Re: Tranny Cleaning

["Dan Bubb" <jdbubb@ix.netcom.com>]

Depends on the media that you use.
Some are really abrasive and remove more than dirt. They will actually remove the base metal. They
also leave a rough surface. www.Eastwoodco.com and www.mcmaster.com both have some description of
what media will do this.
I use glass beads since, generally speaking it only removes crap and corrosion and sort of gives a
semi polished surface compared to say sand.
My approach is to mask off areas I don't want to blast (i.e bearing and gasket seating surfaces)
using duct tape. For transmissions I mask off the whole interior of the case.
The beads still always manage to get inside the masking and will need to be removed, but at least
the surfaces in there are undamaged.
But, to answer your basic question. I would not blast bearing surfaces. Might mess up the press fit
interference and that would waste the case (unless you use Loctite bearing mount ;^)
TMI??
Dan

----- Original Message -----
From: "Brian Haygood" <haygood@myway.com>
To: <ansonivan@yahoo.com>; <scirocco-l@scirocco.org>
Sent: Saturday, March 05, 2005 12:27 AM
Subject: Re: Tranny Cleaning


> So how much do I have to worry about bead blasting it as far as damaging bearing surfaces and
such??  Do I protect them as though I were sandblasting?  That's always a pain and never truly
successful (when I do it anyway).
> Hmmm.  Any more thoughts?
>
>
>
> BH
>
>
>
>  --- On Wed 03/02, Anson Clement < ansonivan@yahoo.com > wrote:
>
> From: Anson Clement [mailto: ansonivan@yahoo.com]
>
> To: scirocco-l@scirocco.org
>
> Date: Wed, 2 Mar 2005 18:08:58 -0800 (PST)



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