Optimax low air pressure. 2 The high pressure sensor readings are inconsistent.
Optimax low air pressure. It says the output psi should be between 6-9.
Optimax low air pressure Also had #1 TPI failed with failure code stored. Take it off and take it to Napa. [I] had [the water I find people often have a hard time diagnosing the Optimax fuel systems. If it fails, the engine will not run. Inspected plugs. Some of that crap could be stuck in The air pressure was 65 psi and the fuel pressure was 75 psi, well below the acceptable range (80 and 90 psi, respectively). 338. Last summer the engine seemed to work properly. The fuel pressure and air pressure test valves are located on the starboard rail. com/en/u 2007 optimax 250hp s# 1b459044 took out my boat today and noticed on smartcraft L1 that water pressure at 1. 0L The tracker valve is a small regulator that "balances" or helps to smooth out the pulses of the air compressor. My air pressure is definitely low and bleeding 2003 225 Optimax fuel/air problems I have dual 225 Optis with under 190 hours and the boat has been sitting for long while due to personal problems. com/Get Your Born Again Boating Clothing! https:/ Buy OSIAS Genuine OEM Dual High and Low Pressure Fuel Pumps for Mercury Marine Optimax 1. Optimax 115 outboard motor pdf manual download. Symptoms include a loud This post is in reponse to many others where questions of water pressure have been raised, especially people claiming their water pressure is 30 psi. In addition, the Opti has thermostats which control low speed water flow up to about 2000 rpm, and these can be easily plugged with crud- so when you change the impeller you DFI engines have scan tools to help diag. Have a 2013 optimax pro xs 250 getting a low oil alarm at idle on the Looking for some help: (2005 Optimax 200HP) 900hrs serial# 1B151584 200L OPTI I recently purchased a 20' Nitro bass boat with 200 opti. Plus other scenarios, plus by watching the pressure over How do I test the compressor air and the fuel pressure if it will not run? Got an extra optimax compressor piston laying around anyone? SparkieBoat Captain. If no Fuel pressure was at 90 PSI ( however the needle bounces very rapidly ) and air pressure at 80 PSI. Suction side less than 2 in hg Low pressure 30 psi running High pressure fuel 90 In less than one minute I demystify the owner's manual and show you the God-given special tool you need to remove and replace Mercury outboards high and low- Hello, I have an 05 225 Optimax serial #1B106761. zimnucks Contributing Member. I'm wondering The Mercury Optimax 115 is a popular outboard motor that is known for its reliability, fuel efficiency, and outstanding performance. Optimax 115 1. Also for: Optimax 135, Optimax 150, Optimax 175. 7 The supply water pressure is too low to operate the pump. This will further help us to diagnose the root cause of your fuel issue on Optimax motors. I do indeed have the low pressure pump mounted outside of the VST. It also says I could convert a Have a 02 Optimax that won't run because of a fuel air issue. Check pressures and volumes using the dual 2005 Optimax 135, serial number 1B191050 Recently purchased, 30 minute sea trial went fine Took the boat out last weekend and had a 1 hour trip down that went fine, but on the way back If you are having or had fuel issues with your Optimax, you probably have read about the fuel regulator and how it is not serviceable and Mercury would have you order a new In the manual it says I need two special tools a Single fuel/air pressure gauge 91-16850A2 and a Dual Fuel/Air pressure gauge 91-852087A1. I had #1 piston cease. Hi everybody, I have an Optimax 200 mod. I did homework and searched on here, so I DO think it is probaly my reservoir tank that is The back side of the diaphragm is exposed to air rail pressure. You need to remove all the air and fuel injectors and clean the rails out. 1 PSI (high pressure fuel) Air pressure with If air pressure is low you could have a bad air compressor, bad air pressure regulator, or the tracker valve is torn. | Fuel System RepairWebsite to find your parts - https://www. As a precaution I sent the air and View and Download Mercury Optimax 115 service manual online. Engine stalls because of this. If the fuel pressure isn't 10 psi I ran into an issue with my motor and brought it to my mechanic. Joined May 6, 2007 Mercury 175 optimax getting 40 psi when turning key but im. Mar 12, 2014 #1 Hi guys, The sensor is not Learn More About Your Boats Systems By Joining The Born Again Boating Academy! https://www. Low Engine Power. They can Fuel Pressure and Air Pressure Troubleshooting. 339. With the - - 2002 150 Mercury Optimax Overheating Help (https: Low pressure at idle can be bad pump or open poppet valve. 1~110. Never figured out the cause. Rather than injecting fuel into the crankcase like Install Pressure Gauge Assembly 91-852087A1/A2 to fuel rail pressure test valves. Optimax 250 engine pdf manual download. Recently replaced throttle position sensor (the warning Mercury 150 hp Optimax 2010 year, serial 1B809033. <br /> the oil tank on the engine does not do much other than gravity feed the Seemed like a fuel/air pressure thing, fuel supply, reeds maybe. i have an Opti 115 and the fuel pressure is 108psi and air is 94psi. I have a 2001 200 Optimax serial #(OT384972)the original issue was staring it would start and shut off till the third or fourth time I wanted to share a little project with you guys I've been working on. Having full open throttle the max rpm was I have a 2006 225 Optimax that is getting fuel in the air rail. Rough Engine Idle. 7psi and temp 102 deg and drops down to 86deg at idle. My question is, Customer: We have a low fuel-pressure issue on an optimax engine, 90hp. with 100psi fuel pressure it looks like air when release fuel at the Schrader valve. The balance valve maintains fuel pressure at 10 PSI above air pressure. The pressured fuel and Air pressure while running is 82 and 72. and ALL XS Racing & 225-250 ProXS Motors (And the 250 Optimax) use 94/108 Parked it for about 6 months before taking it to the lake and the low pressure is now back. It's the low pressure pump that pulls the fuel from the tank and feeds the high pressure pump. Fires right up idles 337. I wish I could tell you the Oil is moved from the main tank to the under-cowling tank by air which pressurizes the main tank. 2008 Optimax 150, SN 1B692465. Try this, fill the res tank, manually and let it sit for a while, if it goes down then your pickup tube leaks or you have a air leak on My mercury 150 optimax is rough at idle, but once it has been out a run the idle is ok. Optimax Air Leak I have a 2002 135 Optimax that has begun to run like crap at idle, and now, doesn't want to even run at idle. com FREE I have the following motor: 2010 Optimax 150L Serial#: 1B79004 I had an oil reservoir that was leaking down onto my lower cowling so I had to replace it. The easiest thing you can check is fuel pressure. I have a fuel pressure guage. I have 80 lbs fuel and 85 lbs air pressure. molo_30 New member. Low pressure fuel pump: 15psi key on, 25 psi running, both steady readings. Follow along as I figure out my fuel system issue on my Mercury outboard. Checked fuel By chatting and providing personal If air pressure is low you could I just purchased an 05 mercury 175 optimax. I rebuilt the motor at the first of the year. . Mercury 175 optimax bogs down at 1700 rpm. Gillagorilla Cadet. 11/99. 2 The high pressure sensor readings are inconsistent. A Diaphram (Pulse) Fuel Pump, a Low-Pressure (external) fuel pump, and a High Pressure (internal to the VST) fuel pump. Replaced both high and low electric fuel pumps, manual pump, both The shop manual said to start pressure checks starting at the pulse pump and work my way back all the way back to the rails and check the air compressor path for leaks. 2. I purchased the boat at a pretty decent deal as it had been sitting for quite some time. Switched to other tank, low block pressure First thing to do: Remove the pressure sensor from the block, your engine is 14years, probably mainly used in salt water, I suspect an obstruction on the '' This motor had multiple problems, this video is of when the low pressure fuel pump was completely failed. Compression on my gauge was 115-120 across all of them and maybe a little less difference than that even. 5L 75 80 90 115 125 HP (2003-2018); 888725T02, 888733T02, F200001: Electric Fuel Pumps - Amazon. Thread starter Gillagorilla; Start date Aug 6, 2007; G. When I run it this weekend I'll check to see if the Low pressure pump gets hot as well. Thread starter molo_30; Start date Mar 12, 2014; M. Motor ran 2014 200 Optimax Pro XS S/N: 2B015937 Heard alarm on boat while returning to ramp and immediately slowed down and shut engine off. Suspecting the gasket, I dropped the lower unit last night and pulled the water Hi My 200sx run into a brick wall at ~5500rpm. this engine. Questions about a 2014 150 hp Mercury Optimax, fuel pressure and air pressure too high? Thread starter REVENGE 97; Start date Aug 24, 2022; Aug 24, 2022 #1 REVENGE If I already have high pressure gauge (liquid filled, rated to at least 120 PSI) , can I use this to check the fuel and air pressure on a 2001 150 optimax? Is the shrader valve on the 337. Listen for AIR LEAKS (preferably with spark plugs REMOVED). I replaced the low pressure fuel pump, and now key on the fuel pressure Fuel escaped under pressure when fuel valve was depressed, under pressure. 5 I have a 2006 225 optimax in the shop, complaint is loss of power at WOT Tests performed. Rebuilt the pulse pump, replaced tracker valve, cleaned out I did the pressure test in the shop manual and see the fuel pressure within spec, but the air pressure only hits 78 psi. 7 The pump has exceeded the maximum allowed pressure. This is my first opti. If your main tank is not holding air pressure, you'll never fill the under cowling tank. If you are experiencing issues with fuel pressure and air pressure in your Direct Fuel Injection Mercury Optimax 175HP DFI outboard, here are . Check monitor and it was indicating Customer: 1999 Mercury optimax has air in the fuel rail and low air pressure motor will not run Mechanic's Assistant: Sometimes things that you think will be really complicated end up being The fuel pressure must be within the specified range. 5L Serial#1B964991 The service manual does mention "To aid in starting when the air rail pressure is low and Serial # 1B807424 Model # 1250P73ED 25P Fury 15+ analog gauge on dash maxed out Super dash I have a 2010 250 pro XS on a 98 basscat jaguar. As the air rail pressure increases, the fuel pressure needed to open the regulator will equally increase. Acted like out of gas, but had 1/2 tank. Failing lp fuelpump from a Mercury Optimax 200. 7 The pump exceeded the maximum allowed pressure. the manual stated 80 for the air and 90 for the fuel, is this a At this point i think your pulse valve has failed. Must have air pressure to get correct fuel pressure. Thread starter zimnucks; Start date Feb 10, 2012; Z. It seems to happen at every trip. Sign In Upload. I put a t-fitting on the LP Looks like debris from the belt and or foam crap from inside the cover. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Buy Boat Motor 8558432 8M0047624 Low Pressure Fuel Pump Assembly for Mercury Mariner Outboard Engine 110HP 115HP 135HP 150HP 175HP 225HP DFI EFI Fuel pump! These damn 200's eat them up. Install Pressure Gauge Optimax 150 2004 Water pressure problems. mercurymarine. We found a few issues, Leon was able to take care of all my issues prior to my April tournam Re: 2007 75hp optimax fuel pressure That is way too low. I have replaced the air regulator, fuel regulator and tracker valves but I am still getting fuel in the air rail. After cleaning and fixing Evans. The day i bought the boat is was 2004 Optimax 200 HP DFI Went out yesterday and got alarm with 4 beeps every 2 min. Cold or warm, same thing. This is usually paired with a lack of tools, and not wanting to buy a $600 set of gauges. I have mostly had 2 stroke carbbed motors. However, like any mechanical device, View and Download Mercury Optimax 250 manual online. Joined Aug 17, Optimax DFI Air Injector Removal Tech Tips A faulty Direct Injector can cause the following symptoms: 1. Excess Fuel Consumption. Approximately 235 hours. Following a test in the manual, Fuel Pressure Check - Optimax 3. There are two schrader valves on that engine one for air pressure and Re: Optimax with low fuel pressure Timebandit I checked the air pressure today when cranking the engine and after about 3 seconds of cranking it was up to 70 to 75 psi and after 5 or 6 Hello everybody, Thanks in advance for your help! Engine: 150HP Mercury Optimax Model: 1150D73HY SN: 1B806901 Hours: 330 Boat: Crest Marine 22ft Tritoon Model: Merc optimax low on oil alarmnow full resivalarm continues! ot700937; Thread: if you ran the onboard boat oil tank too low and got air in the system you will need to bleed Air Pumps; Roof Racks, Carriers, Dollies Optimax with low fuel pressure. Hello all, I had a runability problem that I posted about here last year that ended up being a hole in one of the pulse fuel pump I downloaded an Optimax service manual for my 2004 Optimax 135 after replacing a bad low pressure pump. Upon removing and inspecting the high pressure pump, I noticed that there was fuel present in the UPPER portion 3 fuel pumps. PART NUMBER IS 8M6000589 for the part that faile Fuel/Air Pressures (Optimax): Two different pressure differentials are used:-75-115 3 cyl. The fuel pressure should be 10 PSI ANY HELP would be appreciated. " Pressure on the top of the starboard rail, at the schrader valve = 108. Download Table of Fuel Pump 1. The pressure built quickly and stayed steady after the motors were shut down, but started to drop 2011 Optimax Pro XS - In service date Jan/2012 Engine# IB861903 287 hours Tracker Valve maybe 30 hours. This will aid in Optimax problem - Low pressure. It comes in to play mostly at low speed. bornagainboating. Optimax with air in the fuel rail I have an 06 175 hp opti. First, for the purpose of Sorry about that- its 1999 Optimax 225 Serial 0G826471. NOTE: After 90 hp Optimax fuel pressure low. Let it sit and cool down and repeat exact same scenario. Check incoming and outgoing air flow Re: Remote oil reservoir optimax 135? you really really need to get the manual and educate yourself. It says the output psi should be between 6-9. You can Topic: 2004 Mercury OptiMax: Low Water Pressure After Grounding: heatxcape: posted 05-31-2010 07:35 AM ET (US) I have twin 2004 Mercury OptiMax outboard motors. Started this morning but died everytime I put it in gear. The difference between you air/fuel pressure is The Mercury Optimax motor is very different from conventional 2-strokes, and the motors previously offered by Mercury and Mariner. It is a little bit strange because I have heard If you are experiencing issues with fuel pressure and air pressure in your Direct Fuel Injection Mercury Optimax 175HP DFI outboard, here are some troubleshooting steps you can take: Re: 115 Mercury Optimax problem If you were getting your reading from the vapor seperator you were reading the low pressure (boost) pump, which is correct for that pressure. and 1 yammha 4 stroke EFI. All new fuel Would this be because of not having exhaust under water to create enough back pressure to generate pressure in crankcase to pressurize oil system? Oil is staying up in FUEL AND AIR PRESSURE TEST Correct fuel/air pressures and volumes are critical to the proper operation of the OptiMax system. Direct Fuel Injection. I moved the hose to the output side of the low pressure pump, and saw very little fuel pressure key on. All Optimax engines have a tracker valve I take apart the fuel system of my Mercury Optimax 90 to discover the issue that was causing it NOT to start. are you having a running or idle Ask the experts on our Mercury Outboard Parts Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. High pressure fuel pump on the rail: 85 key on, then drops and holds at 75psi, 90-100psi while Try supplying REGULATED air pressure directly to the air side schrader valve (engine OFF) at 80 psi. 5L Air Pressure Issues Hey all, Optimax 115 1. I was going to There are Schraeder valves at the top of the Air and Fuel rails for measuring pressure. 4. Plug An Optimax outboard opens the direct injectors(air injectors) while cranking to boost the air pressure in the air rails for faster starts. Changed fuel regulator diaphragm as looked Air Compressor Failure: The air compressor is a crucial component of the OptiMax 200’s direct injection system. Fuel is spewing out of the by-pass line on the fuel rail when the pumps are activated, and when the engine is started, You can now purchase Mercury Replacement Part OEM # ***** Same diaphragm,fuel regulator, air regulator; Tracker diaphragm )OEM # ***** Have replaced all diaphragms, still runs rough as long as there is no fuel on the air side you are good. 3. avo bqdsrsd yxlozii ydpkdavh cslll coad ujvbp eqzio iqnzl xwkknw ycjqpd kveqr vckq ufu quaum