<VV> uneven vacuum
Hugo Miller
Hugo at aruncoaches.co.uk
Wed Feb 14 14:33:06 EST 2018
#### This below is an earlier e-mail I sent which has only just surfaced - i
started off knowing nothing about this subject, but I've learned a lot so
far today!
-----Original Message-----
From: Hugo Miller via VirtualVairs
Sent: Wednesday, February 14, 2018 1:07 PM
To: hank kaczmarek ; virtualvairs at corvair.org
Subject: Re: uneven vacuum
Not unique – a bit unusual by America standards perhaps, where V8s and
flatheads prevail – but presumably the valve gaps open up when running?
Every other engine the gaps close up when hot. Now that IS unique! As you
say, you live and you learn
From: hank kaczmarek
Sent: Wednesday, February 14, 2018 12:13 PM
To: Hugo Miller
Subject: RE: <VV> uneven vacuum
It’s a unique engine. The Procedure Seth mentions has served me well for
cold adjusting valves for over 30 years.
Advice? Listen and Learn,.
Best Regards
Hank Kaczmarek
Lincolnton NC
Sent from Mail for Windows 10
From: Hugo Miller via VirtualVairs
Sent: Wednesday, February 14, 2018 6:42 AM
To: Seth Emerson; virtualvairs at corvair.org
Subject: Re: <VV> uneven vacuum
Is that correct? I speak as a Brit and a total newcomer to these engines - I
have seen such a procedure described for TIMING camshafts (and I find it
hopelessly inaccurate - when does a pushrod become 'tight' to turn?). But
I've never heard of valves running under pre-load?
-----Original Message-----
From: Seth Emerson via VirtualVairs
Sent: Wednesday, February 14, 2018 2:10 AM
To: virtualvairs at corvair.org
Subject: Re: uneven vacuum
Joe - The cold adjustment involves setting the engine to TDC (at the end of
the compression stroke) for each cylinder and go through the firing order.
1-4-5-2-3-6. When the cylinder is at TDC, you back off the valve adjusters
(both) until you can easily spin the pushrods between your fingers (Thumb
and pointer). Then tighten them down until you take out the slack. The
pushrod will be hard to turn. Then give it your pre-determined preload,
often 1/2 a turn. Do both the intake and the exhaust, then move to the next
cylinder. That is it.
-----Original Message-----
From: Matt Nall via VirtualVairs <virtualvairs at corvair.org>
To: virtualvairs <virtualvairs at corvair.org>
Sent: Tue, Feb 13, 2018 4:01 pm
Subject: Re: <VV> uneven vacuum
Please advise standard cold valve adjustment procedure.
========================================================
Same as a Chevy v8! Surely your neighbor knows how to do that?
Follow this link to Corvair Specific instructions for Pushrod tube O-ring
replacement and valve adjust
http://corvaircenter.com/phorum/read.php?1,958473
Matt Nall
Charleston, Oregon
http://tinyurl.com/The-Corvair-Patio
http://tinyurl.com/Matts-Tech-Pages
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