Today I cleaned the the block, installed the W140 turbo coolant pipe and turbo oil feed line and installed the #17. I bought this head over 5 years ago off ebay knowing full well my #14 would have to be replaced some day. The seller claimed it was in perfect working condition. Only later I realized that it had been run on WVO and it was absolutely filthy. I disassembled it, cleaned the hell out of it, lapped the valves and installed new valve stem seals. Even though its a #17 head the prechambers take straight injectors.
Top is the 87 coolant line that goes into the back of the thermostat housing, bottom is the 93. Each one is designed around its respective exhaust manifold design.
New coolant line and the W140 turbo oil feed line.
New headgasket
And in goes the the head. The only real surprise was that the two allen bolts at the front of the timing cover that came off the #14 head are too short for the #17 head. I guess this must be part of the redesign. I'll have to hit up the hardware. I had 2 sets of used OM603 head bolts so I picked out the best of the bunch. Both sets contained 1 very rusty head bolt from from the #25 position. I don't know why that one rusts.
