92 Z34 Issue!

I had a 92 Z34 given to me since my van was totalled into an accident,on the way home the timeing belt broke,i have replaced the belt however i now have no oil pressure at all,is there a connection with the timing or do you think its coincidental that the oil pump went?..i have spent a couple days re-doing the timing as it is.The guy i got the car from didnt know anything about the car and neither do i.the repair manual doesnt really give to much on trouble shooting this. Maybe someone out there has had this problem?.email me with any info [email protected]

I hav3e also found out about a chain that actuates the oil pump , how is this replaced or can it be etc?