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Help with Prop - - - 19 messages. Showing 1 through 10. Go to page: 1   2 
WebDude
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Daily Subscription Msg 1 Posted: 01:11 PM 06/08/05 (CST)
Okay,

I am bummed. Got a new 115 horse Honda four stroke with under 20 hours on it and I dinged the prop. Seems to still run okay. I cannot tell the difference. No vibrations, no loss of mph, etc. In fact, it looks like the prop just bent a little and there is no loss of metal as far as I can tell.

So, I went on-line to see if I could find a new prop. I am thinking of using the dinged one as a backup.

Boy am I confused now!!! Talk about selections, blades, metals, pitch, yada yada yada. I think I need expert advice on this.

Are there any reputable dealers in town that I could talk to about getting a new prop? I have found aluminum props on-line for as little as $90.00. I am not a rich guy and price is a concern, but I also don't want a piece of crap either. I understand you can get different performances from different props. I just don't want to get ripped off and need something that will work as well as what I have (which I assume is a OEM standard prop that comes with the motor). I think If I go to the dealer and buy it from Honda, I am going to pay a lot more then if I bought it from a prop manufacturer.

Any ideas???

Thanks



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Scumfrog
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Daily Subscription Msg 2 Posted: 01:35 PM 06/08/05 (CST)
Just make sure it's the right prop for your motor. You need to check the pitch angle and make sure you motor will turn it and get your boat up and planning right. We run into this problem with my sister-in-laws speed boat when we put a new prop on it. The boat wouldn't plane out and it sounded like it was going to fall apart.



BigBite
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Daily Subscription Msg 3 Posted: 03:19 PM 06/08/05 (CST)
That doesn't sound good...








WebDude
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Daily Subscription Msg 4 Posted: 03:20 PM 06/08/05 (CST)
Any place I could go to take the guesswork out of all this?



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PierBridge
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Daily Subscription Msg 5 Posted: 02:44 AM 06/09/05 (CST)
Of course you would have increased performance, Hole shot, Top end, and handling with a Stainless Steel Prop and with that comes added expense.
So you say your boat runs okay I don't have a Honda 4 stroke but I am guessing the max RPM range is around 5600-5800 it's in your manual if your getting close to that at WOT and your happy with your hole shot with 3 people plus full gear, gas, you could just get another aluminum prop that way you have piece of mind that you have a spare and it won't kill the pocket book like a Stainless Prop.

I have a Mercury outboard, I use Supreme Marine in Mpls for my boating needs most Marine/Prop business's will let you Demo Stainless props just so you don't wreck them you can return them and try another until you get your desired results "correct RPM range".
Not sure how Honda does thing's but I would start with the place you purchased your boat or any Honda dealer or any Prop dealer and they can steer you in the right direction. If you find something you like you would not be committed to the Dealers price and you could return it and research the price online or through other means.

Pierbridge


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WebDude
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Daily Subscription Msg 6 Posted: 09:23 AM 06/09/05 (CST)
PierBridge,

Thanks for the info.

According to the docs I can find on the BF115 (Honda), WOT RPM is 5000 - 6000 and the gear ratio is 2. Not really sure what this means.

I guess I will give Supreme Marine a call and see what they say.

Appreciate it!



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PierBridge
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Daily Subscription Msg 7 Posted: 01:33 PM 06/09/05 (CST)
It is a bit confusing.
RPM's or revolutions per minute in lay-mens terms are how fast your Engine crankshaft is spinning which in turn affects how the prop spins.
You have a 19 pitch aluminum prop if you go to a smaller Aluminum prop say a 17 pitch your motor would spin it faster creating a little better hole shot and a loss of speed at WOT "full throttle" and creating higher RPM closer too or over your max RPM range for your Honda of 6000 RPM's.
So if you went to a bigger prop say a 21 pitch you would lose hole shot being the 21 pitch prop is bigger and harder to turn but you may gain some top end speed.

So the next time you take the boat out preferably with 3 people full gas and gear get the boat up to WOT "full Throttle" you will need to trim the motor up so the motor is near level and check your Tachometer it should be around 5600 RPM's just a guess make a note of the RPM's and also check your speed GPS would be best if not just use your boat Speedo.
The RPM's with that along with the speed will give us/Marine dealer the general info we need to help you better.

Stainless steel props are very good they are made better/stronger creating a more consistant prop less flex, slip or drag in the prop the downside is COST, Stainless props are more durable then a Aluminum prop when the stainless props are Damaged it's real expensive to fix.
And being that stainless steel prop is much stronger then Aluminum prop when object's like rock piles, sand bars, half sunken logs are hit the aluminum prop will break away easier and be fixed cheaper the stainless steel props which are much stronger have been know to take your entire LOWER UNIT with it.


PierBridge

In a nutshell we need your RPM's and MPH at WOT "wide open throtle"

This message has been edited by PierBridge.





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WebDude
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Daily Subscription Msg 8 Posted: 02:33 PM 06/09/05 (CST)
This all very good info to know. Thanks!



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walleyewacker
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Daily Subscription Msg 9 Posted: 08:05 PM 06/13/05 (CST)
For about $40 you can get it fixed.
Fireball
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Daily Subscription Msg 10 Posted: 09:16 AM 06/14/05 (CST)
Webdude

What size is your current Prop? And yes that motor is to run WOT @ 5500 - 6000 RPM's not sure what boat you have it on though. what is your GPS Speed at WOT?

Thanks
Help with Prop - - - 19 messages. Showing 1 through 10. Go to page: 1   2 
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