Jim,
There is some type of volatile liquid in the capillary tube (the bulb
at the end is a reservoir). I have on a couple occasion successfully
soldered these back together when the tube has snapped, but ONLY if the
break occurs when the guage is not in service at the time or subsequent
to the break. If the bulb heats up and there is a break, the precious
juice escapes. I have tried using starting ether as a replacement, but
have not been successful in resurrecting a gauge with it. There are
places who can restore them though. I think Palo Alto Speedometers is
one who can do it. Let me know if you are able to find out any more.
You might try gingerly floating he flame from a match or lighter under
the bulb too see if you get a reaction. Don't keep the flame too long
as the solder can be melted at those temperatures.
Gerard
At 6:21 AM -0700 8/2/01, Toby Atwater wrote:
>I thought the cable was a capillary tube full of ether? Dunno where I found
>that info, but that's what I remember. Anybody?
>
>Toby
>
>
>Hi, there!
>
>Gauge is probably good but "cable" shot;
>"cables" contain a gas of some sort, I
>believe, and are very easily damaged
>even when they appear intact and in
>"good shape".
>
>Can be used as a "core" when purchasing
>a "new" rebuilt which is just as expensive
>as "attaching" a new "cable", I believe, or
>nearly so to the extent it doesn't pay to
>screw around with the "old" item, so to
>speak!
>
>
>
>
>Cap'n. Bob
> '61 :{)
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