Date: Tue, 7 Jun 2005 01:10:06 -0400
Reply-To: tabe johnson <xtabe@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: tabe johnson <xtabe@YAHOO.COM>
Subject: Re: Hydraulic Lifter Week
In-Reply-To: <000001c56b06$744630a0$6400a8c0@masterpc>
Content-Type: text/plain; charset=iso-8859-1
Thanks Dennis. With ~1/4" of range,
it sounds like the adjustment needn't be
as precise as people make it seem.
At this point, only when the engine is warm,
my lifters are quiet at speed but
begin to clack a bit after the engine's been
idling for ~30 seconds or thereabouts. I'm
going to drive it a bit more, but I wonder if
I have them too tight now. (I'm thinking
the lower oil pressure at idle is not enough to
keep them pumped up) Does that seem right to you
or am I barking up the wrong tree? They
could just be worn out. Hope not tho!
Best,
--tabe
--- Dennis Haynes <dhaynes@optonline.net> wrote:
> If you feel the push rod tightening against the spring, you are already
> taking up the slack. This guess or feel is probably why 2 turns is the
> recommendation. The actual working range of the lifter is close to 1/4".
> If you can't wiggle the push rod it is tight enough. Another turn is
> adequate.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
> Of tabe johnson
> Sent: Monday, June 06, 2005 9:44 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Hydraulic Lifter Week
>
> I think lifters are a timely subject because they haven't
> been covered super well, at least in the past five years
> of archive searching I've done. Dennis Haynes (as usual)
> posted a good procedure in April of 2005 but it assumes
> you can find zero clearance. (see below)
>
> With solid lifters, it's pretty clear where you are because
> nothing moves. If you are looking for zero clearance,
> you just wiggle the rocker back and forth while slowly
> tightening the adjusting screw. When the rocker stops
> moving, that's zero clearance. Duh, right?
>
> The problem with the lifters that I've been trying to
> adjust (and maybe they're worn) is that the springs in
> the lifters are so weak that when you wiggle the rocker
> back and forth it is very easy to compress the lifter spring
> slightly. I am unable to reliably say where zero clearance
> is because of this. The lifters don't feel hard, but springy.
>
> Any ideas, anyone?
>
> I was planning on driving it around for a while. Being
> paranoid, I'm afraid they may be adjusted too tight and
> I'll burn a valve!
>
>
> tabe johnson/87 westy/vancouver bc/xtabe@yahoo.com
>
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