10EE Quadrant Box Gasket?
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  1. #1
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    Default 10EE Quadrant Box Gasket?

    I am finishing final assembly of my 10EE and...... Went to bolt the quadrant box to the QCGB and have a clearance issue; the slider gear that selects thread vs. feed input to the QCGB does not want to engage the thread input gear of the quadrant box and does slightly engage the gear train when in the feed position. When I shimmed the quadrant box to sit 40 thousandths higher the gear train meshes nicely.

    I assume there was a gasket between the quadrant box and the QCGB because I cannot find any shim material/washers in my excess parts bins.

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    Quote Originally Posted by gernoff View Post
    I am finishing final assembly of my 10EE and...... Went to bolt the quadrant box to the QCGB and have a clearance issue; the slider gear that selects thread vs. feed input to the QCGB does not want to engage the thread input gear of the quadrant box and does slightly engage the gear train when in the feed position. When I shimmed the quadrant box to sit 40 thousandths higher the gear train meshes nicely.

    I assume there was a gasket between the quadrant box and the QCGB because I cannot find any shim material/washers in my excess parts bins.
    CAVEAT: This is from the Monarch-supplied manual specific to 1942 "Round Dial", piggyback-exciter SN 17120. Your S/N "might" have a different manual, may own such a creature as a "Quadrant box" where mine does not, but I don't think it would affect gasketing - if we are even talking about the same assembly.

    "Quadrant", Item #1, End Gearing, Parts Picture E3? No gaskets in list or on picture. It wasn't even a covered area, my one. later 10EE did have a cover, but there is no threading/feeding selection going on in that area.

    Gearbox, Parts Picture E4, has no gaskets in parts list or picture except for item 149, the Oil Gage Housing gasket (AKA "sight glass" to civilians).

    OTOH it has a LOT of spacers, bushing, washers, retaining rings in the 154 listed items.

    Seems as if one or more of those has gone walkabout, bass-ackwards, or swapped in position and your axial positioning is off. Probably by more than 40 thou, too.

    There should be more leeway than 40 thou, just as a matter of ease of production design, cumulative parts tolerances, and expectation of wear.

  3. #3
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    Did you get your coil fixed ?

    Sent you a PM.



    Hal

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    Do you mean this gasket? It is 0.030 thick, My WIAD parts diagram shows it.
    Attached Thumbnails Attached Thumbnails img_0705.jpg   img_0706.jpg  

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    Quote Originally Posted by bll230 View Post
    Do you mean this gasket? It is 0.030 thick, My WIAD parts diagram shows it.
    WiaD? Square-dial machine. Different gearbox altogether.

    Eric's is an MG Round Dial. Unless he now has two.

    And mebbe so, even then. Both of mine are.


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    I'm MG square dial. Yeah that'd be the gasket in question. I've built one and will get the quadrant box mounted to the QCGB tomorrow.

    Sent from my SM-N900V using Tapatalk

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    Quote Originally Posted by gernoff View Post
    I'm MG square dial. Yeah that'd be the gasket in question. I've built one and will get the quadrant box mounted to the QCGB tomorrow.

    Sent from my SM-N900V using Tapatalk
    LOL! Well .. stone ME for blind as bat on the old photos.. moughta been the paint.

    OT. Didn't see a "sold" show up on that Moore chair. Still have it?

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    Got some Felpro gasket mat'l and mounted the quadrant box. The mesh with the QCGB input gear is good. All that's left is to find and install the headstock output gear and verify it's mesh with the quadrant gears.

    Sold the Moore edge finder.

    Sent from my SM-N900V using Tapatalk

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    I sent you another PM

    Hal


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