View Full Version : General Q & A




  1. External flap
  2. Bravo One Tie Bar issue
  3. 97 Baja Boss Hammer
  4. Throttle Adjustment - how difficult
  5. What all is different between the 502MPI's "97" and "98" ???????????
  6. Question on new A/C units Dometic vs Webasco vs Mermaid
  7. Emi exhaust still reverting
  8. 7.4 motor runs then it don't
  9. bravo 1 to Bravo xr price difference
  10. How to tell the difference ?
  11. Bravo dual water pick ups
  12. CMI header overheating
  13. Best Spark Plug To Use
  14. Mercruiser 5.7 EFI - knock or ping under heavy load
  15. 575sci what hyd rollercam to use
  16. Do I need water pressure gauges?
  17. well its official fourhoaresman did my tranny in
  18. Hesitation / Bog under acceleration
  19. 454 MAG vs 502 Mag fuel curves
  20. Thunderbolt IV question/ issue
  21. Water Pressure Gauges
  22. 6.2 mpi intermittent stall
  23. k&n oil filter on billet aluminum mount.Almost impossible to get off. Anyone else.
  24. Extension box - external steering
  25. 500 Bulldogs
  26. only one company that makes headers ??
  27. Looking for a good 350 Vortec setup.
  28. quickfuel carbs
  29. shift cable adjustment tool/ plate for a OMC Cobra (1986) drawing or CAD file?
  30. Triple 500 HPs to twin 575 SCIs
  31. Question about B1 transom assemblies
  32. What cam button???
  33. Exhaust port deposits
  34. Walmart oil prices.....
  35. mpi running rich at idle
  36. Freeze plus Chevy
  37. 500efi intake gasket
  38. What Temp Sender is This?
  39. Older 110s kplane
  40. Mercury 1100 Valve Lash
  41. T-stat housing plunbing
  42. 489 Temp weird temp issue
  43. What Engine Oil for Superchaged Engine?
  44. Installing thru hull tips
  45. Questions about big power
  46. 548 or 572 BBC N/A Build Assitance/Advise
  47. Alternative to Rubber Exhaust Flappers??
  48. Deutsch or Weatherpack or Metripack?
  49. Water pressure too high?
  50. Sierra vs. Mercury / Quicksilver
  51. Gen V marine 502
  52. catamaran planning issues. 30' Chris craft
  53. Replacement 5.7 350 engine
  54. Holley EFI/DIS Conversion
  55. 2003 fountain 29 cabin door gas assist cylinder for top flip up door
  56. 500efi head gasket
  57. 496 ho drive coupler question
  58. Speedo hook up?
  59. Tachs not getting signal from smartcraft
  60. Engine swap question
  61. 454 blower update.
  62. Help - Merc 454 can only get to 3900 rpm wot
  63. weird distributor problems...
  64. 454 Mag MPI: Strange cold idle….almost sounds like a 330hp for a few minutes
  65. Wiring question on an engine swap
  66. Thermostat Questions - Notched Gasket?
  67. HaxbySpeed
  68. after market exhaust 350 mag mpi
  69. Need Someone Smarter Than Me
  70. Thru hull exhaust question
  71. What's the purpose of the shift bracket?
  72. 496 Position Sensors (Cam & Crank) Question
  73. oil pan related question
  74. installing transom assembly
  75. Questions on Engine Modification xm270hr cam
  76. B/W Tranny dipstick plug help
  77. well do i have the start of a trans prob
  78. Dry sump tanks
  79. What type are these switchable exhaust tips?
  80. Marine Machine steering cylinder seals
  81. 500 efi ECM and harness question
  82. Trim pump not sounding very good, Bravo 1 drive
  83. Tach acting strange??
  84. Thru Through Hull Transom Low Raw Water Engine Intercooler Pickup Grooves Channels
  85. how to convert to dry exhaust???
  86. Looking for performance increase in 454 magnum EFI and prop advice.
  87. Loose steering
  88. How much to fill antifreeze container in a 525?
  89. 496 HO Burning Pistons
  90. Flame Arrestor / Filter Elements
  91. Another fuel system setup question - fuel / water filter before or after mech pump?
  92. Let the guessing game begin as what broke in 502 mag EFI
  93. 3" vs. 4" thru hull exhaust
  94. Bilge Pump Question
  95. 98 502mag mpi surging
  96. cover bled hint of color onto white vinyl how to get out
  97. HP500 oil filter mount question
  98. Anyone used ggb inserts in dry tails.
  99. Cam intensity question
  100. 525efi Tach reading high
  101. How to get a little heat with crossovers...?
  102. Boat with shorties question
  103. Who has had issues with afr heads??
  104. Running two different styles of pickups on Bravo drives
  105. Fast ez-efi, holley terminator ?????
  106. Cobalt 342 motor troubles
  107. 525 EFI alarm 2800rpms
  108. How do I set timing with no marks on crank?
  109. 525 efi power loss
  110. Setting X dimension
  111. 525 EFI Too Much Water Pressure
  112. 7.4 lx efi falls on its face and hesitates
  113. Windshield Wiper wrist bayonet connector?
  114. 4 blade prop question
  115. 502 mag mpi?
  116. chicken or the egg, ECm or guage
  117. One for the gear heads.... or maybe a stupid question...
  118. Timing a delco voyager distributor
  119. adjusting valves with intake manifold installed?
  120. Both trim tab switches and drive trim switches not working
  121. Motor does not run right at low RPM
  122. Rudder Spacing From the Hull ??
  123. Flushing with thermostats (with holes drilled)
  124. K Plane hydraulic fitting available lengths? Part numbers? suppliers?
  125. 96' 502 mpi, low fuel pressure
  126. Stupid mistake - have I done any damage
  127. Testing an ignition module
  128. looking for drive shaft housing & bearings
  129. Water pressure question, Before I put it back together?
  130. Rochester question
  131. 525 EFI refresh lifter issue!!!
  132. Carburetor to EFI conversions
  133. what kind of boat is this
  134. 525 efi headers
  135. Has Anyone done high compression e85 motors on a big boat?
  136. TRS drive install
  137. 500 EFI noob help
  138. Detonation melted my piston..... but what caused the detonation?
  139. 1991 Baja steering problem
  140. What fuel pump for a 502 making 600+hp.
  141. 2003 evinrude 115hp 2atroke outboard
  142. cam info needed
  143. zero out tach
  144. What gasket surface cleaner?
  145. Cometic gasket surface RA
  146. 26 hustler vs 25 active thunder tantrum with similar power?
  147. 500efi head upgrades
  148. Merctrans linkage/brackets help (man-shift)
  149. What's a good price and will it work ?
  150. 502 burning up water pump impellors.
  151. vertical stack batteries
  152. Looking for proper Mercruiser service manual p/n's.......
  153. Closed Bow or Mid Cuddy open bow?
  154. Cleaning under trailer bunks
  155. 2 stage sea pump rebuild
  156. 496ho Impeller question
  157. Wasted Bravo 1 swivel shaft/steering pin?
  158. Dual water temp sending units on HP500??
  159. crossover on hp500
  160. upgrading to 33c cables
  161. Crossover temp problem HELP
  162. Dual Ram Power Steering Issues
  163. CMI dealer
  164. O2 Sensor in Riser
  165. Recommended fuel line sizes to support NA 575 HP
  166. y pipe diffrence
  167. Holley carb paint / powdercoat suggestions
  168. Need an answer to back pressure
  169. Blower carbs what to run ?
  170. Ok, Ok, I need a new steering wheel...
  171. Dropped a valve!!!!!!!
  172. Bravo Drive Coupler Grease Cup?
  173. Livorsi / Vessel View / Vantage View ? wanting to upgrade dash
  174. What size is a 86 cig mistress 35??
  175. Are outboards really that much cheaper to run?
  176. need help with a simple wiring issue
  177. 496 or 502??
  178. Power Shift
  179. 500 Efi fuel pressure regulator?
  180. Bouncing Tach, need more suggestions already searched! Confused!
  181. H2x vs donzi
  182. hp500 distributor fit on 500efi
  183. oil temp
  184. Lift points on a '83 Scarab 377
  185. Help with new 540 flywheel selection!
  186. 454 MPI Random Power Loss
  187. Bravo Trim ram - only one working?
  188. Fuel pump Q?
  189. What is wrong with these head gaskets
  190. aftermarket alum heads..clear 454 mag piston domes?
  191. 454 mag mpi lack of power? Idles and revs fine, no miss
  192. How often do your routinely clean your air intake(s)
  193. Speedometer pickup?
  194. Spintron
  195. velvet a73c
  196. 525 water pressure problem
  197. BBC Engine missing side caps?
  198. Morel 4603 lifter noise
  199. What widebands you guys running??
  200. What Prestolite pump for an Alpha 1 '86 outdrive and the differences between them
  201. What is this??
  202. Need help with a inject blown 572's that will not run in gear
  203. anyone have any info on Opcon/Imco whipplechargers?
  204. Carpet under seat bottom bases or not?
  205. Springs pressures and valvetrain life
  206. Nothing left to check? VP 5.7GSI wont start - good fuel pressure, good ecm, wiring
  207. Formula 330 SS re-power
  208. Blowers 454 engines and compression ratio?
  209. What cleaning solution to water in oil cooler and lines?
  210. Bravo 1 props
  211. Cmi air cylinders
  212. Smartcraft/AGI Box ?
  213. Are the mercruiser M1 camshaft still available?? I need One
  214. Very high water pressure
  215. 383 mpi , buzzer , stalling help please
  216. 525 EFI intake gasket options
  217. Best product for bedding trim tabs +transom assemblies
  218. Looking for feedback on carbed HP500s
  219. Wrinkled Looking Vinyl......what's up?
  220. getting rid of the vst tank
  221. DUI Live Wires
  222. Dominator tuning
  223. Wierd tuning issue with Whipple engine - Holley ecu
  224. Bravo XR with finned top cap torque spec
  225. SSM prop pitch
  226. ARP head bolts for 525EFI part #
  227. Valve Cover Breathers: What Works?
  228. 525EFI oil pump driver/sensor position
  229. Hydraulic Steering
  230. b&m 250 mpi blower questions on a 509
  231. mk hammer marine
  232. Flushing tubular oil cooler... yes or no??
  233. Plumbing for flushing or trailer running.
  234. Exhaust Bolts
  235. Old or new partnumbers oil pump 525 EFI ?
  236. Going through electric fuel pumps. Why?
  237. Need a good Prop Shop In Portland Oregon??
  238. 8.2L Impeller Replacement
  239. Oil pump help
  240. AFR with procharged setup
  241. What size headers
  242. 2008 mirage wo6
  243. Pop up cleats
  244. 3/16 inverted flare hose fitting
  245. difference in a 496 mag base model and a 496 mag ec model
  246. Any ideas on where to get parts for Captians Choice Exhaust? 525 sc
  247. how many quarts?
  248. Broken Whipple Pulley Studs
  249. Change plugs after fogging?
  250. Bosch oil filter, thread buggered up
  251. Tranny vs bravo boats
  252. Did I just blow an engine?
  253. 217 mirage fuel gauge
  254. Intake manifold gasket question 454/330
  255. Remote Oil filter
  256. mechanical fuel pump questions on bbc
  257. Fuel injector cleaning
  258. 2 power steering pumps or just 1?
  259. Beehive Valve Springs. What if any are the downfall of these springs??
  260. intake manifold torque lbs
  261. 1987 wellcraft 26 spyder
  262. 496 Vortec Cam Swap to Crane cam?
  263. Cool fuel replacement to Aeromotive
  264. Kohler 5E - Genset Help
  265. Gasket kits question...
  266. Marine grade silicone
  267. Switch / circuit breaker help??
  268. Swim Platform Material
  269. Source for stainless "T" in 1-1/2 inch
  270. Speed Loss From Speedo Pitot?
  271. Engine builder
  272. Cmi e top header question
  273. 575 sci wont start
  274. rocker arm stud diflection
  275. Where to buy hatches
  276. 496ci 585hp tuneup
  277. Mercruiser Exhaust y-pipe 44265-C tube y pipe compatable
  278. Anyone have external full hydraulic steering on sonic prowler
  279. 600sci cam good for a 502 carbureted
  280. HP500 spark plugs
  281. Fast EZ-EFI 2.0
  282. Rub rail
  283. few questions with new build
  284. Exhaust tips and turndown options, and drive shower
  285. High Mileage Vehicle(s) - What oil?
  286. Making interior side panels
  287. Helical asymmetrical oil pump
  288. Latest Generation Mopar Hemi Engines...
  289. How to prevent your arm hairs from standing on end?
  290. Fuel tanks feed unevenly need a hopefully cheap fix
  291. Engine synchronization on hp 500's
  292. Blue 500s hourly maintenance ???
  293. Fiberglass repair in NJ
  294. Anyone ever had a couple parts sand casted or are in the casting business?
  295. Drive alignment question
  296. Can anybody tell me what cam this is?
  297. SBC circulation pump impeller failure.
  298. isky hydrualic lifters in a dart big m block
  299. Another header question
  300. mercruiser impeller vs quicksilver
  301. 502 Mpi procharger to 540
  302. Accessory drive pulley question
  303. mobile delvac
  304. oil cooler thermostat line routing
  305. 496ho oil
  306. Turndowns or DM tips on 29 Fever
  307. Maybe some input from you seasoned guys regarding motor
  308. silencers
  309. What goes here?
  310. Performance Distributors
  311. Late Model Bravo One Drive Swept Back Upper
  312. Help ID 5.7LX Mercruiser Engine
  313. FlexiDock - Dry Docking
  314. Agree or Disagree?
  315. need power sttering hose fitting size or adaptor help please......
  316. pixie dust.
  317. Dilemma with harmonic damper replacement!
  318. iPad navigation app?
  319. 525 Sea/Fuel Pump
  320. Head Gasket Replacement Cost
  321. Alega Growth Prevention - Anyone try/Heard of this idea??
  322. American Offshore vs Eliminator tall deck
  323. Midwest Engine Builder
  324. Mystery 502 Cam?
  325. Twin 525s, different fuel consumption, is this normal?
  326. Mercruiser Bell housing shaft and bearing???
  327. HP500 carb
  328. Looking for Offshore Battery Box
  329. 454 pistons
  330. Help! 30' Chris Craft catamaran planning and prop questions
  331. Bravo XR / Short Sportmaster - Splash Plate ???
  332. 454 mpi doesn't idle
  333. Single Plane or Dual Plane Intake
  334. New SCARAB 31 Excel
  335. Replacing lights with LEDs in a Gaffrig Tachometer
  336. Is there a better roller lifter than gm for .....?
  337. Analog Gauge Interface for new style digital trim limit switch
  338. Convert 1050 dominator from alcohol to gas?
  339. New SCARAB 31' EXCEL!!!!!!
  340. AEM or INNOVATE
  341. Procharger intercooler froze!
  342. anyone out there every get water in oil from exhaust sucking back??
  343. Rod color
  344. Stellings headers straight thru or with tips?
  345. information on the merc 260. boat year is 1986 hhelp please!!
  346. Belt drive Cam Retard?
  347. performance upgrades available for volvo penta 8.2 gsi
  348. 496 NA or SC?
  349. Best overall propeller for a Donzi 33 ZX running on twin 502 efi Mercruisers
  350. 33 outlaw throttle/shifter/indicator cables
  351. Fuel Pump Question 548 ci with 256 blower
  352. ignition coil regular maintence
  353. K planes
  354. MSD distrbutor?
  355. Holley 6-valve Mechanical Fuel Pump - parts?
  356. Spark Timing. How it works.
  357. Tryng to get in touch with -SPYDER26- Derek
  358. Upholstery (seat) needed
  359. How to mount gas tank? Best place to buy.
  360. Compression ratio with 250 B&M
  361. ITS transom on Sunsation
  362. Thunderbolt V Ignitition
  363. 454 efi hesitates and has been running warm
  364. flywheel for hp500
  365. Fuel/water separator, can I drill and tap?
  366. Mercury 500 efi 2002. Were to buy parts?
  367. wix oil filters
  368. Bravo Swivel Shaft replacement/parts questions
  369. Autometer water temp gauge help
  370. Kohler Generator 6.5CZ
  371. Smartcraft alarm...fault 94 pitot chk hi
  372. rust spots in exhaust ports of head
  373. Here's a head scratcher! Piston rings...
  374. B&M 250 carb options
  375. Kaama 400hp Carb GM 454 on 1991 Sonic 31ss
  376. High Volume Fuel/Water Separator
  377. Hydraulic Steering?
  378. 8.1 GXi Audible alarm and rough idle
  379. Ha ! Oil Know It All's Can't Know It All Cause Oil Chemists Don't Really Understand
  380. 6.1l crankshaft
  381. Carb opinions 540's 700 hp...
  382. 700SCI Fuel Pressure
  383. Raylar 511cid Stroker Kit for the 496?
  384. What Thought Crosses Your Mind ?
  385. Accessory brackets
  386. 92oct. VS. 90oct. non ethanol?
  387. 2004 288 Sunsation 280 Trim Tabs
  388. What to use to glue the cockpit sole down?
  389. 575 sci Idle Air Control
  390. o ring distrbutor
  391. Gafrig VS livorsi sending unit
  392. private sellers opinion on buyer wanting survey
  393. 22 razor
  394. Kiekhaefer Control Cables
  395. Engine Temperture ?
  396. Mercury Racing 600SCI with Whipple Stage II
  397. 454 fuel leakdown, add Holley red or new carb?
  398. 420hp 454 questions
  399. Ranting.... King Race Bearings
  400. Run Dry Impleller Thought's???
  401. Help Merc 700 Header Bolt Trouble
  402. hydraulic steering problem
  403. How do you remove top hinge pin ssm #6 ?
  404. engine swap alpha gen question
  405. ONCE Again trying to find some Imron paint
  406. What would cause 3 intake valves to leak on a diesel?
  407. Putting in a hp500 with harness
  408. 496 Mag HO water circulation problem
  409. 300 verados choking out
  410. Oil filter...
  411. Identifying a cam, help please
  412. Any suggestions !!!
  413. Power vs reliability
  414. HP increase
  415. Attaching LEDs to trim tabs
  416. Big Chief
  417. cylinder head question
  418. Header gaskets
  419. NEED SWIM PLATFORM FOR 88 Forumula 272
  420. 350 mag mpi no spark
  421. Assault heads
  422. Vacum Pumps for crankcase
  423. Windscreens
  424. Optimal Squish
  425. 34' Super Hawaii info? "Hawaii five Owe" in classifieds?
  426. Which blower to upgrade to?
  427. Intake Manifold Gaskets
  428. Camshaft sprocket question
  429. What's the difference between 088 and 2934 heads?
  430. HP500 oil thermostat oil bypass valve?
  431. HP500 carb thermostat aassymbly question
  432. What's wrong with AFR's exhaust port?
  433. Water / Meth. Injection
  434. Bore Notching
  435. What's you're opinion... stroke vs. bore
  436. Fountain Seats Covered
  437. 525 El fuel pump relay?
  438. merc high altitude pulley?
  439. Looking for information on an odd boat predator powerboats
  440. BBC Rocker Arms
  441. DiMarco engine.
  442. Identify these steering rams
  443. forged stock crank; mains .020 rods .030... worth buying or cut too deep?
  444. Ring end gaps
  445. Bypass and blow off valves
  446. Pro filer 375cc cnc heads
  447. 454 HP425 Chevy pistons - what would you recommend?
  448. Fuel Pump
  449. Custom full depth boat covers
  450. Bad Transom
  451. Hp drive couplers questions
  452. marine jobs?
  453. No Wood?
  454. Livorsi guages
  455. 525 sc fuel pump
  456. marine sealant (clear)
  457. 700's whipple #3 upgrade specs ?
  458. Fuel Pressure Boost Combo Gauges
  459. Odds and ends for a Gen IV refresh
  460. Garage door issue...
  461. Procharger intercooler corrosion
  462. Oil thermostats
  463. cheap header
  464. 454 first build. Suggestions
  465. Merctrans question
  466. Y pipe on blower motors
  467. Aftermarket heads do they fit all generation bbc
  468. B&M 250 refresh
  469. What is the right carb
  470. Aluminum Engine Hatch Hinges
  471. Engine Cradles For LS Motors and 426 Hemi
  472. flywheel, from bravo to a transmision
  473. cooling water questions
  474. 350 mag mpi, WOT rpm?
  475. To shim or not to shim valve springs
  476. Seebold swim platform?
  477. Formula 242 rpms and props and such
  478. Bearings - Coated or Not?
  479. Thunderbolt or MSD
  480. Bravo flywheel housing 8 plate oil cooler mounting
  481. Cam Identification Question
  482. hp 500 horse power
  483. Crossover and Thermostat housing for use with Procharger
  484. How much does weight matter?
  485. Anodes for trim & steering rams - Bravo XR / ITS ??
  486. Cmi 496HO header mods
  487. Anybody use the fast ez efi? Or other brand??
  488. Chrome Plating
  489. Carb Selection
  490. Leakdown test procedure info needed
  491. Best Viewing place on shore to watch Boat Races at Key west.
  492. Question for Sonic owners
  493. LS Engine Plumbing
  494. 383 vs BBC in a Baja 220
  495. engine compartment temps
  496. interested in 2014 scarab 30 tournament cc - are they any good?
  497. Merc SC800 supercharger pulley/boost ratio?
  498. Ls..... Engine tear down intervals?
  499. engine dimensions
  500. Outboard motor life and issues