How to identify engine? 1600? 1500? other?

[kleinporsche]

it's logic, but what does single relief means.

[Zornig]

I have no idea as im new to the AC sceen. Im a WC guy

[Bullyboy]

Look at the bottom of the case theres only one of the big flat blade screws there, at the rear of the case near the pulley.

[bow]

to answer the single relieif question single relief is how many reliefs in the case they look like flat head screws that have springs when you remove the screw. kinda hard to exlpain