I'm overhauling an Atco with a Villiers 4-stroke engine and it looks like the breather is missing (which might explain why it was covered in oil). I don't know if it's just a ball bearing I need or if there's more to it but I would be very grateful if anyone can help! Not sure what the engine is but the serial no. is 599D 9451 and the flywheel is marked 203001 4/62. Here are some pics which should help, the breather location is marked in red in the first one. Cheers