Replacement Tachometer

[bdea]

I have read somewhere that you can replace the inside mechanism of a Smiths tachometer with a VDO unit- Question:

1) Can the original faceplate used in place of the VDO faceplate?
2) Does the markings match the Smith unit to be accurate? ie 1k rpm- 7K rpm

Is the VDO Vision Tachometer #333 151, 7,000 RPM, 3 1/8" dia. The correct one?

I am trying to get an accurate Tachometer because my current Smith RVI unit will not work wjth my Pertronix/ MSD unit. I know you have to convert it to a voltage sensing unit. Does anyone have a current repair shop for this conversion ie Moma/ Nisongers and what did they charge?

When I opened up my Smith unit, I thought I could just replace all capacitors and resistors and it might work as stated on other forums, who knows!

Thanks for all the wonderful knowledge in these forums, Brad

[miked]

Brad,

I have just boxed my tacho and sent it to Speedy Cables in South Wales. Tel no 01639 732213. They refurb'/macth to the ignition stated. It is about ?50 plus vat and postage.

regards Mike

[bdea]

Brad,

I had a bad experience with Nisonger. I sent them my tach, speedo, and combo gauge. While they were able to fix the speedo ($115) and the combo ($120), despite the claims on their web site, they were not able to convert my tach to work with a Piranha ignition system. I had to send it back twice and they were unwilling to refund the $115 I had paid to modify the tach. Eventually, I had to get Visa to reverse the charges. I also ordered an ammeter from them and they sent the wrong one. So I still don't have a tach that works with this electronic ignition system and I'm hesitant to use a vendor that does not accept credit cards, so I'm not sure what I will do next.

Frank Howard