fbpx
Login

 

Jump to Forum..

Engine attach bolts - torque

in 912 / 914 Technical Questions 10 years ago
Can anyone advise what the torque settings are for the 10mm engine attach bolts. I can't see any reference in my manual.
Thanks.

  • Re: Engine attach bolts - torque

    by » 10 years ago

    Probably HM 00-00-00 10.2
    In general, all screw connections on ROTAX engines must be tightened using a torque wrench.
    If not specified otherwise for a component, tighten screw connections to the following torque:
    M4 : 4 Nm (35 in.lb)
    M5 : 6 Nm (55 in.lb)
    M6 : 10 Nm (90 in.lb)
    M8 : 24 Nm (17.7 ft.lb) M10 : 35 Nm (25.8 ft.lb)
    ■ CAUTION: If not specified otherwise, the threads are not lubricated when fastened.
    ◆ NOTE: Adhere to the tightening torques specified see also indications in the Illustrated Parts Catalog.
    Thank you said by: Chris O'Donnell
      
    Report

  • Re: Engine attach bolts - torque

    by » 10 years ago

    Hi Chris,
    this is a airframe torque as Rotax does no know what you are attaching the bolt to, or how long a bolt you are using. Some bolts go through rubber mounts and others go through steel plates so you can see how many variables there are.
    I bet you aircraft manufacturer has the correct torque for your application.
    Thank you said by: Chris O'Donnell
      
    Report

  • Re: Engine attach bolts - torque

    by » 10 years ago

    Thanks Przemyslaw and Rob.

    Chris
      
    Report

  • Re: Engine attach bolts - torque

    by » 4 years ago

    You might be referring to the 10m engine block attach bolts?  

    If so - exercise extreme caution with torque value charts.  Those charts expect steel nuts and are NOT for a screw going into an aluminum block.  The torque for the four 10m block bolts should be in the maintenance manual and it should be a LOT lower than the torque value published for a 10m bolt/nut combination.   If you strip the block, then you get to learn about heli-coils.   I'm going to look at my maintenance manual later - won't guess here.

     

     

    Thank you said by: RotaxOwner Admin
      
    Report
You do not have permissions to reply to this topic.
Related Topics
Title Category Replies
My engines' manufacturing date 912 / 914 Technical Questions 0
Engine start issues 912 / 914 Technical Questions 13
One engine using too much fuel 912 / 914 Technical Questions 7
MGL engine monitoring system 912 / 914 Technical Questions 1
Engine preservation General Tech Discussion 2
Follow Us

Recent Videos

Safety First!

 

To receive critical-to-safety information on your ROTAX Engine, please subscribe to
ROTAX-OWNER.COM

ROTALK News



ROTALK NEWS Episode 5
Rotax-powered Sling aircraft from The Aircraft Factory, the AVMAP Navigation and engine monitoring system, and the Rotax powered Tucano Experimental and Light-Sport Aircraft.



ROTALK NEWS Episode 4
ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) and ROTAX factory in Gunskirchen, Austria.


ROTALK NEWS Episode 3
Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations.

Prize Giveaway!


SUBSCRIBE NOW
to automatically enter this years draw!

Login