Order For Fitting Crankshaft Bearings and Seals

Discussion in 'The Workshop' started by TeeZer, Apr 30, 2012.

  1. TeeZer

    TeeZer Member

    Messages:
    124
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    R1, DNA 50
    After plenty research I realise there are many ways to skin a cat on this one.

    If one fits the bearings to the crankcase halves first then fits the crankshaft to the bearings.
    Can I fit crankshaft seals after the crankshaft is fitted as to avoid the possibility of overheating them?

    How much heat can the seals actually take? Oven temp at say 120ºC?

    I have seen lots of tutorials and videos on fitting the crankshaft and bearings in various orders, but have noticed that they always have no crankshaft seal. I do not know if this is only demo or fitted later. My Haynes manual states fit the crankshaft seals, the bearing to the crank and then to crankcases.
     
    TeeZer, Apr 30, 2012
    #1
  2. ramo

    ramo GoldMember

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    1,572
    So you want to run your engine with no crank seals?
     
    ramo, May 1, 2012
    #2
  3. Jonnymarrw00t

    Jonnymarrw00t Moderator Staff Member

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    Piaggio Zip 05 plate
    I heat the cases up with a blow torch then push the bearings in, then heat up the centre of the bearings and put the crank in, after I've centralised the crank I let it cool down, then I put the seals in.
     
    Jonnymarrw00t, May 1, 2012
    #3
    wedgie likes this.
  4. wedgie

    wedgie Member

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    222
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    Mk 1 Zip SP
    Think hes saying do the seals go in after the bearing and crank is in?
     
    wedgie, May 1, 2012
    #4
  5. wedgie

    wedgie Member

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    Mk 1 Zip SP
    What jonny said
     
    wedgie, May 1, 2012
    #5
  6. TeeZer

    TeeZer Member

    Messages:
    124
    Rides:
    R1, DNA 50
    LOL, yes that is what I am trying to say, put the seal in last. Thanks Jonny, much appreciated!
     
    TeeZer, May 1, 2012
    #6

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