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If that was a rare case (such as original RSR/GT-2) indigenous to that car, I would repair it since new ones are NLA, however with a street car, I would get another used one.
That's not normal wear and tear. To me it looks like either the engine was dropped or some weird jacking operation was undertaken on the case wherein the car was lifted by the case in the wrong manner.
By now it is a game of numbers. It can be welded and last forever.
It is up to the OP to determine which is the most affordable solution, weld or replace.
Interesting crack patterns. I wonder it was jacked up by the case and the car slipped off the jack? Edit: more likely due to the accident mentioned above.
I agree, given the paucity of second hand cases available (Singer impact) the only option may be to weld it up. Assuming it's still dimensionally correct, I wonder what the downside is given the number of fasteners holding the case in place?
To further on the idea, I personally know of (2) 356 cases that were cracked around the sump plate, JB welded literally on the side of the road, and finished their rally raid without any issues. One has been driven several thousand Kms as repaired before being taken apart for a rebuild.
Tough engines, low stress area. I am not sure I would risk it around a crankshaft webbing, but down there, with correct welding and machining of the mating surfaces, I would not think twice about it, after the numbers are determined in favor of repair.
01-21-2018, 11:22 AM
Crank case beyond repair or not?
