Mercruiser Elbow Design Change

Wanderer 290

Well-Known Member
Jul 1, 2019
850
Traverse City
Boat Info
01 sea ray 290 sundancer
Engines
Twin 5.7 b3’s
I discovered and read an article the other day regarding Mercruiser changing the design of their elbows over the years and that the design change(s) have contributed to reversion. Specifically, the article says a vacuum break was first modified and then eliminated.

Anybody aware of this? I have the article saved as a 10 page file on my phone and trying to figure out the best way to post it.
 

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