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Originally Posted by Overdrive
...call me blind, Jake, but for the life of me I can't spot the crack(s) in the last image you posted...  |
In which pic??? They are pretty clear to me, even one is circled in red!
EVERY head that goes on any engine that we work with is pressure tested at temperature under double the pressure seen during normal operation. The difference that "at temperature" tests make are substantial with the M96 cylinder head.
jmatta, don't be concerned until you pull your water pump today and find it missing a portion of an impeller blade.
ALL of the M96 engines on the road need the water pump replaced, no matter how many miles they have seen as the time in service is the determining factor. tennisguy called this morning and we went over his situation, he is thinking about it and scheduling shipping.
I had another intermix call on the answering machine when i arrived at 0530 this morning and as I type this I hear Dean having a consultation with another intermixed 996 owner with the same symptoms. The cracked head calls are now greater than the IMS failure calls and they come in waves..