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 13Likes
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Post By ALF
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Post By CompClassics
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Post By ALF
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Post By ALF
09-28-2021, 06:04 AM
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CC Member
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Join Date: Sep 2003
Location: Switzerland,
CH
Cobra Make, Engine:
Posts: 536
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Not Ranked
Tacho on CSX2345
CSX2345 is showing a Smith Tacho (tell tale)
But what would be the correct ID of it to search for one. 
__________________
Driving with your Cobra is fun,
Racing with your Cobra is amazing,
Driving hill-climbing races with your Cobra is.... HAVEN!! 
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09-28-2021, 06:59 AM
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CC Member/Contributor
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Join Date: Sep 2016
Location: (Beautiful) Sequim,
WA
Cobra Make, Engine: Pacific Roadster, 347 cu.in. 5-speed
Posts: 1,994
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Not Ranked
Alf, I can call Steve and ask him? I think you have his Email also? I have to call him anyway, with this news. This is been the longest 6months of my life (What with the shakes, fever, everything that go's with withdrawals)  . I brought another Cobra yesterday, it's not healthy to be without a Cobra for long periods of time. Give you the details and pictures later on. Cheers Tom. |
09-28-2021, 07:42 AM
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CC Member
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Join Date: Sep 2003
Location: Switzerland,
CH
Cobra Make, Engine:
Posts: 536
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Not Ranked
Hi Tom
Great to have you back healthy and WITH a new Cobra
Looking forward to get some news in my inbox.
I can not imagine what it means being without a Cobra.
In November I'll celebrate my 25th anniversary. 
__________________
Driving with your Cobra is fun,
Racing with your Cobra is amazing,
Driving hill-climbing races with your Cobra is.... HAVEN!!
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09-28-2021, 10:04 AM
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CC Member
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Join Date: Feb 2013
Location: Carlsbad,
Ca
Cobra Make, Engine: SAI FIA, 289HP (5-bolt), 48IDA Webers
Posts: 1,244
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Not Ranked
It is a Smiths Chronometric and utilizes a mechanical drive. There are various models of this tachometer for different applications and where the tachometer drive mechanism is attached to, crankshaft, distributor, camshaft, etc. the drive SAI used was off of the crankshaft with a specially fabricated bracket and gear box, the ratio would have been a 2:1 ratio. There are also different variations of the tach that would have been competition specific with the red needle that would indicate the highest rpm achieved, it also has a reset button for the tattletale needle.
I have this setup on my Cobra, we fabricate the bracket and drive assemblies per the original SAI design..
The tachs have been increasingly hard to come by and are fairly expensive when found. Make sure the tach. You get fits the application, Nisonger can do repairs and ratio conversions also.
If you would like more info email me directly at jkb5 at sbcglobal.net
The correct tachometer with the tattletale feature is an RC83. EX2
Last edited by CompClassics; 09-28-2021 at 04:06 PM..
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09-29-2021, 12:59 AM
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CC Member
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Join Date: Sep 2003
Location: Switzerland,
CH
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Hi John
Many thanks for the great details/pictures.
__________________
Driving with your Cobra is fun,
Racing with your Cobra is amazing,
Driving hill-climbing races with your Cobra is.... HAVEN!!
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09-29-2021, 01:02 AM
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CC Member
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Join Date: Sep 2003
Location: Switzerland,
CH
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Posts: 536
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Not Ranked
Do you know which Smith Tachometer version got mounted on Kens Car?
It seems to be a different build.
__________________
Driving with your Cobra is fun,
Racing with your Cobra is amazing,
Driving hill-climbing races with your Cobra is.... HAVEN!!
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09-29-2021, 01:20 AM
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CC Member
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Join Date: Aug 2009
Location: Adelaide,
SA
Cobra Make, Engine: AP 289FIA 'English' spec.
Posts: 13,150
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Not Ranked
Alf,
There are Smith chronometric tachometers available that look virtually identical to the difficult to find RC 83 that might interest you. Typically though, they don't have the red tell-tale needle, but all other details are very close to the Smiths RC 83.
English bikes (Nortons and Vincents, for example) were often equipped with these 80mm tachometers, and they are available at incredibly cheap prices ....say, around AUD40 here in Aus.
Here's one...
Cheers!
Glen
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09-29-2021, 01:29 AM
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CC Member
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Join Date: Aug 2009
Location: Adelaide,
SA
Cobra Make, Engine: AP 289FIA 'English' spec.
Posts: 13,150
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Not Ranked
Also, this table might be of some use to determine the differences....
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09-29-2021, 01:32 AM
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CC Member
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Join Date: Feb 2013
Location: Carlsbad,
Ca
Cobra Make, Engine: SAI FIA, 289HP (5-bolt), 48IDA Webers
Posts: 1,244
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Alf
I believe the Miles tach ay have been a Jaeger, it was also a larger diameter.
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09-29-2021, 04:46 AM
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CC Member
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Join Date: Mar 2006
Cobra Make, Engine:
Posts: 231
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Some times the old Smiths logo tachs were used.
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09-29-2021, 08:13 AM
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CC Member
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Join Date: Sep 2003
Location: Switzerland,
CH
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Quote:
Originally Posted by CompClassics
Alf
I believe the Miles tach ay have been a Jaeger, it was also a larger diameter.
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I think I found it.
It took me the time of a boring meeting 
https://www.youtube.com/watch?v=cdKYJQh2nAk
Smith
RC 167
__________________
Driving with your Cobra is fun,
Racing with your Cobra is amazing,
Driving hill-climbing races with your Cobra is.... HAVEN!!
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