<VV> Lifter bore specs?

[Mark Durham]

Harry, I think Mark is saying the lifter bore is so worn the oil won't pump
up the lifter, but I would try another *new* lifter (don't swap them around
if they have been run on the cam lobes) before thinking the block is worn.
If the lifter makes suction when it is pulled out or pushed in, there is no
problem in that area.

I've put 180K miles on one of these engines, with only ring and valves and
bearings  as needed, and there was never a problem with lifter bore, and I
used a 1/4 turn valve lash all the time.
Mark Durham

On Tue, Nov 24, 2009 at 10:17 AM, Harry Yarnell <hyarnell1 at earthlink.net>wrote:

> What do you mean the lifters won't accept a lash adjustment? There's PLENTY
> of oil feed to the lifter bores; I would find it hard to imagine
> 'excessive'
> wear in a lifter bore; or what that would have to do with 'lash
> adjustment'.
>
> Harry Yarnell
> Perryman Garage and Orphanage
> hyarnell1 at earthlink.net
>  ----- Original Message -----
> From: "Mark Aksamit" <mark at vintagecarcare.info>
> To: <virtualvairs at corvair.org>
> Sent: Tuesday, November 24, 2009 1:11 PM
> Subject: <VV> Lifter bore specs?
>
>
> > Is there a spec for the lifter bores? We have a vehicle in the shop that
> > has
> > good oil pressure, new lifters and will not accept a valve lash
> > adjustment.
> > My guess is the block is just plum wore out! Has anyone measured the
> bores
> > to verify the I.D.
> >
> >
> >
> > Thanks!
> >
> >
> >
> > Mark Aksamit
> >
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