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02-17-2003, 10:13 PM
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#1 |
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Registered User
Join Date: Nov 2002
Posts: 41
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tach differences
Does anyone know if there is any difference in 6 & 8 cylinder original tachs? Someone told me once that you can make them work on either.
Thanks |
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02-17-2003, 11:27 PM
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#2 |
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D.U.F. Member
Join Date: Nov 2002
Location: Huron/Brookings, SD
Posts: 288
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I don't know about your tach question, but it's good to see another South Dakota member on the board. There's not a whole lot of us. Just wanted to say hi and welcome to the board.
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MEMBER OF THE DISCS UP FRONT CLUB '72 C-10 LWB Highlander, A/C, tilt TH350 w/ B&M shift kit, 327LJ bored .040", cast flattops, forged crank, L31 Vortecs, 9.25:1 CR, Comp conical valvesprings, Crane Energizer single pattern 216/.454", Professional Products Power Plus Crosswind intake, Edelbrock #1406 600cfm, HEI, dual exhaust, open 3.08 12bolt '68 C-10 4spd (not running) '79 C-10 LWB Mild 350 '80 Caprice Classic, 2-dr '97 GMC K-1500, SWB, Reg. Cab, Z-71, 5.7, Auto |
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02-17-2003, 11:29 PM
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#3 |
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Registered User
Join Date: Nov 2001
Location: sparks, NV
Posts: 1,141
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jeffbo, I see your from watertown. I was there a couple of years ago at the terex plant for some training.
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68 short fleet with 71 front clip 2wd jaguar blue  99 chevy ext cab shrtbed z71 loaded 99 chevy swb fleetside(daily driver)  Sparks, Nevada |
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02-18-2003, 12:12 AM
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#4 |
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Roadtrip!
 
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,787
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6 or 8
As far as i know they are not interchangeable. The readings will be inaccurate. If there is a way to change them over, i am not aware of it.
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02-18-2003, 02:23 PM
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#5 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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The 6 cylinder tachs can be calibrated to work on 8 cylinder engines. If you look on the back, there is a taped up hole for calibration. Just hook the tach to an engine along with a known tach for comparison and adjust it at various rpm's.
Jim |
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02-21-2003, 01:52 PM
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#6 |
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Join Date: Dec 1999
Location: Eastern - Manitoba Canada, Winnipeg
Posts: 4,369
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This hole.
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Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife. |
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02-21-2003, 02:01 PM
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#7 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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That's it!
Nice pic. Jim |
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