Date: Mon, 12 Oct 2009 11:34:29 -0700
Reply-To: Jeffrey Vickers <jeff@VICKERSDESIGN.COM>
Sender: Vanagon Mailing List <email@example.com>
From: Jeffrey Vickers <jeff@VICKERSDESIGN.COM>
Subject: Re: diff lock woes
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Are you sure its not engaging when driven? Sometimes it takes a while
to engage. You've got to get the front and rear to turn at a different
rate - like going into a corner.
If the pin in the tranny is free and the actuator is moving in and out
(which means you have proper vacuum) then it should engage with a
Someone else will have to chime in regarding the light circuit. I
assume the circuit gets closed (light goes on) when the actuator is
moved forward, but not until full engagement I would think.
On Oct 12, 2009, at 10:06 AM, Automatic digest processor wrote:
> Date: Mon, 12 Oct 2009 09:55:42 -0700
> From: Bruce Todd <beeceetee@GMAIL.COM>
> Subject: diff lock woes
> Okay - not to stretch this email into a long winded tale...I had my
> out of my 86 syncro westy this past summer to have a number of repairs
> completed. The main repair was to have the head gaskets replaced as
> I was
> having overheating issues. With the motor out, it was checked
> for wear and then the top end was partially rebuilt. At the same
> time I
> replaced brake-lines, ps lines, ps pump, gas tank straps, coolant
> fuel lines and a few other odds and ends. I now have a stronger
> motor that doesn't leak coolant or oil and idles very nicely. I
> also feel
> relatively more confident when taking my young family on longer trips.
> Since buying the van several years ago, the rear diff lock has
> always been
> seized. Here was my opportunity to get this fixed with everything
> else when
> the motor was removed. The mechanic unseized the locking pin and
> put it all
> back together telling me that it took minimal pressure to engage the
> This was all theoretical as when it came time to road test - the
> diff lock
> wouldn't engage. The mechanic told me to return when his shop was
> less busy
> and he would work on it some more. What does work is the green
> dash light which permanently stays on once the vehicle starts
> whether the
> diff is locked or unlocked.
> Twice I've taken off the actuator to check whether it works when I
> the dash knob and it does. Pulling out the knob elongates the stem of
> the actuator...pushing the knob in, contracts the stem. The diff
> lock has
> worked with the van on a hoist with the tires off the ground slowly
> rotated and the locking pin being pushed with the actuator and with
> the help
> of a pry bar.
> Yesterday I crawled under the van to unplug the wires which connect to
> indicator light switch - which is located above the actuator. Even
> the plug disconnected the green dash light was still on. Does this
> that the diff lock pin is partially engaged or is there something else
> occuring? Why would the light stay on if the plug is disconnected?
> This pretty much is the last thing that doesn't work on my van - and
> love to get it working. Any words of wisdom would be most
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