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Triumph Spitfire 1978 speedometer

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paul_silverman@mail.com
 
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Default Triumph Spitfire 1978 speedometer - 10-22-2007 , 04:00 PM






My original Smith speedometer broke down last summer. I replaced the
speedo cable, thinking it was the source of the problem, but it is not
the case. Now here's my question: can those speedometers be opened
and repaired, or is it wiser to say I should get a new one? Thanks.

Paul




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Tom Sharrocks
 
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Default Re: Triumph Spitfire 1978 speedometer - 10-22-2007 , 06:00 PM






Paul

Triumph Spitfire speedometer....
There are so many advertised on Ebay why bother, just obtain and install
another?

Tom

<paul_silverman (AT) mail (DOT) com> wrote

Quote:
My original Smith speedometer broke down last summer. I replaced the
speedo cable, thinking it was the source of the problem, but it is not
the case. Now here's my question: can those speedometers be opened
and repaired, or is it wiser to say I should get a new one? Thanks.

Paul




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paul_silverman@mail.com
 
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Default Re: Triumph Spitfire 1978 speedometer - 10-22-2007 , 08:02 PM



On Oct 22, 6:00 pm, "Tom Sharrocks" <wad... (AT) uku (DOT) co.uk> wrote:
Quote:
Paul

Triumph Spitfire speedometer....
There are so many advertised on Ebay why bother, just obtain and install
another?

Tom

paul_silver... (AT) mail (DOT) com> wrote in message

news:1193083212.270814.90220 (AT) q3g2000prf (DOT) googlegroups.com...

My original Smith speedometer broke down last summer. I replaced the
speedo cable, thinking it was the source of the problem, but it is not
the case. Now here's my question: can those speedometers be opened
and repaired, or is it wiser to say I should get a new one? Thanks.

Paul
Thanks for the answers. I think I'll try to fix it first or have
someone take a look at it, and then if it fails I'll get a new one.



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Jim Warren
 
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Default Re: Triumph Spitfire 1978 speedometer - 10-23-2007 , 03:55 AM



paul_silverman (AT) mail (DOT) com wrote:
Quote:
My original Smith speedometer broke down last summer. I replaced the
speedo cable, thinking it was the source of the problem, but it is not
the case. Now here's my question: can those speedometers be opened
and repaired, or is it wiser to say I should get a new one? Thanks.

Paul

Triumph speedometers are quirky things. Sometimes if you are very
careful to align the cable with the mount on the back, and then put
that connection under a little bit of tension, a dead unit can be
persuaded to work. It doesn't always work but it's is worth a hour of
fiddling with it before forking out for a repair or replacement.

Jim


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Rob
 
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Default Re: Triumph Spitfire 1978 speedometer - 10-23-2007 , 05:50 AM



Jim Warren wrote:
Quote:
paul_silverman (AT) mail (DOT) com wrote:

My original Smith speedometer broke down last summer. I replaced the
speedo cable, thinking it was the source of the problem, but it is not
the case. Now here's my question: can those speedometers be opened
and repaired, or is it wiser to say I should get a new one? Thanks.

Paul

Triumph speedometers are quirky things. Sometimes if you are very
careful to align the cable with the mount on the back, and then put
that connection under a little bit of tension, a dead unit can be
persuaded to work. It doesn't always work but it's is worth a hour of
fiddling with it before forking out for a repair or replacement.

Jim
One thing that does happen, oil climbs up the cable into the speedo. the
oil needs to be cleaned out. This happens with old worn cables
(clearance) without any felt? seals etc, The needle shaft is balanced
with a clock spring this is where you have to clean to ensure it has
free movement.

Inside, the needle shaft mechanism has to move freely without any oil
build up. You don't have to dismantle any of the mechanism, still don't
play with it either or you may alter the calibration,

Can be done, just be careful not to touch anything that shows, like the
face, finger prints don't wipe off. Remove the bezel and glass, as
stated elsewhere, remove the screws from the back, then the guts are
loose. (To remove the face, normally, pry off the needle, remove the
two screws.) [You may not have to remove the face if careful]

A couple of drops very light oil on the moving parts after the clean,
sewing machine oil.


I have used Wurth brake cleaner pressure pak. Dries clean. Still don't
get it on the face, may wash the numbers off.

http://www.dkcars.co.uk/dkonline/new_spares/brake.php?mode=details&action=overview&product_id= 607


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