Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

No hole for tach sensor after trans swap

Discussion in 'Peterbilt Forum' started by TWC, Jan 28, 2016.

Page 1 of 2
  1. Jan 28, 2016 #1
    TWC

    TWC Bobtail Member

    15
    2
    Mar 18, 2014
    0
    I just got a 1997 379 with an n14. Previous owner swapped out a broke 18 speed for an older 15 speed with lo-lo. I noticed the tach wasn't working and found no sensor on bellhousing nor a hole for it. What can I do to have a functional tach again?
     
    TWC, Jan 28, 2016
    TWC, Jan 28, 2016
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Jan 28, 2016 #2
    baha

    baha Road Train Member

    4,137
    2,834
    Jul 25, 2013
    ga
    0
    Look all around for the hole it may be on side or top, if its so old of a trans that it did not have the hole you can drill one an install the old one out old trans?
     
    baha, Jan 28, 2016
    baha, Jan 28, 2016
    #2
  4. Jan 28, 2016 #3
    TWC

    TWC Bobtail Member

    15
    2
    Mar 18, 2014
    0
    I will look on the side in the morning. I can drill and tap a hole. That's not a problem. Just not sure where exactly to put it.

    Thanks
     
    TWC, Jan 28, 2016
    TWC, Jan 28, 2016
    #3
    baha Thanks this.
  5. Jan 29, 2016 #4
    AModelCat

    AModelCat Road Train Member

    27,734
    145,350
    Jul 7, 2015
    Canuckistan
    0
    Shouldn't the speed sensor for the tach be in the engine flywheel housing, not the transmission bell housing?
     
    AModelCat, Jan 29, 2016
    AModelCat, Jan 29, 2016
    #4
    wadamc, GrapeApe and wore out Thank this.
  7. Jan 29, 2016 #5
    TWC

    TWC Bobtail Member

    15
    2
    Mar 18, 2014
    0
    Is it on the block? I thought it was on the bellhousing?
     
    TWC, Jan 29, 2016
    TWC, Jan 29, 2016
    #5
  8. Jan 29, 2016 #6
    wore out

    wore out Numbered Classic

    14,343
    173,984
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    No northern mechanic is ridgt if they just swapped out the trans then tach pick up shouldn't be affected. It reads off the flywheel teeth.
     
    wore out, Jan 29, 2016
    wore out, Jan 29, 2016
    #6
  9. Jan 29, 2016 #7
    TWC

    TWC Bobtail Member

    15
    2
    Mar 18, 2014
    0
    Okay I'm about to go out there and do some work on the truck anyway so I'm going to look it over a real good again and check
     
    TWC, Jan 29, 2016
    TWC, Jan 29, 2016
    #7
  10. Jan 29, 2016 #8
    wore out

    wore out Numbered Classic

    14,343
    173,984
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    Sometimes there is a plastic plug screwed in the hole
     
    wore out, Jan 29, 2016
    wore out, Jan 29, 2016
    #8
    AModelCat Thanks this.
  11. Jan 29, 2016 #9
    TWC

    TWC Bobtail Member

    15
    2
    Mar 18, 2014
    0
    Would it be at the bottom? There are two large threaded holes at the bottom, one straight down and one off to the passenger side at an angle? These are both about the same size as the speedo sensor on the rear transmission
     
    TWC, Jan 29, 2016
    TWC, Jan 29, 2016
    #9
  12. Jan 29, 2016 #10
    wore out

    wore out Numbered Classic

    14,343
    173,984
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    The one off to passenger side
     
    wore out, Jan 29, 2016
    wore out, Jan 29, 2016
    #10
    wadamc and AModelCat Thank this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

    • Page 1 of 2