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  1. #1
    Member
    Join Date
    Jan 2017
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    Michigan
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    Engine to jackplate or setback Torgue spec

    I am going to adjust the engine on my Nitro 901. It has a non-adjustable set back plate. It is set so the engine sets as low as possible. I have to unbolt the engine and adjust using the motor to plate bolt holes. What is the correct torgue specs for tighting the bolts? Thank you inadvance.






  2. Member
    Join Date
    Oct 2016
    Location
    Channahon, Illinois
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    259
    #2
    I am not a mechanic and am just passing along what my mechanic told me so take it for what little it may be worth. I was told typically from 30-55 pounds depending, I assume the "depending" is because he said you do not want to compress the transom he also said make sure the bolts do not turn when loosening or tightening the nuts.


    I misread your question earlier, for that I was told 55 lbs. and check tightness at the start of each season. You may want to ask on a motor forum.
    Last edited by bison2312; 12-03-2017 at 01:23 PM. Reason: I'm an idiot
    2017 Nitro Z21
    2017 250 Pro XS T2 (SN 2B401909)
    Bravo 1XS 26P
    BMS 12" Action Jack
    Ultrex 112# - Solix 12 - 12' Talons

    Club: lunkersunlimited.net

  3. Member
    Join Date
    Feb 2014
    Location
    Fort Ann, NY
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    162
    #3
    I'm pretty sure it's 55 at transom to plate and 90 at motor to plate.

  4. Moderator Fishysam's Avatar
    Join Date
    Oct 2016
    Location
    Jamestown North Dakota
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    9,329
    #4
    i read its 110 to motor setback, i think its 70-80 through transom.
    Mercury 250 proxs 2B115089