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Thread: Help ID gearbox/bellhousing?

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    Senior Member Jake's Avatar
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    Help ID gearbox/bellhousing?

    Hi,
    I have an old Moss gearbox with a strange bellhousing and tailshaft mounting/extension. I got it from a guy who recently parted with an XK140 project, but I don't think it's 140. Closest I can figure it's from a pre-war Jaguar SS. The center and tailshaft look to be similar to one out of an AC Aceca. Asking mostly out of curiosity, I don't think it's rebuildable. Top two photos are mine, third is Aceca, last is '39 SS chassis.
    If you know what this is, please let me know. Current plan is to make the bellhousing into a flowerpot.
    Thanks,
    Jake








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    Jedi Knight
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    Re: Help ID gearbox/bellhousing?

    Any numbers/letters stamped or case into the case?? Might help identify a casing date or part number.

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    Senior Member Jake's Avatar
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    Re: Help ID gearbox/bellhousing?

    There are, good question!
    These are all right around the starter recess.

    C700-1



    70256



    DA2



    Thanks,
    Jake

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    Yoda TOC's Avatar
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    Re: Help ID gearbox/bellhousing?

    There should be another number on the bell portion, like a C and four numbers.

    That said, not an early 120, as they had an open bottom for clutch changing.
    120 and 140 had manual mechanical clutch, not hydraulic, that one is manual mechanical.
    So if it fits an XK block, 120-140. I think MK1's were hydraulic on all.

    Cannot remember the bigger MK bells.

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    Senior Member Jake's Avatar
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    Re: Help ID gearbox/bellhousing?

    I'll check when I get home. Other than the C700-1 shown above?
    The issue is that the starter recess is in a strange spot, I don't think it'd fit a standard XK block.
    I had a response from another guy who thought maybe a '48 MK IV, I haven't been able to find any detailed pictures to confirm.
    Thanks,
    Jake

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    Re: Help ID gearbox/bellhousing?

    Could be, but I am not seeing a full frontal shot of the bell to determine exactly. Oblique views are hard to quantify.

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    Senior Member Jake's Avatar
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    Re: Help ID gearbox/bellhousing?

    True enough. I'll clean it up this evening and take some more pictures.

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    Re: Help ID gearbox/bellhousing?

    Nor am I seeing a shot of the trans side. Is the rust hive still attached?
    Finding a bell to accept a Moss other than the usual suspects is a stretch, but here is some data:
    https://www.gomog.com/allmorgan/mossgearbox.html

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    Senior Member Jake's Avatar
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    Re: Help ID gearbox/bellhousing?

    Thanks, TOC.
    I took a few more shots this morning, pardon the blurriness in a few of them.
    I think I'll try and get the aluminum bits off, then de-rust the entire assy with electrolysis. Should be fun.
    Jake




















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    Re: Help ID gearbox/bellhousing?

    I see. Odd starter placement, like for a V block to clear the bank and head. Plus what looks like an on-purpose big hole at the back of the starter bulge.

    On the trans, on a flat cast pad, take sandpaper and clean it off, looking for part number/serial number. On the main cast body. Identifies where it came from.

    I looked at Rover and Morgan and Jensen bells, not seeing it there.
    The mechanical clutch sets a type, and two holes for two cross shafts is indicative of....something!

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    Re: Help ID gearbox/bellhousing?

    Bingo, maybe.

    https://jl-discourse-uploads.s3.amaz...8c248b8345.jpg

    "It was specifically designed for use with the “Standard” based Jaguar/SS engines like on the Mk IV and V (but you’re more familiar to this particular subject than I am). I also understand that the spring of the driving was sticking through a hole in the Bell Housing." sic

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    Senior Member Jake's Avatar
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    Re: Help ID gearbox/bellhousing?

    Right, that's what I figured, clearance for the starter pinion gear.
    I found two stamped numbers on the cast iron case.

    DA10177
    C2071

    Maybe these mean something?
    Thanks for helping with this mystery.
    Jake

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    Re: Help ID gearbox/bellhousing?

    On Jags anyway, the prefixes indicate a lot....but the DA shows up in none of the databases I have access to. Yet.

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