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
⌃

High Rpm....low speeds

Discussion in 'Ask An Owner Operator' started by trucky909, Sep 20, 2020.

Page 5 of 11
  1. Sep 20, 2020 #41
    lester

    lester Midwest's #1 Feed Hauler

    2,817
    7,478
    Jan 2, 2012
    NW, Iowa
    0
    What is the problem with the transmission now and how is it not related to this rpm/speed problem
     
    lester, Sep 20, 2020
    lester, Sep 20, 2020
    #41
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Sep 20, 2020 #42
    lester

    lester Midwest's #1 Feed Hauler

    2,817
    7,478
    Jan 2, 2012
    NW, Iowa
    0
    Seems to me like you are shifting wrong or something is wrong in the transmission and its not shifting properly. Think you need to find a better mechanic too
     
    lester, Sep 20, 2020
    lester, Sep 20, 2020
    #42
  4. Sep 20, 2020 #43
    jamespmack

    jamespmack Road Train Member

    19,157
    207,365
    Mar 25, 2014
    OH
    0
    You need a clutch, period and a proper grind on flywheel.

    Moving on.
     
    jamespmack, Sep 20, 2020
    jamespmack, Sep 20, 2020
    #43
    Rideandrepair, Long FLD, D.Tibbitt and 2 others Thank this.
  5. Sep 20, 2020 #44
    God prefers Diesels

    God prefers Diesels Road Train Member

    4,198
    22,246
    Jun 26, 2020
    South Texas
    0
    Same tranny and gears as me, except I have 24.5's. I'll write down my speed at 1500 RPM in each gear tomorrow and you can compare it.
     
    God prefers Diesels, Sep 20, 2020
    God prefers Diesels, Sep 20, 2020
    #44
    Rideandrepair and singlescrewshaker Thank this.
  7. Sep 20, 2020 #45
    trucky909

    trucky909 Light Load Member

    130
    33
    Jul 4, 2014
    0
    I hope your right
    So what type of clutch wou
    Ok
     
    trucky909, Sep 20, 2020
    trucky909, Sep 20, 2020
    #45
  8. Sep 21, 2020 #46
    Ridgeline

    Ridgeline Road Train Member

    20,729
    100,988
    Dec 18, 2011
    Michigan
    0
    How a clutch would cause this under a light load is beyond me.

    I am thinking if this is the same trans the mechanic swapped out, it could be an 11 speed with a deep reduction unit and it is stuck in the reduction. These trans have an additional “switch” to take it in and out of a reduction which 10 speed trannys don’t have. In addition to that a few 11 speeds used in off road applications had large gaps or wide ratios, the reason why there is a 55% gap between 6 and 7 gear.
     
    Ridgeline, Sep 21, 2020
    Ridgeline, Sep 21, 2020
    #46
    650cat425 and God prefers Diesels Thank this.
  9. Sep 22, 2020 #47
    lester

    lester Midwest's #1 Feed Hauler

    2,817
    7,478
    Jan 2, 2012
    NW, Iowa
    0
    So what's the word?
     
    lester, Sep 22, 2020
    lester, Sep 22, 2020
    #47
    AModelCat and 650cat425 Thank this.
  10. Sep 25, 2020 #48
    trucky909

    trucky909 Light Load Member

    130
    33
    Jul 4, 2014
    0
    Spent $4k getting whole clutch system and tail bend of the transmission done. Driving the same. The picture I attached is me in 7th gear. Look at the rpm already for that speed, in that gear.

    That means I'll be in 8th gear under 30 mph already.

    I have no clue at this point.
     

    Attached Files:

    trucky909, Sep 25, 2020
    trucky909, Sep 25, 2020
    #48
  11. Sep 25, 2020 #49
    trucky909

    trucky909 Light Load Member

    130
    33
    Jul 4, 2014
    0
    $4k on a new clutch and everything that has to do with a clutch.... and tail end work on the transmission.

    The picture is me bobtailing today on flat surface. I am peaking in 7th gear/1500rpm....which means I'll probably be in 8th gear at 25 mph. Basically there's only a 5 mph increase in speed in gears 6th and 7th from 1000 rpm to 1500 rpm. In gears 8th thru 9th....theres a 10mph increase from 1000 rpm to 1500 rpm.

    Whole new clutch system replaced....still drives the same. I have no clue at this point.

    In this picture....again....I went from 6th gear at 15mph...to 18/20 mph @1500 rpm into 7th.... So I was in 7th gear already at 18/20mph.

    I went from 20mph in 7th @ 1000 rpm to 25mph @1500 rpm.

    I have no clue at this point.....but it's not the clutch.
     

    Attached Files:

    Last edited: Sep 25, 2020
    trucky909, Sep 25, 2020
    trucky909, Sep 25, 2020
    #49
  12. Sep 25, 2020 #50
    lester

    lester Midwest's #1 Feed Hauler

    2,817
    7,478
    Jan 2, 2012
    NW, Iowa
    0
    Is this a new issue? Or new to you truck thats always done it? Was anything else changed? Give us all the details. What does the shop that did the work have to say about it? Was there anything wrong with the clutch? What was the issue with the transmission?
     
    lester, Sep 25, 2020
    lester, Sep 25, 2020
    #50
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

    • Page 5 of 11