Quote:
Originally Posted by rswannabe
... BUT the factory did not mount knock sensors directly to the case. Instead they mounted them to metal bridges that were bolted to the heads. So seems a bolted connection can’t be too compromised.
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No they didn't. They bolted the bridges to the BOTTOM of the cylinders, nearest to the case.
Just because people drill and tap the heads for the bridges doesn't make it right, and in fact Bosch specifically says NOT to mount the knock sensors in this manner because of valvetrain noise possibly giving erroneous signals.