I have a 1993 gmc 1500 350 tbi engine.I need to no if the rotor on the disturber points to the no.1 cylinder or the no.1 on the disturber cap when installing the disturber.please help

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28 May, 2015

  • 78%
    Solved this issue
  • 94min
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  • 58%
    Recommend to DIY
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Your supposed to make a mark all that before you pull the distributor. Did you mark the relationship between distributor body and engine? Then you note where the rotor is pointing, make a scratch mark. When you reinstall the distributor, line up all the marks.

If engine was turned with distributor out, You need to put the #1 piston on tdc of compression stroke. Stab the distributor, which ever spark plug tower the rotor is pointing at/turning into, becomes number 1. Then you follow the firing order around the cap in clockwise direction.



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