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Old 10-03-2002, 05:55 PM   #1
tkeduk8r
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8cyl to 6cyl tach issues....

if i wanna go about changing a factory 8 cylinder tach to work with a six.. what for set up do i need... I believe it is an additional resistor wired in series, but since these things are kinda valuable i dont wanna dive in till sure... thanks for the help...
--mike
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68 C30 dump truck, 327,SM425,4.56 66K original
68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes
68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79
69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi...
70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP
72 Chevy K20 4x4 350/350/205/4.56 donor
72 Vette 350/M21/3.70 posi, triple black and super fast
84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's
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Old 10-03-2002, 11:06 PM   #2
Tim Christian
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I just hooked mine up the same way it works but is off a little.
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Old 10-03-2002, 11:37 PM   #3
Longhorn Man
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Isn't there supposed to be a screw back there?
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Old 10-03-2002, 11:51 PM   #4
Tim Christian
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Yes, They are a calibration screw on the back of the tach but I have had time to set down and get mine dialed in yet.
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Old 10-04-2002, 09:12 AM   #5
Huck
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I have a stock original 6 cyl tach dash cluster. Want to trade for your 8 cyl?? They look the same but do have different part numbers and I believe that adjusting the screw in the back will change the calibration but it would't be right at all rpms. e-mail me if interested- Huck---Huckfinn45@aol.com
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Old 10-04-2002, 01:58 PM   #6
tkeduk8r
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huck,
i would think bout it but it not mine, it is a colleague's dash... and i have a tach dash out of a 74 c60 that i would like ot put in my driver thats a six as well, so figured i could knock two problems out with one question.. i will ask him though if he is interested in trading next time i see him, well se what we can do...
--mike
__________________
63 C20 2WD, 230/SM420/4.11 73K
68 C30 dump truck, 327,SM425,4.56 66K original
68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes
68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79
69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi...
70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP
72 Chevy K20 4x4 350/350/205/4.56 donor
72 Vette 350/M21/3.70 posi, triple black and super fast
84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's
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