On a Toyota newsgroup I frequent an owner has been told by the dealer's shop that his engine block was porous. IIRC there was a run of engines (was that in the 940s?) that were plagued by porosity and wondered if anybody had information about how serious the problem is.
Mike
The problem was with early ('91-'95) 960/S90 inline-6 blocks, and it was caused by an interaction between coolant and the alloy used in the block. These blocks literally corroded away. I believe that Volvo issued a 'silent recall' in the mid 1990's and ended up replacing quite a few engines that were still under warranty by virtue of this program.
This should not be a problem that afflicts any of the 960/S90's which are currently on the road.
Thanks, Scott. That would be different from the situation with the Toyota, since this is the first one to show up. Looks like a casting defect in that one.
Mike
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