John
I just measured the length of the tube on the gauge for my BN4. It was loosely
coiled and taped together for storage and I didn't straighten it (I figure the
less you mess with that tube the better) but measured the coils as carefully
as I could. Anyway I got 85" from the back of the gauge to the shoulder on the
temperature bulb. That should be within an inch or so of the actual length.
When it was on the car I got couple of loops and my run from the back of the
gauge to the firewall was a gentle curve. As far as I know it's the original
gauge and the copper tube appears to be silver ie. zinc plated.
I couldn't find anything stamped on the back. Hope this helps.
Rick
'59 BN4
> Does anyone have a spare water temp/oil pressure gauge that they could
> measure the length of the spiral protected capillary tube?
> BTW, The concours book says the copper tube should be zinc plated. I
> requested that mine be zinc plated but the vendor said they have never
> had this request before (and did not zinc plate it). Who's right?
> (vendor is Moma .. not some unknown source).
>
> Cheers,
> John
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