RE: Speedometer woes!

[laborboy@xxxxxxxxxx]

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Vaseline, according to a supposed instrumentation expert (petroleum 
jelly)

Zack

Gary H. wrote:
> 
> You may want to call and talk to the place that rebuilt the speedo for 
> their opinion on the 'clicking' noise. 
> 
> A dry or binding speedo cable, or a cable that has a slight bend or 
> kink, causes a 'bounce' in the speedo needle. The core "winds up" 
> slightly, which makes the speed reading drop, then the cable "unwinds" 
> resulting in what looks like speed increasing. Every revolution of the 
> cable repeats the process and the speedometer needle bounces. 
>  
> The Factory Service Manual reads: "Disconnect the cable at the 
> speedometer housing, and remove the shaft. Clean the shaft and coat with 
> 
> a very thin film of lubricant and reinstall the shaft. Clean the excess 
> lubricant from the top one-foot of core and from the ferrule before the 
> shaft is inserted compleytely. CAUTION: Excessive lubricant may cause 
> speedometer malfunction." 
> 
> The Factory Service Manual calls for using "Mopar All-Weather" 
> Speedometer Lubricant, part number 1243632" which is a long gone part 
> number I'm sure.
> 
> What's the current preferred Speedometer Lubricant for '62 to '65 
> Mopars? 
> 
> Gary H.
> 
> 
> Douglas Sutherland wrote:
> > My speedo was rebuilt a year ago (it's >still under warranty)  Could it 
> > be dried out already?
> > 
> > >From: Lee Sumpter > >Need to lube the speedo.Be very careful, the >>oil 
> > >will take the numbers off if it gets on them!
> > >Lee Sumpter
> 
> > >----- Original Message -----
> > >From: "Douglas Sutherland" 
> > >Sent: Monday, June 07, 2004 10:13 AM
> 
> >>Last year the speedometer on my '64 Sport Fury died.  I replaced >>the 
> >>speedometer cable (which did not help) and then had the >>speedometer 
> >>unit rebuilt.
> >>
> >>When I put it all back together the speedometer needle "bounced" >>until 
> >>
> >>40  mph and then held steady.  Last weekend the speedometer >>started 
> >>clicking and >bouncing erratically (at all speeds).  I >>immediately 
> >>unhooked the cable.
> >>
> >>What's the poroblem?  The speedometer cable is turning strong.  Is >>my 
> >>rebuilt speedo unit defective?  What makes it click?  What >>causes the 
> >>needle to bounce?  Help!

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