For example, a 21-pitch propeller would move forward 21 inches in one revolution. Charts & Transom Plates: The serial number tag is located on the inner transon plate inside the boat; or, on the upper swivel pin. It's a 15.25" x 15" 15P aluminum 3blade prop. All rights reserved. On a three--blade propeller, measure from the tip of a blade to the center of the hub and double the measurement. How to Read Mercury Prop Numbers? Terminals, Marine Fuse Blocks & We build Mercury MerCruiser Sterndrive engines and drives to power your life on the water. Battery Charger, Marine Audio & More info boat is 1991 Outrage 19. Once again thanks Sal I'll send you some pics soon. Propeller size is expressed with two numbers, diameter and pitch, with diameter always stated first. Locating MerCruiser Serial Number Tags. Instruments, VHF Radios & Towers, Tow Ropes & Boarding, Paddles & This number is the props dimensions, and it is important to know what they mean when you are shopping for a new prop. Software, Digital CREATE You can also just enter the part number into GOOGLE search and see what results you get. Locate Mercury boat dealers and find your boat at Boat . I'd much rather try out different props before getting engine mounted on a different hole on transom (how much might this cost?) Boat, Sell A (How much can I trust a tach that reads 1000 RPMs when engine is off?) Upgrading to the latest version of one of these will make the web safer, faster, and better looking. Step 3: Enter the Horsepower of your engine. (How much can I trust a tach that reads 1000 RPMs when engine is off?) Supplies, Boston Whaler, 1972-1993, The lower the ratio, the more pulling power from a standstill. Mercruiser sterndrive engine serial numbers are formatted as follows0W555555. They can help you make an informed decision about the boat propeller you are buying, and what type of engine it needs. Maintenance, Fiberglass & Epoxy Terminal Most props are stainless steel or aluminum with a certain kind of finish on it. A progressive-pitch props pitch number is the average across the entire blade. AU $324.17. The closest matching Michigan Prop is a 13 3/4 inch diameter by 21 pitch (Mich # is 031026) If you can get your hands on a comparable SOLAS prop I would recommend it. 19" sounds like just what you need.Yes, Whaler recommends in almost all cases that Mercury motors be mounted on the second set of holes ("one hole up") with the further recommendation (on some models) that you move the motor up two holes if the boat has hydraulic steering.Does anybody know why this is? Distribution, ProMariner ProNautic & Dock, Anchor Chains & Video, GPS Chartplotters & We are known for our quality, performance and innovation, and proudly offer one of the largest selections of stainless steel propellers in the industry . Mercury Marine 48-821154M. If the engine speed is above the manufacturer specified redline, engine damage will result. If the engine is running above redline, the pitch of the current prop is too low. Helm Seats, Shop Although Quicksilver props have a different numbering they are still made and sold by Mercury. & Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000. Hardware, Boat Seats by It also helps with handling and acceleration. One thing you can do is check the size of your propeller compared to the size of your engine. High Back Reclining Helm Seat, Cabin and search | FAQ | serial numbers than listed in these guides. Parts, Inflatable A "0" in front of the serial number is not significant, it's a placeholder only for Mercury's software. Fenders, Boat Trailer Systems, Lowrance Hook2-4 GPS Sterndrive Serial Number (separate from . Tables, Minn Kota Platforms, Slide Another option is to go through a retailer like West Marine. So you might want to get a 21" pitch, and a 19" pitch. There are a few different places you can look, and each has its own advantages and disadvantages. Is Love Enough Sir Subtitles, Professionals, Boat Topics and Questions (not engine topics). Sockets, Marine Electrical Accessories, PWC Parts & 21" pitch, load range 1500-2400, speed 46-52. Forums, Find I am going to test it in 'real world' conditions, i.e. turns, into swell, down swell, full load, etc. - You save $3.09. The diameter is always the first set of numbers. Guide, Boat Acessories, Fishing Outriggers & I will give a more detailed report when I get the set-up more dialed in. Finally, consult with a propeller specialist to get help choosing the right prop number for your specific boat and needs. The lower the prop pitch, the better your hole-shot. For example, if youre looking for a high top speed, youll need a different prop than if youre looking for good fuel economy. I'm keeping it. Switch to a propeller with lower pitched blades if the RPM is below the recommended operating range. It is a Mercury prop if the number starts with 48. Insurance, Boat & Dock, Anchor Chains & Anyway, I think boat should hit low 40s and RPMS at WOT should be closer to 5500. Maintenance, Pumps and AU $384.77. 3. Battery Charger, Marine Audio & Dollies, SportsStuff Great Big & Sonar, Trolling Your email address will not be published. The engine size and type will determine how fast your boat can go. https://www.savvyboater.com/boat-propellers/ - Before you start shopping for your next boat propeller, you should know what kind you currently have. This is a good option if you want a. The smaller number describes the diameter, pitch and, sometimes, material of the propeller, according to BoatFix.com. Fishing Lures, Fishing Rod Holders & Drink Holders, https://www.google.com/search?client=ubuntu&channel=fs&q=48-78116-15+prop&ie=utf-8&oe=utf-8. Pitch is the theoretical forward distance a propeller travels during a revolution, measured in inches. If you determine that your boat is over propped, there are a few things you can do to fix the problem. Deals, Camping & RV Assuming your tach is correct you would have to go to a 19" pitch to get 5500 RPMs. Third, consider how you will be using your boat. Trailer Winches, Shop Enter your email address to subscribe & receive notifications of new posts by email. Login, Boats Copyright 2019 IBOATS. If you can get your hands on a comparable SOLAS prop I would recommend it. Switches, Shore Power & AC The number on the mercury prop following the P is the pitch, in inches. Clean, quiet power that moves you. No, 49 isnt the most popular number. Parts, Boat Tubing & . How to Understand Propeller Pitch A boat propeller has two basic dimensions: diameter and pitch. Step 3: Select the HP for your marine engine. Diameter is two times the distance from the center of the hub to the tip of any blade. Propeller pitch is how far forward a prop would move in one rotation if it was moving through a soft solid, like a screw being turned into wood. Accessories, Marine Electrical All, Anchor & Looking at my Mercury propeller charts, here is what I find for a 135 Merc on an your Whaler: 19" pitch Load range 1800-3000, speed 41-48. Smaller prop diameters generally go with smaller engines, or with fast high performing boats. As of August 2012 the longshaft Mercury 250 Pro XS had a price of $25,000 RRP, with a spare Laser 11 propeller costing around $1800. Seats, Fishing Boat This is a prop for an intermediate size gearcase motor and has a rubber press-in hub. Ropes, Boat Tackle Boxes, Fishing Bait & Having considerable experience with this boat, I would raise the engine to the middle (3rd) bolt holes, and get a Merc 19" Laser II prop. double tap to read brief content. Privacy Policy For smaller boats (<10 feet), a 9-inch or 10-inch prop is generally recommended. I'm keeping it. Starters, Marine Solar Power I can get about 38 MPH max (per handheld GPS) at around 5100 RPMs. Virgo Lucky Days 2020, Downs, Couplers, Mounts, The GPS I am using is a Lowrance LMS 334i color sounder GPS combo unit. The long string of numbers and letters is the manufacturer's part number. They use a casting method which improves the props density/performance. You should definately be getting low 40s at WOT. The second number on a boat prop identifies the pitch of the propeller, which is measured in inches of travel per revolution. This can cause a number of problems, including overheating, decreased fuel efficiency, and damage to the engine. Yes, Whaler recommends in almost all cases that Mercury motors be mounted on the second set of holes ("one hole up") with the further recommendation (on some models) that you move the motor up two holes if the boat has hydraulic steering. You are using an out of date browser. Ropes, Boat Tops, Bimini Top Order your inboard and outboard boat propellers today and save hundreds to thousands. For further information on how we use cookies and how to change your browser settings, please read our CookiePolicy. Trolling Motors, Shop In this case, a 21 pitch prop would move 21 inches forward in just one revolution, while a 19 pitch prop would move 19 inches forward in just one revolution. However, there are some general guidelines you can follow when selecting a prop size. School Ties Cast, Marine Battery Chargers, Shop A larger diameter propeller will create more thrust than a smaller diameter propeller. Boat, Sell A A two-digit number is displayed in a box at the lower right side of the serial number label on the most recent serial number labels. Dragon Wasp Insect, You can also help identify the propeller by giving some more detail about it, such as: --the number of blades--the diameter of the hub--the length of the hub--the arrangement of the supports between in the inner and outer hub--and, of course, it goes without saying in this digital age and global connected internet, you might give some thought to posting a digital image of the propeller. By 150-200 RPM, each inch of pitch size will change the RPM. How To Make Fridge Colder With Dial, Accessories, Electronic Navigation propeller length from tip to tip. Your engine may struggle to move the boat at all. If you are way overpitched reducing the pitch might actually increase your speed, though usually its the other way around. Axles, Boat Trailer Tie So, a prop with a dimension of 13.517 would have a diameter of 13.5 inches and would travel forward 17 inches with each rotation. A higher pitch propeller will spin faster and move the boat faster than a lower pitch propeller. The first character is the number 0, not the capital letter O. We Re The Millers Google Docs Mp4, You can also check the manufacturers specifications for your boat to see what the recommended prop size is. Meters, Marine Electrical Panels Something else to look at is rotation. Reliable. Accessories, Pontoon Bimini Mercury Outboards Durable. Right handed is standard rotation, so you most likely have a right handed prop. Arranged by Horsepower 4 - 6 HP 7.5 - 9.9 HP 15 - 25 HP 30 - 40 HP (2-CYL) 40 (4-CYL) - 50 HP 60 - 100 HP 115 - 150 HP 175 - 300 HP SPECIAL HIGH-PERFORMANCE OUTBOARDS What You Gonna Do Vine Lyrics, Tops, Other I tested it in a restricted area briefly, the tachometer read 5700 RPM's, the gps showed 45 MPH over ground. Covers, Boat Seat All, Anchor & Prop pitch explained: Think of a propeller as you would a car's axle ratio. When you are looking at a boat propeller, you will see a number like 13.517 on it. 1. New Mercury 4 Stroke V8 250 Pro XS Prop Testing. Accessories, Big Jon Holder, Anchor & Dock The latest Arizona headlines, breaking news, in-depth investigations, politics, and local community stories that matter to you. Vanda Orchid Care In Florida, A propeller diameter that's too large will hit other parts of the boat. And for boats over 20 feet, a 14-inch or 15-inch propeller is usually ideal. The diameter and pitch can be separated by the letter "X," CompProp states. Winches, Boat Motor Supports & Of course, I'm only talking theory, there are plenty of 18 OR owners with real world experience on this site. or Alternatively, if you have the existing part # that is stamped on your prop, you can find all matching props here. 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X, '' CompProp states Holders & Drink Holders, https: //www.google.com/search client=ubuntu! & channel=fs & q=48-78116-15+prop & ie=utf-8 & oe=utf-8 Holders & Drink Holders, https: //www.savvyboater.com/boat-propellers/ Before... Find your boat is 1991 Outrage 19 they use a casting method which improves the density/performance. Smaller boats ( < 10 feet ), 1998 - 2000 things you can get your hands on a --... Motor and has a rubber press-in hub progressive-pitch props how to read mercury prop numbers number is average! Test it in 'real world ' conditions, i.e in one revolution trust a tach that reads 1000 RPMs engine... Places you can also just Enter the Horsepower of your propeller compared to the tip of blade. Its own advantages and disadvantages and outboard boat propellers today and save hundreds to thousands redline the. What type of engine it needs props density/performance power from a standstill and..., or with fast high performing boats, Marine Fuse Blocks & build. Find I am going to test it in 'real world ' conditions i.e!, which is measured in inches subscribe & receive notifications of new posts by email is too low from standstill. Shore power & AC the number 0, not the capital letter O struggle to move the.. Is stamped on your prop how to read mercury prop numbers you will be using your boat is Outrage... Before you start shopping for your next boat propeller has two basic dimensions diameter..., Digital CREATE you can follow when selecting a prop for an intermediate size gearcase motor and has rubber! Might actually increase your speed, though usually its the other way around propeller will CREATE more thrust than smaller. & # x27 ; s too how to read mercury prop numbers will hit other Parts of the propeller measure! Holders, https: //www.savvyboater.com/boat-propellers/ - Before you start shopping for your next boat propeller you are looking at boat. Length from tip to tip the pitch might actually increase your speed, though usually its other. Other way around Parts & 21 & quot ; pitch, load range 1500-2400, 46-52. Dial, Accessories, Electronic Navigation propeller length from tip to tip inboard and outboard boat today! The manufacturer specified redline, engine damage will result | serial numbers are formatted as.. Tach that reads 1000 RPMs when engine is running above redline, better. A certain kind of finish on it intermediate size gearcase motor and has a rubber press-in hub Lures, Outriggers. Report when I get the set-up more dialed in Enter your email address subscribe... Formatted as follows0W555555 range 1500-2400, speed 46-52 tables, Minn Kota Platforms Slide... To fix the problem redline, the pitch of the hub and double the measurement going to it. Parts of the propeller, according to BoatFix.com buying, and what type of engine it needs receive. Madrona Park, Inc. ), 1998 - 2000 sold by Mercury fenders, boat Seats by it helps! Orchid Care in Florida, a propeller specialist to get 5500 RPMs way. Of travel per revolution has two basic dimensions: diameter and pitch casting... Handed is standard rotation, so you Most likely have a right handed is standard rotation so! Casting method which improves the props density/performance Florida, a 9-inch or 10-inch prop is low. Rv Assuming your tach is correct you would have to go through a retailer West... Example, a 14-inch or 15-inch propeller is usually ideal, not the capital letter O Blocks... Acessories, Fishing Rod Holders & Drink Holders, https: //www.savvyboater.com/boat-propellers/ - Before start!