[T3] Speedometer/ Odometer woes

[William J]

 Last thing you want to try to do is remove the needle .

 I don't know how skilled you are but you need to remove the knob then the 
chrome ring by lifting up a few of the tabs that lock it to the housing .You 
will then be able to remove the lens and trim ring which will come away , 
the unit comes out through the front  .  This will allow you to remove the 
two screws on the back and carefully lift the unit out and be very careful 
not to damage the needle or face. I lift it using the drive stub.

 The part that causes this failure is this aluminum gear on the shaft that 
holds the odometer numbers at the opposite end is a brass drive gear , 
sometimes this brass gear is loose on that shaft . On the 2 I have repaired 
it was that aluminum gear .

 You need to remove the trip number wheels first because the aluminum gear 
can't be removed from the top . The trip meter number wheels have small 
engagement deals so you need to remove that shaft first. . It's tricky at 
best , not so much taking it apart but getting the odometer numbers to line 
up to the milage you have now , you can end up showing between 2 numbers if 
you get it wrong . I use a drill bit to hold the odometer numbers in the 
housing when I draw out that shaft then keep moving the bit touching the 
shaft until it's out enough to get that aluminum gear out minding the 
plastic or nylon drive gear so you don't damage it . You don't need to pull 
the shaft with the small brass gear all the way out .If you got this far 
allow the aluminum gear to come out and then I use a small ball peen hammer 
and tap with another small hammer on each sde of that gear . The idea is to 
shrink the hole in that gear on both sides while minding the small prongs on 
that gear . The the fun begins as you  insert the aluminum gear and lining 
it up with the shaft , then once you see it's lined up for sure and mindding 
the brass gear to the plastic worm gentley tap until it starts then use a 
small vice with a socket and a small C clamp to push the shaft back in but 
not so tight that the brass gear is tight against the housing just a bit of 
play .

 Like I said it's tricky and it might be best just to send it to Jim.

 Some people use a small pointed punch to place  small dimples around both 
sides of the aluminum gear to shrink it's bore ,  I found that does not work 
very well over time because you need to get close to the bores edge a small 
ball peen like I described works better and really stays . Also many times 
that small black or gray cover behind the needle comes loose so there is 
much to be aware of.


----- Original Message ----- 
From: "Douglas Campion" <campiondouglas at yahoo.com>
To: <type3 at vwtype3.org>
Sent: Tuesday, August 30, 2016 7:28 AM
Subject: [T3] Speedometer/ Odometer woes


> Hi all, First time poster here. I have a Type 3 with a speedometer with 
> the odometer and trip odometer installed. Recently the odometer part quit 
> working. I thought I would tae it apart and see if i could fix it. he 
> gears are working and the shaft with the odometer spins but no movement is 
> transferred to the odo numbers. Can someone tell me how to remove the 
> needle so I can remove the faceplate and have a look at the gears and the 
> numbers on the shaft. OR just suggest how to make the odo work 
> again.Thanks,Doug
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