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Pulling an engine off the plane.

in General Tech Discussion 10 years ago

  • Re: Pulling an engine off the plane.

    by » 10 years ago

    Hi Jay,

    Sorry I wasn't able to get back to you. I was out of town and just got back.

    read this blog about clamps before you do any hoses.

    http://www.rotax-owner.com/rotax-blog/item/21-rotax-5-year-rubber-replacement-the-installation-considerations

    You can set your engine on a table with some 2x4 wood planks. Don't let the water tubes rest on anything. You can also just let it hang on a lift to just do hoses. This may be a better option so you can get to all the engine , top and bottom.

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

      
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  • Re: Pulling an engine off the plane.

    by » 10 years ago

    The nightmare of replacing the engine mount is nearing an end. I finally got all the hoses, clamps, clamping tools, temp senders, and fire sleeve to do the install.
    I am not convinced the "Band it" clamps and tool are what I hoped for. If there are any leaks, the fix is real challenge to cut the band and not get anything else.

    I couldn't install the engine and adapters into the mounted engine mount, so I took it off the airframe and put the engine mount on the engine. Now I will attempt assembly to the plane. I AM convinced that the guy who invented the Lourd Mount was an atheist!
    DSC_0086.JPG (You do not have access to download this file.)
    DSC_0072.JPG (You do not have access to download this file.)
      
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  • Re: Pulling an engine off the plane.

    by » 10 years ago

    Hi Jay,

    The Band-It clamp is the aircraft standard for fire sleeve. It is easy to remove with a Dremel tool with a cut off disc. Use this method to remove Oetiker clamps too. The Dremel goes right through both and you can be very exact and won't damage anything.

    I do lots of hose changes and this is the only way to go for time and easy.

    p.s.
    Just barely snug the Band-It clamp. It has so much torque you can squeeze the underlying hose and reduce its flow. It only needs be be slightly snug.

    I have seen a few people use the Band-It on the underlying hose, but I don't recommend it. Too many over tighten and cut the hose on the inside. If you have a gentle hand it can be done, but Oetiker clamps are better and easier to use.

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

    Thank you said by: jay white
      
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  • Re: Pulling an engine off the plane.

    by » 10 years ago

    Ok, I"ll try to send this again. the "Band it" clamp was not the solution as they are almost all leaking. I erred on the side of safety and just gave them enough tension to deform the rubber so as to keep from damaging the connections. They are not adjustable so now I have removed the CDI to access the spider topside hoses. I cut off the old Clamp It connections and replaced them with the old style screw in type until I can try the Oideker clamps. I am testing every tool and product and procedure on the forum. wow.
    Then I blew the direct line from the new direct gauge I had installed at the oil pump. Minimal oil loss, maximum oil mess, maximum cussing. The line unseated at the pump and sprayed oil. As I removed it to inspect, I found that the small print on the hose reads "50 PSI"! OOPs. I had asked for a 150 PSI or greater hose. Didn't verify the product and now have a mess. (See much Cussing) I checked the Dynon Website for the oil sensor Roger told me about. There is no picture and I don't think I will buy it until I know it will fit my old system. I can't seem to win with this little motor. I'm still grounded. getting used to it. I am searching Barnstormers for something else.
      
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  • Re: Pulling an engine off the plane.

    by » 10 years ago

    Ok, its finished for now. the ground test was about an hour of start up, shut down, inspect, repeat. The oil hose at the pump is secure and the pulses from the new gauge are wild. I will probably change the ball and spring assembly in the oil pump.
    Still can't get a fix on the original gauge so I am using the modified cockpit. If there was an A&P nearby to sign off the engine mount replacement, I would fly it. It would probably fly smoother than ever with the new prop pitch and the new engine mount. It would feel smooth through all RPM ranges and it would really be neat to use the Mcfarlane throttle!
    It would do about 120 mph indicated and it would land on the grass strip beautifully. But … no A&P. So I'll just "Dream."
    DSC_0004.JPG (You do not have access to download this file.)
      
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