Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
My view of the rocker faces, they definitely need attention....Newman cams a good place to have them repaired and reground to specification. The pitting on them directly wrecks the oil film that's supposed to keep the materials apart (follower and camshaft) with likely a short life thereafter. This is often the result of poor oil condition from servicing and or, dilution of the oil from petrol contamination, short journeys etc. Generally looks pretty clean and good condition in there.Agree with casting marks, the method of die-casting has a jigsaw puzzle of moulds to form the shape in which to cast, when opened to get the crankcase out then imperfect mould joints leave these characteristic split lines where those joints exist. Not detrimental at all.
Guess who got an ultrasonic cleaner and couldn’t wait to mess about with it!I set about cleaning a few bits and bobs and had the bright idea of cleaning the rocker cover, it cleaned it ok but it has changed the colour dramatically. My question tho those who know is, if a this still ok to use… The journals are in the same condition but no longer bright, will this matter, will the integrity of the part be compromised? I do have a spare which has a ok but not quite as good as this one.