wow how confusing and I do this for a living!3 marks on the cam gears!!which one do you use.95 camary 2.2 4cyl.changed the intake cam after sprocket came looseand tore up cam and belt sprocket. thanks

 

If you get a answer please let me now I have same problem.

 

The back side (faces drivers side tire) of the cam timing gear has two dots that are about 4 teeth apart. The dots on the intake cam are located between two gear teeth. The dots on the exhaust cam are located below each tooth.

When the gears rotate and mesh together at the dots, the dots will be opposite of each other.

Align the lower dot (closest to the head) of each gear together. The upper dot on each gear will be above (higher above the cylinder head this lower dot by about 4 teeth.

If the gear/dot setup is correct. It appears if you were to now rotate the cams to move the two lower engaged dots downward the upper dot on each gear would then engage each other.

 

Ok thank you.Also what would make a tapping noise sounds like lifters but double over head cam has none.Had the head checked,valves checked,Compression checked and all ok.I also checked all the pulleys there ok to.Motor also has about the power it should any ideas would be great.Thanks

 

Did you check the valve clearance after installing the cam?

The injectors can make some noise.