TACHOMETER (Rev Counter) REPAIR KITS
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Our Tachometer repair kits have been developed to provide an easy way of repairing Smiths tachometers (rev counters) found in many Classic Cars.
What goes wrong with Smiths Tachometers ?
Smiths tachometers often fail because of faulty electronics or in other cases they are not useable because the vehicle has been upgraded to have electronic ignition.
Another common problem is that the early RV type tachometers rely on a "tacho generator" to produce the drive signal for the tachometer. These tacho generators often fail or become inaccurate over time and are difficult and expensive to replace. Our repair kit overcomes this problem by allowing the tachometer to work directly from the ignition coil so that no tacho generator is required.
How does the repair kit work?
The repair kit replaces the tachometer electronics with modern surface mount technology. The replacement circuit board fits easily onto the rear of the existing movement with no need to remove the needle or dial. The new electronics takes its signal directly from the ignition coil so no Tacho generator is required.
Which Tachometers can be repaired?
The repair kit is designed for Smiths / Jaeger RV and RVI type tachometers. These tachometers can be easily identified as they have the letters "RV" or "RVI" marked on the dial (note that this lettering is very small and is sometimes at the bottom of the dial or at the base of the needle). Some early RV tachos have a different mounting hole arrangement which is not compatible with the kit - You can check this HERE.
The kit is suitable for 4, 6 or 8 cylinder cars with positive or negative earth and is compatible with contact breakers or electronic ignition.
How easy is the kit to fit?
The kit is very straight forward to fit - click here see our detailed fitting instructions and click here watch our video fitting guides.
Our Tachometer repair kits have been developed to provide an easy way of repairing Smiths tachometers (rev counters) found in many Classic Cars.
What goes wrong with Smiths Tachometers ?
Smiths tachometers often fail because of faulty electronics or in other cases they are not useable because the vehicle has been upgraded to have electronic ignition.
Another common problem is that the early RV type tachometers rely on a "tacho generator" to produce the drive signal for the tachometer. These tacho generators often fail or become inaccurate over time and are difficult and expensive to replace. Our repair kit overcomes this problem by allowing the tachometer to work directly from the ignition coil so that no tacho generator is required.
How does the repair kit work?
The repair kit replaces the tachometer electronics with modern surface mount technology. The replacement circuit board fits easily onto the rear of the existing movement with no need to remove the needle or dial. The new electronics takes its signal directly from the ignition coil so no Tacho generator is required.
Which Tachometers can be repaired?
The repair kit is designed for Smiths / Jaeger RV and RVI type tachometers. These tachometers can be easily identified as they have the letters "RV" or "RVI" marked on the dial (note that this lettering is very small and is sometimes at the bottom of the dial or at the base of the needle). Some early RV tachos have a different mounting hole arrangement which is not compatible with the kit - You can check this HERE.
The kit is suitable for 4, 6 or 8 cylinder cars with positive or negative earth and is compatible with contact breakers or electronic ignition.
How easy is the kit to fit?
The kit is very straight forward to fit - click here see our detailed fitting instructions and click here watch our video fitting guides.
- No soldering
- Neatly replaces existing circuit board, using same screws
- Fit from rear - no need to remove dial and needle
- On board, push button calibration - no need to connect to computer or phone
- Suitable for positive and negative earth cars, no extra parts needed
- Suitable for 4, 6 and 8 cylinder cars
- Tacho-generator no longer needed
- Step-by-step instructions with clear pictures
- Online videos show how it's done