Took off the oil filter adapter. Man those things are tight. I first put a 10mm spanner on the T60 torx bit and stuck my jack handle over it but the spanner bent before the bolt undid.
Pulled the welder out, put the torx bit in a 19mm nut (the largest ring spanner that the jack handle would fit over) and came up with this to do the job.
Also pulled the rocker cover off for a new gasket, the oil leaks will be gone soon
Cheers
Steve