Missing Timing Marks

[NCM]

After looking numerous times, I cannot find anything resembling a timing mark on my pulley. Is there a way to determine TDC for piston 1 without removing the head?

Thanks,

David

[just me]

Find TDC on 5. There is a port for that. The timing mark s faint. I used a scotchbrite pad to polish the pulley and find the marks.

[RMS]

above No 6 is a 1/4in pipe plug. 1 and 6 are mirrored. td on #6 = td on #1. if no marks can be seen, mark td center . you will be looking for 2-4degreas btdc so not far past the tdc mark. if she doesn't want to easily pull past 36mph on the speedo she is too advanced.

[NCM]

Thanks guys

[just me]

The plug is over 6? Makes sense. I didn't go out and look. I do know the marks are faint on the wheel and it wasn't until I polished the rim of tthe pulley that I could see it. In the end, I set it to spec and then adjusted 2 degrees at a time until road testing showed it to perform best.

[NCM]

Are the original marks etched in or painted on?

[just me]

Etched on the edge. But not deeply.

[ashyers]

Don't be surprised if there's no marks at all. The truck we worked on last year had nothing. We set timing with a dial indicator on #6 and some masking tape on the pulley. We moved the piston equal distance to each side of TDC and split the difference for our mark.

[just me]

I hope you filed a notch there for future reference.