I replaced the head gasket on my B275 and you want to allow a good day really (with breaks?)It's quite straight forward,but I also have the manual try southern county tractor spares.
valve clearances 20thou hot
head torque 75-80 ft-lbs.
setting valves at 20 will be good enough to get it started so you can run through them when hot.
colin, November 2010
