98 12v tach - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by deck60, this thread has received 12 replies and been viewed 8657 times.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old 04-07-2012, 05:28 AM Thread Starter
Junior Member
 
deck60's Avatar
 
Join Date: Apr 2012
Posts: 27
Points: 10,447
Thanks: 0
Thanked 0 Times in 0 Posts
98 12v tach

hi all I am new here

99 f 350 w 98 12v

98 12v the tach sensor on the front by crankshaft can this be used or do you have to use the cam sensor off a ford

I have not tried mine yet have it temp wired

blk grnd
red 12v switched hot
yellow tach input

this is how I have it wired do you think it will work

99 f350 crew srw 4x4 -- 98 12v nv4500 np 273 made into a manual shift
deck60 is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 04-07-2012, 08:37 PM
ADMIN/MAFIA
 
neeltburn's Avatar
 
Join Date: Dec 2008
Location: Evansville, IN
Posts: 4,834
Points: 56,490
Thanks: 302
Thanked 691 Times in 599 Posts
Garage
I beleive Destroked has everything you need to make the tach work.

"Only accurate rifles are interesting" -Townsend Whelen

2012 Ram 2500 Crew Cab Big Horn
6.7L 68RFE 4wd
Yeah its stock.
Edge Insight CTS / Line-X / Access Bed Cover
B&W Turnover Ball / Companion Hitch
Pac Brake Air Bags
On Board Air
Optima Redtop 34Rs


2010 John Deere 2305
2010 Jeep Wrangler JK Unlimited Rubicon/ Tuned with some toys.
2016 Keystone Impact 311 Toyhauler






9-11-2001 NEVER FORGET
neeltburn is offline  
post #3 of 13 (permalink) Old 04-07-2012, 08:48 PM Thread Starter
Junior Member
Threadstarter
 
deck60's Avatar
 
Join Date: Apr 2012
Posts: 27
Points: 10,447
Thanks: 0
Thanked 0 Times in 0 Posts
I am sure they do and ford cummins does also but then that would take all the challenge out finding out if I can use the original dodge/cummins tach sensor

if that doesn't work I can I know I can use the cam sensor off the ford

thanks for the reply

99 f350 crew srw 4x4 -- 98 12v nv4500 np 273 made into a manual shift
deck60 is offline  
post #4 of 13 (permalink) Old 04-16-2012, 05:38 PM
Junior Member
 
04lariatfx4crewcab's Avatar
 
Join Date: May 2009
Location: Guadalupe River State Park, Texas
Posts: 373
Points: 36,440
Thanks: 75
Thanked 19 Times in 17 Posts
I think it has to do with the number of pulses. I think my 6.0l is looking for 60 or 60-1 or something like that, so I got the tach ring to match from GOS. Your 99 was that gas or a 7.3l? I think the Cummins is only a single pulse. or single gap, IIRC, it has been a few months since I messed with my tach.

Jakob

2004 5.9L/47rh Lariat FX4 Crew Cab Short bed. 213K miles 18" dbacks with nitto A/T grapplers, Zoodad mod, and 2000 turn signal mod. Limited Excursion bumpers front and back. Chrome grill, EGR delete, FICM delete, glow plug delete, HPOP delete, 2 cylinders delete, and 20 valves deleted

97 12v/47rh built by Garmon's



04lariatfx4crewcab is offline  
post #5 of 13 (permalink) Old 04-18-2012, 03:22 PM Thread Starter
Junior Member
Threadstarter
 
deck60's Avatar
 
Join Date: Apr 2012
Posts: 27
Points: 10,447
Thanks: 0
Thanked 0 Times in 0 Posts
trying to get my tach working

I am not going to go to destroke or ford cummins half the fun of doing a conversion is figuring it out

I tied the dodge setup didn't work

so I did the ford setup with the cam sensor take #85 the cam sensor wire and the #48 wire the tach wire and wire them together before pcm

wondering it I might have the sensor to close to the harmonic about .030

I ground in the 2 extra notches so I have 4

I tested wire from sensor to the pcm block I haven't tested the other to the tach yet

99 f350 crew srw 4x4 -- 98 12v nv4500 np 273 made into a manual shift
deck60 is offline  
post #6 of 13 (permalink) Old 04-18-2012, 04:29 PM
Junior Member
 
04lariatfx4crewcab's Avatar
 
Join Date: May 2009
Location: Guadalupe River State Park, Texas
Posts: 373
Points: 36,440
Thanks: 75
Thanked 19 Times in 17 Posts
You have to keep the cam sensor and the crank sensor wires seperated until you get to the sensor then wire them together if you run them together they will pick up signals from each other and cause problems, the shielding on the wires is crap, I think you can wrap one in aluminum foil but that is a pain and doesn't look very good.

Jakob

2004 5.9L/47rh Lariat FX4 Crew Cab Short bed. 213K miles 18" dbacks with nitto A/T grapplers, Zoodad mod, and 2000 turn signal mod. Limited Excursion bumpers front and back. Chrome grill, EGR delete, FICM delete, glow plug delete, HPOP delete, 2 cylinders delete, and 20 valves deleted

97 12v/47rh built by Garmon's



04lariatfx4crewcab is offline  
post #7 of 13 (permalink) Old 04-18-2012, 04:52 PM Thread Starter
Junior Member
Threadstarter
 
deck60's Avatar
 
Join Date: Apr 2012
Posts: 27
Points: 10,447
Thanks: 0
Thanked 0 Times in 0 Posts
I have been running right off the plug just the cam wire do i need both cam and crank sensor wires and then tie them together at the sensor

99 f350 crew srw 4x4 -- 98 12v nv4500 np 273 made into a manual shift
deck60 is offline  
post #8 of 13 (permalink) Old 04-18-2012, 07:37 PM
Junior Member
 
04lariatfx4crewcab's Avatar
 
Join Date: May 2009
Location: Guadalupe River State Park, Texas
Posts: 373
Points: 36,440
Thanks: 75
Thanked 19 Times in 17 Posts
I think if you have a common rail you can just use the crankshaft sensor for tach but I think there is still a cam sensor signal from somewhere. I never tried it with just the crank sensor, but mine seems to be working very well with both. How do you know your computer is looking for 4 pulses? the V-10 looks for 40-1 and the 6.0 is looking for 60-2 yours could be looking for 12 pulses it depends on what motor you had to start with.

Jakob

2004 5.9L/47rh Lariat FX4 Crew Cab Short bed. 213K miles 18" dbacks with nitto A/T grapplers, Zoodad mod, and 2000 turn signal mod. Limited Excursion bumpers front and back. Chrome grill, EGR delete, FICM delete, glow plug delete, HPOP delete, 2 cylinders delete, and 20 valves deleted

97 12v/47rh built by Garmon's



04lariatfx4crewcab is offline  
post #9 of 13 (permalink) Old 04-19-2012, 02:36 AM Thread Starter
Junior Member
Threadstarter
 
deck60's Avatar
 
Join Date: Apr 2012
Posts: 27
Points: 10,447
Thanks: 0
Thanked 0 Times in 0 Posts
I have a 12v the 4 pulses is for 99-2002 I have been told

99 f350 crew srw 4x4 -- 98 12v nv4500 np 273 made into a manual shift
deck60 is offline  
post #10 of 13 (permalink) Old 04-19-2012, 03:01 AM
Junior Member
 
hayjayhorses's Avatar
 
Join Date: Dec 2006
Location: Palmer, Massachusetts
Posts: 645
Points: 74,027
Thanks: 3
Thanked 48 Times in 48 Posts
I put a 12 valve in a topkick and I am using the GM alternator, I had to run a smaller pulley on the Alt to speed it up so it is accurate.

Jay Noone
413-222-8286
I got hay
abolish the Federal Reserve, they are the real problem

Vote Ron Paul 2012
hayjayhorses 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
idi tach mrsweattmt 7.3L and 6.9 IDI (Pre 1994) 4 01-02-2011 02:11 PM
Tach ? mikesb Medium and Heavy Duty 1 09-05-2010 07:15 PM
tach is -500 rpm imported_06F450 2003-2007 6.0L Power Stroke 4 11-22-2006 03:18 PM
Want new tach for '05 ctd wintersucks 5.9L Cummins (2003-2007.5) 2 10-15-2006 10:13 PM
want a tach Megaman 5.9L Cummins (Pre 1994) 1 07-09-2006 07:08 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