Props and low water...

Show us your boat mods!

Props and low water...

Postby pyro225 » Sun Oct 29, 2017 2:31 am

Hi all on my 1900 the river we are on has a few shallow spots 2.5ft worst times of the year. The river base is very soft clay with a little sand. There are also reads in it sometimes.

Ok now the question for the past 3yrs I’ve run stainless props and they will churn through it no problem (only small high spots) there is never rocks etc in it.

Anyway I got a comprop and it snapped a blade I’m guessing due to a combination of the above. I now want a new 4/5 blade and wondering if an alu prop would be able to churn the odd bit of clay or if it will snap the blade and I will need an ss...

Any ideas?
2005 Regal 1800 LSR 1.7DTI
pyro225
 
Posts: 142
Joined: Wed Jul 22, 2015 3:16 pm

Re: Props and low water...

Postby cbsmith » Sun Oct 29, 2017 8:29 am

Aluminum will bend the blades but they won’t snap off, but the prop will still be damaged.

Stainless steel won’t be damaged as easily but if you did hit something hard it can damage other parts of the outdrive.

I think it is a bad idea to be running where you know it is that shallow and knowing you are pushing your prop through the ground at the bottom. Either trim the drive up some, paddle through it, or find another idea to boat. Sooner or later you will cause significant damage to your boat.
2014 Regal 1900
2010 Sea-Doo GTX 155
2007 Sea-Doo Wake 215
cbsmith
 
Posts: 407
Joined: Sun Nov 02, 2014 4:21 pm
Location: New Brunswick, Canada

Re: Props and low water...

Postby On Holiday » Mon Oct 30, 2017 6:27 am

My wife doesn't like it when we are in less than double digit numbers.
2006 Regal 2400
On Holiday
 
Posts: 611
Joined: Thu Jun 03, 2010 8:38 am

Re: Props and low water...

Postby aviator1 » Mon Oct 30, 2017 12:52 pm

I give you alot of credit, if I pick up a single nick on my prop...I wonder what I did wrong and I often spend my time boating just making sure there is enough water under me so my outdrive doesnt hit anything.
I am thinking with your boating, you should explore a jet type drive system.
Stainless will be very unforgiving and damage will come, only a matter of time.
2017 Regal 1900 ES Gen 5
2013 Regal 1900
2006 Sugar Sand Tango
2004 Sugar Sand Tango
1996 Regal Sebring 195
Cessna 152
Pipper Archer
Life is too short not to live it...
User avatar
aviator1
 
Posts: 455
Joined: Thu Mar 20, 2014 11:05 am
Location: Lake George, NY

Re: Props and low water...

Postby pyro225 » Fri Apr 20, 2018 3:25 am

wow long pause sorry - when i am going through the shallow stuff it is 4mph max not full tilt or anything the river is usually 1.5m min depth but occasionally if you go slightly off centre you hit the sand/clay bed not sure if that makes any difference
2005 Regal 1800 LSR 1.7DTI
pyro225
 
Posts: 142
Joined: Wed Jul 22, 2015 3:16 pm

Re: Props and low water...

Postby fatmattyd » Fri Apr 20, 2018 8:11 am

I suppose I'd tend toward what others have said... avoid contact if at all possible.

That said, it was mentioned that aluminum shouldn't break off, but will bend more easily than a stainless prop would. However, many operate with the notion that an aluminum prop is (intentionally) the weakest link in the outdrive, and easiest/cheapest to repair if you were to hit something solid.

If you are comfortable with the risk of damaging other components, you could certainly run a stainless prop, and I'd expect that it would hold up better than an aluminum would.

Plenty of folks run stainless props all the time. It just seems like your usage case is a bit special in that you're expecting to hit bottom occasionally. Seems like a jet drive boat would make more sense, but it's not necessarily easy to just swap boats.
fatmattyd
2013 Regal Owners MULTIPLE Donator!
2013 Regal Owners MULTIPLE Donator!
 
Posts: 165
Joined: Mon Aug 22, 2011 1:11 pm

Re: Props and low water...

Postby pyro225 » Fri Apr 20, 2018 4:50 pm

I’d love a jet but I have to go through a couple of 4mph no wake Zones and always thought a jet was terrible going slow?
2005 Regal 1800 LSR 1.7DTI
pyro225
 
Posts: 142
Joined: Wed Jul 22, 2015 3:16 pm

Re: Props and low water...

Postby ImRich » Fri Apr 20, 2018 5:03 pm

I don't have a small boat, but with this being said, I'd never want my I/O or props hitting anything, soft sand, soft mud etc.

Trim up your drives, even if you are going slow, you can do damage, and what if there is a rock or something just under the surface? It will get expensive, very quickly.

Also, stiring up silt, mud, sand and other things, even when going slow, you will suck that into the cooling water intake, and this will wear out your cooling water impeller. Over time you may start having over heating problems.

Go slow, lift up your drive, but not too far, read the manual on the limits of lifting the I/O when under power.

Someone else that has shallow water experience can give you more advice, but I'd try not to let my prop touch anything if possible.
Rich
2005 - 3560
Unbelievable!
NH
ImRich
 
Posts: 988
Joined: Sat Apr 13, 2013 1:06 pm
Location: NH USA

Re: Props and low water...

Postby Chris_in_Texas » Fri Apr 20, 2018 6:03 pm

While dinging up the prop is bad, just keep in mind where your water pickups are, and don't let those get clogged up or it will be a very bad and expensive day.. :mrgreen:
Thanks, Chris

2012 - Regal 35 Sports Coupe - Twin VP 5.7GiCE-300-P - DP-SA - SOLD
2011 - Sea-Doo RXT260s - 1503HO Rotax 4TEC
2007 - Regal 3060 - Twin VP 5.0OSi - XDP - SOLD
2002 - Crownline 230BR VP 8.2GSiPEFS - DP-SM - SOLD
User avatar
Chris_in_Texas
2013 Regal Owners MULTIPLE Donator!
2013 Regal Owners MULTIPLE Donator!
 
Posts: 4395
Joined: Wed Mar 05, 2008 8:56 pm
Location: Frisco, TX (DFW Area)

Re: Props and low water...

Postby pyro225 » Sat Apr 21, 2018 2:04 am

Sure I should have said where I see it’s shallow I obviously do trim up it’s only the unexpected bits, I have closed cooling system luckily so the junk won’t get in the engine, I’ll have to be careful
2005 Regal 1800 LSR 1.7DTI
pyro225
 
Posts: 142
Joined: Wed Jul 22, 2015 3:16 pm

Re: Props and low water...

Postby cbsmith » Sat Apr 21, 2018 6:14 am

The mud and silt can still plug up your heat exchanger.
2014 Regal 1900
2010 Sea-Doo GTX 155
2007 Sea-Doo Wake 215
cbsmith
 
Posts: 407
Joined: Sun Nov 02, 2014 4:21 pm
Location: New Brunswick, Canada

Re: Props and low water...

Postby Seven » Tue Apr 24, 2018 10:10 am

Another out of box idea is get a trolling motor for the shallows. They make some cool trolling motors with remote steering and also make ones that attached to the outdrive of the main engine. If you destroy the plastic trolling motor prop its not costly.... Plus if you fish you got a trolling motor now. :D
--2002 3880 Regal Flybridge | Twin Merc 8.1HO| **Seven**
--2003 AB 13 VST Console Inflatable | Tohatsu 40hp TLDI **Phish'n ski**
--310 Mercury Inflatable | 1982 9.9 Johnson
Seven
 
Posts: 73
Joined: Mon Nov 21, 2016 9:30 am
Location: Deep River CT

Re: Props and low water...

Postby Me2660 » Tue Apr 24, 2018 11:12 am

Below is a link to a composite propeller with replaceable blades. I use to use them on an outboard fishing boat, worked good.

https://www.compositesworld.com/article ... ble-blades

Mark
2001 Regal 2660 Commandore
User avatar
Me2660
 
Posts: 45
Joined: Mon Oct 13, 2014 1:06 pm
Location: Chicago

Re: Props and low water...

Postby SGilbert » Tue Apr 24, 2018 3:42 pm

Here's another link.
I had one on my last boat: 21' Wellcraft. Loved it!
https://piranha.com
Steve
"L'Chiam"
'00 Regal 2660 (2765) T/Merc 4.3's
User avatar
SGilbert
2012 Regal Owners MULTIPLE Donator!
2012 Regal Owners MULTIPLE Donator!
 
Posts: 951
Joined: Sun Jan 06, 2008 11:50 pm
Location: South Bend, IN; slipped in Michigan City, IN

Re: Props and low water...

Postby Mischief Managed » Wed Apr 25, 2018 6:53 pm

Go with SS. It will be much better than aluminum and after the third hit will have paid for itself.
Raymond NH, USA

Mischief Managed
2000 2550 LSC
7.4 MPI Bravo 3
Mischief Managed
 
Posts: 833
Joined: Fri Jun 13, 2008 11:03 am
Location: Raymond, NH, USA

Re: Props and low water...

Postby pyro225 » Thu Apr 26, 2018 1:19 pm

Hi all thanks - last poster are you saying that if I AVR three damages it will pay for itself?

Another point I meant to say is I got the flotorq system which is meant to break if you hit something to protect the drive or am I wrong?

Cheers
2005 Regal 1800 LSR 1.7DTI
pyro225
 
Posts: 142
Joined: Wed Jul 22, 2015 3:16 pm

Re: Props and low water...

Postby fatmattyd » Fri Apr 27, 2018 9:58 am

I think that's what he's saying.

A hit on an aluminum prop could mean replacement. Considering the cost of aluminum props vs. stainless, after 3 hits using aluminum props you'd likely have paid for a stainless prop.

The flotorq hub is meant to be the weak link in the system, and is supposed to spin a replaceable delrin sleeve and save the drive and possibly the prop.

All that said, I would recommend keeping a spare prop on board, along with all the washers, nuts, cotter pins, etc.
fatmattyd
2013 Regal Owners MULTIPLE Donator!
2013 Regal Owners MULTIPLE Donator!
 
Posts: 165
Joined: Mon Aug 22, 2011 1:11 pm

Re: Props and low water...

Postby pyro225 » Sun Apr 29, 2018 4:57 pm

Ok well I have the ss prop and a spare hub might just get a cheap too
2005 Regal 1800 LSR 1.7DTI
pyro225
 
Posts: 142
Joined: Wed Jul 22, 2015 3:16 pm


Return to Boat Modifications

Who is online

Users browsing this forum: SGilbert and 19 guests