Cavitation Plate Fin

Message

Flanker · #1 Post by **Flanker** » Tue Sep 03, 2013 11:03 am

I noticed on my 150 Merc Outboard that the fin above the propeller that bolts to the bottom of the cavitation plate is missing.

What do you call these things..Cavitation plate fin? What is their purpose and where could I find one?

redbeard · #2 Post by **redbeard** » Tue Sep 03, 2013 11:12 am

Its called a Trim Tab try a dealer or ebay, craigslist.

redbeard · #3 Post by **redbeard** » Tue Sep 03, 2013 11:13 am

The tab is to compensate for steering torque.

Flanker · #4 Post by **Flanker** » Tue Sep 03, 2013 11:22 am

Thanks...I don't know how long it has been missing but I haven't noticed any difference. What should I be experiencing?

oldmn19 · #5 Post by **oldmn19** » Tue Sep 03, 2013 1:43 pm

If you release the wheel it would start running left or right, and not stay straight. If it doesn't don't sweat it.

Bryden24shp · #6 Post by **Bryden24shp** » Tue Sep 03, 2013 4:06 pm

Some of them do not have torque tabs anymore. If the plate and bolt is still there, you have an anode in place of the torque tab, from the factory.

Pontoon Boat & Deck Boat Forum

Cavitation Plate Fin

Cavitation Plate Fin

Re: Cavitation Plate Fin

Re: Cavitation Plate Fin

Re: Cavitation Plate Fin

Re: Cavitation Plate Fin

Re: Cavitation Plate Fin