Aluminum or stainless steel prop Aluminum or stainless steel prop
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    Aluminum or stainless steel prop
from Jackfish #14939 #14939  
8/12/2012 12:07:01 PM


 I have just bent my third aluminum prop on my 70 hp outboard. I have been advised not to get a stainless steel prop because it is to better tobend the alum. prop than damage the lower unit by hiting an object withe ss prop. It sure seems that it would be better long term investment to get te ss prop. Any thought?.

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   Prop from C.  8/12/2012 1:20:38 PM
 Wonder if there's a reason that all of the higher HP outboards come with a SS prop? No way would I ever consider aluminum except maybe for 15 hp or less!

They can still bend if you hit something hard enough, but much more durable than the aluminum. The props for bigger outboards have a hub that is designed to give/shear instead of damaging the LU gearcase.


   aluminum all the way from Fisherboy #10852 #10852  8/12/2012 3:51:02 PM
  You can get alum props all day long for $100 online. It costs a minimum of $125 to repair a ding in an SS prop.

Granted an SS prop will most likely just get dinged when an aluminum will bend from the same impact.

If you plan on banging into stuff a lot, stay with the aluminum prop. An Ss has slightly better the peformance, but on a 70, it's not worth the investment and repairs, if you are going to beat it up.

That said, I run an alum when I know I'm fishing nasty areas. I run one of my SS props, when I dont expect any incidents.

Edited 8/12/2012 3:53:44 PM

   props from Dwight #10907 #10907  8/13/2012 9:20:04 AM
 I'd take Fisherboy recommendation on this he's probably had more fixed than anybody on here.

   I know every obstruction in the river from Fisherboy #10852 #10852  8/13/2012 2:49:36 PM
I've hit them all at least twice.

   depends on where you fish from Beartrap   8/14/2012 11:49:44 AM
 in my experience,you are better off with a SS prop because any little bump is gonna damage an aluminum prop whereas it takes pretty good lick to ding up a SS can usually hammer the dents out unless you just mangle the hell out of it......also you're running a 70 hp and not concerned with wringing every last rpm out of your rig so a ding or two ain't gonna effect performance any....put another way,wood,sand even mud is gonna tear up an aluminum prop and it won't faze SS...only way to damage SS is to hit rocks or extremely hard wood with boat up on plane and even then you may not hurt it much...

   Sorry Guys from Rangerman  8/17/2012 9:03:16 PM
  anybody that would choose alum over SS has a loose prop nut

Edited 8/18/2012 8:13:32 AM



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