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Thread: time for new starter

  1. #1
    Guest
    Guest

    time for new starter

    I think its time for a new starter, went to fly yesterday and starter would spin but not turn over the engine. Took off cowling and lubed bendex? still would not catch. On the final try it caught and barely turned the engine prop over but it did finally start. Alt was charging but no more than norma. Shut it down after a few minutes to try starter again and would not catch. So no flight. Its done this before.
    Question? Those that have put on the sky-tech starters, any problems? How do you like it? The thought of taking 8-10 lbs off the front of this nose heavy plane (75 Sundowner) is appealing. Any thoughts? Where to Buy?
    Thanks for any input Rich



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  2. #2
    Guest
    Guest

    time for new starter

    We've had a SkyTec for over 2 years. It a great device, works fine and
    weights about 6lbs less. As many haves said before, you could almost
    taxi on it.
    --
    Joel M. Levine
    EAA Chapter 690 - AOPA - WA4HNL
    Beechcraft N5997S
    jlevine@bellsouth.net


    [Non-text portions of this message have been removed]



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  3. #3

    time for new starter

    >I think its time for a new starter, went to fly yesterday and starter
    would spin but not >turn over the engine. Took off cowling and lubed
    bendex? still would not catch. On >the final try it caught and barely
    turned the engine prop over but it did finally start.

    >Question? Those that have put on the sky-tech starters, any problems? How
    >do you like it? The thought of taking 8-10 lbs off the front of this nose
    >heavy plane (75 Sundowner) is appealing. Any thoughts? Where to Buy?

    For those with the O-320 and O-360 engines (not the IO-360), you want a
    149LSxx starter, where "xx" is your voltage -- either 12 or 24.

    The IO-360's have a vibration that is known to make the LS series
    integrated solenoid "buzz" and fret the housing internally, and eventually
    jam the solenoid plunger with fretted metal particles. For those with the
    IO-360's, the starter of choice would be the NL or HT series, which have
    different solenoid configurations and don't seem to be subject to the
    fretting problem that the LS series has on IO-360's.

    The only failure issues I have seen with the Sky-Tec LS series other than
    the fretting issue above, are cracked housings from kickback, as a result
    of starting with the Right mag enabled. Most planes won't have this as an
    issue, because the starter is actuated through the Bendix Key-start switch,
    which automatically grounds the right mag during cranking. Those that
    might have a separate starter button (aftermarket?) and don't crank with
    the switch in the "L" position can cause a kickback because the faster
    spinning of the Sky-Tec starters MAY allow the right mag, under just the
    right conditions, to fire the sparkplugs when the piston hasn't reached TDC
    (25 BTDC is the fixed timing of the mags), and drive the piston back down
    the cylinder, jamming the starter/ring gear and damaging the starter and
    possibly the flywheel.

    Les Staples, a partner in Sky-Tec is a friend of mine. (In the spirit of
    Full Disclosure.) He gets a very limited number of warranty exchange
    starters in, and after they are OH, he can't sell them as new. However he
    does sell them with the same warranty as new, at a discount. Contact me
    off list if you'd like to obtain a Sky-Tec LS series starter at a
    substantial discount.

    Bob Steward, A&P IA
    Birmingham, AL



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  4. #4

    Re: time for new starter

    We installed a SkyTec last year into our Sport and the starter spins the engine real fast. But now we seem to have a hard starting problem because of the faster cranking speed.

    Basically, the engine will not start if it spins too fast, e.g., it starts easier without preheat, or starts only after releasing the key from the start position while the engine speed slows down.

    The sacskyranch site indicates that the mag impulse couplings need to be matched to cranking speed, but skytec disagrees with this. My mechanic has never run into this before and says the timing is correct. I don't know what to think about this, but only know that the engine is harder starting with the skytec, even though its spins very fast.

    I wonder if any of the mechanics have any input to this because I'm getting conflicting information from a number of sources on this.

  5. #5
    I thought I had seen something about starting when the key was released from the start position...I have that sometimes also. But now I can't seem to find it. It pointed to a specific issue if I recall correctly. Can anyone point us in the right direction? I went Sky-tech 14 months ago and have been very satisfied.
    Charlie Baumann
    Sport MB-729, N6578R
    Zuehl Field, near San Antonio

  6. #6

    time for new starter

    --- In musketeermail@yahoogroups.com, Bob Steward <n76lima@...> wrote:
    >
    > IO-360's, the starter of choice would be the NL or HT series, which

    *** I got an NL for my O-360. After researching the starters in detail I decided on this one because its current requirement is quite a bit lower than the LS.

    LS: 185-285A
    NL: 125-185A

    I felt this was important because it's a long string out to the battery in the tail.

    It's a magnificent starter. I never saw an electric motor crank a propellor so fast.

    If anything, it's TOO fast. The engine often will not catch until the moment I let go of the starter. I think this is because the mag impulse coupling is "calibrated" to the original slow starter.

    - Jerry Kaidor




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  7. #7
    Installed a skytech starter in 1994 on a 1975 Sierra and its great! Engine turns over faster and the battery last 1-2 years longer. Well worth the money! Look at Trade-A-Plane for sources. The original starter is a Chrysler automotive starter.

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