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It would restart most of the time. Mercury EFI TwoStroke deliver fast acceleration and smooth reliable operation.
Once the engine is warm a thermostat opens and more cooling flow is provided.
Mercury 200 efi water pressure. Have replaced water pump and want to make sure it is right. Pressure is 12-14 psi at full throttle on pad. Just doesnt seem to have much at idle and doesnt pee as much as used to.
Water pressure 2000 Mercury 200 EFI From my personal experiences that is about normal my Merc manual for my 89 200 hp shows 12 psi at WOT. I have seen some that will go to about 22psi. If you dont have a manual call a local Merc shop and ask them what it should different motors have different specs.
Anyways this boat does something a little goofy. At full throttle or even 34 throttle the engine has between 12-15lbs of water pressure but when I start to trim it up when I get it just about to full trim the water pressure falls to right at 8lbs or so. 2000 Mercury EFI 200HP - Continuoussteady Beep.
What is your water pressure cruising should be around 8-10 PSI at 32 MPH Water pump may be failing. Need to add engine numbers and model. Do a search on poppet valve and water pumps you can read a lot on it.
Jerry shack Well-Known Member. Joined Feb 5 2013. Running in a tank the water pressure at idle is good 2-5 psi and the head temps are good 150F.
Water pump poppet and t-stats were replaced last year and we ran with no problems till now-My prop guy had to put some cup in the prop and advised it is pretty worn. If you know some one who has a 1996 to 1999 200 EFI merc 200 then borrow the ecu for a trial. The one I had here dropped sometimes but not always but always dropped at around 3500 to 4000 rpm and sometimes would just drop to maybe 1500 and sometimes would just knock off.
It would restart most of the time. The valve is pushed off its seat by water pressure from running through the water and about about 2000 - 2500 rpm. If the boat has been operated in salt water it is not uncommon for the valve.
Start it and the water pressure is normal again keep the rpm around 3500 and water pressure is sitting at 10psi. So hope this is all that it was Reactions. Noli Outdrive1.
The pulse fuel pump operates through alternating crankcase pressure to deliver fuel through the water-separating filter to the vapor separator. Fuel pressure Idle 2-3 psi Minimum 1 psi. Fuel Pressure Wide-Open-Throttle 6-8 psi Minimum 4 psi.
No warnings no reduced RPM. Max water temperature at trolling speeds is 147 and usually around 135 to 145. Water temp indicated at speed is under 100 degrees.
Water temperature in the lake was 62 degrees. Per the manual the ECM should reduce power and provide a horn that water pressure is low. Hmmmm 0 is low huh.
Mercury 200 EFI Manuals. Manuals and User Guides for Mercury 200 EFI. We have 1 Mercury 200 EFI manual available for free PDF download.
Once the engine is warm a thermostat opens and more cooling flow is provided. But in addition when the throttle is advance and the water pump output rises the higher pressure created forces open a poppet valve and admits even more cold water into the cooling system. This gives the engine plenty of cooling at higher engine speeds.
The cooling system on these Mercury motors uses a pressure-actuated valve to regulate the flow of cooling water. This is commonly called the poppet valve This valve is in addition to the normal temperature-operated thermostatic valve found on most all outboards. I just changed the high pressure fuel pump on my 1997 200 mercury efi and it now cranks right up.
When I go to get on plane it struggles really bad but once on plane it runs 67mph with plenty of power. Then when I go to load it on the trailer it just bogs out with very little power. Mercury EFI TwoStroke deliver fast acceleration and smooth reliable operation.
Plus with the added power of 25 litre big block engines you know you have what it takes to move larger vessels with ease. The powerhead design is a slim 60 V6 that is ideal for twin-rig installations. Details and data provided herein apply to 2002 Mercury outboard 150 175 200 electronic fuel injection engines with a starting serial number of 0T409000 and above.
An engine that cranks but will not activate and begin to work refers to when a motors crankshaft rotates but does not cause the internal combustion engine to turn on and start running. Only got up to about 40 mph and the tripod broke. When I looked over my shoulder I noticed the cam laying on the back deck.
Almost lost it overboard. Mercruiser 43L 50L 57L 81L. Correct water pressure depends on a number of factors.
Its not always the same number on every motor. Some motors run closer to 18-20 in which case 12 could mean death. Also a healthy water pressure number might not always reflect aeration bubbles in the cooling system which can still cause an.
1 Oil Filter 1 Low Pressure Fuel Filter 1 High Pressure Fuel Filter 1 Oil Drain Seal 2 Gearcase Drain Seals 1 Thermostat 2 Thermostat Gaskets 75-115hp 17L FourStroke Serial Number. 1B366823 - 2B094995 Part Number. I have an 06 150 hp optimax I bought the boatmotor new Its been serviced regularly new impeller every 2 yrs.
The water pressure gauge always showed around 0 at idle 5 when running. I know these gauges are not super-accurate and will fluctuate as the impeller wears whats strange it the tech at the dealership. April 06 2008 025620 PM.
I have a problem with my recently rebuilt 200 EFI Merc. Starts fine and idles fine but when I go to accelerate to get on plane it will bog down just prior to getting on top. It doesnt die just slows to a high idle.
Sometimes it will get on pad and run for a few minutes without problem 5-10mins and then suddenly. I have a 2007 150 mercury EFI. It is running too hot.
Going into guardian mode. I have replaced the water pump assembly 143 degree Thermostats poppet valvebase gasket adapter plate gasket head gaskets. It has very little pump pressure at the gauge.
I tested the pump at 900 rpm with a drill and got more than 10 psi. Find Water Pressure Gauge Kit 2-30 PSI Black Face Orange Graduations Black Bezel - 895288Q43 here. Cross Ship - Leaves in 3-5 days.
Offering discount prices on OEM Mercury.