Installing a Tachometer in a 86 4Runner DLX (in progress) - YotaTech Forums


Go Back   >


Staging Area For Tech Article Submissions Got a tech article to submit? Post it here

Installing a Tachometer in a 86 4Runner DLX (in progress)

 
 
LinkBack Thread Tools Search this Thread
Old 02-07-2013, 12:16 AM   #1
Registered User
Thread Starter
 
LITLRED's Avatar
 
Join Date: Nov 2008
Location: Vancouver< WA
Posts: 247
Installing a Tachometer in a 86 4Runner DLX

Step 1. Modify the tach to be compatible with Toyota's dimmer circuitry.

The Tach came with a +12v illumination lead and one ground wire.
It is modified by cutting the ground side of the bulb and connecting a ground lead to it. I chose to use solder and heat shrink tubing.
Step 2. Attach the wires temporarily to make sure it works before cutting up your dash!
On my '86 the tach signal is a black wire that comes off the igniter. Instead of cutting the wire here, I tapped into it with a voltage tester. I was hoping to find a more convenient tach signal wire at the instrument cluster.

One of the test connectors had a switched +12v connection.

Then connect the ground to a good chassis ground and when the truck starts up the tach should register rpms.


Step 3: Mounting the Tach.
I chose to mount it on the left side of the cluster. Pretty easy.


Step 4: Connecting the 5 Wires


I found a +12v switched power wire and a Tach signal wire connected to the instrument cluster.
Black Tach Signal Wire

+12v switched power wire connection


The 2 illumination leads I connected in parallel with connections previously made for an oil pressure gauge.


The white Tach illumination lead connects to the green defogger switch wire.


The illumination ground connects to the Red/Black dimmer switch wire.
For the main ground i used a ground behind the lower left cover next to the main fuse panel.


The wires fit neatly in the crack between the dash and A pillar without having to drill a hole.


Final product.

Last edited by LITLRED; 02-07-2013 at 10:48 PM. Reason: in progress
LITLRED is offline  
 

Related Topics
Thread Thread Starter Forum Replies Last Post
Icentropy's $400 4runner build icentropy 86-95 Trucks & 4Runners 14 10-22-2016 10:24 PM
88 Pickup Transmission Swap mskalmus 86-95 Trucks & 4Runners 6 03-21-2016 12:41 PM
Which Toyota do I have Cplmike Newbie Tech Section 5 07-08-2015 09:47 PM
1991 Truck 3vze Cooling Fan Compatibility zd92655 86-95 Trucks & 4Runners 0 07-05-2015 05:25 PM
How to fix Steering linkage ptb12 84-85 Trucks & 4Runners 1 07-05-2015 02:49 PM


Tags
4runner, 84, 86, custom, dashboard, gauge, installation, location, oil, pressure, signal, tach, tachometer, tachwire, wire, wired, yotatech

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 07:39 AM.


2010 InternetBrands, Inc.