Hello , Does any one know the specs on the crankcase seals for a Dolmar 143 . I recently purchased to 2 cylinder and piston kits for 143's . I got them from Germany for under $ 80 apiece . I want to replace the crank seal as part of the rebuild and would prefer to use new and not NOS seals . I an hoping to find seals that are resistant to fuel with ethanol in it .