Finally reassembling the 400 engine and have two questions I'm hoping for a bot of help...
One for Nurse Julie - you very kindly sent two O rings for the outer dowels on the crankcase to sit into the base gasket. I enlarged the holes to suit these but when lowering the barrels over the studs, the barrels 'rock' on these and before I tighten anything down I wanted to make sure that's OK and that they will just squash down without problem?
Secondly with the large O rings around the bores, these don't seem to want to stay in the grooves but tend to roll down the bore a bit.
Does this cause any issue when clamping the barrels down - i.e. do they just slide into the right place as the barrels are fitted or is there a risk of them getting snagged and out of position / shape?
Cheers,
Andy