View Full Version : General Q & A
- 502 harmonic balancer
- Any thoughts on how easy making power is?
- 572's with inter cooled 14-71's
- Compression numbers all over map on new , not yet broken in kongblock
- Marine Bluetooth 4.0 receiver
- 598 Engine Advise
- Valve springs
- Cylinder Head Volume: mercury 525 efi
- twin outboard V setup
- Is an air gap manifold needed?
- New 540 Combo
- Engine swap
- Anything to prevent where the outdrive "rubs" the gimbal ring
- Potential soft floor issue?
- Another Procharger needed ASAP!!!!
- 700 sci shift interrupt switch
- K plane sending units
- Valve seat materials
- 496 HO randomley turn off/on video
- Goodmorning from Italy!
- Clay Smith cams???
- What valves to use in EQ320 BBC heads?
- MEFI 4 to Nema
- 496HO problems looking for input.
- 454 oval port build results
- 2000 500EFI - Fuel Issues - need expert advice if possible
- Mrercury 700 dropping boost
- Converting from crossover to circulating pump.
- 4.3 Gl volvo ignition problem
- Afrs vs temp
- 38 ft mates cat. Aka cat scratch fever
- Dayton, Ohio
- Winterize with Super Chillers
- Jumping power hatch switch
- Motor Issue WOT 4000RPM
- 588 Idle Question
- New engine issue
- Alignment question with off shore mounts
- Waterjet system at transom of the ship hull
- SBC oil bypass question , reuse ok and orientation ?
- Rear Anchor
- Raylar 540 cu Short Block 496 upgrade ??
- holley throttle cable bracket
- What should a healthy vacuum reading be on 525 EFI?
- Exhaust manifold choice
- Couple videos for you guys
- I do believe I got bit by my purchase...
- Oil bypass question
- 496 Exhaust Risers on 6.2MPI's?
- Electric Hatch Actuator, Solenoid?
- What to do With My MK Cams
- DIY Winterization
- quick fuel carbs
- Drive setup on 30' Advantage
- Livorsi oil pressure gauge problems
- Some carb / intake info
- 509 MPI Starter
- Sonic Vendetta
- Help picking out a cam...
- Boat preparation for hurricane?
- Solid cam VS hydraulic VS short travel hydraulic?
- 4500 series intake that also has 4150 bolt pattern?
- facebook powerboat swap shop
- 2.3 on a 502
- Suggestions for a 35-38 cc under 300k?
- bell housing bushings
- Sealant / adhesive for sealing foam gimble gasket to transom
- Cleaning White Upholstery?
- Best Gel-Coat Repair
- Phone borescope...kinda cool!!
- Hardin Seaward 525 replacement exhaust
- Replacing Water distribution valve.
- Winterizing - battery maintenance
- 32 maelstrom
- Custom cam thread
- Fram XG5 502 MAG MPI & 20W50
- Would you rebuild those 500 efi with those readings?
- Merc Gen 3 cool fuel filter
- Need some help - Port motor not running
- Hydraulic steering
- How much reversion is too much??
- Gen1 Stainless MArine limitations??
- Four Winns Liberator 211
- Sc scoripion. Lots of questions
- Using freshwater flush port to winterize
- MEFI 4B CD or Download Needed
- 496 HO Question - What are these and how should they be adjusted?
- Give this 502/509 Combo Some Thought
- What Carbs would you buy
- Fighting a miss under load
- The curse continues... Brand new coupler slipping?
- Best Carb Spacer 4 hole or Open?
- Merc Smartcraft mpg... U.S. or Imperial?
- Water in hydraulic trim system
- Go badgers.
- US gasoline power beginner questions
- Heads/Cam or Supercharger?
- Water Traps in the Fuel Tank?
- best hole shot Trim tab position
- AFR numbers what's good and what's bad ..
- Bmax drives input
- gaffrig silencers
- 525 Edelbrock head
- 502 oil issue
- Setting the base timing on rebuilt 500 EFIs???
- 6.2 MPi
- Engine Air Temp
- Looking for engine builder in ct area
- Mercury 600SCI - Engine Fault - IAC Output
- Stainless marine exhaust converted to dry? Gains?
- Dyno... Marine trim VS Dyno (race) trim
- Upgrading fuel lines due to age and upgraded engine
- Repower/ long lock opinions
- Mercury 520 Performance upgrades
- 454 suddenly stopped, abruptly, would not even turn over. Took plugs out and
- Boat plugs out with pipe dope
- Boat plugs out with pipe dope
- Powerquest razor 22
- Aluminum heads
- Cam and valvetrain longevity....??? low duration high lift...
- Mercruiser 470 stalls after it has been warmed up. Wont idle under 2000 rpm
- Going from 5.0 to 5.7 or 6,2 SBC
- Opinions on rewiring engines
- Fluctuating engine temperature in my 2000 7.4 mpi Mercruiser Bravo 3
- 1075 sc cam in a 565 NA build
- How to clean oil coolers
- Need a boat brought to Florida from the NH area.....
- Mercruiser 7.4 LX MPI Intermittent Overheat
- Driving thru chine walk
- recommends on engine oil
- Lightning or GiL
- Alternator only charging one battery while running - Scarab 33 AVS???????
- Wow I heard of msd issues. But dam.
- How fast can I go
- 500EFI Help!
- Horsepower VS Torque
- What are you guys using for water PSI and vacuum line?
- Acceleration and efficiency
- Bravo 1 outdrive sagging help
- Spun Drive coupler (or whatever the proper name is)?
- Larson Senza Spectre
- 496 HO sounds much louder when cranking
- Anybody know where I can get a 500 EFI Rubber seal for Throttle Postion Sensor?
- Need Help finding Power Steering Pulley
- Typical places oil leaks occur in the port side rear of the engine
- smartcraft alarm question
- MEFIBURN tuning help
- Slight poping sound out exhaust. Comes n goes. See first post. Spellcheck
- Cause has developed slight piping ish sound.
- Faria gauges on early merc smartcraft
- SBC hydro locked, water in #1 cylinder
- 600SCi 5 beep alarm
- faria tach setting
- Loading up at idle
- water hose to helmut connection
- 500 efi dipstick loose
- 500efi help
- Water in oil.
- Turbulators for Gil exhaust
- AFR 325 flow sheets.... anyone ever flow these heads?
- Anyone run 108 LSA cams in boat before? 700 HP DYNO proven combos welcome...
- Worlds fastest boats
- late '01 496 HO poor idle/occasional stall in nuetral at idle only
- 350 Mag engine wake up
- 525 hp
- 32 fever steering cables
- Baja 232 Voltage Issue
- oil cooler with built in thermostat
- 2002 Baja 29 Outlaw Fuel Vent Question
- Header tube discolouring, what should I do?
- Wierd sea water hose problem
- How much timing advance should I run?
- Stainless Marine manifolds SBC power steering line in the way
- Loosing fuel pressure
- I'm cursed!
- Cams size
- shipping a outdrive
- 500 HP Intermiten Idle Issue
- show me your Fountain speaker locations
- 575 sci
- Older 575hp 540ci merc bulldog engine knocking
- 1995 502mpi won't start when hot
- New style and old style 525
- Bravo 3
- Detonated piston & blew head gasket. Now what?
- frictional losses of 4.25 stroke motor vs 4.0 stroke
- efi for supercharger.
- Reoccurung water pump failures...
- Mag efi
- Mercury 525 Rocker arm replacement
- Oil pressure flutter at higher rpms.
- Do anti-reversion dams work?
- Replacement steering Verado 400R
- Hydraulic Hatch Actuator
- Oil Pressure Bypass Valve Question
- slip %
- Pre-Filter Oil Filter Screen - YEA or NEY ?
- Power steering pump fitting Aeroquip?
- Catalyst elimination for "test purposes"
- whats the torq spec for bravo transom plate?
- Msd total timing procedure when locked out
- A little more Tinkering
- 502 MPI intermitant no start when hot.... not fuel prob
- Fuel Coming out exhaust
- Hammer knocking noise when in gear over 3000 rpm
- Will MSD digital 6 work with thunderbolt distributor?
- Holley Commander 950 mpfi won't fire!
- Thunderbolt V ignition, will big block module work on a small block?
- need part # for hose transom to sea water pump
- GM Fastburn heads, any experience with these?
- Weber carburetor
- new 540 water in oil
- Vessl View & DTS
- Push rod retainers.
- 5.7 timing with comp 270 cam
- CMI headers. Are they fixable?
- EFI Systems
- Impeller
- Chaparral Villian SLV Speed Capability
- Motor Issues
- procharged 454 Mag rebuild upgrades ????
- Heat exchanger help
- Rosella Oil
- converting my 350 cid merc. 320 efi's to carbs. what jet sizes?
- Plug for ?
- 500 efi 50lb fuel injector
- 502 mag loads up under load.
- Outdrive line help
- drive swap alpha 1 gen 2 to bravo one
- Blind mounting swim ladder? - 89 Baja 226 Islander
- Advantage 27' rear seat removal
- Where to get gaskets 5.7 mag gen +?
- Imco riser gaskets
- 502 build
- External steering on a B1 vs XR
- 496 intake manifold gasket
- RPM Lug
- Dominator on 4150 sniper jr with spacer?
- 2005 Mercury Racing motors one is low on power
- 496 Rockers
- More HP in 7.4 MPI's?
- Bad Vibration, need help troubleshooting
- Hours vs mileage.
- Gear oil bottles
- Tuning 350 Vortec w/ LT4 Hot Cam & Holley 750 Double Pumper
- Anyone have oem MEFI1-4 tunes for 502MPI?
- Rpm issue ideas.... I'm lost....
- Any recomendations for a Surveyor near Gainsville Ga?
- Pontoon steering help
- 7.4 MPI low power