Date: Wed, 6 Apr 2005 12:12:38 -0400
Reply-To: ROBERT DONALDS <donalds1@VERIZON.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: ROBERT DONALDS <donalds1@VERIZON.NET>
Subject: Re: Hydraulic Valve adjustment - when is "contact"?
Content-type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original
Benny Boy
just 17 in 6 months
If you cant make he rocker rock then it sounds like the push rods might not
be centered in the lifter his gives you no free play in the rocker and can
make you wonder that is going on
The 2 last printings of the Bentley Book says preloading is optional
I recomend 0 lash hot or 006ths cold
The 006ths cold is for assembly and 0 hot is done when the van is sorted out
and running
Bob Donalds
Boston Engine
----- Original Message -----
From: "Benny boy" <huotb@VIDEOTRON.CA>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, April 06, 2005 12:52 AM
Subject: [Norton AntiSpam] Re: Hydraulic Valve adjustment - when is
"contact"?
>I did 17 Vanagon engine in the past 6 months...more than anyone here am
> pretty sure.
>
> This is a precision job...most lifter will get soft very fast, now, here
> is
> where you need to be precise, make sure to unscrew that adj. screw till
> the
> rocker is free/moving slighly, now go easy on that screw when going IN,
> very
> easy, 1/8 per 1/8 turn IN until it touch the valve...check for loose but
> be
> gentle. When you are sure that the screw is touching the valve tip and the
> other end is touching the pushrod....go for that 1.5 to 2 turn IN.
>
> Anyway, if your no sure...just start the van, drive it a wile until the
> lifter get fully pump up, they will be hard as steel... check them again,
> adjust them a t 1.5 to 2 turn in.
>
> Cheers, Ben
> http://www.benplace.com/vanagon_engine6.htm
> _______________________________________________________________________
> So I've read all the archived stuff about hydraulic valve adjustment since
> 2002. Read Bob Donalds' page.
>
> Putting my new-head-gaskets engine back together. I tried to adjust my
> valves to one turn past contact but I can't decide where contact is! I
> push
> even lightly on the bottom (pushrod side) of the rocker arm to preload it,
> then tighten the adjusting screw. Even pushing lightly, I'm compressing
> the
> lifter a bit I think.
>
> Do I just have to guess at it, then wait till I can run the engine a while
> to pump up the lifters, or is there some way of doing the adjustment with
> the engine on the stand where it is now?
>
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