what every boy needs - yeah seriously

On Jan 13, 10:02*pm, " wrote:

The basic problem is one of rigidity.

Agreed, thought about that too. Vibration is a significant concearn

*The initial cut must also be
your finished cut, with regard to width. *

Never actually done this, of course, but from my limited machining
experience I'm not too sure that it's not a task that can't be done.
I was thinking something like a 4" grinder mounted to the tool post
with a carbide saw blade. once the fins got thin/deep enough wrap
some rubber tube or o-ring material in the fins adjacent to the cut.

Joke, right?

To remove swaged-in seats from aluminum heads you fire up your buzz-
box,

Nope, no joke. Real life is a joke at times :-( The shop I started
at had no form of electric welder! The pull'n was done/attempted with
one of those slide hammer tools like a large oil piston remover. When
I moved on to my own shop I couldn't justify the cost of the tooling
needed for valve seat replacement since new heads were so cheep ....
Brazil owed us lots of money back then :-)

On Jan 14, 6:39*am, "
wrote:
On Jan 13, 10:02*pm, " wrote:

The basic problem is one of rigidity.

Agreed, thought about that too. *Vibration is a significant concearn

*The initial cut must also be

your finished cut, with regard to width. *

Never actually done this, of course, but from my limited machining
experience I'm not too sure that it's not a task that can't be done.
I was thinking something like a 4" grinder mounted to the tool post
with a carbide saw blade. *once the fins got thin/deep enough wrap
some rubber tube or o-ring material in the fins adjacent to the cut.

Joke, right?

To remove swaged-in seats from aluminum heads you fire up your buzz-
box,

Nope, no joke. *Real life is a joke at times :-( * The shop I started
at had no form of electric welder! *The pull'n was done/attempted with
one of those slide hammer tools like a large oil piston remover. *When
I moved on to my own shop I couldn't justify the cost of the tooling
needed for valve seat replacement since new heads were so cheep ....
Brazil owed us lots of money back then :-)

How about welding some extra fin material to an existing head?

Ed

On Jan 14, 6:39*am, "
wrote:
* The shop I started
at had no form of electric welder! *
--------------------------------------------------------------------------------

You don't REALLY need a REAL buzz box. Three 12v batteries will do
the trick, which is to dump about one volcano's-worth of HEAT into the
opposite sides of the seat. Molton steel. It has GOT to shrink as it
cools. And when it does, it shrinks the seat as well. So with a bead
at the top and a bead at the bottom, hit the thing with a cup of ice
water, it shrinks into an OVAL and you can pop it right outta there.

-Bob