boat prop isn't on this site???

[brownhunter]

I have 25hp Mercury bigfoot. I tried to look up on this site, and it doesn't exist? Whats the deal with that? Boat store wants a new one for 160 bucks and on ebay i see some for 6obucks but I am not sure if it is the rigth one on ebay! Suggestions?

 

[wired247]

Re: boat prop isn't on this site???

what year and SN#

 

[jestor68]

Re: boat prop isn't on this site???

Is it a 1999-2005 Mercury 25 hp 4 stroke Big Foot with a 13 tooth spline?

If so, it's right there in the prop section.

 

[steelespike]

Re: boat prop isn't on this site???

There are many listed for a 4 stroke big foot.

 

[brownhunter]

Re: boat prop isn't on this site???

4885632a4011p is the # on the prop. When I 1st posted for some reason the prop search thingy wasn't working now it is. I was getting 0 results for my prop search.

My next question is can I change my prop pitch to go faster? My buddy said his dad had to do it to get his boat to plane better. I have a 15ft Alum klamath and it won't plane unless someone is on the bow.

 

[jestor68]

Re: boat prop isn't on this site???

That looks like a quicksilver part number. The Mercury part # is QA2070X for the black diamond 11" pitch.

You will likely need to drop pitch to the next lower ( 9" ) size to get going.

 

[steelespike]

Re: boat prop isn't on this site???

If you answer the questions in the stickys at the top of the prop forum we can tell better if you have a setup problem or simply the wrong prop.

 

[brownhunter]

Re: boat prop isn't on this site???

I found this on Ebay, http://www.ebay.com/itm/Solas-Prop-..._Accessories_Gear&hash=item2ec243754b&vxp=mtr

According to the add Everything is the same as the one I have that's damaged, except this ebay prop is a 11.5inches. My damaged prop is 10inches. Would it be bad to put this 11.5in on my motor?

 

[steelespike]

Re: boat prop isn't on this site???

We still don't know anything about how your setup works other than an indication of difficulty planing.
If your having trouble planing and we assume your setup is right you need less pitch We can't tell how much less without the info requested. With small motors a 1" pitch change can be very effective.
Have you actually measured your prop.10" while possible seems small for an 11" pitch.
Measure from center of the bore to the tip of a blade and double it.

 

[brownhunter]

Re: boat prop isn't on this site???

I measured it, it seems more like 10.5 inches.

One guy told me, "If you drop the pitch of the prop, it will give you more low end propulsion. Your boat will also have higher RPMS as well as a overall loss of speed on
the top end. "

 

[jestor68]

Re: boat prop isn't on this site???

I would be interested in knowing what model 15 ft Klamath boat you have. They make several different 15 ft boats.

Some weigh 300 lbs, while some weigh 500 lbs. How can we guess what prop is appropriate if we don't know what boat we're talking about.

 

[jestor68]

Re: boat prop isn't on this site???

I would be interested in knowing what model 15 ft Klamath boat you have.

No idea how this was posted twice.

 

[steelespike]

Re: boat prop isn't on this site???

I measured it, it seems more like 10.5 inches.

One guy told me, "If you drop the pitch of the prop, it will give you more low end propulsion. Your boat will also have higher RPMS as well as a overall loss of speed on
the top end. "

Very basically that is right but the results of a lower pitch would depend on the previous performance.
While not usual it is possible a reduction in pitch could increase speed.

 

[jestor68]

Re: boat prop isn't on this site???

I found this on Ebay, http://www.ebay.com/itm/Solas-Prop-..._Accessories_Gear&hash=item2ec243754b&vxp=mtr

According to the add Everything is the same as the one I have that's damaged, except this ebay prop is a 11.5inches. My damaged prop is 10inches. Would it be bad to put this 11.5in on my motor?

Only the diameter is a little different. The pitch is still 11". So, yes, that would work fine on your motor; provided 11" of pitch is appropriate for your boat/motor combo.

However, if it's having trouble getting on plane with the 11", it looks like a reduction in pitch is in order.