[T3] Fuel gauge issues (jumpy needle)

[Dave Hall]

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

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

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. I suspect the wiring, fuses/holder etc are quietly corroding at the
joints.  Some of them are still the original fuses with the rings on the
ceramic part, rather than the flat surfaces of the later ones.

Dave
UK VW Type 3&4 Club
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-----Original Message-----
From: type3-vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
On Behalf Of Jim Adney
Sent: 31 May 2015 17:18
To: type3 at vwtype3.org
Subject: Re: [T3] Fuel gauge issues (jumpy needle)

.......

As a test, I just went outside and checked 2 cars in my driveway. The
'69 gauge needle did not flicker at all with the 4-way flashers, either with
or without the key ON. It's tank was nearly empty, meaning <10 Ohms in the
sender.

BUT, on my '73, the gauge flickered wildly with the key OFF, not at all with
the key ON. However, this may have been due to the tank being full, meaning
~100 Ohms in the sender. I haven't noticed flickering gauge readings on that
car, but it looks like I need to look into the grounding.  

Snipped.


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