Re: Cam bearing removal. It's not really necessary to remove them as the
acid bath/hot tank will pretty much destroy them! Perhaps what they are
really telling you is that you are going to have to buy new ones and they
will have to use their specialized equipment to install and ream them to
size.
Re: the "black, carbon-like stuff". That's rust! That plug is in the hole
that used to be where a block drain tap was fitted. Hot-tanking should clear
it out although unless you want to fit a drain tap instead of the plug, its
presence there causes no problems.
Re: woodruff key removal. I have an old, flat chisel the blade of which is
just a little thinner than the key. The end is ground concave, coming to a
fairly pronounced point. Tapped with a hammer, this can be driven in under
the end of the key, which is then forced up out of its keyway. However, if
your keys are in there really tight, you might want to convince yourself you
have a really good reason to take them out. Usually, so long as they are not
likey to fall out during machining operations, they can stay there without
causing anyone any problems.
Lawrie
British Sportscar Center
-----Original Message-----
From: Florrie & Allen Bachelder <bachldrs@swva.net>
To: mgs@autox.team.net <mgs@autox.team.net>
Date: Saturday, January 30, 1999 6:27 PM
Subject: Another update, 1 question
>Hiya,
>
>Just a quick update. Got the motor up on a stand for disassembly last
night...
>
>A couple of observations, the machine shop I'll be taking the stuff to says
>I *must* have the Cam bearings removed before going into the hot tank, I'm
>not sure if this is a way of securing my business <G> for both the cleaning
>and machining process but what the heck. Anyone? Can I do this without the
>special tool shown in the Service Manual? Another thing I found, there is a
>3/4" bolt just below the oil cooler outlet on the back of the block. I took
>this off and found so much thick, carbon-ish like gunk in there. Is this
the
>end of the waterway or something? I couldn't clear it all out, hope the hot
>tank will.
>
>Lastly, Woodruff keys (what a name!) - How on earth do they come out? <G>
>Mine seem to be stuck fast. My motor is an 18GJ - Californian version of a
>GH.
>
>Cheers,
>Neil.
>
>Neil -
>
>The machine shops I've been to just take the block as I've stripped it, hot
>tank it, do the machine work, and when I get it back the new cam bearings I
>bought are installed. It is true that hot tanking ruins cam bearings so
>they must be replaced. I've never heard of a shop requiring the owner to
>remove the old ones first. I couldn't get the Woodruff keys out either -
>so I left 'em in. No harm since in all three cases, the cam timed
>perfectly without resorting to offset keys (can't remember - would one put
>the offset key on the crank or the cam?).
>
>Allen
>
>
|