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Juan Crespo
Juan Crespo, Tech Trainer
Category: Mazda
Satisfied Customers: 1516
Experience:  A.S.E. Master Technician, Advanced Level, Emissions - Asian, Domestic, & European
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Same car 2004 mazda 6 2.3 liter codes p0340 p0505 cam and

Customer Question

same car 2004 mazda 6 2.3 liter codes p0340 p0505 cam and idle codes install crank pin on the side of engine but now crank pulley does not align there is no keyway on the crank ?
Submitted: 10 months ago.
Category: Mazda
Expert:  Juan Crespo replied 10 months ago.

Yeah, these things are tricky. Here is what you need to do:

  • Align and lock the camshafts See attached graphic 1
  • Install a M6 X 1.0 bolt by hand on the crank pulley See attached graphic 2
  • Rotate the crankshaft clockwise until the crankshaft is in the No.1 cylinder TDC position
  • Lock the crank in place by removing the cylinder block lower blind plug and screwing in a shoulder bolt (or Mazda tool 303-507). See attached graphic 3
  • Hold the crankshaft pulley tighten the crank pulley center bolt. See attached graphic 4

Important: Once you have the chain and crank pulley installed, remove all the special tools (or bolts and ruler) and then rotate the crank for two full revolutions until No. 1 piston is again in TDC. Recheck cam alignment with the ruler. If not OK, do the whole thing again until it's right.

Sorry this took so long - had issues with my database.

Best Regards.

Expert:  Juan Crespo replied 10 months ago.

Looks like graphic 4 didn't go through. I'll attach it to this post.

Best regards.

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