Please help Re: Timing 72 2L

hi everyone, my friend has a 72 2L kombi motor and we need to replace the rings. unfortunatly we have not got a handbook for it. i was hoping someone maybe able to tell me the timing for this motor or where i could. thanks guys
:cry

a 2L motor is 1976 on
timing for the 1800 & 2L is 7.5 advanced - with timing light

thanks guys