View Full Version : General Q & A




  1. Extension box or not?
  2. 312 Fastech
  3. Aero Tek With Cavitation/blowout Problem
  4. 525 SC's oil change
  5. cooling problem
  6. New to boating... questions (90' Sunsation Rocket)
  7. Looking at 87 Scarab Panther
  8. new pole
  9. belts
  10. LSX Motor In A Boat
  11. Higher Octane Gas?
  12. 500 efi upgrades
  13. Max bore for a "production" 502 block
  14. Idle control - Big cams and carbs
  15. Camshaft recommendations
  16. ECM3 to a 4
  17. Knock sensor ?..HP500 carbed
  18. 502 ci / 454 block ???
  19. 525 SC upgrade
  20. GMPP Ram Jet 502 vs Merc HP500/525 EFI
  21. MPI and morepower
  22. 27' Magnum
  23. State of Shock
  24. HP500 carb metering blocks
  25. Old Style Engine Syncronizer Light
  26. posting my avatar
  27. 496 ho/headers to lean?
  28. Turning props in?
  29. I'm Starting To Think I Should Take Up Basket Weaving
  30. I might be onto something
  31. Tach
  32. Engine cuts out when I hit a wave ???
  33. engine from Bravo to Alpha
  34. 502 Mag MPI, Max tq/hp?
  35. Arneson drives
  36. msd or carb
  37. Who has used non marine msd
  38. WTB- HP500 intake and carb
  39. Carb tuning help
  40. ignition help
  41. Ignition advance curve on 454
  42. Old parts
  43. Pics from Kemah this afternoon
  44. Sea Strainer w/ relief valve?
  45. Bravo One Problem
  46. Replacing Hydrolic Lifters
  47. spun prop
  48. Slow Yamaha 250
  49. Swap Cam with out pulling engine
  50. offset sterndrive
  51. 2 Stage Water Pump
  52. TRS alignment tool
  53. Nose cone, good or bad idea.
  54. how many pumps of grease in a bravo transom ass.?
  55. Oil temp too cold now oil pressure too low
  56. 300 X beeps 4 X's
  57. water wich wiring
  58. What is the CPS.. ??
  59. Walmart Drops Price On Mobil 1
  60. merc 377 scorppins
  61. vapor lock
  62. PCM, wiring ??? (Engine shuts down) ???
  63. good marine upholstry shop in Md. ????
  64. Any USED Plug-in #6 Transom assembly's for sale ??
  65. Deal On MR43T Plugs
  66. Anyone have feed back on Hardin Marine Cyclone Shorty Manifold?
  67. Red Zone Lifters
  68. fresh out of ideas
  69. ECM repaire
  70. Flame arrester
  71. 87 or 89 octaine
  72. Performance of a 260SX Powerquest
  73. emgine surgeing
  74. Emergency 93 Octane gas??
  75. Low Oil Pressure Alarm
  76. Proposing 22 Donzi Any suggestions?
  77. LED's under swim platform
  78. Need pro engine builder help
  79. 525 electric fuel pump help
  80. how many run synthetic oil in there 525's ?
  81. Need advice on this Crane 502 Cam
  82. oil line routing question
  83. Powerquest 320 LSC
  84. New problem
  85. Another fuel pressure problem
  86. 454 efi low oil pressure?
  87. opinions on this boat?
  88. Thanks Tyler Crockett & BBlades
  89. Straight 50w...anybody.
  90. what is trs with berg warrners?,
  91. 496Ho exhaust manifolds/risers F/S
  92. Thunderbolt IV Sensor Wiring
  93. Pulling my hair out, engine misses at 4K...
  94. How Many Feet?
  95. Holley jetting questions
  96. Trim issues
  97. fram hp6A oil filter
  98. ProCharger AW504 intercooler
  99. Chasing water in my oil...
  100. I need scan tool for 496 HO
  101. 502mpi upgrades
  102. Mallory Ignition Boxes
  103. Comp Cams Belt Drive
  104. Anyone have this problem before.......
  105. Carbed 500hp lifter Failure
  106. Dirt in fuel injector?what?
  107. Engine Help w/pics "Valvetrain"
  108. 496 vs 502 upgradeability
  109. Cam break in procedure
  110. What would cause this MELTDOWN in an ALPHA drive??
  111. When to freshen a blower motor
  112. 496 mag problem????
  113. Questions on Motor Oil selection blower motor
  114. Quadrajet Flooding
  115. Holley or Demon carb?
  116. Changing Fuel Filter no gas available to fill
  117. Hp, torque, fuel efficiency, and cruise speed....
  118. Prop Interchangeability
  119. 700SCI Questions
  120. 502 mag mpi serpentine belt layout
  121. 502 intake gasket question - urgent help please!
  122. Gen 6 push rod length
  123. 350 MPI kill switch
  124. circulating pump leaing spitting water
  125. Hull # filled in after repaint of transom. ...
  126. one cylinder no compression?
  127. 496 HO performance/HP upgrade.
  128. Gimble ring
  129. Fuel sender
  130. Check Valve in Fuel tank
  131. Looking for a deal on boat shipping
  132. Supercharged 496 thermostat
  133. WHat would be the effect if the motors were making different horsepower and torque?
  134. kiekhaefer zero effort control diagram
  135. Weird drive issue - I'm stumped!!!
  136. T-stat housing with bypass.
  137. Used Boat ????????????
  138. Borg Warner velvet transmission 72C 1.1 ratio
  139. Used Boat Hours?????????????????????
  140. Leaking water at switchable exhaust - am I the only one?
  141. help 496 ho
  142. OMC King Cobra problem
  143. How does Oil Weight Affect Temperature?
  144. test
  145. Need GGB muffler flappers
  146. Tire dealers???
  147. help again please
  148. Water Pickup>>>>>transom Mount Or Thru Hull...
  149. Depth Finder
  150. Bravo funky growling noise / vibration very minute
  151. help missing
  152. need stereo amp advice for subs
  153. Seeking Used External Hydraulic Steering or External Damper for Alpha
  154. Overheating issue - Flow restriction due to sand?
  155. fuel seperators
  156. High Humidity
  157. Where can I get gear shift link for 300 promax?
  158. Can I use an HEI
  159. Hard starting
  160. Converting windshield to deflector (IMP Eleganza)
  161. Pita
  162. 575SCi fuel return/fuel cooler question
  163. 575's And Flooding..........???
  164. build motor -- or procharge?
  165. Changing Bravo Drive
  166. 1999 502 mag starting and reving issues!!!!
  167. Water in bildge
  168. Any one Know Specs on a Mercury hp 500 Cam
  169. Remove stainless shims with tie-bar?
  170. Stock BBC Oil Oil Pump Cavitation
  171. finally on the water
  172. 502 mpi fuel pump oil change....
  173. TRS Drvie , play in Gimble
  174. Emi 496ho Exhaust Junk
  175. Brass impeller pump - 496ho
  176. Is this a fuel pressure problem?
  177. Running rich
  178. Morse 33C Cable Ends
  179. fuel pressure 500 hp carb
  180. Oil Pressure Question
  181. OMC King Cobra "popping"out of gear
  182. I need 1 set of Stainless Marine Exhaust for a Gen VI 502. Who's got the best price?
  183. 496 Fuel Pressure
  184. Mercruiser MX 6.2 MPI troubles?
  185. Run Time At W.o.t.
  186. How cool should engine run?
  187. gps speedo sending unit mounting
  188. what is this in the reservoir? Milkshake?
  189. Dyno results
  190. Water Impeller questions
  191. PICS...Adding Oil Temp Gauge...A Few Questions
  192. DUAL DOMINATORS ON BLOWER MOTOR-idle too high
  193. Oil Change Question
  194. zz502 rebuild rpm
  195. Steering play on bravo
  196. X Dim
  197. 502 Gen VI Valve Spring Pressure
  198. Motor Guys - Oil Pressure Drop Under High RPM
  199. low fuel pressure on 525 sc's
  200. draft depth
  201. Baltimore Maryland Need a RH 30 Bravo I
  202. 525 Whipple
  203. 2 different #4 drives, and #4 experts ?
  204. World records
  205. Exhaust Mainfold Torque Number?
  206. Prop Help
  207. Motor hours, 700 -1100 too much ????
  208. Lighting Headers
  209. CMI header ?
  210. Challenger Power boats?
  211. Jabsco Brass Sea Pump
  212. Coil circuit or injector circuit on a Mefi-3
  213. Please Help New Boat Owner- Closed Cooling???
  214. Tab replacement?
  215. Filling K-Plane Reservoir
  216. Holley powervalve answers
  217. Valve Adjustment
  218. Rebuilt motor - not hitting high RPM's ..... please help!
  219. Snake Oil For Batteries???
  220. Anyone have a PN exhaust gasket
  221. hard pull to the left
  222. ISO 1991/1992 Merc racing 465 HP 502
  223. 525efi
  224. MSD plug gap
  225. Stringer Repair - 38' Fountain SC
  226. another "thinking about pro-charging" thread
  227. s b c oil pan
  228. Quicksilver Throttles
  229. Need oxygen sensor GURU help interpreting oxygen sensor data
  230. Bravo 1 Pulls Right Coming Off Plane...
  231. Hesitation problem under load 454 Magnum, I need some idea's
  232. Campion Chase
  233. Volvo DPX Outdrive
  234. Motor Guru's..Need help with 496 low oil pressure!!
  235. water pressure
  236. What Are These Things Called?
  237. help- pulleys needed!
  238. How does this setup keep from ingesting water?
  239. 502 fuel injectors
  240. speedometer
  241. erratic oil temp.
  242. Depth finder help please
  243. Which Supercharger is better?
  244. Anybody running wet exhaust on a carbed HP500?
  245. 575 questions
  246. Slippage?? - Help!!!
  247. Oil pressure for 496ho
  248. Wanted - Merc Oil Pan Pickup
  249. Question on Stepped Hulls?
  250. Ignition timing on HP 500 -97 and later?
  251. what is best rpm for top end on 525SC
  252. where to get parts for mechanical trim indicator drive end components
  253. 95 454 Questions
  254. 454 magnum EFI/MP 385 ECU-remapping?
  255. head epecs
  256. New motors Hot on Test stand ...
  257. How can you tell enough oil is getting up top
  258. no power
  259. What causes a serpintine belt to split?
  260. Where did the thread on the Gen V Blue Motor water pump/fuel pump issues go?
  261. Rollback Hour Meter?
  262. 5.7LEfi overheating
  263. trim pump hose through hulls
  264. Places in Md that does boat wraps(grapics)
  265. SCORPIAN 377 POWER?? Boost??
  266. 525EFI Electric Fuel Pump Upgrade?
  267. trailer lug nuts
  268. Online High Performance sites
  269. Need 2.5 Merc power heads
  270. Need picture of mercruiser engine
  271. I Need a #4 SSM
  272. Drive questions
  273. Hey guys looking for
  274. Boat leaking
  275. Stewart warner warning system in a cigg bullet
  276. Electric or Mechanical fuel pressure gauge ?
  277. New engine tach not working......
  278. 502 oil pressure
  279. Lectrotab Actuators?
  280. Oil cooler scorpion engines ?
  281. Polyurethane to Seal Exhasut Cutout in Transom?
  282. Cooling System hose routing. Is this bad ?
  283. Oil Pressure???
  284. Detective needed Overheating one side only?
  285. Mercury seawater/fuel pump
  286. Connecting 2 PC's together
  287. batterey wiring diagrams
  288. Video Cam Brand?
  289. b&m 420 megablower
  290. What thread sealant on oil connections ?
  291. Silent Choice won't open up
  292. Loss of RPM and TOP Speed
  293. TV's for boats, 12V or 110?
  294. Early 502 EFI question.
  295. Fuel pump Voltage boosters on a Procharger
  296. Merc Neutral safety switch part #
  297. Verify My Oil Plumbing Please - w/pics!
  298. Wankel or not to Wankel?
  299. AC problem
  300. Fuel Coolers ??? Is this a Bad idea or not?
  301. center console
  302. Looking to buy a maintenance manual......
  303. Faria tach/hour meter.
  304. replacing my oil bypass valve-going to a 30#
  305. Merc and their plastic inserts......
  306. Looking for an ECM 454 mag mpi
  307. installing side exit exhaust
  308. Need help with cam choice
  309. dual ram hydraulic steering
  310. trailer ?
  311. how often or how many hours
  312. In need of an ECM 454 mag mpi
  313. Bravo to alpha shift problem?
  314. 454 teague supercharged..
  315. Mercruiser 383 swap
  316. HP 500 Blown UP?
  317. Help with motor selection!
  318. Bravo 1 - Old vs. New???
  319. HP 500 EFI intake setup on a stock 502 ?
  320. Replacing the cuppler this weekend- can you help?
  321. Tuning experts
  322. Any Mercury Verado techs out there??
  323. 496 Mag Electronic Control Module
  324. Oil temp higher when idling vs. running?
  325. overheating small block
  326. Tune up time for 2000 502 (stock MPI)
  327. Volt/AMP Guage??
  328. Sirus Radio reception is crappy!
  329. Interior Cleaner
  330. question on a 486ho problem
  331. Big race in st.clair
  332. Just rebuilt motor... runs hot, what now?
  333. freeze out plug locations
  334. GM Scan Tool
  335. mobil one
  336. RPMs
  337. Merc 300 Verado vs 300 Optimax vs 2.5 OS
  338. where to buy isky red zones or crower severe duty
  339. RPM's surging +/- 200 rpm's
  340. Ilmor 625 or Merc 600SCI
  341. depth finder
  342. Seeking Thunderbolt V6 Ignition Module
  343. Solid Roller Cam Choice
  344. saftey lanyard
  345. Looking to remove Silent Choice from Boat
  346. Bennett Wont Sell Me Parts
  347. wanted,, 8 bolt vortec 5.7 intake for 2 barrel carb
  348. exhaust is melting
  349. WANTED: XR Input shaft
  350. Corteco Gaskets
  351. 575 sci
  352. How much power loss
  353. 377 #5 Dead hole
  354. VHF radio question
  355. Looking for seats
  356. Clear NoSlip paint?
  357. Are these guys any good???
  358. Dart Pro 1 Vs AFR?
  359. Can someone me an idea what happened
  360. Where to find a Bare Big block??
  361. control adjustment
  362. control adjustment
  363. thanks guys
  364. Fuel cooler
  365. What Aluminum Heads To Buy
  366. Holley jets.....how many ## increase at a time
  367. pcv do they help
  368. Slave Solenoid?
  369. Merc 496 HO with CMI sport tubes and procharger
  370. dyno
  371. Hit Rocks,tore Drive Off,checking Coupler
  372. Volvo 5.0 GXI Fuel Problem
  373. Scarab questions can someone help!!
  374. K-Plane Indicators
  375. Pro One Head Spark Plugs
  376. HP 500 Oil Quantity
  377. Rigging outboards what height on 24 Banana
  378. Where To Look 1st?
  379. Mark IV block and Gen 5 heads...1st hand accounts please!!!
  380. Bilge paint and stripper.
  381. Bilge paint and stripper.
  382. Trim tabs....Electric VS Hydro's
  383. Aluminum Fuel Cells
  384. Aluminum Fuel Cells
  385. Best sounding mufflers
  386. I can't find the serial numbers on my engines or drives.. Where to look?
  387. 496 MAG post-break-in RPM gain
  388. Gen V or Gen VI? Questions.
  389. engine temp
  390. motor plans
  391. ECM 555 Question
  392. What is the cause of problems with the hp500 and 502 engines??
  393. Help finding part
  394. Looking for a MERC 383 MPI
  395. EMI Thunder vs GIL Manifold
  396. 280-380s conversion
  397. 82 40' Excalibur Hawk..Good or bad???
  398. Valve job
  399. WTF is up with this???
  400. Finally got my motor back together & DYNOED!!!
  401. disaster situation in my 500hp's !! help
  402. Help AC Install Question
  403. Trouble shoot a 96 5.7 2 barrel, ANY Thoughts?
  404. Overheat HP525
  405. 91 searay wiring diagram
  406. looking for a RH 26P 4 blade bravo 1 prop
  407. Is this a possible alternator problem?
  408. Wix Racing vs Mobile 1 filters.
  409. Fuel Flow Shut off Valve
  410. JE SRP piston identification needed
  411. Drive Issue
  412. flywheel issue
  413. This injection is nice,but I'd rather be BLOWN
  414. Mercury Synthetic, Any Opinion's
  415. 1998 Searay 5.0 Merc Ign Problem
  416. What does it take to burn pistons on a 500EFI
  417. 525EFI Serpentine Belt
  418. 1981 TRS Gimble Bearing Replacement
  419. Paging Doug (Rumrunner)
  420. Machine Shop Stuff for Sale
  421. 377 6.2L Timing procedure MPI
  422. A Question for anyone with an IMCO EXHAUST Manifolds
  423. How do I keep my transom clean?
  424. bilge cleaner
  425. Is there a difference between a marine and auto coil
  426. problems installing emi exhaust
  427. K-Plane trim pump pressure settings
  428. speedmasters, how much fluid ?
  429. Marine Vinyl Cleaning!!!
  430. GM Vortex HP3 8100 Marine Motor
  431. msd coil - high vibration or ss rynite
  432. Hydraulic Steering, single or double ram???????
  433. Looking at a 81 year boat with TRS drive can....
  434. MSD ignition problem
  435. Gen VI Jesel Belt drive?
  436. Video with alignement tool
  437. OSO shirt
  438. Hooking up MSD distributor with Thunderbolt
  439. Low speed porpoise caused by step?
  440. weiand 177 idler
  441. Coil Recommendations for Blown 588" Tall Deck
  442. MCM 5.0 Litre Alternator
  443. Seastrainer needed to stop a slug of sand...
  444. MPI help needed !!!
  445. 502 Oil Filter?
  446. Water in oil
  447. fuel flow gauge for procharged MPI ????
  448. Holley 4175 (spreadbore) on SBC tuning
  449. Ingenius Marine Software
  450. ALL of em at ONCE ?
  451. guardian issue on 496ho
  452. young performance marine
  453. Recirc Pump Question - Bi-directional - Any one heard of this?
  454. Pulling to the right??
  455. engine wont turn up
  456. 454-330 no start????
  457. Fluctuating Oil Pressure Gauge @ 4500...
  458. Fuel Filter Fram vs Wix
  459. Not another 7.4 upgade thread...
  460. Injector order
  461. 22 Scarab fuel capacity????
  462. drives won't trimm high enough at beach
  463. Need Motor
  464. Engine vacuum
  465. Easy engine alignment question for you experts
  466. Weird Problem With Bravo 1 Drive
  467. 454 Mag Mpi Will Not Rev Over 4,000 Rpm
  468. Dart Big M Block Oil Temp Sender
  469. digital fuel guage
  470. 454 gen 5 questions
  471. Fuel fill change,how difficult is it?
  472. Help with my 502 oil bypass??
  473. 350 mpi cranks but wont start
  474. boat wont go in forward
  475. 454 Mag Efi Fuel Pressure
  476. holley jets
  477. How to make three little kids cry....
  478. I need some help
  479. Help Need to find #1
  480. 350 mpi
  481. Turndown exhaust
  482. Carb jetting help needed
  483. Quick and Quiet II
  484. Removing 496 procharger,need brackets.
  485. How do you know if octane stated on pump is accurate?
  486. High Back Bucket Seats
  487. looking for marine tech in mass
  488. Low Water Pick-Up..... Nose Cone.... Bravo... Clog?
  489. 496 HO Belt
  490. Exhaust Tip
  491. Bravo 1 Upper swivel pin adjustment
  492. mefi 4
  493. Moisture meter
  494. temp gauge problem
  495. 496 HO ciruit breaker
  496. Water leak thru transom housing - what can it be?
  497. 454 Bravo One Overheating. Very strange
  498. What type of shift cable do I have here? pic included
  499. Molded Hose From Power Steering Cooler To Bellhousing
  500. gm power steering pump p/n