Hi guys, working in my friend ls vtec timing belt. He disassembly the old one, when I went to put it together, I noticed the lower timing pinion is different then mine ( mine has the key in the pinion).

He uses the pinion with the key groove, but the key I see is short (just for the damper).

My question is: There's another key missing or this short key is for both belt pinion and damper?

In the photo I have the right one and he the left.


https://encrypted-tbn0.gstatic.com/i...Hu5t6giIuxR1Yw

thanks

 

The one on the left he has is for a obd2 oil pump, it has the star for the crank signal , the one on the right is for obd1 oil pump.