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Re: '71 squareback clock repair
Jeff Carver wrote:
>
> I'm just defiant or something I guess. I refuse to have my VW's
> exhibit behavior that is "typical". Thus, I must have a working
> clock and heaters. The following applies to the
> mechanical/electrical type of clocks. My '67 has one, and I believe
> the other years are similar.
>
> They work by engaging a solenoid to slam a spring driven
> mechanism. As the mechanical spring energy gets used up, an
> electrical contact is made, the solenoid slams the spring and
> mechanical action starts once again, and the electrical stuff does
> nothing until needed.
>
> The typical failure mechanism is a fusible link in the electrical
> circuit. I putzed around with my clock connected to 12V, grounded
> the housing, poking around with a screwdriver, got lucky, and a
> connection was made and the clock jumped to life in my hands. I
> repeated this until I found out WHERE I was making the connection.
>
> A VERY nerve wracking experience, if you are not prepared for it.
> To have something jump to life, then die again. Patience is needed
> to wait for the clock to wind down to have the solenoind jump again.
>
> I finally found the place where the contact should have been,
> (disconnected from power of course) and wrapped a piece of copper
> wire around the connection. The clock has never failed since.
>
> There is apparently (from Type 2 list info) a fusible link inside the
> clock that I replaced with the copper wire. BTW, I used telephone
> wire stripped of the insulation. I someone does this and has access
> to a digital camera or such, it would be worth while to post a
> picture of this for others.
>
> Stare at the internals of the clock and follow the current path from
> the connector to the solenoid. Don't forget to ground the housing to
> assure a ground path. Look for a place where it looks like a rivet
> is missing.
>
> I was also having a grounding problem, so I wired a separate ground
> wire from the clock housing to a solid body ground.
>
> > My clock seems not to be working anymore. Do you have any idea how do I
> > repair it? By changing the fuse? I would like to hear out your tips!
>
> - Jeff '67 Sqbk
Wow! Thanks, Jeff - I know we appreciate good info like this out
here in "no one's clock has worked for years" Land....We'll give it a
try, maybe there'll be a whole clock rennaissance out there! :) Now, if
someone could just figure out how to make the wishield washer fluid
work..... ;) -T