Kitfox Aircraft Stick and Rudder Stein Air Grove Aircraft TCW Technologies Dynon Avionics AeroLED MGL Avionics Leading Edge Airfoils Desser EarthX Batteries Garmin G3X Touch
Page 1 of 4 1234 LastLast
Results 1 to 10 of 35

Thread: 670 Rotax

  1. #1
    Senior Member
    Join Date
    Apr 2009
    Location
    Chisholm Mn
    Posts
    1,562

    Default 670 Rotax

    Just wondering what people who have installed a 670 think of them after being in service for a while. Any comments? Would you do it again? How long have you been using one, ect, ect? JImChuk

  2. #2
    Senior Member Esser's Avatar
    Join Date
    Jul 2011
    Location
    Edmonton, AB
    Posts
    2,048

    Default Re: 670 Rotax

    My friend has one in his 701. I think it’s an awesome engine. I have no real insight except he loves it and would do it again.
    ------------------
    Josh Esser
    Flying SS7
    Rotax 914iS
    AirMaster Prop

    Edmonton, AB, CWL3

  3. #3
    Senior Member
    Join Date
    Apr 2009
    Location
    Chisholm Mn
    Posts
    1,562

    Default Re: 670 Rotax

    Thanks Josh, anyone else? JImChuk

  4. #4
    nlappos's Avatar
    Join Date
    Jan 2015
    Location
    Guilford
    Posts
    17

    Default Re: 670 Rotax

    Jim,
    I just bought a 670 from Ron Davis, it is in a box on the way to my hangar. It looks great, I will be sure and post the experience. I expect that by end of Feb I'll be in the air.
    Nick

  5. #5
    Super Moderator Av8r3400's Avatar
    Join Date
    Jan 2009
    Location
    Merrill, WI
    Posts
    3,044

    Default Re: 670 Rotax

    I've known three people to install 670s. Two of the planes have been sold with one pilot no longer flying. The other purchased a 912 powered plane. The third example was finally converted to a 912 after several engine-outs and is still being flown. Two of these engines came from the famous "Rotax" guy in Florida.

    All three would say the power and performance was extremely impressive when they were running right. To get them to run right in an aircraft takes almost constant tinkering and adjusting. The engines were very temperamental and high maintenance. If you don't mind this aspect of the engine, go for it.
    Av8r3400
    Kitfox Model IV
    The Mangy Fox
    912UL 105hp Zipper
    YouTube Videos

  6. #6
    nlappos's Avatar
    Join Date
    Jan 2015
    Location
    Guilford
    Posts
    17

    Default Re: 670 Rotax

    Well, I am committed now. I'll let you know how it goes. Did they tell you what needed tinkering?

  7. #7

    Join Date
    Oct 2013
    Location
    Netherlands
    Posts
    36

    Default Re: 670 Rotax

    The 670 does not have double ignition does it?

  8. #8
    Senior Member Dusty's Avatar
    Join Date
    Dec 2012
    Location
    Christchurch, New Zealand
    Posts
    378

    Default Re: 670 Rotax

    A dual ignition is an easy fit on an early 670

  9. #9
    Super Moderator Av8r3400's Avatar
    Join Date
    Jan 2009
    Location
    Merrill, WI
    Posts
    3,044

    Default Re: 670 Rotax

    Quote Originally Posted by nlappos View Post
    Well, I am committed now. I'll let you know how it goes. Did they tell you what needed tinkering?
    I'm not a 2-stroke guy, but what I can remember is that the carbs were in a constant state of change, needles, jets, I don't know what else. There was a lot of maintenance in regard to the RAVE valves. Cleaning, adjusting and such. The one guy who had his the longest seemed to have the head off his engine several times a year to de-carbon or re-gasket. Everyone also always had several sets of spark plugs available as well as a full kit of carb parts to change.
    Av8r3400
    Kitfox Model IV
    The Mangy Fox
    912UL 105hp Zipper
    YouTube Videos

  10. #10
    nlappos's Avatar
    Join Date
    Jan 2015
    Location
    Guilford
    Posts
    17

    Default Re: 670 Rotax

    Well, I am about to find out!

    Yes, it is a dual ignition engine, uses the Ducati

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •