View Full Version : General Q & A




  1. Cooked starter, solenoid?
  2. alternator upgrade
  3. 496HO Running Rough
  4. 38 Cigarette Racing Dash Board
  5. 700sci ?
  6. Reversion??
  7. 496 whipple problems
  8. BW Trans question
  9. Thumper Cam
  10. Vapor / Air lock Help !! ????
  11. what props for this boat??
  12. Best way to add 02 sensor?
  13. engine heating up past idle
  14. Drive shaft to tight in gimbal bearing?
  15. Think I blew a drive or U-Joint HELP!
  16. Need help fast 502 gear lube bottle connections
  17. Solid roller lifters......
  18. power steering fluid or ATF in stock Merc PS?
  19. 502 or 496 HO
  20. 415HP 454 Build Question
  21. efi to carb??
  22. restarting my whole motor project! need some advice
  23. electric fuel pumps
  24. cam spec,s 370/hp merc
  25. Engine Remote Starter Switch
  26. Timing Advance for GM Vortecs?
  27. HP500 Flame Arrestor Decals
  28. 500 EFI exhaust length required to prevent reversion?
  29. Mercruiser cool fuel question
  30. where can i find exhaust plugs from thru-hubs
  31. Best Intake for a 522BBC
  32. silent choice wiring
  33. Spark Arrestor???
  34. Stock exhaust vs stainless marine exhaust
  35. Another melted exhaust hose
  36. engine shops
  37. carrera cat prop size
  38. 502 Mag MPI HP and TQ Curve
  39. Powersteering Pump Reservoir
  40. Blower Clearance
  41. buying a new oil pump!
  42. Mercruiser 425 gaskets Help!!
  43. Gen VI Mag piston rings?
  44. Breather for oil fill tube....
  45. Removing pully from sea water pump?
  46. Got CMI's?
  47. Need Exhaust Manifolds 350 Mercruiser
  48. oil filter
  49. 525 Bouncing Tach?
  50. starter on hybrid engine combo
  51. Wideband O2 target WOT
  52. alternator/ps hitting cmi headers, what can i do???
  53. Low Oil Pressure on Rebuilt 454
  54. 4 cylinders on one bank fowling out
  55. Raylar "CoolGap" intake manifold
  56. Distributor Cap ?
  57. 454 Merc and a Rough weekend running Offshore
  58. OMC 5.0L exhaust
  59. 572 intake and carb options??
  60. Help Please. 5.7 Alpha One 1990 model Mercruser wiring problem
  61. 500 EFI powersteering pump
  62. Engine Dyno/Tune in Midwest
  63. Stainless Marine 502 MPI risers work on 500 EFIs?
  64. Problems with my #3 Speedmaster
  65. water pressure guage questions
  66. Violent sound and vibration from drive/motor and leak!
  67. Can we post pics on here?
  68. 572 stroker What to do with EFI
  69. Mufflers
  70. fuel pump pressure
  71. mercruiser 10 pin plug extension
  72. 6.2 MX knocking
  73. Valve guide wear
  74. 525efi's WON'T START
  75. Mercruiser Thunderbolt Ignition Question??
  76. Strange fluctuations with trim gauge
  77. Switch problems, please help!
  78. AMC 401 in a boat
  79. fuel pressure issues - pulling my hair out!!
  80. Engine alarm constantly on help 500efi
  81. need xome help - large leak from power steering ram
  82. 496 raw water pump?
  83. would Ls6 heads be good
  84. 5.7 Mercruiser 2005
  85. Electric fuel pump return
  86. fuel pump not getting power on '97 454 MPI
  87. Hard to shift back into nuetral under load.
  88. bravo1 trim not going down
  89. Spark Plug Changes?
  90. Freeze plugged popped!
  91. wheres the neutral safety switch on a bravo setup??
  92. holley fuel lines leaking....
  93. Outboard issue
  94. bleeding hydraulic steering system
  95. bleeding hydraulic steering system
  96. engine hatch on 24 outlaw
  97. manifolds???
  98. What are they worth?
  99. Some Oil Info from the people themselves!
  100. Upgrading to a gen VI 454 what can i use from my IV
  101. Fuel Pressure Required for 454 carbs? my pumps bad?
  102. any SEADOO 951 mechanics ????
  103. Throttles not even
  104. When to tune up
  105. Where to buy 5.7 Longblock?
  106. Soft Wall Exhaust Hose...any experience?
  107. what are drop box asd-8's worth??
  108. throttle stud for holley carb????
  109. 89 454 rebuild
  110. Sea pump HELP..
  111. 525EFI Kill Switch Wiring?
  112. Trim gauge stuck full up
  113. Best prices on smartgraft gauges and acces
  114. Kiekhaefer Controls
  115. cam recommendations for 509 bbc
  116. A Lot Of Questions!! 508 & B&M 250???
  117. Roccard Marine
  118. Engine getting hot...??
  119. intake manifold
  120. fuel pump Wipple
  121. what w.o.t rpm for 1987 mercruiser 350
  122. Anybody converted 5" tails for use on sport tubes???
  123. cobra drive gaskit question
  124. internal or external ballanceing of a HP500???
  125. 496 problem
  126. Alpha 1....keep or move up to bravo 1???
  127. Drive lowers interchangeable??
  128. Weiand Team G Intake????
  129. Excessive fuel usage?
  130. 502EFI Won't rev past 3500 RPM
  131. Max WOT on a 496HO
  132. 496 Mag Warning Horn
  133. Engine mounted off center. Pros,cons
  134. Can this happen again?
  135. cherry neutral safety switch
  136. Boat Life bunks, carpet or Felt??
  137. Which fuel pump?
  138. boat seems " not level starboard to portside"
  139. Lots of water in oil... stumped!!
  140. imco powerflow hitting power steering pump hoses....
  141. HP 500 fuel/water pump
  142. Warlock 25 SXT prop blowout
  143. Mercury Outboard Trim/Tilt
  144. Which oil thermostat?
  145. carb jetting
  146. Whippled 500 EFI Injector help!
  147. What size are nuts for Gaffrig gauge's?
  148. Carb Wizard needed...?
  149. oil temp, steaming oil...:-(
  150. Broken Valve
  151. What are these?
  152. Starting problems...
  153. 502 pistons
  154. 502 cracked block repair?
  155. Prop Washers
  156. Need Help ASAP...!!!
  157. stock 500 efi push rod lengths question
  158. Bravo Outdrive Oil Cooler
  159. New light mast / flag pole?? need a new one
  160. conditions that will trigger a CONSTANT alarm?? someone please help me???
  161. Trouble getting alpha lower in the upper unit
  162. Powermaster Ultra Torque Starters
  163. CMI Headers and drip
  164. LS V8 outboard
  165. Valve cover caps milky after 30 min on hose - condensation or something else?
  166. Amsoil Z rod
  167. Finally had time to go pick up my boat
  168. Had boat fixed, want to verify
  169. gauge bulbs
  170. BBC oil filter mounting
  171. Opinions wanted....MPI or Carbs
  172. cmi/merc
  173. over heating! HELP please!!
  174. Replacing External Steering Hose
  175. 140 or 160 thermostat
  176. Melted rubber exhaust hose replace with stainless?
  177. Anyone on merc-net now?
  178. starter fuse link
  179. 500efi oil cooler removal
  180. starter bottom mount CBB
  181. serial numbers ?
  182. What do you guys use on holes below the waterline?
  183. 3.4 merc outboard
  184. xr / xz
  185. thunder bolt modules
  186. Prop size mirages
  187. engine / coupler alignment issues..
  188. Opinions needed on rebuilt engine backfiring
  189. Mark Iv Bowtie Blocks
  190. moisture meters
  191. Refigerator Question
  192. speed of a 26' checkmate
  193. formula silent thunder exhaust tips
  194. 496 make loud tone when you trun key
  195. vinyl repair?
  196. 502efi VST Line routing/ locations?
  197. Raw water pumps
  198. Raw water pumps
  199. gas fill cap
  200. Gps Speedo
  201. Probably a simple question
  202. Computer HDD Data Retrieval
  203. remote on back of boat for radio
  204. What heads should i use on a 540cui
  205. estimated speed for baja h2x
  206. 7.4 MPI fuel system
  207. 496 ho water pressure tube ???
  208. Port gauges read low
  209. HOW much HP 604CI?
  210. 700 SCI fuel pump rebuild?
  211. imco valve covers clear T&D rockers
  212. block casting #'s
  213. 500 efi getting hot?
  214. Trying to find an oil filter adaptor
  215. machine marine steering upgrade
  216. Help! Smoke on the Water!
  217. Retractable ski pylon?
  218. 502 mag help
  219. Would you own a boat if it was cool and cloudy the majority of the summer?
  220. timing and jetting.... i need small adjustments
  221. Let's talk ignition systems
  222. 8.1 496HO cam swapping, factory cam gear-1 pink dot, crank gear-pink dot and divit?
  223. Houston we have a problem!
  224. Corrugated Marine Wet Exhaust Hose...??
  225. Garmin GPS TO GPS LIVORSI SPEEDO
  226. Aviation Gas 100/130 or Racing Fuel... Really?
  227. 548 running very rich.. Flame arrestor??
  228. oil temp sender location...
  229. Guys need some supercharger advice ! and boat information
  230. NGK R 5671A-9 plugs
  231. Coolant temp sensor
  232. Adapter for 1" hex to tapered 3/4" steering post?
  233. 454 Marine Power Question
  234. 502 MPI hard to start/won't idle
  235. gen VI cylinder head gasket
  236. Trim pump hose fittings
  237. 500 efi short block questions
  238. Ignition Help
  239. Base timing
  240. Max RPMs for OME PowerSteering and ALT
  241. 2009 700SCI low oil pressure warning
  242. water coming in WTF!!
  243. fuel psi on blown carb motor
  244. Engine temp spike
  245. fuel pump question
  246. Algae in fuel tank
  247. Bad plug wire
  248. problems planing
  249. 496 HO Power Steering Problems
  250. synthetic oil in 500EFI?
  251. No Ignition Mercruiser 350 Mpi
  252. 502 efi/mpi breaking up/ cuts out.
  253. HP500 dyno chart ?
  254. running a flexplate instead of a flywheel
  255. reflash a mefi 3
  256. Teleflex Extreme cable; long length needed
  257. Trim indicator cables -
  258. Am I over carbed??
  259. scarab 22 switch alpha to bravo any tips or thoughts
  260. Plexaglass canopy
  261. Looking for Colored Screws
  262. fuel system needs for 470-500hp setups
  263. oil
  264. Headers-use less water to make louder?
  265. Problem with starter grinding
  266. How do I find out who has the loan on a boat I purchased
  267. do a plug check?
  268. Stud Girdles
  269. Overheat issue…maybe
  270. How do i remove imco gimbal ring
  271. 496 Mag w/Whipple Stage II Stock Thermostat Safe??
  272. Power Trim Hoses
  273. Loose Steering
  274. Tulipped valves
  275. Trim tab starting height?
  276. Oil Temps
  277. So how do you think this 496 will run?
  278. Mag To Ho
  279. Has anyone tried these starters
  280. 2001 454 mpi timing
  281. Can a backfire damage a new starter?
  282. Adding anodes to K Planes.
  283. Corsa exhaust question
  284. cutting out
  285. Crankcase Pressure
  286. Add-on vs. full hydraulic steering
  287. scx/sc water pickup question
  288. Baby Steps, 1st Timer: 1990 Regal Velocity 230
  289. HP500 spark plugs
  290. Tight wrist pins
  291. How much HP will MercTrans take?
  292. Drive help and opinions PLEASE!!
  293. Prop ?
  294. Water leak
  295. Changing TBI to MPI
  296. What's my CFM
  297. RMbuilder phone number
  298. 420 Mega blower
  299. gil manifolds reversion?
  300. no trim under power
  301. boat has a leaning to the left issue and break in info???
  302. Mirage plus 25P
  303. 88 baja force 235 speed question
  304. Any help at all please!
  305. Outboard Help
  306. 700sci's starting hard
  307. 500 efi long blocks
  308. 496HO over heating
  309. Speed specs
  310. 525sc upgrades?
  311. Help!!!
  312. Plumbing question
  313. powder coating???
  314. snapped alpha one pinch bolt
  315. need hatch actuator
  316. TPS AND IAC cross reference
  317. 330hp 454 dies at idle.
  318. powerquest emblem
  319. Looking at 94 29 foot scarab just want some input
  320. Which is better?
  321. Uh oh. 106db. How to get to 86? Or at least 90?
  322. Windshield Trim
  323. 24' obsession torent
  324. Gotta vent ... literally
  325. 454/502 harmonic balancer
  326. Mechanical indicator on the drive...
  327. Fuel Pump & Oil adapter
  328. water pump/blown engines???
  329. Smaller family boat?
  330. Head studs hitting IMCO manifolds
  331. McLeod Booster Failure
  332. 500EFI Whipple idle problems
  333. Livorsi ll gauges
  334. 454 Mag MPI HP rating?
  335. MEFI 1 Tuning
  336. No spark from coil - low voltage across leads
  337. depth finder install
  338. Weird temp/gauge issue going on
  339. what intake you guys running on big blocks
  340. boat carpet
  341. 454 EFI VST Fuel Pump anybody?
  342. Keeps Throwing belt...
  343. Does 502 have rectangle-port heads ?
  344. Driving me nuts (condensation?)
  345. Ilmor questions...
  346. Wiring for tab pumps
  347. Trim control switch options??
  348. 454 chev build
  349. Scan Tool???
  350. Where is Dave_N???
  351. 500 efi erratic idle
  352. engine lacking power
  353. lighting headers good or bad?
  354. One side of 496 leaner than the other-
  355. K planes and trim cylinders.
  356. Engine oil pressure issue... opinions ?????
  357. Whats the correct timing and spark plugs
  358. 1 Drive stuck up
  359. Water in my TRS trans
  360. 525EFI Have Knock Sensor?
  361. Help ID'ing 6.2 MPI
  362. Cool lookin PFD's
  363. Weird stain on Vinyl HELP?
  364. new/rebuilt engine -new oilcooler=water oil mix
  365. 30amp to 50amp adapter marine vs rv
  366. steering problems
  367. Latham Steering
  368. Hatch actuator not working!!!! HELP!!!!!
  369. wiring diagram with sensor for 01' 496ho
  370. Engine starving for fuel?
  371. Gas Guage Doesn't work
  372. Trim Sender / Gauge All over the place
  373. Spark Plugs: What is everyone using?
  374. Need a marine surveyor in Palmdale CA
  375. Machine Shop recommendations in S.D.
  376. 525 EFI slow response??
  377. 496ho Lean burn
  378. very small water leak can i
  379. new 496 head gasket issues
  380. Unknown cam specs
  381. Tach does not look right??
  382. 454 Mag EFI Cyl Head
  383. SBC getting hot at high rpm
  384. 300x vs 300xs comparison
  385. hp500 ideling high
  386. Drive / coupler alignment issue is kicking my ass!
  387. 700sci loading Up
  388. old 502 EFI MPI Tuning Kit
  389. Tachometer calibration
  390. 496 Mag Black Soot on Transom Lots of it
  391. Help Diagnose 525 EFI Stutter
  392. Stagger stringer setup?
  393. new 502 engine.
  394. Orange Fluid on Blower Manifold
  395. Blue Hp 500 vaccum line question
  396. Temp sender???
  397. Garboard drain repair
  398. Cyclone Replacements
  399. Trying to standardize fluids between multiple boats (Volvo & Merc)
  400. thunder bolt IV timing questions
  401. 502 not pumping water out exhaust even with ears on drive
  402. Air fuel ratio...wet exhaust???
  403. Swapping steering
  404. Loss of Power at WOT
  405. 540 build help
  406. RPM differential
  407. What pitch should I use?
  408. Muffler adapter
  409. 1998 454 magnum flywheel problem????
  410. Raylar Kit Install for 496 HO
  411. 211 libb speed
  412. Is there an easy way to check Octane Level
  413. fuel ?
  414. fuel ?
  415. Mercury 525 EFI Water Pressure?
  416. 496ho alarm (i have scanner)
  417. Hot Engine Oil
  418. I think I finally pulled the trigger!!!!
  419. bad performance Wellcraft 233
  420. Throttle cables
  421. Knocking noise possibly in driveline.
  422. #1 cylinder problems
  423. Where to draw power for electric choke and fuel pump?
  424. Do you have to have the PCV in the intake HP500?
  425. Any Corsa 4 wire Solenoids for sale ??
  426. new holley carb plumbing
  427. Help Sync'ing Engines/Throttles at Cruise
  428. 557 vs big cubic inches
  429. MAP Pressure??
  430. 454 mpi idle vacuum
  431. Mercruiser 500 Hp Bulldog
  432. waste holding tank
  433. Muffler Question
  434. Hp 500 Fuel Injector wiring
  435. 7.4 mpi with 454 mag cam question
  436. Center console advice concept, glasstream, etc
  437. Crossover bypass routing?
  438. overheating then hydro-locking engine
  439. 496 HO Plug Choice - Confirm please
  440. Engine temp question
  441. 525 hesitation?
  442. Trailer Brake Issue
  443. best high speed bimini ?
  444. changing throttle cable throw 31 sonic
  445. Anyone using Cheap Ebay HEI distrubutors
  446. water temp all over the place
  447. Switching to a electric fuel pump..got question..
  448. Heat exchangers
  449. Scat 9000 Steel Cast Crank
  450. power steering help...
  451. fuel gauge
  452. Tachs Erractic
  453. K-Plane help
  454. Just installed a 496HO in an Formula 242LS, and the tach does not work?
  455. Amp
  456. New 540 with crossover hotter on starbord side
  457. 700hp scarab
  458. motor will only rev to 2300 RPM under load
  459. Dana Marine 4" s/s exhaust tips
  460. 496 mag ho rpm
  461. power loss--Hard starting after sitting for a hour
  462. 1987 formula 242ss speed problem.
  463. 525 Issues?
  464. Trim Tab Problems
  465. ? reprogramming old MEFI 1 and 2 ??
  466. Riser to ex tip mismatch - how far can hose flex?
  467. 496 raw water pump problems
  468. 454 loss of RPM
  469. water temp / oil temp??
  470. XRP fittings source
  471. coupler questions.
  472. Ignition Issues
  473. Need Help, old 502 EFI only 4950 RPM, rev Limit ?
  474. Powerboat shows on TV
  475. HELP. Backwashing 496 after impeller replacement.
  476. Jetting advice needed for 489 with Holley 800
  477. Need help with my gas hog(boat)
  478. CRT cordless rotary trim.
  479. 2000 Fountain twin 502's which prop goes where...stupid??
  480. New Tach Going Crazy
  481. oil pressure sender
  482. super charger
  483. Oil pressure problem need some advice
  484. motor stumbles and stalls out
  485. Hatch actuator
  486. Lightning Headers Vs Gil Dry Exhaust
  487. Question about a dipstick
  488. Brovo 1 - Reverse Problems
  489. MEFI-1 or MEFI-2 Cost?
  490. Carb HP500 Oil Overheating?
  491. How do I drive/fly my new Tunnel? 22' DCB (Daytona) with a 500 HP i/o
  492. Bravo 3 - no forward gear, gets stuck in reverse.
  493. Converting from MercTrans to BW c72
  494. Tighten to yield bolts - Re-use
  495. Everything completely dead... HELP!!!!
  496. Loose Flywheel Bolts???
  497. thermostat hole
  498. Oil cooler repair?
  499. Help, trying to convert from crossovers to thermostats
  500. NJ engine builders