View Full Version : General Q & A
- TPS Voltage for idle on a 525 efi?
- Sierra oilpan?
- Let's talk ignition
- new to owning a boat got a boat that needs love coming
- NA 555 build CR
- 496 starter bolts?
- clearence issues with 20.5 sport skier 496 need help
- Trim tab angle question (how high is high enough?)
- Water pressure issues!
- Boat stalls out around 3000 Rpm
- HELP! 87 wellcraft nova wiring schematic needed
- sierra extreme lower shift cable - know issues? mine broke
- Trim solenoid question????
- Jesel Belt Drive, Crank turns Cam and Belt Stationary
- 502 Dead Stalls above 2400 RPM - Need Help!
- Jesel cam belt drive in a marine/endurance application.
- 2005 525 starting issue
- Strange drive noise
- Holley 800 DP running rich at idle - causes?
- Which one?
- Proper cam choice. What does it mean?
- Spark plug gap confusion, 502MPI
- 575SCi
- Has anyone used Ethanol Shield?
- Add on steering issue. Please help!
- Have I been Hoodwinked?
- Need Help with Location of Thermostats in 500 EFI
- Lazy RPM on 396 stroker chevy
- carpet
- Trim pump fluid?
- looking for piece that goes on back of m3 procharger
- 496 ho surging/rough idle
- need mechanic, cape canaveral area
- 1997 2.5 260 EFI idle and start issues
- Filling gear lube reservoir
- Brand new quick fuel carbs engines won't run
- Need help identifying a motor - 572 or 454?
- clear (dry or glazed) plug fouling??? Stumped....
- Steering cable and helm upgrade, has anyone used the HPS or EXTREME (seestar teleflex
- What are symtoms of power steering pump going and/or not working well??
- Mysterious oil leak. Gen VI 502 crate motor
- West Coast Offshore - Anyone know anything about them?
- Any speedo tube fixes
- Bravo Rattle - Alignment Woes
- 502 injectors
- Stainless marine Water pressure test pressure?! Help!!'
- Installing a dual relay assembly to speed up my actuator (confused on switch wiring)
- 500 efi noise re-visited
- Is there a special alignment tool for this coupler?
- Working on solving water pressure problem
- Ignition issues 420 merc
- How do you stop reversion?
- 3k RPM+ Bogging Issue '96 7.4LX MPI
- Stanless Steel Welding- in Northern Indiana
- 2007 Suzuki DF250 milkshake
- Comp Cams - Issues with rocker arms, premature failure.
- smoking gun clear youre messages
- Question on aftermarket exhaust and risers
- 525 upgrade question
- Exhaust water flow question?
- water pressure problem
- any jet ski tech's here
- sunpad hinge
- 496 manifolds on a carbed 454
- New Gen 7 540 forged shortblock offering!
- Drones in Zaks bay NY
- NGK 5673-7 or -8?
- 496 HO coolant?
- O2 sensors dead after short use???
- Dual helm steering problems
- Fuel presure on 496 ho
- Drive wouldnt lower or raise
- Aeromotive Fuel Pump - Losing pressure
- Performance problems
- 496 HO won't run above 4100 rpm
- Need Starter Advise gm572
- 500 efi will not rev beyond 4300 rpm
- 575sci running rough
- Another 496 alarm thread!!!!!
- Whipped charger
- Marine grade wiring?
- taking mild thunders advice
- rotella oil
- water pressure too high
- 496 Mag HO WInterization Questions
- Alarm wont stop sounding ? Any ideas why ?
- What are my cam specs?
- Another Reversion issue with Gil Risers
- Convert 496 H.O. Mercruiser to MAG
- 500EFI starts to fall flat after 2500rpm -Anybody?
- Oil change with oil cooler under motor
- $200 Mechanical survey saved me 15k!
- 496 fuel injector problem
- shift cable end
- Help with Corsa Exhausf Baffles!
- New hydraulic steering install hooking up rams
- Bleeding hydraulic steering
- 383 Small block with EMI Thunder and +3" stainless risers, Cooling water flow
- New Hydraulic Steering Install - No Pressure and Other Rigging Questions
- 525EFI question
- Hydraulic steering return line
- First time poster with possible spun hub
- What are these?
- Filling Outdrive with Gear Oil using pressure?
- DUI Timing adjustment help..... and MSD parts interchangeable?
- A couple 575 sci questions
- Carb size
- is this a good cam/set up for my 454?
- Crane 741 in a 500 efi
- Camshaft
- engines guys chine in please
- Gaffrig GPS Speedometer
- Smart Guys - how about a 500HP budget recipe?
- 496 Mag Heat Exchanger
- Kodiak big block exhaust manifolds any good?
- Hydraulic steering set up..
- IMCO Fuel Valve/Tank Selector Problems
- exhaust elbow tube extensions - slash cut questions
- Will this boat have water reversion issues?
- Best source for SS Rub Rail?
- Performance distributors Ignition timing
- zero effort control parts
- Holley EFI - global file for 598
- Newbie needs advice on which boat
- 575sci refresh
- Holley EFI in a boat - Doesn't Repeat
- 88 Baja stalls at high rpm
- 454 Magnum cooling issue
- Stbrd Motor will not crank over!
- some 4150/4500 dyno info
- would you notice 100 more ft.lb. torque
- Hydraulic steering Opinions and advice
- 500 EFI limitations?
- Bravo U-Joints - Older Drive
- Water pressure bypass
- 496 issue - loss of power to fuel pump?
- TRS anodes
- BBC 555 dart vs rpm intake
- Question for MegaSquirt users
- Spark plug wires
- 496 ho intermittent stalling above idle
- Need help - What head gasket for Chevy 350 bored .40 over.
- Easy buddies on the drive - what grease
- Mercruiser Aluminum 496 manifolds with out water rail worth $450?
- Hatch Actuator Issue
- Thunderbolt IV ignition problem
- One riser hotter topic
- Leaking Gil Sea Strainers
- Is there any fairly easy upgrades I can do to a 454 efi 385hp magnum?
- Who makes cast iron oval port after market heads?
- Livorsi Trim Question: Goes down, trailer needed for up
- 500 efi rebuild?
- 2011 verado 300 help, vibration when in drive
- Pertronix ignitor III ignition opinions
- Best Price on sbc GLM aluminum manifolds and risers
- Refreshed and are now ready to install
- 496HO Fuel Filters
- 500EFI Dies after 30 seconds to 3 minutes
- Can Oil Pressure Gauge be used as Fuel pressure Gauge?
- Speaker boxes
- MEFI 1 350 issues
- kiekhaefer throttle rebuild.
- Cherokee Power Boats (26' "Dylan")- Anyone know anything?
- Hydraulic Steering Fittings
- Will 496 mag DTS-box work with ordinary wire gas-trottle?
- BBC - Blue Print Blocks
- What are people using for under platform swim ladders?
- 496 ho won't start
- Help, mercruiser wont rev
- whats the best way to trim both drives with one switch?
- Drive trim
- 1 1/4 ID hose
- msd?
- Replace two handle Gaffrig control with single handle?
- Boat sunk, salvage
- EFI question - non boating
- What engine needs 6,000,000cfm to operate?
- 0-35psi or 0-60psi water pressure gauge?
- Fresh Water Cooling plumbing with Stainless Marine Exhaust
- Where can I find odd ball SS studs?
- Where to mount water pressure sensor on 496?
- Oil pressure gauge not working
- amazing the things you catch when you surf craigslist too much
- Questions about coupler/motor mounts/alignment
- 95 454 EFI horsepower
- Gauge Pressure Style Help
- Superchiller water flow testing
- Can you rebuild a HP500 power steering pump
- Boat cover north jersey?
- 88 four winns liberator bogs under throttle
- Internal Flappers
- ISO rubber feet for Fountain bench seat
- 500 efi vapor lock
- Contemplating buying formula sr1 311 as first larger performance boat.
- Gil Question
- Anybody running a LS engine with cast manifolds- need to know engine width
- Mercury hour logging
- High performance piston rings
- X dimension and props
- Replacing Impeller - Just the impeller or entire assembly?
- 500EFI cam, what valve springs
- 35 Fountain with rotten transom.
- 500 EFI fuel pump - intermittent problem
- 500 EFI valve spring replacement
- Mounting an Aluminum Swim Platform
- Merc 496HO Fuel Pump GPH?
- Lift install
- Merctrans drain plug size
- Engine oil dipstick options
- How far? Exhaust from flapper!
- Where to buy parts in Atlanta GA???
- Motor Mount Options
- Lower shift cable tool 91-17262
- K plane hose end size question
- port a potty / pump out conversion?
- QV4C Valve Lash
- Difference in engine voltage while running
- 177 blower bearing.
- Backfire through carb
- 502 MPI-- no power to cool fuel pump!!
- AFR Gauge question
- Any generac techs here ?
- J- bolt clamp
- Irridium plugs for a 502 MPI motor???????
- Rocker roller coversion for 502 - push rod length? - need valve train expert
- Need $10k in mercury parts- looking for best deal
- Vorec 350 rings
- Jetting help
- Valve springs, valves and push rods
- Fighting Reversion - We've been doing it all wrong
- Steel or AL flywheel, and HP coupler
- Stainless Marine/ Wet to Dry conversion
- Cross over with low temp has t stat and bypass
- Thunderbolt IV Problem
- round port or square
- FiTECH Fuel Injection Systems
- Old school throttles. HELP Please
- 548 compression ratio ?
- Engine surges when warm
- T-stat/ thermostat housing bypass
- Prop help, please
- Tach problems
- Another reversion thread.
- 454 mag mpi timing
- black smoke and dies when the secondaries open
- Anyone from Lake Texoma?
- 4150 to 4500 adapter
- replacing cap and rotor - ignition module ?
- Delco Voyager for 454 with a B&M 250?
- Drive shower length and cavitation.