Car Won't Start After Changing Crank Oil Seal

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  • madpugger
    S2Forum Extremist
    • Sep 2007
    • 1901
    • Country: Scotland

    #16
    As others have said, the timing is out and needs sorted.

    It has happened because tie-wrapping your belt to the cam pulley will do nothing to prevent the timing being off! If you want to do that, you need to lock the cam with a locking tool. Keeping the belt on the cam does nothing to stop the cam rotating, thus when you put the belt back on the bottom pulley (which can also move), the timing is out. The cam will want to rotate because there will be some load on one of the cams against a tappet, so it will want to get into a place where there is no force on it...

    You should always check your marks are aligned after replacing/re-fitting a belt, by turning the engine by hand if they are not quite in the right position.

    You should NEVER try to start an engine to check the timing! This can cost you a shedload of cash when the valves and pistons have a fight!

    I hope this helps, it is as important to know why you need to fix it, and why it has gone wrong, as it is to actually fix it

    Thanks
    Mike

    Le Mans 2012
    Nurburgring 700
    1995 S2 Avant

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    • 220bhp
      S2Forum Fiend
      • Nov 2004
      • 2578
      • Home: United Kingdom

      #17
      Another possibility if you had the crank bolt out, is that the key way has failed and the crank sprocket has moved.

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      • bilko0795
        S2Forum Extremist
        • Feb 2011
        • 1883
        • Country: Wales

        #18
        Car all done and starts ok.

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        • UrS4boy
          S2Forum Obsessed
          • Feb 2006
          • 11859
          • Country: Canada

          #19
          Originally posted by bilko0795
          Car all done and starts ok.
          Good news. Does it also make some decent boost now?

          RS2'd 93 UrS4 5 spd sedan
          94 UrS4 V8 6 spd manual avant

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          • bilko0795
            S2Forum Extremist
            • Feb 2011
            • 1883
            • Country: Wales

            #20
            Originally posted by UrS4boy
            Good news. Does it also make some decent boost now?

            Doesn't feel as good as it did and now i have a popping sound when i boot it and change through the gears

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            • UrS4boy
              S2Forum Obsessed
              • Feb 2006
              • 11859
              • Country: Canada

              #21
              Originally posted by bilko0795
              Doesn't feel as good as it did and now i have a popping sound when i boot it and change through the gears
              Could be a boost leak or a bad by-pass valve (??)
              RS2'd 93 UrS4 5 spd sedan
              94 UrS4 V8 6 spd manual avant

              Comment

              • bilko0795
                S2Forum Extremist
                • Feb 2011
                • 1883
                • Country: Wales

                #22
                Originally posted by UrS4boy
                Could be a boost leak or a bad by-pass valve (??)
                The boost feels Ok, boosts to 1.2 bar, I think I need more power time to upgrade to Rs2 spec. told her indoors the turbo maybe playing up might need a new one

                And the popping could be the 3" straight through exaust i have fitted as my sons car spits flames and bangs, he also has a straight through exaust.

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                • Majorcina
                  S2Forum Extremist
                  • Jun 2013
                  • 1334
                  • Country: Montenegro

                  #23
                  1,2 on digital boost with atmospheric? or without it?
                  If is with atmospheric then you got a leak

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                  • bilko0795
                    S2Forum Extremist
                    • Feb 2011
                    • 1883
                    • Country: Wales

                    #24
                    Without.

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