<VV> head repairs

[jryall@juno.com]

Making a bushing to hold the seat is more difficult than a 'proper'
repair, and won't save you any money even is you can do the machine work
yourself.  It would also give two reasons for the new seat to fall out. 
(1) seat falls out of bushing, or, (2) bushing and seat both fall out. 
Have the old seat area tig welded then machined for a new seat.  It's not
that expensive.

John Ryall

On Wed, 5 May 2004 08:04:08 -0400 "Mark J. Murphy"
<m.j.murphy@comcast.net> writes:
> Thanks to all who replied to my search for a decent used 140 head.  I 
> have
> one in transit and hopefully should have her on the road again this 
> weekend.
> With that current emergency out of the way, I was thinking of 
> fiddling with
> the "bad" head to make a spare for when (I'd like to say "if", 
> but...)
> another seat drops in the future.  From what I can gather the 
> accepted
> method of fixing a head with a dropped seat is to weld in new alloy, 
> machine
> the rebuilt area back to factory specs and press in a new seat.  Is 
> this
> correct?  Has anyone tried machining the damage area out and 
> pressing in an
> alloy sleeve as a bushing around the seat with any success?  I was 
> thinking
> about this as I don't have access to a TIG set, my welding skills 
> are poor
> at best, and at this point I have more time than money.  Any 
> opinions?
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       ,-----___\----,    Mark Murphy
>       \--(o)----(o)--'  Derry, NH, USA
>     http://m.j.murphy.home.comcast.net/
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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