When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Fixed yesterday with an hour of labor at a trusted garage. Turned out to be loose coolant lines under the drive train from an earlier dealer repair on the clutch. Torqued a few other bolts for good measure and noise is gone.
Loose Coolant lines can also cause a knocking issue that could sound like an engine knock, so not really surprised. Cool!