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15 or 30 psi. Can I use the tale tell water discharge fitting on top of the block and eliminate the tale tell water stream as I would now have a pressure.
Install the outboard so that the anti-ventilation plate is in-line or within 1 in.
Mercury outboard water pressure gauge installation. The pressure tends to top out at about 12 psi which is why the Merc water pressure gauges only go up to 15 while other aftermarket ones are 30 or even 60 psi depending on the application. Once installed you will get a feel for whats normal on your motor - cruise might be 8 or 10 psi and pushing 12 at WOT. How to Install a Water Pressure Gauge on an Outboard Engine Mechanical - YouTube.
How to Install a Water Pressure Gauge on an Outboard Engine Mechanical Watch later. Water pressure gauge installation My Mercury shop manual says 12 PSI Minimum 5500 RPM for the 200HP. The manual does not seem to mention what the minimum PSI should be at idle.
The below linked DIY article provides some more information on water pressure gauge installation. It indicates that 8-12 PSI at idle and 22 PSI at WOT is normal. Water Pressure guage install 75hp Mercury 4-stroke 13 Post by RonKMiller Fri Apr 27 2012 1255 am You may want to try unplugging the hose from the gauge start the engine and let it pee out that end to evacuate the air in the line clamp the line a few inches from the end to prevent air from getting back in while you shut the engine off then hook back up to the gauge.
Tee the water line close to the engine block outlet and take pressure sensor off this tee. The key is know what your normal water pressure is and then to watch it regularly so that any deviation can be an early warning notice - before youve done any damage. Water temp is also a good idea.
Water Pressure Gauge Installation 150 V6 RLA – maybe I misunderstood you but auto engine cooling systems do not have water entering at the thermostat. Water from the bottom of the radiator enters the intake of the water pump is pushed into the engine and held there by the thermostat until the operating temp is reached thermostat temp. Making A Hole In Mercury Outboard.
In this step we need to Cut a 2 116 diameter hole in the outboard and let stand the gauge with the supplied back lock. The Joining Of Wire. Here Join the cable to the gauge knob marked S signal and fix it with a nut and lock washer.
Show other side of the motor some of the mercury 4 strock and yamaha blocks are the same set up on the other side of the motor there is a alon head small brass screw there is a fitting that you have to swich out and install might be same block try and post other side pic. The mercury 2-strokes from 1999-2004 and the mercury seapro he owns dont have a direct water pressure hook up to the block. The water pressure gauge needs to be spliced into the tell-tale line with a t-fitting and doesnt give a good reading.
When operating at WOT the water pressure gauge only registers a few PSI out of the 30 or so the gauge allows. I had a WP gauge on mine and it returned it to. Go to the engine block and find the water pressure tap.
Take off the tap plug using the Allen wrench. Put the water pressure gauge tubing into the tap and use the wrench to tighten the nut. Run the other end of the water pressure gauge tube to the gauge.
Screw it into place and then tighten the nut. Installing a water pressure gauge on a 1987 Merc 115 hp outboard. There is already a temp sender in the head cover hole between XXXXX 4 cyclinder.
Can I use the tale tell water discharge fitting on top of the block and eliminate the tale tell water stream as I would now have a pressure. GAUGE KIT Water Pressure 1-15 PSI Black Face Blue Graduations Black Bezel 1 required per assembly 79-895288Q41. GAUGE KIT Water Pressure 1-15 PSI Black Face Orange Graduations Black Bezel 1 required per assembly 79-895288Q41 - Water Pressure Gauge Only More info 5005.
Installation of a cooling water pressure gauge is straightforward. Most of the gauges are operated by connecting a hose between the gauge and a tap-in point in the engine cooling system. The hose is often a small plastic hose typically 025-inch diameter or less.
This Mercury 895288A01 GAUGE-WTR PRESSUR fits the following models and components. Mercury Outboard Rigging Parts Controls Gauges Electrical Analog Gauges Gauge and Mounting Hardware Water Pressure1-15 PSI. Evinrude Mercury and Yamaha use a high-pressurehigh-volume method to cool the engine.
The gauges in these systems indicate pressure up to 30 psi. Usually near 0 at idle to 25 at wide open throttle WOT with a dump valve to release extra water during high-speed operation. The water pressure is about 4-6 psi at idle and 10-11 psi over 1500 rpm and stays constant.
The temp gauge was also double checked for accuracy with a laser thermomoter with the motor running at the dock. When idling under load at 900 to 1000 rpm the temp gauge starts to creep to 150 - 160 degrees. Bobs Water Pressure Gauge Kit.
15 or 30 psi. Kits include hose fittings adapters and zip ties making it compatible with most motors on the market today. Yamaha motors require 61886P adapter kit for installation.
308 162721 15 PSI Black gauge kit 9495. 308-130200 30 PSI Black gauge kit 9495. Faria Gauges Technical Information.
IS0001d - Water Pressure Gauge installation instructions. IS0002f - Temperature gauge WaterOil installation instructions. IS0003b - Temperature Gauge Cylinder Head Outboard Motor installation instructions.
IS0004f - Voltmeter 1224 VDC installation instructions. IS0005c - Ammeter Installation Instructions. Installing Outboard Non Thumb Screw Models 1.
Attach tape engine mounting template located in this manual to boat transom. Mark and drill four 1732 in. Install the outboard so that the anti-ventilation plate is in-line or within 1 in.
25 mm be-low the bottom of the boat. 0 - 1 in. 0 - 25mm a.
It didnt matter what trim level I was at or how I set the jack plate or how fast I was running I seldom saw better than 12 psi most times around 10psi. We fixed this issue with my outboard by adding mercury oem water scoops. Now the pressure is in the 16- 20 psi range no matter what I.
Controls and gauges that have to face the ultimate test. Getting past a Mercury engineer is no easy task. Often up to 1000 total hours before the control or gauge is fully certified by Mercury engineering.
And worthy of your boat. As for water pressure gauges there is a water inlet that sits on the outboard engine. The water flowing through the tubes makes its way to the pressure gauge where its interpreted to numerical values for user understanding.
Usually boat water pressure gauges come in kits. It makes them more comfortable for the user to.