Toyota Section http://www.4x4Wire.com/toyota/


=====
TS
Ventura, CA

"Teach you all I know and you're still stupid."
-- Howdy Lee

__________________________________________________
Do You Yahoo!?
Yahoo! Health - Feel better, live better
http://health.yahoo.com