6.9L/ Help Please
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6.9L/ Help Please
Ok i have bought a Tachometer from Suart Warner and i installed it today. There is a code that is used to set the tachometer which runs of a signal from the alternator. I have got the tach to read 750-800 around the idle. What i need to know for the exact setting of the tach is the Diameter of the crankshaft pulley (in inches), the diameter of the alternator pulley (inches), and the number of poles the alternator has. I have measured the two pulleys but it was kind of hard to get to the crankshaft pulley so if anyone knows the exact number of the crankshaft pulley on a 1984 6.9L Diesel that would be great. What would really help is if someone with a 1984 6.9L Diesel 4x4 with a C6 transmission has a tachometer on it if they could tell me some readings at different miles per hour (constant mph) so i can compare mine to that. Thanks for the help.
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