"0" vs. "1" timing gears ? mix or match ?

[ty901]

a buddy is building a 2.2L engine from random parts.
the factory parts manual lists 2 versions of the steel timing gear that lives on the crank.
his intermediate shaft gear is marked '0'
1) is it critical that he use the corresponding steel gear ?
2) does the steel gear carry the same '0' mark ?

input appreciated.
TIA

[RobFrost]

No idea the answer, but is this ignition or valve timing? They made cars with Bosch snd Marelli distributors, maybe they had different drive gear?

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[dannobee]

Look in the factory workshop manual. The "0" and "1" gears can be swapped around to set the gear backlash. There's a chart in the manual.

[gled49]

What dannobee says, sometimes mix and match required to set proper backlash.

[ty901]

thanks guys... I'll check it out. BTW, are these gears stamped similar to the gear on the intermediate shaft ?

[dannobee]

Yes, and the case is usually stamped, too. Near the fan housing and crank pulley.

[Rosco_NZ]

This works well in theory .. but anyone managed to source a ‘1’ stamped IS gear ..?? Not sure whether these are available ..

[Flat6pac]

You have to match the number on the case
0 or 1, I have either if needed.
Bruce

[djpateman]

As Bruce says, the matching # is stamped on the case; example here:

[Rosco_NZ]

This goes out the window once the case halves are flattened and align bored.

[dannobee]

As does the distributor drive gear backlash. Although that would make a good time to update to EFI and COP or distributorless ignition.

[Henry Schmidt]

Originally Posted by Rosco_NZ

This works well in theory .. but anyone managed to source a ‘1’ stamped IS gear ..?? Not sure whether these are available ..

Of course we have them....