fbpx
Login

 

Jump to Forum..

912 uls Blew out coolant

in 912 / 914 Technical Questions 6 years ago

  • Re: 912 uls Blew out coolant

    by » 6 years ago

    I don’t know how old the engine is, but it may have a .9 bar cap. This was replaced years ago to a 1.2 bar cap. About 18 psi and like others stated it may just need a new cap.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

      
    Report

  • Re: 912 uls Blew out coolant

    by » 6 years ago

    Thanks Roger
    On My other issue .Left side ignition drops more RPM than the right and triggers my tach to blink. I am starting with plugs 1 and 2 top then I will do the bottom 3 and 4. If that doesn't work go to caps and wires?
    The plane is about a 2003-04 Most likely everything but the plugs are original.
      
    Report

  • Re: 912 uls Blew out coolant

    by » 6 years ago

    Rpm drop by how much and at what rpm?

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

      
    Report

  • Re: 912 uls Blew out coolant

    by » 6 years ago

    Left side drops about 200 and the right about 80 at 3800. They were pretty even then I replaced the tach with a digital one and it starts blinking if the rpm varies more than 120 . I don't exactly how it works but it starts blinking several times during a flight and just reset it.
    I started with replacing 2 plugs on 1 and 2 top did not solve it so I will change 3 and 4 bottom next.
      
    Report

  • Re: 912 uls Blew out coolant

    by » 6 years ago

    I had an unstable tach readout on my Dynon EFIS. I put in a 20K ohm resistor in the tach wire as recommended by Dynon and the problem went completely away.
      
    Report
You do not have permissions to reply to this topic.
Related Topics
Title Category Replies
912is rpm drop 912iS Technical Questions 28
RPM Drop in 912ULS 912 / 914 Technical Questions 3
RPM Drop in 912ULS 912 / 914 Technical Questions 21
Rv-12iS High EGT and Coolant temps 912iS Technical Questions 3
Torque 912 ULS 912 / 914 Technical Questions 7
Follow Us

Recent Videos

Safety First!

 

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

Prize Giveaway!


SUBSCRIBE NOW
to automatically enter this years draw!

Login