1991 Beretta/ timing specs

[nickronco]

I have a 1991 Chevy Bretta, 4 cyclinder, dual overhead cam. I need the timing specs or timing position of all spockets.

[jsgold]

A quick answer would be that the bottom one has the mark pointing straight up. the camshafts have a small round hole that should be at the bottom but NOT 6 o clock. Looks like exhaust cam(left is about 5 o clock and intake (right) is close to 7 o clock. Best to have a manual as it has 3-4 pasges devoted to this, assuming yours is a 2.3 dual cam engine. I have no way to post this but might be able to fax them to you to help you out. I have a 91 service manual that covers Corsica and Beratta cars. The book mentions using a tool to match these holes to ones on the timing cover, but not that simple from what I see.