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Thread: Engine rebuild, torqued down crankshaft won’t move

  1. #31
    Join Date
    Jan 1970
    Location
    Narre Warren South
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    6,314
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    I just looked at some pictures of shell bearings for 3 bearing cranks and its a bit confusing.

    Here the tangs on the bearings are on different sides but 4 are one side and two the other ?
    https://www.allfourx4.com.au/epages/...xoCMDkQAvD_BwE

    I would have thought 3 & 3 or all 6 the same but I haven't replaced crankshaft shell bearings previously so not sure what's correct.

    I looked elsewhere and all were on the same side ? But maybe they are using 'stock' photos and not of the real items. I noticed that in your pictures that they appeared different widths.

    Did you fit the shells with the tangs in the wrong place ? If so the bearing would have been pushed against the crank pin causing it to tighten.
    As mentioned, grinding the tangs off is a bad (potentially stupid) idea as they locate the shells radially & axially.

    What were the numbers were on the back of the original shells, if they are undersized it's normally stated.

    Possible solution......The parts manual shows that the front & centre shells are the same but the rear shells are a different part number. Maybe the picture in the link is correct ! Do you have the shell bearings mixed up ?

    Best of luck,

    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
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    '76 SIII 88" (Isuzu C240)
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  2. #32
    Join Date
    Aug 2006
    Location
    Melbourn(ish)
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    Quote Originally Posted by Davfis View Post
    Hi mate

    Worth a try but be careful with lubing the bearings up with oil. Pretty sure the shells have to be clean and dry where they sit it the block. Just oil the crank shaft side of the bearing. Been caught out with it before
    correct

    Quote Originally Posted by gromit View Post
    I just looked at some pictures of shell bearings for 3 bearing cranks and its a bit confusing.

    Here the tangs on the bearings are on different sides but 4 are one side and two the other ?
    https://www.allfourx4.com.au/epages/...xoCMDkQAvD_BwE

    I would have thought 3 & 3 or all 6 the same but I haven't replaced crankshaft shell bearings previously so not sure what's correct.

    I looked elsewhere and all were on the same side ? But maybe they are using 'stock' photos and not of the real items. I noticed that in your pictures that they appeared different widths.

    Did you fit the shells with the tangs in the wrong place ? If so the bearing would have been pushed against the crank pin causing it to tighten.
    As mentioned, grinding the tangs off is a bad (potentially stupid) idea as they locate the shells radially & axially.

    What were the numbers were on the back of the original shells, if they are undersized it's normally stated.

    Possible solution......The parts manual shows that the front & centre shells are the same but the rear shells are a different part number. Maybe the picture in the link is correct ! Do you have the shell bearings mixed up ?

    Best of luck,

    Colin
    3 main crank?

    the 1+3 bearing journals are the same and the center journal is different. the tangs are reversed. from memory the center bearing is larger in width and is set up to go with the thrust bearings

    5 mains are all the same size.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

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  3. #33
    Join Date
    Feb 2018
    Location
    Adelaide
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    122
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    G’day all. So as it turns out the bearing were wrong. However they don’t make my bearing anymore. So the nice folk at Turner suggested TD5 bearing. Which work a treat. Thank you for all your help, suggestions and guidance. I really appreciate it.
    Kim

    'Maggie' 1960 Series 2 88, 2.25 Petrol 3MB

  4. #34
    Join Date
    Jan 1970
    Location
    Canberra
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    18,474
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    I hope you used plastigauge to measure the clearance between crankshaft and bearings to ensure the gap was correct.

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

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