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Thread: Is a coil swap possible?

  1. 06-09-2012, 08:37 PM #1
    67L36Driver
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    Is a coil swap possible?

    The magneto is a Bendix on a Remington GL-7. The coil is a hopeless mess. I have been pealing back the layers trying to find a place to solder on a new connection for the spark plug wire. The wire (.003" dia.) is brittle and breaks before I can even get it tinned.

    The laminated pole piece measures 3/8" square. I have a Wico coil off a later Remington that will fit on the pole piece. The outside insulation is a little larger on the Wico coil.

    Both coils have the usual three connections. Lead to the points, ground wire and spark plug wire.

    Would the Wico coil work on the Bendix, provided I have enuff room on the magneto plate?
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  2. 06-10-2012, 04:00 AM #2
    igpoe
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    The short answer to your question is: YES. But a coil is available on Ebay. The same coil fits a Disston-Mercury DA-211 or a Mall 7H and many other Malls and Remingtons.
    Igpoe
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  3. 06-10-2012, 05:01 AM #3
    67L36Driver
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    Quote Originally Posted by igpoe View Post
    The short answer to your question is: YES. But a coil is available on Ebay. The same coil fits a Disston-Mercury DA-211 or a Mall 7H and many other Malls and Remingtons.
    Igpoe
    Thanks bud.

    What did you use in the search. I have been haunting evilbay using 'Remington, Bendix, Mall and Scintilla' with no meaningfull results (except for airplane magnetos.....Yikes!).

    Carl.
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  4. 06-10-2012, 05:13 AM #4
    igpoe
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    MERCURY DISSTON MALL TITAN MAGNETO CHAINSAW COIL DA211 | eBay
    Bryce will also sell them one at the time.
    Igpoe
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  5. 06-10-2012, 07:35 AM #5
    67L36Driver
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    Quote Originally Posted by igpoe View Post
    MERCURY DISSTON MALL TITAN MAGNETO CHAINSAW COIL DA211 | eBay
    Bryce will also sell them one at the time.
    Igpoe
    Looks like a good fall back move. Can't tell if the points and ground would be the same.




    What it looks like after I chased the end of the tiny wire. The Wico Remy/Pioneer/Lombard and Homie coils are shown next to it. Homie coil is far left.




    Wico coil in position it would occupy. May be too fat to fit.



    I'll strip the old Bendix coil off the laminated pole piece and try it for size. Not loosing much at this juncture.

    I did manage to save the coil on my Pro 88. (first picture)
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  6. 06-10-2012, 11:01 AM #6
    Eccentric
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    Carl your pics in your last post didn't work for me...
    -Aaron

    Quote Originally Posted by RandyMac View Post
    Why wear a speedo when you could go naked?

    Don't tune old saws with a tach!
    Tune the H side so that it burbles (four strokes) at WOT unloaded and just cleans up when under load. When you lift cutting pressure, the saw should revert to four stroking.


    --John 3:16--
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  7. 06-10-2012, 01:19 PM #7
    67L36Driver
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    Prototype of setup.

    The insulation guts from the coil extruded out the opposite end as I pressed in the laminated pole piece. The coil itself just barely fits in place, but, it fits. Points lead and ground are on the 'wrong' end but the plug wire is in an excellent place for a firm connection.

    Replacement coil 002 (Small).jpg



    Now to file and sand the pole for some clearence on our next attempt.

    Aaron:My Windows did an 'update' a few days ago. Lord know what that screwed up.

    Hit reply w/quote and see if the link is there.

    Carl.
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  8. 06-10-2012, 01:21 PM #8
    67L36Driver
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    Links (I hope).

    Bendix coil 002 (Small).jpg
    Bendix coil 001 (Small).jpg
    88 mag plate 001 (Small).jpg
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  9. 06-10-2012, 01:53 PM #9
    w8ye
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  10. 06-15-2012, 07:37 AM #10
    67L36Driver
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    holy chit it works!!

    Got back around to this experiment as the spark on my Pro 88 was too weak to get him to start a second time.

    I just cobbled the connections together enuff so they would fit under the flywheel on the GL-7 and even left the plug wire 4 ft. long.

    Got a fat blue spark on first pull.

    I'm jumpin' thru me arse.
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  11. 06-15-2012, 11:03 AM #11
    Eccentric
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    Quote Originally Posted by 67L36Driver View Post
    Got back around to this experiment as the spark on my Pro 88 was too weak to get him to start a second time.

    I just cobbled the connections together enuff so they would fit under the flywheel on the GL-7 and even left the plug wire 4 ft. long.

    Got a fat blue spark on first pull.

    I'm jumpin' thru me arse.
    That's quite a visual Carl.
    -Aaron

    Quote Originally Posted by RandyMac View Post
    Why wear a speedo when you could go naked?

    Don't tune old saws with a tach!
    Tune the H side so that it burbles (four strokes) at WOT unloaded and just cleans up when under load. When you lift cutting pressure, the saw should revert to four stroking.


    --John 3:16--
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  12. 06-15-2012, 08:41 PM #12
    67L36Driver
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    Correction to above post:

    The square-ish Wico coil with a 3/8" square bore above is from a Homelite XL-101. The rounder coil with the 3/8" x 1/2" bore is a Phelon from a Remington PL-5.

    The Wico coil works/fits best.

    I've got too many odds and ends laying around.
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  13. 06-15-2012, 10:54 PM #13
    Justsaws
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    Well done, excellent work around now that you've done the hard work for us. Thanks for the effort.
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  14. 06-16-2012, 12:31 AM #14
    Bill G
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    Hats off for the dedicated work you did. Ingenuity is a lost art today.

    Bill
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  15. 06-16-2012, 06:52 AM #15
    igpoe
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    "I'm jumpin' thru me arse."
    Sounds like something PPE was not designed to protect you from!
    Igpoe
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