I'm getting ready to install the time/oil pump cover on my 109 block. I have not released the cam timing distributor nut from the cover, as of yet. When I removed the cover I just unbolted the cover, but never loosened the cam timing drive lock nut. I'm getting ready to install the cover, but I'm not sure if I need to loosen the cam gear so that it spins freely, and can mate with the cam gear. I will be mounting the front cover up tomorrow and am looking forward to you suggestions. Thanks.