[rwg200]

I caution you against the hotwire technique for anything other than diagnostics. You defeat all of the safety shutdown features.  If you do have a problem such as low or no oil pressure, then it could get expensive quick.

I am not saying you do have a serious problem. Just raising the issue so you make informed decisions about the work around.

Thanks Richard,
I must admit i agree and having read the posts above i realised i have by passed the fire suppression system etc which is not very sensible!
However the suggestions from the other guys have given me some ideas to go a check next time I'm with the coach.
Just need to find the extinguisher safety system to see if its that as the oils and water levels are good.
Thanks again for you comment and warning.
Cheers,
Rob