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  1. Join Date
    Jul 2007
    Posts
    2
    #1
    4d56 turbo , timing problem , after setting the timing marks on the crank diesel pump and cam i turn the motor over one full turn and realign the crank timing mark but the cam and injector pump are 180 degrees out , i tun the motor over one more turn and all the marks in the correct place , does any one know what is causing this problem and how to fix it please

  2. Join Date
    Jan 2006
    Posts
    1,682
    #2
    Ricky,

    Its normal. One revolution of an injection pump is only half of that of the crankshaft. So in a four cylinder engine it will take 720 degrees to complete the firing of all four. the pump should have turned 1440degrees or four complete revolutions supplying 4 cylinders one revolution at a time.
    Mas maiintindihan mo more kung familiar ka sa running mates, same piston position but in different strokes. After 720 degrees babalik ulit alignment ng lahat.

    Just TDC no. 1 piston and align the markings of camshaft, crankshaft, two silencers and injection pump.

timing probs