Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site voder.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!ihnp4!zehntel!hplabs!nsc!voder!gino From: gino@voder.UUCP (Gino Bloch) Newsgroups: net.auto Subject: Re: Fixing speedometer/odometer rate? Message-ID: <628@voder.UUCP> Date: Mon, 14-Jan-85 13:34:00 EST Article-I.D.: voder.628 Posted: Mon Jan 14 13:34:00 1985 Date-Received: Wed, 16-Jan-85 06:02:18 EST References: <3101@ucla-cs.ARPA> <1169@ut-ngp.UUCP> Organization: National Semiconductor, Santa Clara Lines: 26 [roll on, line-eater] After several confusing articles, I have to point out some definitions. ODometer: a device to measure distance travelled (the set of little wheels with numbers on the edges, giving readouts like 00375.4) SPEEDometer: a device to measure (instantaneous) speed (usually a fixed disk with marks around the edge and a needle-like readout that changes its orientation as the car speed changes; it is read by visually noting the needle's position with respect to the disk's edge marks) Thus, if the odometer is off, you must correct it by changing one or more of: the tires, the speedometer assembly (the odometer is mounted inside it), the gears inside the speedometer, or the gears at the transmission end of the speedometer cable. If the speedometer is inaccurate, you can diddle with the internal spring, or you can paste a new scale over the existing one, or you can file the magnet or the cup that it drives. If you change the odometer gearing at the transmission end, the speedometer will also change its calibration, so it might need adjustment - but do the gears first. It is possible, but not necessary, that the speedometer readout is independent of the (internal) odometer gearing. -- Gene E. Bloch (...!nsc!voder!gino) Extend USENET to omicron Ceti.