plate unknown from lower unit

[oldfe]

This plate fell out when I removed extension on lower unit to fix water pump, Water pump grommet improperly installed, First where does plate go? second small rubber O ring does it fit on drive shaft last item, Kit had 3 grommets How do I decide which one to use? the previous one was installed from inside of water pump and was chewed up. age has got to me, am ex Flight engineer and held a merchant marine masters rating but at 86 things do not make it.so easy to figure out.Thanks all.

 

[fhhuber]

Looks to me like an exhaust baffle.

To know for sure and to put it back in the right place, we need the model number of the engine.
(which will tell the displacement and year and which version if they had more than one that year)

With the model number we can link the exploded view parts diagrams for your particular engine. That guarantees you get the right information.

 

[Vic.S]

This plate fell out when I removed extension on lower unit to fix water pump, Water pump grommet improperly installed, First where does plate go? second small rubber O ring does it fit on drive shaft last item, Kit had 3 grommets How do I decide which one to use? the previous one was installed from inside of water pump and was chewed up. age has got to me, am ex Flight engineer and held a merchant marine masters rating but at 86 things do not make it.so easy to figure out.Thanks all.

From a 1978 15 hp ?

If so it's the exhaust housing baffle # 2 ( bottom LH corner) in this parts diagram

 

[oldfe]

sorry model #15855B serial #Eooo1517 1978 15hp with long shaft adapter

 

[Vic.S]

sorry model #15855B serial #Eooo1517 1978 15hp with long shaft adapter

then as posted above!