It doesn't work on all the 83s, just some. The whole problem is whether they have the bolt or not, I do.

Wow it is an outward ridge? I should look through my factory service manual for a cross sectional view of my IP, it seems like the 603 could be setup quite differently in this aspect. It shows almost a step in the flywheel in this pdf but this one doesn't show it. I presume when they say -15* ATDC that they mean 15* after (to the left of) the TDC marker and not 15* to the right of. Am I wrong? If it is like this latter method then 16* (to the right) would be advanced 1* and not 14*.

Thanks,

__________________
Jeff M.
Mercedes W123 DIY pages are now located here.
1983 / 1984 300D Sold
2000 CLK430 Cabriolet ~58k Sold
2005 Avalanche 4x4 ~66k