i've looked at a '73 bavaria for a friend. going for $800. the engine made a fast ticking noise, and the owner said something about one of the cylinders leaking or something? and also that an oil change might take care of it. i know this isn't much to go on, but does this sound like a big problem? also, are there any pic's of bavariae on the web so my friend can see one? thanks for any help... chris