cheers steve, i dont recall anything on the sides as i wanted to pull it off and check pin!.
did they do one without/older version?
as i only want to change head..and if its screwed..i'm screwed.lol
thats what i recon,
remember looking for a clip and ended up taking little cap screw off to look inside..saw a screw looked like behind motor onto valve body!!!!
might be worth going for the motor and hoping its not the micro switch.
however, the manual leaver wont budge!. jammed syncron?!!