Date: Mon, 20 Dec 1999 07:49:00 -0600
Reply-To: Darrell Boehler <midwesty@MIDWEST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Darrell Boehler <midwesty@MIDWEST.NET>
Subject: Re: Valve adjustment
Content-Type: text/plain; charset="iso-8859-1"
Hi Bob,
Are you saying to allow 0.006 inch clearance with the lifter fully
expanded??? Just want to be sure I read you clear on this.
Darrell
----- Original Message -----
From: Bob Donalds <bostneng@FCL-US.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, December 20, 1999 7:26 AM
Subject: Re: Valve adjustment
> Shortlidge D Joel wrote:
> >
> > What is the easiest way to adjust the valves of the wasser
leaker? What
> > should I do if they still will not seat right? They currently not
making
> > any valve clatter and I think they many be to tight. What should my
next
> > course of action be if that does not get them to seal right?
> >
> > ___________________________________________________________________
>
> Joel
> I have gotten to the point that I am shipping all my rebuilt engines
> with hydraulic lifters with the valves adjusted to .006ths clearance.
> the reason for this is that when the new engines warms up with the
> valves preloaded stay open causing low manifold vacuum and poor
> performance. Hydraulic lifters are not bleeding down as expected. I now
> tell my customers that they need to do a compression test before and
> after the engine has had the the lifters preloaded and they preload at
> there own risk! I have spoken with Greg at Gregs repair he reports
> compression tests before and after backing off my customers preloaded
> valve adjustment with gains of 20 pounds across the board. There has
> been no report of lifters failng because of valve adjuster lash
> (clearance) my own van has run this way for 2 years. Its not clear why
> this is happening but I have an article posted at my web site that goes
> into more detail. I have personaly backed off the adjusters for the
> editor of the vanagon manual and cured his low vacuum and low
> compression readings in his own vanagon.
>
> Bentley says
> Bentley gets its info from VW and passes it along without passing
> > jugdement they have told me they do not feel free to modify thats been
> > handed to them without a tech bulletin to back it up even when I have
> > proven to them that there is a better way
>
> I spoke to Ken at vanagain he told me he had heard of meet or show
> where someone tested the vacuum readings of all the vanagons that showed
> up and they all had low manifold vacuum can anybody else report on that?
>
> while we are on the subject valves I hear that there are sodium
> valve for sale but the only valves I have found listed are stelite faced
> they do have an S next to the part number these may be mistaken for
> sodium any leads, part numbers and phone numbers
>
> Bob Donalds
> http://www.bostonengine.com
>
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