[T3] '72 Type 3 Progress

[Dave Hall]

Good on the clock and other things.  I was really upset with the late clock
with grey face that I put into the Variant to go to Germany when it just
stopped after working really well for a few days.  I suspect a voltage surge
when I had the hazards on, as the transistor has blown.  I'm going to try
replacing that - not easy in the confined space, but nothing lost anyway.  

The WD40 has probably thickened the hard lubricant.

I suspect the flux on the soldered ends of the coils did for the first clock
of this type I pulled apart - I put a quartz movement on that after pulling
the back parts off it.  Keeps us out of mischief!

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

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Jim Adney
Sent: 17 January 2012 03:34
To: type3 at vwtype3.org
Subject: [T3] '72 Type 3 Progress

I was going to send this to Dennis, but I thought it might be of more
general interest. Dennis, our resident shop instructor, sent me 4 parts from
his '72 fasty that his students are bringing back to life. 
He sent the FI fuel pump. the distributor, the speedo, and the clock.

The fuel pump parts are all ready for me to put back together, that was
straightforward.

The speedo was very rusty on the outside, but the odometer problem seemed
straightforward. When I started to open it, it became clear that I wasn't
the first one in there. The odometer input shaft was out of place, which was
odd, but I had to remove it anyway. It all went back together nicely, but
then I discovered that the speedo input shaft was VERY hard to turn. This
turned out to be another common problem that took a few extra minutes to
fix. Now everything seems to work nicely, although the odo numerals and the
speedo pointer look like they've suffered and discolored, possibly from too
much sun. Regardless, it's gonna work just fine.

That brought me to the clock. This is a late clock, the kind with the little
coil and the transistors. I've almost never managed to bring one of them
back to life, and this didn't seem any different. I powered it up and it
showed some signs of life, but really wouldn't run. Then I checked out one
of Dave's suggestions: see if the coil windings showed continuity. There are
2 windings; it's a bifilar wound coil, so both should have the same
resistance. One showed about 800 Ohms, but the other was open. Bummer. 

There's no way to get to the leads on these; I'd have to bust it apart to
get to those leads, but the solder connections are on the side I can get to.
So I tried warming up the solder. Wow, now I've got two 800 Ohm windings!

Power it up again and the signs of life are a bit stronger. So I followed
another of Dave's suggestions: Flush the works out with WD- 40. After that,
and a bit of cleanup, it's been running for the last
2 hours!

I don't care for the WD-40 as a permanent solution, so I think I'll let it
go like this for another day, then flush it out with alcohol and lube the
pivots with clock oil. Hopefully, that will be a more permanent solution.

If this actually works, this may be the very first late style clock that
I've managed to bring back to life.

That just leaves the distributor. The very special '72 only distributor.
That's a rusty mess and I don't know what I can do with it, but at least I
managed to get it all apart, so there's some hope. 
The big unknown is the very expensive '72 only vacuum advance can. 
The vacuum retard on those is almost always broken.

We'll see....


the input shaft was very tight. That turned out
--
*******************************
Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
*******************************

_______________________________________________
VWType3.Org mailing list - type3 at vwtype3.org
http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org
Contact gregm at vwtype3.org if you need help with the list.