I then used more marine tex to fill in any gaps and make a smooth transition from the nosecone to the case. This is the motor that started it all and has a showcase full of trophies and awards to prove it. Chet, did you block off you normal water pickups on the sides of the case? Replacement for Mercruiser's Bravo One lower unit replace 1992 and up with the oil passage. I spent about 3 hours trying to measure everything so it would come out right. Is there any guidelines for how much surface area to leave open? Buy a transom pickup from Bobs machine shop. Features & Benefits. Model #||Application|. I know the prop is very important, but does anyone have some input on the bobs low water pickup? If you are smaller than 60hp, please call first, as the cone will require modification to work, and you might perfer to send in for factory installation. Registering only takes a few minutes and you can do so by CLICKING HERE. The advantage the Sport Master had over earlier performance gearcases was the torpedo shape which improved high speed dynamics, water pickup design that helped with water pressure, and flow around the gearcase.
In developing the new DF350A, Suzuki Engineers started with a clean sheet of paper and considered many factors for this design. This four stroke engine is a clean runner and certified with a 3-Star Ultra-Low Emission rating from the California Air Resources Board (CARB) and has also met the EPA 2010 standard. Home made low water pickup. 50% more cooling capacity. BOB'S MACHINE SHOP BIG FOOT BRAVO Nose Cone Kit W/ Low Water Pick-Up - DUAL HOSE. Any negatives to tapping into the factory water pick up? A picture would be nice but like I said.... We are a community of boat lovers and Hydrostream enthusiasts here; we are happy to help anyone. Beyond the low water pickup, there is also the consideration of how the gearcase itself will respond to being run higher out of the water, and the faster you go, the higher it will need to be. 1982 Hydrostream Vamp. I'll buy one off ya. Another factor to consider is when the water inlet is too far up the side of the gearcase, on the side of the propeller down stroke, the inlet actually disrupts water flow to the prop. The beers last are fogging up my brain today. Thank you for visiting our forums, and please register.
These lower units, such as the Mercury Racing Sportmaster are reserved for boats that exceed 85-90MPH. Nose cone test by Bass & Walleye Magazine: Nose Cone Shootout. To assist with this process, the manufacture places low water pickups solely on the nose cone. 4 200, 130 shot of NOS. The nut wouldn't come off of mine and now it's open circuit. Ya it took some time, I had no idea how to do it so I just winged it and it turned out has held to 85 so far. It won't work for the merc low and mid pickup unless you somehow block off the mid pickup. Easy installation and alignment. No need to be putting drill bits into my gears! BOB'S MACHINE SHOP BRAVO Nose Cone Kit (89 and Earlier). Five inlets create less chance of stoppage than anything now on the market.
Did you plug the top two, and join the bottom two, or is that 4th joined with the newly drilled hole? Gain top end performance with Teague Custom Marine add on drive lower nose cones, available in low water and mid water pickup configurations. The parboiled leach was very much like a rubber stopper and completely blocked the cooling system. Next project is to convert from the clamshell cowl to a later model opti that I have on the shelf.
Can be modified so that it will fit 1988 to 1991. Then those 2 holes were connectedJohn E. 02-12-2006, 04:51 PM #8. My initial thought was to use the intake for a wash down hose. It is no longer economically practical to continue building low pick-ups for outboards. That was the easy part now at this point you need to drill a large hole and tap it under the waterpump. Installed new exhaust/cooling gaskets, head gasket, water pump housing, impeller, gaskets, plate, water pump base housing/oilseal housing..... Now it won't draw water unless hose fed on start and as it warms up it starts to blow exhaust out of the water pickup in the nose cone. This is where the lower unit performs it's best.
DRIVES, TIE BARS, TRIM RAMS, GIMBALS, EXTENSION BOXES, SURFACE DRIVES & DRIVE ACCESSORIES. Low water pressure issues at wide open throttle? For large number of consumers, this is not a problem. A smooth oval shape water inlet is the most efficient, allowing water to change direction, as opposed to a flush round inlet that forces the water to change direction. Contact: Looking good. These are ideal for elevated, semi surfacing X-dimensions. I left the screen in. I want to make sure I get it right. The pic that chinewalker has looks like only the equivalent of two holes is open. So potentially someone has been down this road I'm on and can spot some errors in my system. Business Development General inquiry. Crescent shaped for superior and handling. Epoxy is required to install. I have the same motor as you only '86 it has the small gear case.
Location: Sterling Heights Mi. The intakes "suck" where you put them, so if in shallow water you can block the lower ones, but the top will always remain open. IDLE or WOT, there is no in between!!! With a rounded parabolic nose cone, you reduce drag, with less surface area, and the the water becomes less turbulent as it goes around and reaches the prop.
Does your standard Mercruiser lower unit equipped boat top 70 MPH? Suzuki Engineers labored through years of trial and success with computer simulations and on water testing to significantly improve the way an outboard motor converts engine power to underwater thrust. Send your friend a link to this product. Nose cone kit contains all hardware for complete installation. You will need to grind on the front edge of the cavitation plate for the fitting. I used 3M 4000 sealer so if I needed to go back it was easy. Just wondering what you did. I was able to jack the motor about 1/2 to 3/4 inch higher before loosing too much pressure. Then I hooked my "washdown" hose into the water inlet on the outboard that is normally used to flush the engine and walla, I dont need the LU in the water at all when the pump is running. Think it would work? If you're not registered, please consider doing so.
02-12-2006, 02:40 PM #3. drill the drain hole right below the main pickups and then combine the new hole and the one above it. Bravo castings are for 1990 and later. The Vulture Wish List | Project CobraJet. My system came about as a result of picking up sea grass on the lower unit after a decent SW blow. Gearcase design is somewhat complicated, but in this article I want to talk about some key things that will help make you faster, safer, and more efficient. The hole hase to be perfect if it's too far back it will hit the wall for the exhaust cavity, too far forword it will hit the upper bearing for the driveshaft, and too high it will hit the water pump base plate. The DF225 V-6 four-stroke outboard is packed with technology. High Water Flow Capacity. Hydrostream know it all. Here's mine while I was working on it. The award winning DF300AP incorporates "Suzuki Selective Rotation" - the world's first outboard that combines standard and counter-rotation operation into the same lower unit.
It's easy - just click the "Register" link at the top. Years ago he asked me not to replicate his design as he was hoping to take the idea to production. Product Description. Black'99 SVT Lightning #1767 of 4000. The set screw must be flush or slightly recessed in the hole. Be sure to pressure test the drive after the sealant is cured. Nov 08, 2018 10:16 am. The Combo cone is our most popular sport fisher model. The DF300AP also features "Suzuki Precision Control". Making more horsepower can be accomplished in many ways.