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    Author Topic: rear main seal leak  (Read 1721 times)

    Offline 70 rtse

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    rear main seal leak
    « on: June 27, 2006 - 07:20:47 AM »
    Can you install a rear main seal whith only the trans out on a 383 motor.
    « Last Edit: June 27, 2006 - 07:23:18 AM by 70 rtse »
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    Offline Challenger6pak

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    Re: rear main seal leak
    « Reply #1 on: June 27, 2006 - 02:02:26 PM »
    Yes you can but it is not easy and it does not always work.
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    1969 Sport Satellite H code convertible, 1970 Cuda 440+6, 1970 Challenger R/T 440+6, 1970 Challenger 383 R/T auto, 1970 Challenger R/T 383 4 speed,1971 Challenger convertible.

    Offline Chryco Psycho

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    • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
    Re: rear main seal leak
    « Reply #2 on: June 28, 2006 - 12:39:38 AM »
    you will still need to remove the oil pan
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    Challenger - You`ll wish You Hadn`t

    Offline Challenger6pak

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    Re: rear main seal leak
    « Reply #3 on: June 28, 2006 - 06:15:47 AM »
    Yes, that is true.  Just drop the centerlink and wiggle the pan out.  I would rather pull the motor and trans to do the seal.  Not everyone has the tools to do this so it can be done in the car but might be more difficult.
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    1969 Sport Satellite H code convertible, 1970 Cuda 440+6, 1970 Challenger R/T 440+6, 1970 Challenger 383 R/T auto, 1970 Challenger R/T 383 4 speed,1971 Challenger convertible.

    Offline 70 rtse

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    Re: rear main seal leak
    « Reply #4 on: June 28, 2006 - 06:31:02 AM »
    Has eny of you done it whith the motor still in the car?
    I am getting the transmition re done and would be nise to change the rear main seal while the trans is out as it leaks.
    Thank you all for your help
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    Offline Chryco Psycho

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    Re: rear main seal leak
    « Reply #5 on: June 28, 2006 - 10:09:32 AM »
    it can be done in car , not fun but possible
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    Challenger - You`ll wish You Hadn`t

    Offline budrinker

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    Re: rear main seal leak
    « Reply #6 on: June 29, 2006 - 07:10:25 PM »
    piece of cake  ive done it 4 times and looks like im fixin to do it again .......... sigh
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    Offline matt63

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    Re: rear main seal leak
    « Reply #7 on: June 29, 2006 - 08:38:05 PM »
    It's not hard but one of the less desirable jobs that is for sure.  Pulling the top half of the seal out can be tricky as can be the installation of the windage tray and gaskets.  I would try and use adhesive next time.  I have heard of a few tricks to get better sealing.  Perhaps CP can validate these.  The first is to have 0.010" milled off of the rear main seal cap.  The second is to stagger the seal faces so they are not on the parting line.  Make sure the seal faces the right direction as it can be installed backwards.  Good luck!

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    Matt in Edmonton

    '68 Valiant
    '73 Cuda 340 4 speed (408) SOLD

    Offline Chryco Psycho

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    Re: rear main seal leak
    « Reply #8 on: June 30, 2006 - 01:17:52 AM »
    do as Matt said + put a dab of silicone on the seal ends so they glue together
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    Challenger - You`ll wish You Hadn`t
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