[T3] Fuel gauge issues (jumpy needle)

[Dave Hall]

Yes, it's not often my driving technique has the car rolling violently
enough to move the clock in an axial mode.  ;-)
You're right, it's a useful way to check if a pendulum (transistorised)
clock will run.  

Dave
UK VW Type 3&4 Club
===================

-----Original Message-----
From: type3-vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
On Behalf Of Jim Adney
Sent: 02 June 2015 03:19
To: type3 at vwtype3.org
Subject: Re: [T3] Fuel gauge issues (jumpy needle)

On 2 Jun 2015 at 2:24, Dave Hall wrote:

> Should the number of Ohms be the other way round, ie <10 Ohms when 
> full, etc. or have I misunderstood?

You're right; I had that backwards.

> Odd that one of your cars showed flickering with the key off but not 
> the other one.

Yes, odd, but then I don't claim to understand this fully. I THOUGHT I had
an answer, but now that the resistances are the other way around, I'm lost
again.

> I thought my (transistorised) clock had failed as it hadn't worked 
> since I used the hazard flashers to protect another Type 3 in a 
> stationary convoy some years ago, but when I put a new battery in 
> recently, it started working again.

Sometimes it just takes the step function of applying the voltage to get the
late style clocks working. I also find that taking the late clocks out of
the dash, while keeping the power applied, and then twisting them quickly
back and forth about a vertical axis, will often start them. I'm surprised
that normal road vibration doesn't seem to do the job, but that vibration
doesn't contain much motion about the vertical axis.

--
*******************************
Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
*******************************

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