Tachometer Sensor wiring - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by oldnotslow, this thread has received 3 replies and been viewed 1320 times.

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 08-04-2017, 02:01 AM Thread Starter
Member
 
oldnotslow's Avatar
 
Join Date: Dec 2010
Location: Salem, OR
Posts: 409
Points: 86,503
Thanks: 121
Thanked 123 Times in 89 Posts
Tachometer Sensor wiring

3406B. Tach sensor on right side of flywheel housing has two wires. When replacing with a new sensor does it matter which wire goes to each of the two connections on the new sensor? Also, how far do you back the sensor out after screwing it in to touch the flywheel? Is 1 turn out correct? Thank you for any info.
oldnotslow is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 08-07-2017, 09:07 AM
w9l
Junior Member
 
w9l's Avatar
 
Join Date: Nov 2012
Location: Southwest Mo.
Posts: 515
Points: 59,090
Thanks: 237
Thanked 215 Times in 171 Posts
Garage
Bottom out gently then back out a turn is the way I was taught .




if anything, I make real sure it is out the minimum of 1 turn. Never had an issue that way. I wouldn't swear to it, but I think I got into the same dilemma about the wires after having wiring ripped to shreds. IIRC I checked with KW when getting the new 30+ $ pigtail and the schematic did not specify any polarity (for lack of a better term) I wouldn't swear to this 'cause it has been a few moons. It was on a speedo sensor. But they are both just proximity sensors. Crying shame you ask a question like this and just get crickets for 3 days on here. And then of course, a half ----- reply like mine. This used to be THE place..... They call it progress....

Just me
w9l is offline  
post #3 of 4 (permalink) Old 08-07-2017, 04:27 PM
Junior Member
 
Jasong's Avatar
 
Join Date: Feb 2015
Location: Plant City Fl
Posts: 314
Points: 35,581
Thanks: 41
Thanked 26 Times in 25 Posts
Aw, come on. It was the weekend.
If it's a pulse sensor, there is no polarity.
If it's a hall effect, it does. You won't hurt it, it just won't work.
I would go about 1 1/4 turns to be safe.
Jasong is offline  
post #4 of 4 (permalink) Old 08-08-2017, 02:41 AM Thread Starter
Member
Threadstarter
 
oldnotslow's Avatar
 
Join Date: Dec 2010
Location: Salem, OR
Posts: 409
Points: 86,503
Thanks: 121
Thanked 123 Times in 89 Posts
Thank you for the response. I switched the wires on the old one before I took it out and it acted erratically either way so I figured no polarity issue. Put the new sensor in and problem solved. Thanks again, Pat
oldnotslow is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Tachometer problem Macke Euro-Diesels 1 11-30-2012 04:13 PM
tachometer problems..... 710_burner 7.3L and 6.9 IDI (Pre 1994) 1 11-29-2007 06:47 PM
Help No Tachometer fordrules 5.9L Cummins 12 Valve (1994-1998.5) 3 10-21-2007 05:01 AM
tachometer question osos57 7.3L and 6.9 IDI (Pre 1994) 0 06-29-2007 06:06 AM
tachometer sensor osos57 7.3L and 6.9 IDI (Pre 1994) 0 06-17-2007 06:43 PM

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome