<VV> compression test

Ron ronh at owt.com
Sat Oct 15 17:06:23 EDT 2011


Go ahead and say it:  The new lifters aren't as good as the original ones.

RonH

----- Original Message ----- 
From: "Mark Durham" <62vair at gmail.com>
To: "Harry Yarnell" <hyarnell1 at earthlink.net>; "Bruce Alexander" 
<brucealexander11 at yahoo.com>; <virtualvairs at corvair.org>
Cc: <judynrandy at comcast.net>
Sent: Saturday, October 15, 2011 10:39 AM
Subject: Re: <VV> compression test


> Harry, you may be expert at setting valves cold, but most don't have
> the expertise to do so. I did my engine that way when building it up,
> but its less accurate once the lifters have pumped up and seated,
> because its harder to find that zero lash position. And, unless the
> lifters are NOS 60's vintage setting the lash at one turn will do
> exactly the problem Bruce had in the first place as newer lifters
> should be adjusted no tighter than 1/2 turn. The newer lifters are
> designed differently internally and have less to play with in
> adjustment. Mark Durham
>
> Sent from my Windows Phone From: Harry Yarnell
> Sent: Saturday, October 15, 2011 9:28 AM
> To: Bruce Alexander; virtualvairs at corvair.org
> Cc: judynrandy at comcast.net
> Subject: Re: <VV> compression test
> A lifter is holding the valve open. Book calls for one turn past zero 
> lash,
> but 1/2 turn is ok.
> Hydraulic lifters don't always bleed down quickly in static mode, but will
> when run.
> I am assuming you're adjusting them cold and by the book (let's not get
> into adjusting them warm like SOME folks do).
>



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