front crank seal
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Thread: front crank seal

  1. #1
    FRESHMAN ROVER
    Join Date
    February 24th, 2006
    Location
    Fredericksburg, VA
    Posts
    66

    front crank seal

    I am looking for info and/or advice on replacing the front crank seal (not the front cover gasket). I am trying to eliminate potential leaks and this is the next step.

    My first question is tools...do I need the factory tools? It seems that if I put the RR in gear, the crankshaft will not turn and I should be able to break the bolt loose (good so far?). I assume that a large breaker bar will be necessary to break the bolt loose.

    Next, do I need that same tool to remove the pulley or can I use a two-arm gear puller? Obvoiusly I do not want to destroy anything in the process.

    Once I get the pulley off, the manual refers to one tool to remove the old seal and another tool to install the new one. The new seal has not arrived, so this may be obvious once I get the part. Again, I do not want to tear anything up.

    Final question, can I just do as above and leave the RR in gear, use a large breaker bar, and put the 200lb-ft of torque on the bolt to reinstall?

    I am sure that I am not the first to try this...As always, thanks for the help.

    Paul
    1984 Land Rover 110 SW 2.5D Olive Drab
    1989 RRC (sold)
    1995 P38 4.0 Epsome Green "The Sheriff"

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  3. #2
    LIFETIME CONTRIBUTOR
    Join Date
    June 13th, 2004
    Location
    Emu Plains, NSW, Australia
    Posts
    5,346
    I'm trying to remember how I removed the crank pulley bolt when I put on my new timing case.

    Did I remove the radiator and use a rattle gun? Or did I lock the breaker bar up against the chassis and hit the starter?

    BTW, there is a revised seal for the front cover. It was introduced from VIN WA377414

    Bulletin No: 0002
    CDS. ref: L8356bu
    Issue: 1 Date: 04.02.98
    AFFECTED RANGE:
    All V8 Range Rover - VINs prior to WA 377414
    All V8 Discovery - VINs prior to VA 743702

    PROBLEM: OIL LEAKAGE FROM CRANKSHAFT FRONT COVER OIL SEAL
    CAUSE: Contamination of oil seal lip.
    ACTION: Replace front cover oil seal with the new twin lip seal detailed in PARTS INFORMATION which provides increased protection from external dust and debris.

    Refer to the Workshop Manual - Repairs - Crankshaft Front Pulley and Front Cover Oil Seal for the correct replacement procedure.

    PARTS INFORMATION: Oil seal - Crankshaft:
    Old Part No New Part No
    ERR1632 ERR6490

    Ron
    Ron Beckett
    2004 L322 Range Rover Vogue 4.4 Auto

  4. #3
    FOUNDING MEMBER
    Join Date
    November 30th, 2004
    Location
    Northern California
    Posts
    1,322
    I used a strap wrench to hold the pulley while I put a breaker bar on the nut and whacked it with a hammer....hard. I blocked the strap wrench up under anything I could with pieces of 2x4 wood to keep it from turning. Re-assembly was the same process, except I didn't use the hammer.

    Removing the radiator isn't necessary, but it does give you a lot of room. Considering it's pretty easy to remove, you may want to consider it. Once the nut is off, the pulley will just pull right off. It has a groove on it, so it only goes back on one way.

    The crankshaft seal can be pulled out using your fingers. The new seal can be pressed in using anything round and of similar diameter. It's not too hard to do.

    I would recommend removing the whole front cover while you are in there. It not only makes replacing the seal easier, but you can eliminate any possible future leaks while you are at it. Heck, I would even replace the oil pressure switch seal and water pump gasket while you are in there....you have excellent access.
    1995 Classic LWB
    2000 DII

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