View Full Version : General Q & A
- Johnson Hydraulic Roller Lifters
- Will VIN. tell 496 engine HP.
- Valve spring pressures
- mechanical fuel pump
- 502 MAG MPI exhaust and cam options
- Those cool black carbs
- 500efi computer
- Sparks
- Broken output shaft & coupler
- Hydraulic Followers best?
- Hp500 carb to efi conversion questions
- Who does good job on Carburetor Rebuilds?
- Spark Plug wire question
- Alternator Temperature
- Kiekhaefer throttles issue
- Card in spokes noise from back of engine
- 572's with 50 degrees total timing???
- Water distribution tube for exhaust
- What happened
- Mercury 600sc???
- Merc 700sc Idle Air Valve on Supercharger
- Engine Stumble at 2100 RPM
- Why is the Gen 7 496 such a bad platform to build
- Please any Help/Input/Advice -500 EFI
- My serial number
- Torque spec for prop nut on Mercury #6 drives ?
- Cutler efi
- Head gasket for Vortec Charger application?
- 350 vortec weber/edelbrock style carb question
- Generators
- Seller claims 454 Magnum 420hp stock - really?
- Which EFI system would work best/be the most simple
- What to look for when picking a CAM
- Looking For Exhaust Diverters for 496HO
- Looking for a race boat
- Cylinder #5 sucked water due to crap header. What next?
- Exhaust tips
- Mallory Marine YLM Series Magnetic trigger distributors, setting the dwell?
- Mechanical trim indicator card is off, are others like this too?
- Props Blowing Out - Drive Height? (Pachanga 22)
- Hardin Marine Hydraulic Steering Filter
- 500hp carbed thermostats
- New Carbs or Covert to EFI?
- RPMs at WOT
- hydraulic helm piping
- Hour meter questions
- Elevation Question on Performance
- Volvo dpx drives
- Holley 1050 or Quick Fuel 1050
- Oil Question
- 2004,496ho questions
- looking for a pair of motors to replace my pfaffs ,,
- 25 baja outlaw, putting whipple on
- 454/330 to 496 stroker
- Richelieu trailers
- Storage
- where to install WP relief valve
- HELP with Fragola hose and fittings
- Is 40psi enough oil pressure?
- Bravo XR Gear Ratio
- 305/350 Conversion issues/concerns
- Perplexing Oil Pressure Question
- Going back to stock fuel and pcm.
- 1988 vintage 280-K Trim Tabs
- Oil Pressure Perplexing Question
- Fuel pump question
- I need help with ECM questions
- any truth that stepped hulls MUST have low water pickup drives when using bravos?
- Locking Out a DUI Distributor
- 625 Ilmor
- Opinions on Cam shaft
- 496 Mag hesitation issues...
- Cigarette Draft
- 4500 vs 4150 on a 540
- gimbal bearing part number
- Scarab throttle/shifter?
- sea pump/fuel pump maintenance - how to?
- 900sc with Stainless Marine Gen III
- Alpha One Gimbal bearing seal question
- 454 Mag MPI Milkshake With Low Compression on 1 Cylinder
- Fuel pump question,
- Mercury racing 502 efi- head work- valve springs
- Mirage plus hub kit
- Marine (reputable) engine machine shop in the Southwest Indiana/Midwest area
- New gauges how to?
- Freshing up a pair of 420's gen4
- What ADD-ON hydraulic Steering is best to buy??
- Drive question
- New to boating. Looking at AT tantrum
- Best aluminum head?
- Steering turns lock to lock?
- What aluminum heads would be an upgrade from iron vortecs? Looking for more TQ and HP
- Intermittent 525 alarm at idle
- educate me
- No "fuel" issue & Mercruiser EFI 502 Info Needed
- sea water / fuel pump rebuild........help
- WHELP, time for a new motor/rebuild...Recommendations????
- Carburetor talk.
- Fountain Spitfire
- Pop Yachts to buy a boat? Whats the value in this?
- Internal Flappers
- 454 head
- 500HP Remote Oil Filter Adapter Leak
- 502 efi gen V running rich
- Stroking gen V's
- 502 Procharger fuel system setup problem
- Which header for my set up
- Oil temp question
- New Mercury 600 starting problems when hot
- Gev IV 454, modern fuel and timing
- Map sensor
- Question for the carburetor guys?
- Helping a friend - '97 Merc 5.7L LX Alpha - dead miss
- Question for those that have changed plugs on 496 MAG or MAG HO
- oil cooler flow direction
- 575SCI's, Thermostats and high temp alarm.
- 2000 502 mag mpi high oil temp????
- Engine Clearance Question.
- need advice on electric fuel pumps
- Crossover kit
- Engine stalls after returning to idle
- Got my engine idled down but now it is hard to start and has trouble staying running
- 496ho Losing Speed
- Oil pressure issue
- How to tell if transmission is going out
- Decipher beeps on Merc.
- Closed cooling for 800+hp
- Sea Water Pressure Sender Location?
- Hatch lens replacement help.
- Where are all the factory take outs??
- 502 MPI - Hot Boat Write Up
- What plugs to use on a aluminum head ?
- Boat floor repair or replace?
- Gill exhaust
- 502 Cast iron head and cam upgrade
- Speedmaster 2 outdrive will not mount back up
- MCM 5.7 Thunderbolt V.What Flywheel?
- (Carry On) A/C Options
- 2001 EFI 260 Mercs---- Thinking of procharging. Pros and Cons requested??
- 525EFI Steaming out exhaust after ITS install???
- 2000 Mercruiser 502 mag mpi engine scanner....where to get one?
- Best way to attach Merc cables to a Demon Carb
- Talon wouldn't fire yesterday at the ramp
- CMI E-Tops to Corsa Silent Choice
- Fountain won't plane out all of sudden
- T Bolt 5 plug and harness
- 2006 Indmar 383 with SPN 66017 code
- 05 496 HO cutting out
- HELP! 7.4 Merc dies all of no where!
- Baja 320 with a trim pump that just clicks
- How to install oxygen sensor bungs.
- Adding oxgen sensor to Gil riser
- 525sc height
- One side of crossover hot other cold. No Temp
- Pick up location with a notched transom?
- 500hp question carb to efi
- Help! Engine wont build rpm
- 350 magnum Engine head and cam upgrade
- Oil temperature issue
- BAHA 340 Mach 1 Combo
- gil tail pipe question
- Blown Bravo, need advice...
- AN fuel line question.
- pre alpha transom assembly will alpha 1 drive bolt up
- intake manifold heigh
- weiand 177 on 454
- my brothers 525 sc . get to 3500 and just spit and spatter
- Going freshen up 420's
- Cause of lifted ring lands on pro charger motor
- Cause of lifted ring lands on pro charger motor
- LT1 MEFI 2 question
- 500efi alternater
- Mercury 496 Mag trouble, need help
- Best place to buy AGI box?
- What happened to the beeper
- Twin aluminum Small Blocks good idea, or a bad idea?
- Hours reading wrong....Ideas???? please help
- Power steering issues after installing single add-on ram
- Shift cable Questions ?
- Mercury Engine Code
- Mercury 700' consumption &constant use in salt water
- Carrier bearing flange
- Scarab Thunder fiberglass swim platform??
- 500 EFI water jackets possibly plugged with mud.
- Alpha gen 1 vs gen 2 & TBIV vs TBV
- Need Advice On Blower Pullies & Belt Size
- Trim Tab Pump worn out?
- Steering options for bravo with HP Gimbal for 20' used boat
- 2nd Power steering pump smoking and leaking.
- water in chamber
- EFI Fuel Plumbing - Best Practices
- 454 mag mpi 385 hp Gen V 1992
- Trim tab pumps
- help finding a rebuilt mercury 500 EFI for a fountain
- my fountain is officially for sale complete minus hust the engines ..
- Oil coming out of hp500/525
- 496 HO 2 beeps per...
- 540 ci bb chevy blower timing
- Most boost/reliable hp anyones made with a block without extra center bolts on heads
- Mando Alternator question, on 502 MPI
- Engine Knocking 4000 RPM
- Need a compact alternator - 496 manifolds on 454 Mag
- 572 Blower Motor Knock Sensor / Misfire Problem
- 525 EFI Replacement Spark Plug Wires Needed
- Baja 442
- 225 mariner 3.0 carb'ed issues
- bad prop slip on baja 240 sport
- Best afr gauge and O2 sensor
- what hp am I pushing out of this 540
- Power Steering Pulley
- Fuel delivery issue, I think?
- 572 Quadrotor Running Rich HELP!
- Bravo XR upper driveshaft yoke NEEDED
- Belt/pulley squeal when starting - 496 HO
- Am I just hallucinating or being paranoid??
- 454 block replacement
- BBC MAIN and ROD WEAR QUESTION
- Need help with Dana billit trim tabs
- oil galley plugs
- 496, switched to thru prop exhaust, hard to start when warm
- 468 Merlin blocks and heads
- 800sc question
- Mounting a tank in a stepped hull?
- Engine has trouble idling down
- What vintage
- water in motor
- 2010 Verado 300's
- Help My Please ! 500 EFI Mercruiser Backfire !
- Imco Thumper Power Exaust ?
- 502 efi overheating.
- 454 Starters Driving Me Mad
- Bellhousing and coupler for 454 and bravo
- really could use your guys knowlwdge
- What is too low for water pressure?
- Merc 496HO High Exhaust Temp @ Idle
- Dropping RPM over 3K – almost like starving for fuel – opinions?
- Port manifolds&risers not getting enough water.
- Labor cost estimate alpha to bravo swap
- dyers superchargers
- How to identify motor with serial number.
- Engine developed "chirping" sound from stbd side exhaust
- Long row back
- MEFI 1 350 losing RPM
- Teflon Tape on EMI Exhaust Manifold Fittings?
- 496 Oil Cooler Upgrade Question
- Hatch Hinges
- Audible beeps
- Trim Tabs causing engine to stall, low voltage
- Water Pickup Location !!!
- Lost oil pressure AGAIN FN FREAKING OUT