- 502 MPI Fuel Delivery Problems!!!
- Compression Ratio vs Blower Boost
- Upgrading Engine Ideas
- 496 Thermostat
- Found this in my oil filter??
- Aluminum Fly Wheels
- Motor flush and strainers.
- A good supercharger read
- 305 meruiser 2 barrel upgrade?
- Its Bravo Xr
- What Plugs for 454
- starting problems when hot
- Engine oil / trans cooler????????/
- 502mpi running rough at idle
- Any of Pictures of Blower Shop Intercooler end caps and how they actually seal up ?
- Blown 502 running rich
- Benneton Marine
- Parts for an Ilmor - where to buy?
- Oil full of water... what to do
- Carburetor experts only please
- Rusty Water after layup? How dangerous?
- OT- Marinized mazda rotary dyno sheet?
- Procharger
- Anyone need a pair of 496 ho's?
- KPM 112 / Mercruiser replacement pump body's
- ecu programing
- High RPM oil pressure
- Water in oil help!!!!
- Hey Oso
- Chevy 572
- retorquing head gaskets
- 2000, 502 mag?
- Removing both nuts to install new no-drill Simrek showers
- smart craft
- 2006 496 mag alternator question
- cruise control
- 502 headgasket
- 502 oil pressure question yet again
- 454 mag mpi swap with 500hp carb
- Hard cold starting carb 502 (Choke problem?)
- GPS speedo question
- 496 changing sparkplugs ?
- Help me get parts for my Baja (interior)
- Best sprk plug for my engine
- Need advise on 500 efi's
- 496 Mag Ho misbehaving...help!
- Thoughts on Teleflex hydraulic steering?
- Mufflers ??
- Instruction for Sea water Pump HP 500
- Help Needed!!!!!!!!!!
- Need Advice
- 496 mag won't start
- 496 mag exhaust? anyone?
- How do you backflush(clean out) on 496 engines
- Blew a fitting off stbd exhaust manifold 496
- Popular Hot Rodding's got the new Mesa Racing Engine Article
- Is this for real???
- Skater 36 Propshaft Positioning
- mefi tuning question for experts
- late 496ho Water pressure sender
- oil temp relay?
- Thoughts on Bennett trim tabs
- A better Merc mechanical fuel pump (seawater pump mounted)?
- Sleeve in a 500HP???
- Oil Dipstick Tube For 454 Magnum
- Drives hitting swim platform.
- Fuel pressure loss (tank/check valve)
- has anyone tried this?
- Stereo Noise
- 2000 500 HP EFI with starting problems
- 500efi-575sci
- Small blocks and super chargers
- water and oil don't mix
- Oil and grar lube
- spark plug advice?
- Anybody know Guardo marines website ?
- water in gas
- Full mooring cover with side sun protection
- Need help on the oil bypass valves
- 2000 500efi, how good are the internals?
- switching from bravo 24 to 4 blade cleaver
- 454 magnum mpi idle help
- Tach lead ( what wire)
- Drive stabilizer brands ??
- 01' 502mpi Fuel Pump Problem
- Need some info on an oil thermostat set-up plz
- Merc 383 - 4 Winns 24' Liberator Prop Question
- Question
- Bravo side water pick up
- Help, click...click..click but no start
- 1996 502Mag MPI Fuel Pressure
- 502 mpi oil leak, plz help engine gurus....
- Crossover with or without t-stats?
- K plane help!
- help
- Merc 6.2 ????????
- Outdrive Gerus - can you help
- Need help with cooling system, 454 Mag MPI
- Dart Compacted Graphite Blocks
- ? K plane seal and bellow
- 496HO rough idle
- strange cavitation issue 26' sleekcraft TRS
- boat wrap
- 454 mag whats a fair price
- Spark plugs?
- Max EGT Temps???
- do not use
- 502 headgasket
- World Merlin ( Teague 509 block)
- Teague - World 509 Block Ring Gear
- Looking for new vinyl interior for Baja 29 Outlaw
- ??oil temp sendor size on Mercruiser relocator?
- GAS Question
- Precision Marine, Kenner La.
- Keith Eickert Sea Strainers
- Big Stuff 3
- Castrol Syntec Synthetic 20W-50
- Lower shift cable replacement....How hard?
- What bolt torque?
- Gaffrig speedometers problem
- 500 hp exhaust
- How important are coolers?
- Sensors
- Question on Hydraulic Steering Column
- Merc timing V6 module/msd questions
- problem removing volvo engine from transom
- What kind of sea pumps are these?
- How do I troubleshoot electrical?
- steering hose??
- Wanted: Performance Outboard Mechanic in Phoenix
- What makes a good V-bottom?
- 39 MTI speed with 525's ?
- questions for 500hp owners (dont hate me)
- Trim pump fittings/adapters
- 502 performance
- weiand blower pulley
- Boat would start but stumbled and quits???
- Velvet Drive "Neutral Switch" Question
- 496 HO horsepower chart needed
- External pickup pros & cons?
- ECU Calibration, 1994 vs. 1996
- Mermaid A/C Help
- (Cigarette) HI-TECH Hawk Super Sport 18'
- 502 mpi vs. 502 carb
- 6.2s suppercharged ???
- The best synthetic oil for flat out racing
- Cylinder head durability
- All Zerc's?
- Boost Level and A/f Ratios
- 575SCI sea water pump replacement ?
- engine steam
- 525 EFI Overheat Problem
- Gaffrig Gps speedo NG
- Leaking KPM sea strainers ?
- Cubic Inch Displacement formula question?
- Hp500 ???
- 496 help needed.
- RTV on exhaust manifolds?
- 525 EFI Header Gaskets
- NEED HELP, Engine dies after starting up
- Buna-n Orings ok to use for Captains Call actuator???
- Carb question
- Where is water pressure sending units
- engine temp question
- restrictive oil system?
- Pulls to right...
- bravo spacer
- 502 stuttering problem at 3800rpm
- Hydraulic Steering
- DART PRO 1 vs AFR
- Anybody Know about a Uniden VHF radio/telephone
- Perko Wiring for Dual Battery Setup
- WIX 51060R Oil Filter Capacity???
- Need help... someone with a bad Bravo 1?
- B&M 250 parts interchange with Weiand 256???
- 502 mag 195 hrs
- HP500EFI Rocker arms and seals, distributor rotor and cap
- Blower carbs
- Port 502 MPI just quites
- Blower question
- Blower motor air to fuel ratios ??
- Redline Oil
- Merc 502 415hp FWC Question
- Anybody using MEFIburn software ??
- SBC oil flow confusion
- Sonic Battery connection???
- Oil Pump Failure?
- braided oil lines
- 257 Mirage Selectable Exhaust Leaking -- Seeking Replacement Solenoids
- Vacumn at WOT?
- How much hp are you making with a 4150 base carb?
- No spark with MSD all in one
- fuel sender calibration
- oil help
- Two Speed Trannys for Diesels
- Part # Starter
- TRS oil cooler line fittings...
- cam duration 228/ 236 @50 .601 lift on Intake exhaust with a 112"cl
- Detroit Diesels
- How Much Should a MSD Box Cost?
- A/C Question for the F-350
- 2.5 Mercury 280hp need oil
- Fuel Meter/Gauges for 525's
- Cathouse Performance Marine
- Drive leak
- Mefi 1 Computer
- Help, Trim Tab Wiring
- Engine Hatch stops
- Fuel pump options
- Volvo Trim Senders
- re-rigging
- Calling Rookie - Jason
- 496 mercruiser will not start
- Couple ?'s after motor install
- twin 496 diffrent rpm's
- K E Race Pump
- tiller arm question
- can someone check my trim problem question please!?
- Having a trim problem
- 496 Mag Hard Alarm?
- power steering fluid
- help with harch actuator
- 502 Efi Manifold Air Temp Sensor
- 496 HO high water psi question?
- Source for Steel Flywheels
- 1996 502MagMPI Spark Control Module
- Need 496 pulley and belt, anybody have one laying around?
- rebuilt 502 burning oil
- help, loud noise and motor dies 454/trs
- Thermostat question
- Hydrocruiser ??????? oil related
- Synthetic Motor Oil or NOT ???
- Need some help...here are the symptoms
- 1996 7.4 carb. ignition timing
- HP500EFI valve springs
- 34 cat engine forward mounting questions
- Chicago to New port richey any empty trailers leaving ??
- $ 3500 to play with, lets make the boat faster
- Boat Headers why so expensive?
- Fuel Gauge Problem
- Looking for repair manuals
- One More Time Mark Prinz Is A Thief
- Blower Motor, Aluminum Shavings in Motor.
- Who rebuilds carbs, NJ area?
- 496HO with Raylar kit and Whipple Stage 2
- Questions on 565 Whipple Build-Up.
- 500hp carbed
- paging "bearpaw"
- 454 to 502 swap
- Shore power/battery charger issues
- vinyl repair kit
- gps wiring
- Super Deal on NEW Blower Motors
- merc hp500 seawater/fuel pump
- Bravo Spacer
- Fuel filter and pickup
- Mercruiser K-plane indicator cards????
- Wilmington, NC Does any member live near her
- Mercruiser 525 Experts: HELP
- Bad Ring Gear
- Marine Vinyl Re-upholstery - StLouis Area?
- 600 sci motors with no top end
- How to make 550-600 Hp in aŽ540
- 454 thrown rod....need to upgrade
- 500EFI Camshaft
- Wierd AF at Idle
- how to change from RH to LH prop
- mph dose'nt match rpm
- 700sci engin oil recommendations
- Another Turbulator question
- 2003 MAG 350 MPI - idle unstable (650-900RPM)
- motor questions/opinion
- Cold Start Problems
- Mildew on Boat Cover
- 96 502 mpi fuel/sea water pump oil leak
- 700sci fuel line size
- Procharged 502 EFI plumbing/bypass question
- melted gimbal bearing grease ????
- 3/8 hose
- High oil pressure
- Drive not trimming out
- 496HO Blowby
- Threw a blower belt
- Single or dual Carbs on a blower?
- RPM limits on 3.0L Mercs
- I need to add to my intercoms system
- Raylar - 496 water leak question?
- 500hp carbed 500efi
- circulating pump seal
- Rpm's are dropping. Please help.
- trim pump?
- Mufflers or Turn Downs
- Leakage around steering arm
- tranny's ordrives?
- Where to install DANA pop-off valve on 496 HO?
- 454 Mag MPI - Black Smoke - Fouling Plugs
- upload pics
- 496 fault code low oil psi str
- Wiring help...starting our new 385 stroker on test stand
- HP500 94 oil cooler lines need help
- Engine Won't Turn Over
- High engine oil temps?
- 500HP oil cooler lines picture
- 502 rev limit
- prop/engine/performance
- bellhousings
- how much oil -525sc
- 496 loss of RPMs
- 502 carb linkage
- using non marine distributors?????
- 454 mpi (no power)
- gauge light bulbs
- thunderbolt ignition wiring
- Help needed again.....
- Impellers
- piston/head/valve clearance
- Racing Oil Filters
- Engine temp for a supercharged 502?
- hp 500 cam
- how much power from mpi
- Paging Griff
- water problem on 454
- Vats shut down at machine shops
- Baja Steering Cable
- 496 mag HO timming
- Need 4.5" stainless tubing
- Steering wheel slop
- 1988 Chris Craft 312 (kc 460 omc's) Thoughts
- Dana Marine OSO Discount
- removing the advance in a mallory unilite?
- Holley 800cfm rebuild kit?
- Max boost w/ stock injectors/fmu
- 525 Efi Oil Pan
- 1997 502 Mag Mpi - gas pump ?
- Really Good Oil Filter Cross Reference Site
- avon searider.
- Breaking valve springs
- loose throttle levers
- 98 5.7 Efi
- Motor Question
- Fuel Regulator Vacuum unplugged ?
- hours on new engine
- 496 to 500 EFI Swap
- piston inspection
- Ignition System
- HP-500 Manuals in PDF format.
- Fuel question.....
- Breaking Roller Rockers!
- how much power with thru prop exhaust?
- help with merctrans rebuild
- 525sc - what thermostat and engine temps
- Bad gas??
- oil filter
- Factory to Mini Starter, where do the wires go?
- gil exhaust one side steam
- 28 velosity 502 sick
- 502 rebuild Question
- water temp guage issue
- What type of sealant for blower bearing plates
- 500 EFI searched without clear answer
- Rocker Arm Torque Spec ?
- Is the timing causing my idle problems?
- Weird Oil Pressure Issue
- Engine suddenly drops to idle but no codes or warning beeps???
- Kill Switch/Relay question.
- 454 main bearing clearance..
- Water Pressure
- 525 EFI Serpentine Belt
- Aftermarket temp sender on 496ho
- Need Harmonic Balancer
- anyone know specs on 525 engines
- 454 mag heads different
- holley 800 Jets
- Blower boost,Merc 600 SCi
- Leaking Flange on CMI's
- Ignition timing?
- Procharger fuel enrichment ?'s
- installed crossovers now no water temp
- adhesive for fiberglass?
- taking resonators out?
- Is this an ignition coil issue?
- Spark Plug Wires
- wiring trim switches
- Black transon w/ 500 efi's
- FelPro Valve Cover Gaskets
- send off computer for tune
- SBC valve covers
- Tachs adjustments ?
- Check valve Issue ?
- boat riggers
- My 540 lost some power...need some advice.
- Leaking oil at cruising speeds
- Stereo Questions
- crazy wiring, msd
- stock exhaust with flappers wanting tips..
- best bang for buck on 35ss
- Engine Going Cold After Coming Off Plane
- Spark plug for 454 Magnum Carb, NGK or Champion or ???
- Hesitation problem under load 454 Magnum, I need some idea's
- repowering 7.4mpi with 496
- Generator in a 35 Fountan classic
- 496 Alarm going off
- Oil Pressure-how much is too much?
- mercruiser 454 370 trs
- emi manifold issues
- No Spark Question??
- imco full hydraulic steering question.
- 496Ho, need some help?
- Spark Plug electrode burned. Any ideas?
- reversion or manifold problem
- Gil exhaust with sidemount?
- Sticky indicator
- Thermostat issue?
- fuel gauge woes
- Liquify Carbon and Varnish
- CMI Headers cracked
- Intermittent fuel pump problem
- good set of headers for a 454 mpi
- WOT problems
- Need a good placard....
- Eddie Marine exhaust
- Mercury Quickleen
- Is it over? Ethonal :(
- Thru hull exhaust cutout dimensions
- Exhaust Extension
- Water in bilge problem identified...now to fix it
- HELP with fuel rail plugs...
- Hyd steering presure adjust at idel?
- Tuning update / New issue
- BBC Serpentine conversion???
- Cmi Full Tails
- Any ideas????
- most popular dry sump for offshore
- Bellows Question
- Installed Stainless Marine Exhaust and LOST RPM!
- 91 Wellcraft(383's) OR 91 Powerquest(454's)
- suggestions for starters
- Oil Build-up On Top Of Pistons
- IMCO inner transom plate conflicts with steering lever?!
- Steering adjustment?
- Gear Lube Bravo 1 XR
- 454 mag??
- merc oil cooler/filter lines
- power steering pump replacement
- Crane Ignition Box
- Another overheating question
- spark plugs 454mpi procharged
- Pressure Readings On Trim Pump
- What's it worth?
- Oil pump, HV or standard?
- 525 impeller change
- ECU Question (MEFI4-A)
- 496 ho lost RPM
- HP500... What Spark Plugs?
- Engine Loading Question
- Oil pressure - engine on the stand - I can't search well :-)
- Kiekhaefer tabs
- 496Ho Code help
- Merc part guys.
- Engine miss & backfire
- help low rpms
- Procharged 502
- exhaust manifolds
- Tired motor ?
- Need Recomendation
- Adjustion Rolller rockers, and clearence
- 34" Center, Tall Decks and E-Tops
- Crane 731 cam guys
- 575SCi - Alarms going off. WHY? - need help
- LCD Monitor screws up
- 496 ho plug wires are $500!!! Please read
- Plug Diagnosis
- Ignition Timing
- Volvo Penta Synthetic Oil
- Bilge pump switch question
- Dual Ram Imco hyd. Steering ..... air in System ?
- Any reason a new engine would have less break in oil?
- Diacom evaluation
- oil setup question
- Oil Pan Options
- Gentle Wax/Cleaner
- LS vs 350Mag weight savings
- 454mpi with procharger loses power ,smokes,etc...
- Engine temp
- Any longterm updates on 496 Mag HO's with Whipples?
- Bravo 1 RPM
- B&W 72C Question
- How Fast Is It??
- Science of Synthetic Oil Video...excellent production
- Need help/advice
- 575 Sc's
- What is best????
- Risk of fresh water flushing ?
- 496 exhaust
- 454 wieringdiagram? Transsmision TRS?
- 700sci oil filter
- Mercruiser Tunderbolt distributor
- Need help with electrical gremlins
- Merc HP 500 carb replacement??
- Who makes this pump????