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Bradsinger
01-18-2008, 10:35 AM
Does this prop look like it's missing some cup?

TMCNo1
01-18-2008, 10:43 AM
It looks like it has some cup. Depending what brand of prop it is, it may be stamped on the prop hub between the blades or on the hub behind the prop nut. IIRC, the cup is the flipped up part (slight hook) of the trailing edge of the blades where the water exits the blade.

helton333
01-18-2008, 10:44 AM
It looks good to me with the exception of the retaining washer. Mine has a brass notched retaining washer - as long as the cotter pin is good, just make sure it is tight and I think you are fine.

TX.X-30 fan
01-18-2008, 10:49 AM
Is a bigger "cup" better??? :confused:



:D :D

TMCNo1
01-18-2008, 10:52 AM
Is a bigger "cup" better??? :confused: :D

My wife has always said she'd like a bigger cup, but I keep insisting the boat runs fine the way it is!:rolleyes: :D

Sodar
01-18-2008, 11:10 AM
The prop just looks funky. I cannot pin it down, but it almost looks like it has about as much blade surface area as a cleaver outboard prop. Call Eric @ OJ propellors and ask him to send you a prop to try out. If you notice a change in performance, buy a new prop, if not, just leave it as is!

EJ OJPROP
01-18-2008, 11:56 AM
The propeller was made by Mercury Marine and was standard many years ago with the 454 motor. There is cupping however the small blade area of this 4-blade causes higher than prefered RPM. I have recently re-proped a few of the MC's powered by the 454, 1:1 trans, with our 13 X 12.5 LC 1" XMP 3-blade. Give me a call if you have questions.

Eric @OJ PROPS 800-359-9730

TMCNo1
01-18-2008, 12:19 PM
The propeller was made by Mercury Marine and was standard many years ago with the 454 motor. There is cupping however the small blade area of this 4-blade causes higher than prefered RPM. I have recently re-proped a few of the MC's powered by the 454, 1:1 trans, with our 13 X 12.5 LC 1" XMP 3-blade. Give me a call if you have questions.

Eric @OJ PROPS 800-359-9730


Now that's service!

Bradsinger, you need to talk to the man!

Maristar210
01-18-2008, 12:25 PM
Your local dealer could help you select the right prop as well

Just sayin' Harold:popcorn: :popcorn:

east tx skier
01-18-2008, 12:46 PM
Your local dealer could help you select the right prop as well

Just sayin' Harold:popcorn: :popcorn:

We're still waiting on an answer from Erk as to what the stock prop is. :)

TMCNo1
01-18-2008, 01:02 PM
Your local dealer could help you select the right prop as well

Just sayin' Harold:popcorn: :popcorn:

How in the world did I forget the first and most obvious person that a owner would/should think to ask, I'm slipping in my old age!

Bradsinger
01-18-2008, 01:41 PM
Thanks for all the input. I knew I could count on U guys. I'll Look into a different prop soon as it warms up a little. I was thinking somebody hit something with it and just cut of the leading blades for a quick fix.