Thread: 4.2 m117 heads
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Old 06-06-2019, 03:45 AM
rwd4evr's Avatar
rwd4evr rwd4evr is offline
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Quote:
Originally Posted by Frank Reiner View Post
What a pity that Mother Benz did not know that dowels would be so necessary when she attached the intermediate plate to the iron block.
The lack of dowels must be causing you no end of grief. So many gearboxes trashed.
Sorry Frank. It's just not the case here. Most everything you have said is pretty spot on, not this time unfortunately. I really wish it wasn't so but there are two dowel pins in the block above the pan rails. The only three bolts that actually lineup are the two lower intermediate plate bolts and the top left at the outer edge of the cylinder Bank. None of the rest lineup including all of the pan flange on the alloy block pan. I'd say the top right Bank hole could be drilled and tapped but it's not going to help with accurate alignment. The iron block does indeed have two dowel pins in the block directly above the two bottom outer bolt holes. The alloy block has such a more substantial rear main seal cover plate that there's no way you could get enough carved out to fit over it I don't think. No top intermiediate plate bolts either.

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Last edited by rwd4evr; 06-06-2019 at 12:06 PM.
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