View Full Version : General Q & A




  1. Gen V or Gen VI? Questions.
  2. engine temp
  3. motor plans
  4. ECM 555 Question
  5. What is the cause of problems with the hp500 and 502 engines??
  6. Help finding part
  7. Looking for a MERC 383 MPI
  8. EMI Thunder vs GIL Manifold
  9. 280-380s conversion
  10. 82 40' Excalibur Hawk..Good or bad???
  11. Valve job
  12. WTF is up with this???
  13. Finally got my motor back together & DYNOED!!!
  14. disaster situation in my 500hp's !! help
  15. Help AC Install Question
  16. Trouble shoot a 96 5.7 2 barrel, ANY Thoughts?
  17. Overheat HP525
  18. 91 searay wiring diagram
  19. looking for a RH 26P 4 blade bravo 1 prop
  20. Is this a possible alternator problem?
  21. Wix Racing vs Mobile 1 filters.
  22. Fuel Flow Shut off Valve
  23. JE SRP piston identification needed
  24. Drive Issue
  25. flywheel issue
  26. This injection is nice,but I'd rather be BLOWN
  27. Mercury Synthetic, Any Opinion's
  28. 1998 Searay 5.0 Merc Ign Problem
  29. What does it take to burn pistons on a 500EFI
  30. 525EFI Serpentine Belt
  31. 1981 TRS Gimble Bearing Replacement
  32. Paging Doug (Rumrunner)
  33. Machine Shop Stuff for Sale
  34. 377 6.2L Timing procedure MPI
  35. A Question for anyone with an IMCO EXHAUST Manifolds
  36. How do I keep my transom clean?
  37. bilge cleaner
  38. Is there a difference between a marine and auto coil
  39. problems installing emi exhaust
  40. K-Plane trim pump pressure settings
  41. speedmasters, how much fluid ?
  42. Marine Vinyl Cleaning!!!
  43. GM Vortex HP3 8100 Marine Motor
  44. msd coil - high vibration or ss rynite
  45. Hydraulic Steering, single or double ram???????
  46. Looking at a 81 year boat with TRS drive can....
  47. MSD ignition problem
  48. Gen VI Jesel Belt drive?
  49. Video with alignement tool
  50. OSO shirt
  51. Hooking up MSD distributor with Thunderbolt
  52. Low speed porpoise caused by step?
  53. weiand 177 idler
  54. Coil Recommendations for Blown 588" Tall Deck
  55. MCM 5.0 Litre Alternator
  56. Seastrainer needed to stop a slug of sand...
  57. MPI help needed !!!
  58. 502 Oil Filter?
  59. Water in oil
  60. fuel flow gauge for procharged MPI ????
  61. Holley 4175 (spreadbore) on SBC tuning
  62. Ingenius Marine Software
  63. ALL of em at ONCE ?
  64. guardian issue on 496ho
  65. young performance marine
  66. Recirc Pump Question - Bi-directional - Any one heard of this?
  67. Pulling to the right??
  68. engine wont turn up
  69. 454-330 no start????
  70. Fluctuating Oil Pressure Gauge @ 4500...
  71. Fuel Filter Fram vs Wix
  72. Not another 7.4 upgade thread...
  73. Injector order
  74. 22 Scarab fuel capacity????
  75. drives won't trimm high enough at beach
  76. Need Motor
  77. Engine vacuum
  78. Easy engine alignment question for you experts
  79. Weird Problem With Bravo 1 Drive
  80. 454 Mag Mpi Will Not Rev Over 4,000 Rpm
  81. Dart Big M Block Oil Temp Sender
  82. digital fuel guage
  83. 454 gen 5 questions
  84. Fuel fill change,how difficult is it?
  85. Help with my 502 oil bypass??
  86. 350 mpi cranks but wont start
  87. boat wont go in forward
  88. 454 Mag Efi Fuel Pressure
  89. holley jets
  90. How to make three little kids cry....
  91. I need some help
  92. Help Need to find #1
  93. 350 mpi
  94. Turndown exhaust
  95. Carb jetting help needed
  96. Quick and Quiet II
  97. Removing 496 procharger,need brackets.
  98. How do you know if octane stated on pump is accurate?
  99. High Back Bucket Seats
  100. looking for marine tech in mass
  101. Low Water Pick-Up..... Nose Cone.... Bravo... Clog?
  102. 496 HO Belt
  103. Exhaust Tip
  104. Bravo 1 Upper swivel pin adjustment
  105. mefi 4
  106. Moisture meter
  107. temp gauge problem
  108. 496 HO ciruit breaker
  109. Water leak thru transom housing - what can it be?
  110. 454 Bravo One Overheating. Very strange
  111. What type of shift cable do I have here? pic included
  112. Molded Hose From Power Steering Cooler To Bellhousing
  113. gm power steering pump p/n
  114. cracked front motor mount
  115. Blowers Superchargers Whipple Chargers
  116. pinion retainer nut
  117. mefi4b vs mefi 3
  118. stellings orange headers
  119. Fire extinguisher
  120. Timing and jetting dual Holley 4150 800cfm's on supercharged 509?
  121. Need Old Evinrude O/B Help
  122. can controls be mixed around
  123. Trim tab installation
  124. Part # help please. Merc 496
  125. Isky Red Zone with Easy Roll Lifters?
  126. Shipping advice...
  127. 350 MPI hard to start, faulty acceleration, max 4000rpm
  128. 350 MPI hard to start, faulty acceleration, max 4000rpm
  129. 502 EFI crankcase vent question
  130. Coolant leak?
  131. Tyler Crockett 454/502 Engine Kit
  132. Thank You BAM Marine!!!
  133. not enough total ignition advance?
  134. Mercruiser MIV Distributor shaft Diameter ?
  135. Speed
  136. Big Block Marine accessory kits?
  137. I need help please.....
  138. 500 hp valve covers removal
  139. Mercury Thunderbolt ignition module question
  140. Shifting problem, OW Bravo drive
  141. 7.4l Convert LH to RH
  142. Arizona speed pcm tune. (Fuel injected guys)
  143. HP500 Rebuild
  144. low fuel pressure on 525 efi
  145. Procharger, oil pressure and water temp?????
  146. transducer move
  147. A/C Inverter
  148. Prop and Drive Locks
  149. 496 HO broken intake valve spring
  150. broken gimbel bearing???
  151. Need info/advice..32' Hustler
  152. Recurculating water pump or bypass...
  153. Air (Vacuum) assist shifters for Bravo
  154. hydraulic fluid ?
  155. New 502
  156. dominator on a 540
  157. spark plugs....
  158. 496 H.O. Electrical, Battery, Voltage Regulator > ???????
  159. What type of Transmission Fluid?
  160. HP 500EFI's won't stay running after warm restart
  161. Edelbrock top end kit
  162. Ignition Module
  163. Looking for options...
  164. how many BTU,s
  165. new guy looking for some help with 496 build
  166. Dual ram install
  167. Dart Big M
  168. water pump problems
  169. Leaking Trim Pump
  170. all you big horsepower guys.... look at these
  171. Titanium Tail Pipes
  172. 496 mag idle problem
  173. Quick Oil Filter Question Fram HP4
  174. Custom Engine Hatches
  175. Need .040 stocked blower piston... Help.
  176. wow HP loss through Livorsi Bandit mufflers
  177. update on my 496HO problem
  178. What is the best way to "burp" the hydraulic..
  179. Top speed runs?
  180. How do I hook up my Tach to my MSD 6AL
  181. Engine serial number
  182. 34 Scarab III
  183. Ignition Question
  184. rust!!!!!!!
  185. too much small block ?
  186. For you chevy gurus...blower on a stock GM motor
  187. Hydraulic Steering Noisy
  188. two questions.....
  189. water pressure gauge hose
  190. boat running slower in heat and humidity
  191. Mechanical Indicator Cables - How much indication slop?
  192. 5.7lx Cutting Out
  193. An Fittings- How Do You Assemble Without F&*^ing Up The Anodize
  194. Procharger installation on a 500 EFI ????s
  195. 496ho oil filter
  196. Fuel economy??
  197. keikaffer merc racing drive gauge
  198. Changing pick-up coil in distributor-Delco HEI?
  199. Billet Marine water crossover kit
  200. bolster brackets
  201. B&M EFI superchargers
  202. 454 mag rpm question
  203. 454 out of a truck-work in a boat?
  204. Who is using Aluminum heads in salt water?
  205. External steering HELP !!!
  206. Pvs Plugs
  207. Bravo One and Three
  208. Over heating problems on a step hull boat
  209. Riser Gasket question (Mercruiser)
  210. TRS Max Trim?
  211. need torque value
  212. O2 sensor in my CMIs
  213. A.N. fitting
  214. 500 HP Weight ????
  215. Help with 496 Mag HO
  216. Which 496 ECM Diagnostics Manual?
  217. Oil pan size for 496 stroker
  218. I'm sorry...another procharger question
  219. Drive Trim Switch Broke....
  220. Chevy 454 piston rings
  221. Gas Gauge issue - needle bouncing?
  222. 496HO Water temp
  223. 1996 502 mpi water&oil temps
  224. fuel pump shaft replacement 94 502 mag????
  225. Wire diagram chevy 350 mpi
  226. Who can cut me a new dash panel?
  227. 454 mag--losing spark on 4 cylinders :(
  228. When hitting throttle motor is doing weird things
  229. Gaffrig Monster GPS Speedo error?...
  230. smitty
  231. 500 efi starter issue
  232. 496 IAC Output Fault Mystery...Solved????
  233. power valve or not.
  234. Konrad 800 SCI by R-tech Performance
  235. Alarms going off!
  236. 502 Head, Rocker, Intake torque specs?
  237. Gen VI 454 ?????
  238. Help Please!!! Keep getting water in the oil
  239. SBC, seems low on power latley
  240. twin 496ho's one surges
  241. 496ho fuel problem
  242. Idle Culprit
  243. Help? Bravo 1 Question
  244. power steering pump
  245. 525 EFI H2O pressure
  246. Broke my bravo Bell Housing Assembly
  247. Seawater Pump Help Please
  248. Pipe Plugs
  249. Wtb:502
  250. Looking for a Thunderbolt IV
  251. 502 Overheating....Please Help
  252. New to EFI, wont start, no spark.
  253. Mercury 383 MPI
  254. Iac Position
  255. 525 mechanical fuel pump needed
  256. Does it have a Rev Limiter
  257. Does it have a rev limiter
  258. Bravo Coupler Qustion
  259. What should my average oil temp be on a supercharged 454
  260. Procharger pros and cons?
  261. Installed Dana marine flow torque 496HO, need some help??
  262. LED MEFI codes...?
  263. Whats it worth? How should I sell?
  264. Demon or Holley
  265. What kind of boat is this???
  266. safe timing?
  267. flywheel or flexplate
  268. SC5000 Master reset?
  269. Just testing new avatar
  270. Blew a Spark Plug
  271. Need help to rebuid a mercruiser 454 gen VI
  272. thru hull tips w/flapers
  273. 496 Procharger roll-call
  274. whipple Help!!!
  275. looking for modified 454/502 mpi intake
  276. lock out dist. or run advance, that is the question
  277. Aqua Shade
  278. Water pressure issues. Way too much
  279. Idle surge 502 EFI...HELP!
  280. Growl/vibration in the floor
  281. Reading oil level on the stick...
  282. Oil filter mounts
  283. How low can a 496HO idle?
  284. Gimball ring Bravo 1 wanted
  285. Windshield Screw Replacement / Re-Drilling
  286. 1.5 Years after build...still o.k. to fire up?
  287. Any problems with changing tstat housing styles?
  288. Fuel Pump Relay Question
  289. Plumbing My Eickert Oil Thermostat , Fitting /hose Routing Question
  290. oil cooler
  291. Wiring Harness
  292. Big thanks to RMBUILDER!!!
  293. funky water temps???
  294. Exhaust Question
  295. Lower temp warning switch?
  296. Crap - it's locked up - now what?
  297. Oil Line/fitting ??
  298. Tach Problem
  299. Studs between Bravo upper & lower question
  300. Mercury thunderbolt IV ignition advance module question
  301. 454 Mag Help Needed
  302. 454 mag exhaust choices....Help!!
  303. water reversion
  304. Oil Filter Change
  305. digital kenwood remote
  306. imco drive
  307. TC marine - italy
  308. Excessive steam...could this be the problem?(pic)
  309. HP500EFI Distributor cap
  310. Keeping boat on step
  311. 35 Ex Fountain tails
  312. What about vinyl graphics?
  313. Trim up intermittent, trim down works, still clicks
  314. Crane Fireball Ign. help!
  315. Thru hull fittings....
  316. head bolt torque spec on a 575SCI? Setting Timing?
  317. plenum pop
  318. Big Bore cam suggestions
  319. Calling all EFI/MPI guys
  320. A friend's 502 problem...
  321. Hydraulic assist question Brazil? or Saginaw?
  322. Eddie Marine exhuast Tips
  323. turning my 454 mag into a 500hp
  324. Duramax Diesel for marine applications??
  325. Need Some Help Engine Guys
  326. Oil running too hot
  327. Mercruiser engine HP size ?s
  328. High water pressure
  329. repair steering
  330. 525 cooling questions (2 issues)
  331. bb manifolds
  332. Just got this baby!!!
  333. 454 backfires and misses
  334. Mystery oil leak
  335. Installing a transom mounted pickup?
  336. 502 overheating problem
  337. MSD coil part #8226
  338. merc parts
  339. I think I know the answer.
  340. 1999 454 mag mpi fuel pump
  341. Compression Numbers (in psi) to determine blower compatibility
  342. H20 & Oil Don't Mix
  343. 496ho seawater pump failure
  344. 540 Torque Monster
  345. captains call breaker
  346. Bravo seawater pump belt removal
  347. Procharger for Merc on a 496 Volvo
  348. Merc 502 EFI manifolds
  349. Cometic Head Gasket Part # for a 575SCI???
  350. Bolt on Mods/Upgrades for SB/BB -- Dyno results from CHP Magazine
  351. Engine coupler
  352. Thru Hull Fitting.. Do they make one that goes the other way?
  353. anther problem
  354. 1997 502 MPI Issues - Vapor Lock?
  355. Ignition Problem- need suggestions
  356. Merc 454 Simple Upgrades
  357. Hydraulic Steering getting tight?
  358. Help me freshen my 502s
  359. kohler generator shuting off-whats up?
  360. Blower motor timing questions?
  361. Throttle Cable adjustments
  362. World Pro Oval Port Heads, Need Rectangulars
  363. 310hp or 330hp - Whats the difference.
  364. Cutting Dash - What to use?
  365. arneson #6 standoff box ??
  366. Captain's Call Exhaust Options and Headers
  367. wheres the pressure
  368. Thru-Hull Exhaust Help
  369. Stroker crank install
  370. Borg Warner 71C Limitations
  371. 540 Cam Question
  372. Battery or Alternator?
  373. How do you check the ignition timing?
  374. Gen V to Gen IV Fuel Pump - Sea Pump or Not?
  375. Air fuel meter
  376. Thunderbolt Ignition 454 Magnum
  377. Timing chain oiling on dart big M block
  378. What carbs should I get
  379. MSD advance springs??
  380. gaffrig water temp guage like 70 degrees off?
  381. Help Engine Full Of Water
  382. Adjusting Carb
  383. Opinion on $$$
  384. high pressure fuel pump
  385. Dont laugh !!
  386. Can't get rpm's up?? A TUFF! one here.
  387. Alpha 1 water coming into boat
  388. Anyone running a raylar 203 cam and ECU recal?
  389. MPI experts needed (wiring color code question)
  390. hoses connected to thermostat housing 454 magnum 92'
  391. Checking for rotten stringers and transom Question?
  392. Aeromotive fuel pump
  393. fuel pump
  394. Merc MPI question (wiring harness and distributor)
  395. Desktop Dyno
  396. Extension boxes???
  397. Bravoxr
  398. Miss goes away when #4 spark plug wire is removed?!
  399. Question on a engine and boat combo
  400. torque specs. for my "1991" 502 bottom end??
  401. Need Help merc 2.4
  402. Help! Steering hooked up backwards
  403. Cutting stainless????
  404. pump wire size
  405. 454 Help
  406. Stereo Ignition noise
  407. 496 HO Quick oil change Procedure
  408. Bravo One X Diesel
  409. Aluminum or SS Crossover - Any Difference?
  410. Oil Coolers - Which Runs Cooler - 1/2" or 3/4"
  411. stainless threaded studs
  412. Oil change Question.
  413. '89 7.4L with prob. wiped cam- what grind to use?
  414. jackhammer
  415. 525 sc r.p.m's
  416. Cracks In Bilge/Bulkhead Area
  417. Mech. fuel pump question
  418. Flame if you must - I gotta ask Blower ???s
  419. Stock Bravo lower - what speed is sportmaster style lower needed?
  420. 502CI 4150 carb help
  421. slowing down
  422. Vapor Lock?
  423. need more horse power
  424. Boat Stereo ?
  425. 3" to 4" Riser Conversion
  426. Water pressure guage question
  427. Air/fuel ratio system
  428. Rough water - drive trim or tabs??
  429. octane for 89 330hp 7.4 liter?
  430. Boat won't go straight...help
  431. oil cooler ......
  432. 496 belt problem
  433. up dating prochargers
  434. #4 speedmaster 4 blade props , small shaft
  435. flow rate
  436. Sarasota - Need Mercruiser Mechanic
  437. Oil Filter for 700 Sci
  438. HP500 or modified 502???
  439. Bravo III, how much HP?
  440. Rockers and pushrod lengths
  441. 496 HO Electrical gremlins
  442. 454 mpi question
  443. Cleaning tailpipes???
  444. Imco lower unit
  445. 454 overheating Bravo 1
  446. electric fuel pump mounting
  447. losing rpms
  448. both engines overheating
  449. chrysler 426 hemi
  450. spark plug wires for 1999 7.4mpi
  451. Captains Call problems
  452. down turn mufflers??
  453. Silicon on the bolts?????????????
  454. carb issue
  455. Location of 496 low oil pressure sender
  456. 525 efi getting hot
  457. Ocean city race
  458. how much a 496 ho single engine cost
  459. How to set timing
  460. Yamaha Low Water Pickup
  461. Keith Eickert header question
  462. 502 closed cooling.
  463. trick question
  464. Any Engine Builders Here??
  465. #5 drive Prop shaft seal
  466. Bending S/Steel tubing
  467. torque spec.
  468. Bravo stock lower - price?
  469. Need help with my TV and PS2 install !!
  470. New Exhaust and Dyno
  471. CARB help
  472. removing powerhead on 2.4 merc
  473. Shavings in oil pan
  474. bad gimble or what?
  475. Garmin Gps 2010c To Livorsi Gps Speedo
  476. Rolls of canvas????
  477. Valve height install ?
  478. How do you delete a thread?
  479. 588's oil cooler question
  480. air dock
  481. anyone who comes to Destin/panhandle area
  482. Electric Fuel pums - fuel injection
  483. Great e-bay cams
  484. Compression ratio with 049 heads
  485. total timing on hp 500 and exhaust temps
  486. it's time
  487. Exhaust water temp questions
  488. Anyone have engine knock event recorded by Merc PCM555 ECU?
  489. Gavin Marine
  490. fuel tank contamination
  491. 454 mpi mercruiser.what is max rpm?
  492. ecu with procharger
  493. Most Hour's On A 496 Ho
  494. Procharger fuel preasure issue
  495. Smartcraft Question..
  496. cyclone shorty headers
  497. Looking for a 31' Bullet w/upgrades
  498. engine builders, where's my oil pres. going????
  499. Stock Exhaust To Emi Thunder
  500. Best cylinder heads for a 454