The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-27-2013, 10:05 AM   #1
Rubble
Registered User
 
Join Date: Feb 2012
Location: Big Valley. Alberta
Posts: 674
Factory tach wiring

Trying to get my factory tach working in the 81 K35. There was a thread a while ago with some diagrams,but I can't seem to find it.Any help would be great,TIA.
Posted via Mobile Device
Posted via Mobile Device
__________________
1977 Chev C30 454/465/14ff DRW
1974 Chev C20.350/465/14ff

" Rock n Roll ain't noise pollution"
Rubble is offline   Reply With Quote
Old 09-27-2013, 10:54 AM   #2
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,932
Re: Factory tach wiring

The 81 diagrams are in the back of the service manual. Look in my sig.
__________________
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...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
hatzie is offline   Reply With Quote
Old 09-27-2013, 11:19 AM   #3
Twisted78SS
Wide n'Low
 
Twisted78SS's Avatar
 
Join Date: Jan 2007
Location: La Center, WA
Posts: 1,511
Re: Factory tach wiring

Here you go, I posted these on another thread some time back, adding to the list as I get time

http://www.2heeldrive.com/Chevrolet/...ng_Diagrams%2F
__________________
Trippin Hazard.. 67 swb,
Gold Member.. 68 Suburban
Air Force Retired
Twisted78SS is offline   Reply With Quote
Old 09-27-2013, 11:55 AM   #4
Jonboy
Slots go on anything!
 
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
Re: Factory tach wiring

There are only 3 wires to the tach itself. You need a signal wire from the distributor to the tach, switched 12V+, and ground. The back of the tach is labeled as well.
__________________
1974 Jimmy- 5.3/4L80e/NP241
Jonboy is offline   Reply With Quote
Old 09-28-2013, 04:29 AM   #5
Rubble
Registered User
 
Join Date: Feb 2012
Location: Big Valley. Alberta
Posts: 674
Re: Factory tach wiring

Thanx guys,that should work...
Posted via Mobile Device
__________________
1977 Chev C30 454/465/14ff DRW
1974 Chev C20.350/465/14ff

" Rock n Roll ain't noise pollution"
Rubble is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:05 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com