Hi All,
Things were going well yesterday, got cam covers on and air intake/fuel injection in place & drained the oil

Problem came to getting oil filter off, the 3/8" square had been slightly mangled by a previous person & I didn't have a 24mm socket or spanner! Luckily my mate across the road did and I went to undo the cap, couldn't move it with the normal ½" drive ratchet so moved up to the long ½" torque ratchet bar. set it at 40 Nm and it clicked so cranked it up to 100 Nm and movement, this continued for some while, (having to click ratchet by hand one click to get socket back on the nut) and all the time needing max effort to move the oil filter. To cut a long story short, the whole filter housing was moving so thought would have to do the convertion in maintenance guides, I borrowed a ¾" drive 24mm and a oil filter chain wrench and after half an our of unwinding (1 click at a time) the housing was still in the same position

I then put the chain wrench on the housing and braced it against the steering link bar and undid the cap (initial turn was very very tight, then turned by hand, could have save myself 2 hours of frustration and growing annoyance

Query; as the housing was just spinning and only with a 450mm bar am I okay to put in new filter and torque up to 15 Nm as it says on the cap, or will I have a leak around the base of the filter housing?
Secondly:
Is the arrowed bolt the Camshaft sprocket bolt and if so the Torque guide gives this as the values:
Camshaft sprocket to camshaft 50 + 60° + 15° 1
There are no notes at the bottom to indicate what the 1 at the end advises can anyone help please?
Cheers - Paul