View Full Version : General Q & A




  1. block casting #'s
  2. 500 efi getting hot?
  3. Trying to find an oil filter adaptor
  4. machine marine steering upgrade
  5. Help! Smoke on the Water!
  6. Retractable ski pylon?
  7. 502 mag help
  8. Would you own a boat if it was cool and cloudy the majority of the summer?
  9. timing and jetting.... i need small adjustments
  10. Let's talk ignition systems
  11. 8.1 496HO cam swapping, factory cam gear-1 pink dot, crank gear-pink dot and divit?
  12. Houston we have a problem!
  13. Corrugated Marine Wet Exhaust Hose...??
  14. Garmin GPS TO GPS LIVORSI SPEEDO
  15. Aviation Gas 100/130 or Racing Fuel... Really?
  16. 548 running very rich.. Flame arrestor??
  17. oil temp sender location...
  18. Guys need some supercharger advice ! and boat information
  19. NGK R 5671A-9 plugs
  20. Coolant temp sensor
  21. Adapter for 1" hex to tapered 3/4" steering post?
  22. 454 Marine Power Question
  23. 502 MPI hard to start/won't idle
  24. gen VI cylinder head gasket
  25. Trim pump hose fittings
  26. 500 efi short block questions
  27. Ignition Help
  28. Base timing
  29. Max RPMs for OME PowerSteering and ALT
  30. 2009 700SCI low oil pressure warning
  31. water coming in WTF!!
  32. fuel psi on blown carb motor
  33. Engine temp spike
  34. fuel pump question
  35. Algae in fuel tank
  36. Bad plug wire
  37. problems planing
  38. 496 HO Power Steering Problems
  39. synthetic oil in 500EFI?
  40. No Ignition Mercruiser 350 Mpi
  41. 502 efi/mpi breaking up/ cuts out.
  42. HP500 dyno chart ?
  43. running a flexplate instead of a flywheel
  44. reflash a mefi 3
  45. Teleflex Extreme cable; long length needed
  46. Trim indicator cables -
  47. Am I over carbed??
  48. scarab 22 switch alpha to bravo any tips or thoughts
  49. Plexaglass canopy
  50. Looking for Colored Screws
  51. fuel system needs for 470-500hp setups
  52. oil
  53. Headers-use less water to make louder?
  54. Problem with starter grinding
  55. How do I find out who has the loan on a boat I purchased
  56. do a plug check?
  57. Stud Girdles
  58. Overheat issue…maybe
  59. How do i remove imco gimbal ring
  60. 496 Mag w/Whipple Stage II Stock Thermostat Safe??
  61. Power Trim Hoses
  62. Loose Steering
  63. Tulipped valves
  64. Trim tab starting height?
  65. Oil Temps
  66. So how do you think this 496 will run?
  67. Mag To Ho
  68. Has anyone tried these starters
  69. 2001 454 mpi timing
  70. Can a backfire damage a new starter?
  71. Adding anodes to K Planes.
  72. Corsa exhaust question
  73. cutting out
  74. Crankcase Pressure
  75. Add-on vs. full hydraulic steering
  76. scx/sc water pickup question
  77. Baby Steps, 1st Timer: 1990 Regal Velocity 230
  78. HP500 spark plugs
  79. Tight wrist pins
  80. How much HP will MercTrans take?
  81. Drive help and opinions PLEASE!!
  82. Prop ?
  83. Water leak
  84. Changing TBI to MPI
  85. What's my CFM
  86. RMbuilder phone number
  87. 420 Mega blower
  88. gil manifolds reversion?
  89. no trim under power
  90. boat has a leaning to the left issue and break in info???
  91. Mirage plus 25P
  92. 88 baja force 235 speed question
  93. Any help at all please!
  94. Outboard Help
  95. 700sci's starting hard
  96. 500 efi long blocks
  97. 496HO over heating
  98. Speed specs
  99. 525sc upgrades?
  100. Help!!!
  101. Plumbing question
  102. powder coating???
  103. snapped alpha one pinch bolt
  104. need hatch actuator
  105. TPS AND IAC cross reference
  106. 330hp 454 dies at idle.
  107. powerquest emblem
  108. Looking at 94 29 foot scarab just want some input
  109. Which is better?
  110. Uh oh. 106db. How to get to 86? Or at least 90?
  111. Windshield Trim
  112. 24' obsession torent
  113. Gotta vent ... literally
  114. 454/502 harmonic balancer
  115. Mechanical indicator on the drive...
  116. Fuel Pump & Oil adapter
  117. water pump/blown engines???
  118. Smaller family boat?
  119. Head studs hitting IMCO manifolds
  120. McLeod Booster Failure
  121. 500EFI Whipple idle problems
  122. Livorsi ll gauges
  123. 454 Mag MPI HP rating?
  124. MEFI 1 Tuning
  125. No spark from coil - low voltage across leads
  126. depth finder install
  127. Weird temp/gauge issue going on
  128. what intake you guys running on big blocks
  129. boat carpet
  130. 454 EFI VST Fuel Pump anybody?
  131. Keeps Throwing belt...
  132. Does 502 have rectangle-port heads ?
  133. Driving me nuts (condensation?)
  134. Ilmor questions...
  135. Wiring for tab pumps
  136. Trim control switch options??
  137. 454 chev build
  138. Scan Tool???
  139. Where is Dave_N???
  140. 500 efi erratic idle
  141. engine lacking power
  142. lighting headers good or bad?
  143. One side of 496 leaner than the other-
  144. K planes and trim cylinders.
  145. Engine oil pressure issue... opinions ?????
  146. Whats the correct timing and spark plugs
  147. 1 Drive stuck up
  148. Water in my TRS trans
  149. 525EFI Have Knock Sensor?
  150. Help ID'ing 6.2 MPI
  151. Cool lookin PFD's
  152. Weird stain on Vinyl HELP?
  153. new/rebuilt engine -new oilcooler=water oil mix
  154. 30amp to 50amp adapter marine vs rv
  155. steering problems
  156. Latham Steering
  157. Hatch actuator not working!!!! HELP!!!!!
  158. wiring diagram with sensor for 01' 496ho
  159. Engine starving for fuel?
  160. Gas Guage Doesn't work
  161. Trim Sender / Gauge All over the place
  162. Spark Plugs: What is everyone using?
  163. Need a marine surveyor in Palmdale CA
  164. Machine Shop recommendations in S.D.
  165. 525 EFI slow response??
  166. 496ho Lean burn
  167. very small water leak can i
  168. new 496 head gasket issues
  169. Unknown cam specs
  170. Tach does not look right??
  171. 454 Mag EFI Cyl Head
  172. SBC getting hot at high rpm
  173. 300x vs 300xs comparison
  174. hp500 ideling high
  175. Drive / coupler alignment issue is kicking my ass!
  176. 700sci loading Up
  177. old 502 EFI MPI Tuning Kit
  178. Tachometer calibration
  179. 496 Mag Black Soot on Transom Lots of it
  180. Help Diagnose 525 EFI Stutter
  181. Stagger stringer setup?
  182. new 502 engine.
  183. Orange Fluid on Blower Manifold
  184. Blue Hp 500 vaccum line question
  185. Temp sender???
  186. Garboard drain repair
  187. Cyclone Replacements
  188. Trying to standardize fluids between multiple boats (Volvo & Merc)
  189. thunder bolt IV timing questions
  190. 502 not pumping water out exhaust even with ears on drive
  191. Air fuel ratio...wet exhaust???
  192. Swapping steering
  193. Loss of Power at WOT
  194. 540 build help
  195. RPM differential
  196. What pitch should I use?
  197. Muffler adapter
  198. 1998 454 magnum flywheel problem????
  199. Raylar Kit Install for 496 HO
  200. 211 libb speed
  201. Is there an easy way to check Octane Level
  202. fuel ?
  203. fuel ?
  204. Mercury 525 EFI Water Pressure?
  205. 496ho alarm (i have scanner)
  206. Hot Engine Oil
  207. I think I finally pulled the trigger!!!!
  208. bad performance Wellcraft 233
  209. Throttle cables
  210. Knocking noise possibly in driveline.
  211. #1 cylinder problems
  212. Where to draw power for electric choke and fuel pump?
  213. Do you have to have the PCV in the intake HP500?
  214. Any Corsa 4 wire Solenoids for sale ??
  215. new holley carb plumbing
  216. Help Sync'ing Engines/Throttles at Cruise
  217. 557 vs big cubic inches
  218. MAP Pressure??
  219. 454 mpi idle vacuum
  220. Mercruiser 500 Hp Bulldog
  221. waste holding tank
  222. Muffler Question
  223. Hp 500 Fuel Injector wiring
  224. 7.4 mpi with 454 mag cam question
  225. Center console advice concept, glasstream, etc
  226. Crossover bypass routing?
  227. overheating then hydro-locking engine
  228. 496 HO Plug Choice - Confirm please
  229. Engine temp question
  230. 525 hesitation?
  231. Trailer Brake Issue
  232. best high speed bimini ?
  233. changing throttle cable throw 31 sonic
  234. Anyone using Cheap Ebay HEI distrubutors
  235. water temp all over the place
  236. Switching to a electric fuel pump..got question..
  237. Heat exchangers
  238. Scat 9000 Steel Cast Crank
  239. power steering help...
  240. fuel gauge
  241. Tachs Erractic
  242. K-Plane help
  243. Just installed a 496HO in an Formula 242LS, and the tach does not work?
  244. Amp
  245. New 540 with crossover hotter on starbord side
  246. 700hp scarab
  247. motor will only rev to 2300 RPM under load
  248. Dana Marine 4" s/s exhaust tips
  249. 496 mag ho rpm
  250. power loss--Hard starting after sitting for a hour
  251. 1987 formula 242ss speed problem.
  252. 525 Issues?
  253. Trim Tab Problems
  254. ? reprogramming old MEFI 1 and 2 ??
  255. Riser to ex tip mismatch - how far can hose flex?
  256. 496 raw water pump problems
  257. 454 loss of RPM
  258. water temp / oil temp??
  259. XRP fittings source
  260. coupler questions.
  261. Ignition Issues
  262. Need Help, old 502 EFI only 4950 RPM, rev Limit ?
  263. Powerboat shows on TV
  264. HELP. Backwashing 496 after impeller replacement.
  265. Jetting advice needed for 489 with Holley 800
  266. Need help with my gas hog(boat)
  267. CRT cordless rotary trim.
  268. 2000 Fountain twin 502's which prop goes where...stupid??
  269. New Tach Going Crazy
  270. oil pressure sender
  271. super charger
  272. Oil pressure problem need some advice
  273. motor stumbles and stalls out
  274. Hatch actuator
  275. Lightning Headers Vs Gil Dry Exhaust
  276. Question about a dipstick
  277. Brovo 1 - Reverse Problems
  278. MEFI-1 or MEFI-2 Cost?
  279. Carb HP500 Oil Overheating?
  280. How do I drive/fly my new Tunnel? 22' DCB (Daytona) with a 500 HP i/o
  281. Bravo 3 - no forward gear, gets stuck in reverse.
  282. Converting from MercTrans to BW c72
  283. Tighten to yield bolts - Re-use
  284. Everything completely dead... HELP!!!!
  285. Loose Flywheel Bolts???
  286. thermostat hole
  287. Oil cooler repair?
  288. Help, trying to convert from crossovers to thermostats
  289. NJ engine builders
  290. Gen VI 454 mag base timing.
  291. removing painted stripes/logo's safely
  292. stainless marine and takin a big gulp of water
  293. Cover, Sunbrella or Hot Shot or ??
  294. fuel level?
  295. engine alignment with offshore mounts
  296. Flywheel Issues
  297. Having trouble with circ pump hose with RPM AirGap
  298. Prop,s
  299. CMI Header Temp.
  300. Keith Eikert Oil Pans & a starter that fits it? anyone have Experience?
  301. amp question
  302. new outdrive?
  303. DUI Ignition
  304. Intercooler plumbing question
  305. Trouble with electric hatch actuators
  306. 496 just makes a click?
  307. One side running hot
  308. outboard guys steering question
  309. New Altenator
  310. Star Marine Depot
  311. Proper place to show my boat
  312. TQ on a mercruiser 425 hp?
  313. Subwoofer question
  314. Anyone have the ability to convert oil filter part numbers?
  315. Prop Puller - Stuck Volvo DP front prop
  316. buying a winterized boat
  317. bellows install question
  318. 288 Sunsation.
  319. Viking Boat Lifts
  320. Innovate LM-2 integration questions....
  321. Engine hard to start when cold
  322. question about sea pump?
  323. 350 Mag MPI High Oil Pressure
  324. SS Raw Water Pump
  325. Gil manifold riser gasket
  326. Jetting for Supercharged 502
  327. oil dipstick with aftermarket exhaust
  328. 525 Slow to respond?
  329. 500 efi motor noise
  330. Weird electrical problem
  331. marine a/c what refrigerant type
  332. Help!! Engine Demon's!
  333. water psi bypass
  334. stewart warner gauges
  335. Converting from points to thunderbolt
  336. TRS bell housing oil cooler??
  337. Ignition Module Problem
  338. wtb conversion stuff for mpi to carb
  339. Thunder bolt IV timing question
  340. Battery question
  341. 525efi timing problem
  342. Idle water pressure hp500's
  343. fuel pump cam question
  344. What a difference the right prop makes!
  345. Engines dies when shifting, need help here
  346. best cheap stereo
  347. Bowtie Vortec Heads
  348. quick fuel 830 carb???
  349. Water dumps
  350. Advice please. 496 water intake blockage.
  351. Trim adjustment.
  352. Trim gauge not working
  353. windshield part
  354. fuel pump cam question
  355. What heads for my small block
  356. Instrument lighting
  357. 496 mag sea water pump
  358. GPS units anyone running a GPSMAP 640
  359. Oil Change Pump
  360. Problem with my TRS drives
  361. Lightning headers vs Gil manifolds / risers - pros & cons?
  362. Is 212* rating for Fragola Push-Lok hose sufficient for oil cooler line?
  363. Livorsi leaking
  364. Maybe a dumb question but hey?
  365. I need some replacement coupler info!
  366. 496 mag non ho rev limiter
  367. oil temp sender
  368. carb set up help needed
  369. 500efi serial number location help
  370. BEST fuild to run in BORG W
  371. need new motor...compatibility vortec question
  372. Rev limiter?
  373. water pick up
  374. What are the right head bolts for my set up?
  375. polishing lower unit
  376. mpi to carb conversion
  377. epoxy, gel, fiberglass removel from old tabs?
  378. Differences between a 350 mag MPI motor and a GM 350 HO Ram Jet engine
  379. Boat Bottom Hook
  380. BBC Gen 6 manifold gaskets ?
  381. Trim rings.......
  382. boat covers
  383. Lowrance HDS 7
  384. fuel pump problem
  385. AN fitting and routing help...
  386. portable a/c
  387. Need some Help on Sluggish boat Please!!
  388. 6.2 / 377 merc
  389. Battery Help
  390. Moisture
  391. Tuning software??
  392. Gen IV 454 Cam Retainer Plate?
  393. Water Pickups
  394. 525 water temp
  395. 496 oil filter
  396. CMI rope seals dripping water????
  397. Getting really frustrated!
  398. 89 292 Deck Graphics Opinion.
  399. GPS/ chartplotter NEED HELP!
  400. Testing an ECT sensor
  401. Water in Engine oil Please help
  402. Motors are back in!
  403. Livorsi DATA TACH
  404. Four stroke outboard question
  405. Whipple Intercooler water PSI
  406. Oil Change-- Dumb Question???
  407. Clarion CMV1 - Anyone have one?
  408. Weind 177 - Merc 525... 80 W 90 ?
  409. thunder v ignition
  410. Any Mac tool dealers on here?
  411. cold water cold air cold motor
  412. fuel additive
  413. Need a little more POWER!! Help!
  414. 502 re-power options
  415. Compression test results and Gen V 454 Mag / HP425 Differences
  416. suggestions on pwer ugrade wanted
  417. Twin Drive alignment
  418. Gold Digger
  419. valvetrain geometry check - do I need shorter pushrods?
  420. Donzi 38ZX Electrical Questions.....
  421. 2 BOATS, same price, different years, 525sc or 500efi need input
  422. gfs 10
  423. 330 Hp to 400 HP
  424. How to check fluid levels??
  425. New Boat trying to guess HP
  426. Help With Engine Id.
  427. Westerbeke Genset
  428. 350 Mag cutting out at WOT
  429. oil lines
  430. 525 oil change frequency
  431. Amsoil 5-30?
  432. Who makes the best labbed prop???
  433. emi vs stainlessmarine exhaust
  434. thermostat housing change
  435. K-plane pump switch wiring
  436. Whipple vs. Procharger
  437. Buying boat, need to confirm engine hours on "fresh" engine
  438. Stereo
  439. vortec head valve covers
  440. Thanks OSO
  441. Gauge Issues
  442. Which heads are better
  443. Back flow valve for innercooler
  444. 330 hp Stock Exhaust Manifold Swap
  445. merc engine wiring diagram
  446. Lake's near Dayton Ohio for test ride??
  447. Alternator Size?
  448. 454 build horsepower?
  449. fuel pump vacuum
  450. Opinion needed.
  451. Motor Rebuild ?
  452. Is this what I need
  453. 400' X 60 ' pole barn ?s
  454. Port side outdirve & K Plane pump, No Power!
  455. Removing scratches from my windshield
  456. hub kit
  457. Reassembly: 454 Mag Mpi
  458. Carb Spacers
  459. 500hp efi fuel psi
  460. Steering Centerline/ Crank Centerline
  461. Scorpion rocker clatter
  462. Alignment tool fo Imco box
  463. Mounting a Thru hull transducer 88 Baja
  464. Steering wheels
  465. Easy way to identifiy a 351 vs 302?
  466. imco lower
  467. Moisture In Oil
  468. Another one for ya
  469. Opening engine compartment w/ no battery!
  470. steering hub adapter??? Help
  471. got ripped off on some parts and machine work, need advice..
  472. Holley Carb choice ?
  473. gear lube reservoir alarm not working
  474. OSO timing out quickly
  475. 1.8 roller rockers
  476. Non skid
  477. My Header dilema continues
  478. Alpha rear engine mount bolts
  479. transom mounted water pick-ups
  480. Closed Cooling Heating Question
  481. Big Block Oiling Question / by-pass valves
  482. 489 with only 14 hrs compression #s
  483. McLeod Design?
  484. Mechanical speedo
  485. Looking for Bravo One X Decals
  486. Subwoofer box Dynamat lining
  487. Bolt removal - bellhousing to transom
  488. Propane Powered
  489. Someone Please explain this to me...
  490. need help 90 31' scarab excel stringer bad
  491. Any stereo/audio wizards out there...?
  492. boosted tuneups
  493. Muffler removal help, and NEWBIE to site
  494. 2 Warning Beeps on 496ho???
  495. Lenco's vs. K-Planes
  496. Race Pump fuel pumps
  497. Sea Strainers , Brass, Bronze or SS ????
  498. Fuel Flow Meter - HELP
  499. 292 Formula Fastech 400 + HP
  500. paging Fogducker..