The H430 came with the Volvo 50HP and Yanmar 50 HP.
You can call
SBO store for the Yanmar Model#
My rebuild was caused by water getting into the oil.
I have had Zero problems with my Volvo Penta MD22L.
The exhaust elbow "Riser" on mine is a
great design, with zero carbon build up and very good quench.
Water in the Oil
Very curious what your Re-build answer was to the intrusion, so I can protect mine.
1) Did you maintain your shaft Zincs?
2) Any signs of the Gear driven Water pump leak?
3) Was there any signs of loss of Anti-Freeze ?
4) Have you sailed much in Heavy seas with engine off?
5) Do you have a Dripless Seal on the shaft?
6) Did you make sure your Exhaust was properly Spitting water?
Jim...