Crankshaft and injection pump pulleys offset (2 Viewers)

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Nov 13, 2018
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Hi,

Second attempt at understanding what is going on here.

I'd like to hear toughts as to how it is possible for the timing marks on the crankshaft and the injection pump pulleys to not match up at TDC yet the engine still run?
  • Crankshaft pulley offset?
  • Injection pump pulley offset?
  • Timing gears offset?
  • Injection pump offset?
This is on a 1PZ but I guess the same could apply to a 1HZ.

Thanks!
 
Quick follow-up: Reading about harmonic balancers (sometimes refered to as dampeners) I first thought that mine was about to give up the ghost and the two metal parts had started slipping because the rubber between them was too old which could have possibly explained the offset timing mark.

But it turns out the problem had a much simpler explanation. I had been using the wrong marks on the camshaft pulleys to verify timing... I was using the white paint marks on the camshaft and injection pump pulleys to check timing instead of the indentations on the sides of the pulleys.

So no more timing mark offset and no harmonic balancer to replace either!
 

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