<VV> 140 overhauls

[Roger Gault]

Chuck,
I think running around in hot Texas summers with a little bit of pinging
breaks the stock pistons whether they have new rings or not.  All the ones
I've broken have been with "old" rings.  At least "I" had not changed the
rings.  They were also all after a relatively long stretch of highway (read
that 80mph) driving.  Of course, being a responsible, law abiding adult, I
no longer drive at such speeds.

Roger


----- Original Message ----- 
From: "BBRT" <chsadek at comcast.net>
To: "Corvair List" <virtualvairs at corvair.org>
Sent: Monday, May 14, 2007 3:04 PM
Subject: Re: <VV> 140 overhauls


> I am tending to think the stock old, used pistons break when new rings are
> put on them. Seems as if, using the old pistons and old rings in the same
> cylinders-assuming they are suitable for use - doesn't carry the same
threat
> of breaking them. Breakage seems to happen when "the old established
order"
> is changed... LOL!
>
> What do y'all think?
>
> Chuck S
> BBRT
> ----- Original Message ----- 
> From: "Roger Gault" <r.gault at sbcglobal.net>
> :
>
> > Assuming that you are into religious preventative maintenance, I'd
replace
> > the pistons.  My 140 experience is that the stock piston *will*
eventually
> > break at the oil-ring groove and the intake seats *might* come out.
> >
> > Roger
> > From: <Pitts10ch at aol.com>
>
> >> Hi guys,
> >>
> >> I am just wondering about simply pulling the heads and having the valve
> >> seats done, at this time it seems like it would be a good idea to do
the
> > jugs  and
> >> put in new forged pistons or some updated, better pistons, then put the
> >> whole thing back together again.  Are there significant issues to be
> >> addressed in
> > the bottom
> >> end on a car with 33,000 miles on it (no auto cross).   Thanks.
>
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