Port A XF 20

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Dr. Pete
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Re: Port A XF 20

Post by Dr. Pete » Sat Jul 11, 2020 2:00 pm

Pardon sirs. The code is on the prop, not the motor. Could someone decipher and tell me what or where to go? Thanks



Fuzz
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Re: Port A XF 20

Post by Fuzz » Sat Jul 11, 2020 2:13 pm

Dr. Pete wrote:
Sat Jul 11, 2020 2:00 pm
Pardon sirs. The code is on the prop, not the motor. Could someone decipher and tell me what or where to go? Thanks
It is normally stamped on the hub

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Re: Port A XF 20

Post by Dr. Pete » Sat Jul 11, 2020 3:18 pm

Thanks Fuzz. It is and I sent the code a couple posts up. What the heck does it say? Are there pitch numbers etc there to guide recommendations. Or do I trailer the rig somewhere for a prop guru to meditate over?

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Re: Port A XF 20

Post by Fuzz » Sat Jul 11, 2020 3:32 pm

Did you look on both sides? There should be something like pro4r17p on the prop

Dougster
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Re: Port A XF 20

Post by Dougster » Sat Jul 11, 2020 4:22 pm

Take the prop off and haul it in to nettleprops in Austin. They know their stuff, plus you get to drive through the heart of Austin traffic 8O Well, on second thought...

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Dr. Pete
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Re: Port A XF 20

Post by Dr. Pete » Mon Jul 13, 2020 9:07 pm

On the check list there’s this trivial mater of getting water out of the cockpit area. I would like it to be self bailing. My plan is that the boat will live on a lift or on a trailer when it is not on the water. Water ingress thru hatches will drain out the stern when on the trailer or on lift at the canal development at my friends house. End of the question is rain or wave....what scupper and where do you place them to keep the sole dry? Could drain the deck to the stern and then bilges. Rather not do that just for logistics, money etc. The stern is two distinct areas because of the tunnel. So can scuppers at the sole drain the cockpit deck or suck it up for more of everything to pump it out? Richard and Catfish what did you do?

Aripeka Angler
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Re: Port A XF 20

Post by Aripeka Angler » Mon Jul 13, 2020 9:27 pm

My prop code, FS4R12PYM90....
42025D3B-231E-48F0-814D-BF96CABDDD1F.jpeg
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Bare Bones build thread...
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xf20corpus
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Re: Port A XF 20

Post by xf20corpus » Tue Jul 14, 2020 6:15 pm

Dr. Pete,

A quick google of Cff4r14pym90 found that you have a PowerTech Coastal Flats Propeller in what appears to be 14 pitch. If AA has a 12 pitch, it sounds like dropping a couple degrees in pitch may be the ticket.

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cape man
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Re: Port A XF 20

Post by cape man » Tue Jul 14, 2020 6:28 pm

The pitch is measured in inches. Think of it as a screw. A 14 inch pitch will move the boat 14 inches with each full rotation. The force to do that rotatation is higher than a 12 inch, allowing the engine to run faster and with less load.

Slippage is real because its water, but the pitch numbers are based on the distance a screw would move with a rotation.

The other number is diameter, with a narrower prop turning faster than a wide one. It won't make as much of a difference as the pitch.
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Re: Port A XF 20

Post by Dr. Pete » Tue Jul 14, 2020 7:06 pm

Thanks and to reply cape man...can a prop doc alter what I got by 2 inches or do I go to the store? I don’t spend much time on the left. I am trying real hard here to get on the right side of the bell curve. Thanks to all

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