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Thread: Crankshaft tolerance’s

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    Guest richie s14a's Avatar
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    Crankshaft tolerance’s

    Hello all, does anyone know what size the big end rod journal has to be before I need oversized bearings . I bought a refurbished crankshaft and put pistons and rods back in but there is abit of play on rod journal no 4 , I measured it at 47.76 mm is this within standard bearing tolerance’s?

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    says in the workshop manual

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    tolerance limit on the journal is .05mm and standard wear tolerance up to 0.022mm.
    crank journal on standard size (depending on grade) will be 47.956 to 47.974mm.

    if your mic it at 47.76mm then it sounds like its been ground or its spun a bearing in the past. u can get 0.08, 0.12, 0.25mm undersize bearings from nissan.

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    Guest richie s14a's Avatar
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    Ok thanks s200rat , looks like it has been ground will have to get oversized bearings from Nissan ����.

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