#13554
Achilles
Participant

If the problem persists it may be the exhaust elbow blocked with exhaust deposits. On my 2009 37 Cruiser the elbow was completely blocked earlier this year.
It is a straight-forward job to remove it and clean it.
I used a drill to drill down the centre of each blockage
followed by a small chisel.
You will need a new (metal) gasket when refitting.