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.
> 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
Michael Pardee - 04 Jun 2005 13:28 GMT
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
> 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.
[quoted text clipped - 14 lines]
>>
>> Mike