Model 230 WA ?

[gpag]

I hit about 34 at WOT.

[fiddyfish]

I'm only hitting about 21 mph at WOT with the Yamaha 175 HPDI on my 230WA. I think that's kind of slow, even for this boat which weighs around 3000 lbs. I was also expecting mid 30's like gnrphil said. I'll get some measurements of prop size, pitch and height and post them.

[gnrphil]

Deleted my previous post as I was clearly in a state of confusion LOL.
Fiddy, that would be good as I believe you have some issues there.

[freezerfiller]

The fact that you gain no speed at a 1000 rpm difference makes me wonder if your hub is slipping? I'd think you should be getting close to 30 with that setup.

[fiddyfish]

I made some measurements as best I could with the boat in the water. My prop is 14 inches in diameter and has a pitch of 17 inches. The centerline of the prop is 9 inches below the bottom most part of the hull at the stern. I am thinking that it is positioned correctly, and wondering if it is a pitch issue? Do any of you know what diameter and prop you have for comparison? I am also thinking about the suggestion that the hub is slipping. Is there any way to check for that?

I attached a few photos for reference.

[fiddyfish]

[Juan]

The symptoms do sound like the prop might be slipping. One way to check for a slipping hub is to put the motor in gear and then try to turn the prop by hand. It shouldn't move. A much better and more accurate way to check it is to mark the prop and the shaft (with a marker or grease pencil or scratching both with a knife). Then after running the boat, check to see that the marks still line up. If they are no longer lined up,,,the hub is slipping.

[freezerfiller]

I agree with Juan's suggestion. Mark it, Try it by hand first, it will slip if it's really worn, if not, run it and check again. It may only slip under full load. Also while running, have someone look at the cavitation plate to see if the motor is mounted at the correct height. The cav plate should be just under the water at plane.

[gnrphil]

Jul 30, 2018 18:48:16 GMT -6 fiddyfish said:

 The centerline of the prop is 9 inches below the bottom most part of the hull at the stern. 

Mearsure where the anti ventilation plate is in reference to the hull,

[fiddyfish]

We've been having some nasty weather here on the south Jersey Coast, but I was finally able to get out today. I marked my prop before I went out, and then took this photo after I came back. A set of marks should be lined up at 6 o'clock, and another at 9 o'clock. It looks like my prop is slipping, but I guess I can't tell if it slipped a few degrees, or went around a bunch of times. Any insights on this, and what to do next?

[fiddyfish]

it looks like the photo got rotated 90 degrees do the 6 and 9 o'clock are off, but you'll get the idea.

[freezerfiller]

replace it. If it turns at all, it's not good.

[gnrphil]

Have it rehubbed, probably cost about $100.

[miket]

This is from my 95 230WA

I get 36-38 mph with a 150 depending on conditions.


There is one of those deck boats sitting in a field not far from my house

[freezerfiller]

Aug 3, 2018 7:51:23 GMT -6 gnrphil said:

Have it rehubbed, probably cost about $100.

That's a great idea. Replace it, and rehub the old one for a spare!

[freezerfiller]

Aug 12, 2018 15:35:07 GMT -6 miket said:

This is from my 95 230WA

I get 36-38 mph with a 150 depending on conditions.


There is one of those deck boats sitting in a field not far from my house

Mike, did you notice that your placard says model: 220??

[miket]

Aug 14, 2018 19:40:17 GMT -6 freezerfiller said:

Aug 12, 2018 15:35:07 GMT -6 miket said:

This is from my 95 230WA

I get 36-38 mph with a 150 depending on conditions.


There is one of those deck boats sitting in a field not far from my house

Mike, did you notice that your placard says model: 220??

Not until I took the pic for this thread.
Weird

[fiddyfish]

I got my prop re-hubbed. It really needed it. See the photo of my old hub.



They also filed the blades, balanced, and painted it. $98. I put it on and ran it but they said to go easy for the first hour, so I still haven't been able to see if it makes a difference in speed, but first indications are that there will be little change ( 10 mph at 3000 rpm). It's a 13.75 dia x 17 inch pitch stainless propeller. I am now thinking I need a different pitch.

Miket - do you know what diameter and pitch prop you have? I have a 175hp Yamaha and can only get to 22-23 mph on my 1995 230 WA.

By the way, I had a new decal made for my boat to show the correct model and sizing. $22 from replacementdecals.com

[miket]

Aug 15, 2018 11:16:08 GMT -6 fiddyfish said:

I got my prop re-hubbed. It really needed it. See the photo of my old hub.



They also filed the blades, balanced, and painted it. $98. I put it on and ran it but they said to go easy for the first hour, so I still haven't been able to see if it makes a difference in speed, but first indications are that there will be little change ( 10 mph at 3000 rpm). It's a 13.75 dia x 17 inch pitch stainless propeller. I am now thinking I need a different pitch.

Miket - do you know what diameter and pitch prop you have? I have a 175hp Yamaha and can only get to 22-23 mph on my 1995 230 WA.

By the way, I had a new decal made for my boat to show the correct model and sizing. $22 from replacementdecals.com

I'm pretty sure you will see an improvement with the new hub. If not you have other issues.
I currently have a 14.75 x 15 stainless steel Enertia.

My old Evinrude had a 15 x 17 aluminum prop on it when I got it and I would get 36-37 mph at about 5200 rpm.

[freezerfiller]

That's great that they got it done that fast! I thought it would take a month. That's why I suggested getting a spare. I would wait and run it wide open. The fact that it was the same at 3000 rpm doesn't mean that the old one slipped until it got more stress than that.