Thomas J. Bianculli Posted August 18, 2016 Share Posted August 18, 2016 (edited) I've been looking for a 6 volt tach for years, perhaps not hard enough. The closest I had come was a Sun without a sending unit on eBay. Then last summer at a show I saw a tach in a 1937 Special. I asked the owner and was referred to Westberg Mfg. Co, in Sonoma, CA www.westach.com They have been making tachs for years and make all types of instruments, many for aircraft. I phoned and bought one but by the time it arrived my 1940 Super was in storage. I get evicted the first time my wife sees frost on the windshield of her car and off to the barn we go. The cost for tach, light kit and mounting case and shipping was $186.47. This week was the first time a had a chance to install the tach. The wiring is simple, coil and ground for the tach, keyed power and ground for the light. I mounted it to the steering column with a clamp, rotated to the right to clear the speedometer. Miraculously I got it right the first time. The needle is steady and the face easy to read. My car is mainly a cruiser and not judged, but the tach can be removed in a few minutes if you have a show car. Edited August 18, 2016 by Thomas J. Bianculli (see edit history) 7 Link to comment Share on other sites More sharing options...
Daves1940Buick56S Posted August 19, 2016 Share Posted August 19, 2016 Nice! I had an old 12v tach that I had in my old '66 Ford so I decided it looked retro enough for the Buick. I think it was originally out of a Studebaker, I got it from a flea mkt in about 1973. I got a 10A 6v to 12v boost converter on eBay for abt 10 bucks so I have 12v available in the car. The vac gauge is from the late 1950s. Cheers, Dave 3 Link to comment Share on other sites More sharing options...
Thomas J. Bianculli Posted August 24, 2016 Author Share Posted August 24, 2016 I like the 5 K redline... Mine is screamin at 4. With 3.90 gears my Garmin says I am going 70 mph, the speedo says 55. I wish i could find that 19 tooth gear... Link to comment Share on other sites More sharing options...
Larry Schramm Posted August 24, 2016 Share Posted August 24, 2016 A friend of mine has a 1926 International Truck and the idle is 400 RPM and the redline is about 1,200 RPM. 2 Link to comment Share on other sites More sharing options...
Thomas J. Bianculli Posted August 25, 2016 Author Share Posted August 25, 2016 On 8/24/2016 at 10:43 AM, Larry Schramm said: A friend of mine has a 1926 International Truck and the idle is 400 RPM and the redline is about 1,200 RPM. A RR club I belong to is restoring a 1940 Brookville Rail Bus that was built for the US Army in 1940 by Brookville Locomotive in Brookville PA. It is powered by a 4 cylinder Hercules Diesel. It has no tach but sounds like 1200 RPM wide open is about right. Link to comment Share on other sites More sharing options...
bob duffer Posted August 26, 2016 Share Posted August 26, 2016 Would that tach work on a 1934 Buick ? Link to comment Share on other sites More sharing options...
Thomas J. Bianculli Posted August 27, 2016 Author Share Posted August 27, 2016 Hi Bob, I don't see why not. It is rated for 8 cylinder, 6 volt, positive or negative ground. I followed the negative ground instructions . The tach has 2 wires, one goes to ground, the other to the terminal on the coil where the thin wire goes to the distributor. The light has one wire to the ignition switch and one for ground. I connected both grounds to one screw under the dash. The company is Westberg Mfg. Co. www.westach.com They made mine to order, warranty is 12 months from manufacturing date. Link to comment Share on other sites More sharing options...
bob duffer Posted August 27, 2016 Share Posted August 27, 2016 Thank you very much. Link to comment Share on other sites More sharing options...
Grant L. Meredith Posted June 12, 2023 Share Posted June 12, 2023 Thomas, wondering if that Tach is working good still later on? I’m looking at adding one like it to my 1928 Link to comment Share on other sites More sharing options...
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