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09-24-2018, 02:07 PM
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#1 |
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Registered User
 
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,051
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factory tach rebuild
Has anyone had their factory tach rebuilt? Is the tach man still in business?
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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09-24-2018, 02:28 PM
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#2 |
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Registered User
Join Date: May 2012
Location: horseheads,ny rust belt
Posts: 2,794
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Re: factory tach rebuild
never played with one but lmc has new units , http://www.lmctruck.com/icatalog/cc/full.aspx?Page=93
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77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great. |
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09-25-2018, 01:11 PM
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#3 |
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Registered User
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,051
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Re: factory tach rebuild
Those are nice but not the same as what I have. The LMC picture shows they have a 'window' (for lack of a better term) for two warning lights in the bottom of the gauge face and mine only has one 'window'.
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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09-26-2018, 02:40 PM
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#4 |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
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Re: factory tach rebuild
Wilcox sells replacement boards that fit some but not all. You send em your tach and they replace the board and calibrate it.
https://willcoxcorvette.com/corvette...uck-tach-board
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1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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03-01-2019, 05:24 PM
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#5 |
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Registered User
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,051
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Re: factory tach rebuild
So, I went ahead and sent my factory tach to the TachMan, www.tachman.com Best warranty of all the places I contacted and fastest turn around too. A couple places I never even got a reply from, others said they could update the electronics and then decided later they couldn't. Took 3 weeks from the day I shipped it to when I received it back. He gave good feedback and provided pictures of the finished product prior to shipping it back to me too. I haven't installed it yet, just got it back on Tuesday but looking forward to getting it installed this weekend weather and time permitting.
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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03-02-2019, 03:31 PM
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#6 |
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Registered User
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,051
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Re: factory tach rebuild
Got the rebuilt tach in and it works perfectly, smooth movement. Used to be jumpy and randomly go up and around to 4 or 5000 while driving.
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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03-02-2019, 05:03 PM
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#7 |
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MOTORHEAD!
Join Date: May 2000
Location: Devon AB, Canada
Posts: 849
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Re: factory tach rebuild
looks great!
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82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph |
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03-04-2019, 02:23 PM
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#8 |
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Registered User
Join Date: Nov 2010
Location: Belfair, Wa
Posts: 477
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Re: factory tach rebuild
What'd it cost?
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03-04-2019, 02:26 PM
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#9 | |
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Registered User
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,051
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Re: factory tach rebuild
Quote:
http://www.tachman.com/oldsun.htm
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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