If it were me, i'd probably replace those rode bearings and forget about the valve marks.... seen a lot worse :-)Sadly, i think i've only ever seen one IDI diesel without some valve marks in the pistons!As has been covered, the big thing if the head has been skimmed is to make sure the valve seat is cut and that the valve is cut back also (i think it was 'b' in those scans). The valve length should be cut back the same amount as the valve seat, otherwise the valve lift will be more than it should be, at all cam positions, hence the marks in the pistons.
Sick and tired of trying to silence the apparent piston to valve tick from the last 3 years or so. Reset the cam to standard, and measured cam advance, using the 'recommended by Fatmobile' technique of locking cam and reading off flywheel error... I have been running my cam advanced by3 1/2 teeth on the flywheel, or 2.73deg x 3 1/2 or advanced by 9.5 degrees of crank 4 3/4 degrees on cam! Ticking still there but engine now running smoother which is partly down to injectors settling in after a rebuild. Ticking still there with engine switched off and going down an incline in gear. Any ideas what it could be?
Quote from: Mark(The Miser)UK on September 28, 2011, 12:04:49 pmSick and tired of trying to silence the apparent piston to valve tick from the last 3 years or so. Reset the cam to standard, and measured cam advance, using the 'recommended by Fatmobile' technique of locking cam and reading off flywheel error... I have been running my cam advanced by3 1/2 teeth on the flywheel, or 2.73deg x 3 1/2 or advanced by 9.5 degrees of crank 4 3/4 degrees on cam! Ticking still there but engine now running smoother which is partly down to injectors settling in after a rebuild. Ticking still there with engine switched off and going down an incline in gear. Any ideas what it could be? Man that's messed up!! What was the cause of this?
Quote from: Mark(The Miser)UK on September 24, 2011, 01:19:59 pmAre you sure your Bentley says that? Read again, and I think that you will find that the 'd' =0.5mm is for a different diagram.I just checked again and I'm 100% sure that what it means.I'll take a picture of the diagram and wording and post it in the next day or two.
Are you sure your Bentley says that? Read again, and I think that you will find that the 'd' =0.5mm is for a different diagram.
Oops, it's kinda rare for me, the bentley, my camera, the camera cord and a computer to all be in the same place at once.From the '85-'92 Bentley Manual.