An easy PRV question...
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  1. #1
    Fellow Frogger! Jason Morris's Avatar
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    An easy PRV question...

    Hi again. Furthering my V6 505 wagon quest, yesterday I was looking some removed XN1A engines and 4-sp automatic gearboxes, and noted the following major difference....

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    XN1A engines I saw had no flywheel at all, but a really thin flex-plate, and have the starter ring gear on the torque converter. (is this also true for the old 3-sp auto 504/505's ? )

    The version of gearbox for the OHC motor has no ring gear on the converter, so the engine must have a part-'flywheel' ?

    So....what does the 604 have ?!! Ring gear on the torque converter with a flex-plate on the engine only, or the same as the OHC motors ? (please say the former !!....)

    Also, has anyone ever purchased a new driveshaft for a 505 wagon (the inner bit of the torque/link tube from the box to the diff) - is it mega$$ if available at all? I'm thinking in advance for the extra Nm/lbft...mine has a wee clunk already....

    Thanks,
    Jason

  2. #2
    Fellow Frogger! Jason Morris's Avatar
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    Also, I took some rough measurements/drawings of the flexplate dimensions, and I'll be off to look at the business end of the PRV in the next week with ruler in hand !!

  3. #3
    Fellow Frogger!
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    Jason,

    Yeah all the 504/505 XN1, XN2, etc, auto models have the flex plate with the ring gear on the torque converter, as far as I know. From memory, the 604 I pulled apart last year was the same.

    Pugrambo should be able to confirm this.

    Dave

  4. #4
    Budding Architect ???? pugrambo's Avatar
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    Yeah all the 504/505 XN1, XN2, etc, auto models have the flex plate with the ring gear on the torque converter, as far as I know. From memory, the 604 I pulled apart last year was the same.

    Pugrambo should be able to confirm this.

    Dave
    as far as i can remember this is right
    if you give me a week or so i can confirm this when i pull the engine out of the spare car
    time to start tinkering hehehehe
    3 x '78 604 SL

    1 x 2018 3008

    1 x 2000 Citroen XM,

    1 x '98 306 GTi6 sadly sold

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0

  5. #5
    Gone Fishin' Ray Bell's Avatar
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    But is it a different diameter?

    As for the tail shaft, if it's the female spline that's clunking, you might fix that by finding a good one on a sedan tail shaft and doing a cut and shut... well, getting a good workshop to do a cut and shut. It might also be the spline on you pinion...

  6. #6
    Budding Architect ???? pugrambo's Avatar
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    i have never compared the diameters of them
    i do know that with a manual 604 i used to use a 505 clutch with the bigger drive spline as the box i used had the larger input shaft
    this means that the clutch dia's are the same so i could hazard a guess at the other bieng the same as well
    3 x '78 604 SL

    1 x 2018 3008

    1 x 2000 Citroen XM,

    1 x '98 306 GTi6 sadly sold

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0

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