<VV> Tell me about line boring

[Bernie Livengood]

No issue as the most material removed from one
blockhalf or the other varied from .004-.014 on all
five blocks and this was done for blueprinting
purposes.  Front and rearbolt patterns  for
bellhousing and rear accessory covers never became an
issue!  Pushrod lengths varied accordingly during that
phase of a rebuild.  These block issues were always
onesided for the most part, as 95% of material was
taken from the offending blockhalf. I ended up with
two of the five engines for myself and the other three
were built for experimental aircraft use and they are
doing well in that application from the last info I
received.  Hope this is of some help!  Bernie
--- corvair at mts.net wrote:

> Were there any issues with valvetrain geometry or
> with the bellhousing, top cover, or rear cover,
> since the block would end up narrower when the two
> sides were shaved? Or did they do something else to
> bring the cam and crank bores back to spec?
> 
> Les
> 
> > 
> > From: Bernie Livengood
> <bernielivengood2001 at yahoo.com>
> > Date: 2007/01/31 Wed PM 12:30:09 CST
> > To: Les <corvair at mts.net>, 
> virtualvairs at corvair.org
> > Subject: Re: <VV> Tell me about line boring
> > 
> > Universal Machine Shop in Las Vegas, Nv. They did
> 5
> > blockes for me over a 15yr periode for various
> > reasons, cam or crank bores.  Bernie
> > --- Les <corvair at mts.net> wrote:
> > 
> > > Anyone ever actually line bored a Corvair block?
> How
> > > far can you go 
> > > before having trouble with valvetrain geometry
> > > (stock pushrods) or with 
> > > bolting on bellhousing/rear housing? Issues to
> be
> > > aware of?
> > > 
> > > I have a bunch of blocks here with poor
> (enlarged)
> > > main bearing bores 
> > > and marginal cam bores. Getting tired of trying
> more
> > > blocks and finding 
> > > they're just as bad as the ones I've got.
> > > 
> > > re USAF Museum - visited there about 1994. Well
> > > worth the very long 
> > > drive, will do it again, and will plan on at
> least
> > > three days there.
> > > 
> > > 
> > > Les
> > > corvair at mts.net
> > > (VV since 1995)
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