View Full Version : General Q & A




  1. need torque value
  2. O2 sensor in my CMIs
  3. A.N. fitting
  4. 500 HP Weight ????
  5. Help with 496 Mag HO
  6. Which 496 ECM Diagnostics Manual?
  7. Oil pan size for 496 stroker
  8. I'm sorry...another procharger question
  9. Drive Trim Switch Broke....
  10. Chevy 454 piston rings
  11. Gas Gauge issue - needle bouncing?
  12. 496HO Water temp
  13. 1996 502 mpi water&oil temps
  14. fuel pump shaft replacement 94 502 mag????
  15. Wire diagram chevy 350 mpi
  16. Who can cut me a new dash panel?
  17. 454 mag--losing spark on 4 cylinders :(
  18. When hitting throttle motor is doing weird things
  19. Gaffrig Monster GPS Speedo error?...
  20. smitty
  21. 500 efi starter issue
  22. 496 IAC Output Fault Mystery...Solved????
  23. power valve or not.
  24. Konrad 800 SCI by R-tech Performance
  25. Alarms going off!
  26. 502 Head, Rocker, Intake torque specs?
  27. Gen VI 454 ?????
  28. Help Please!!! Keep getting water in the oil
  29. SBC, seems low on power latley
  30. twin 496ho's one surges
  31. 496ho fuel problem
  32. Idle Culprit
  33. Help? Bravo 1 Question
  34. power steering pump
  35. 525 EFI H2O pressure
  36. Broke my bravo Bell Housing Assembly
  37. Seawater Pump Help Please
  38. Pipe Plugs
  39. Wtb:502
  40. Looking for a Thunderbolt IV
  41. 502 Overheating....Please Help
  42. New to EFI, wont start, no spark.
  43. Mercury 383 MPI
  44. Iac Position
  45. 525 mechanical fuel pump needed
  46. Does it have a Rev Limiter
  47. Does it have a rev limiter
  48. Bravo Coupler Qustion
  49. What should my average oil temp be on a supercharged 454
  50. Procharger pros and cons?
  51. Installed Dana marine flow torque 496HO, need some help??
  52. LED MEFI codes...?
  53. Whats it worth? How should I sell?
  54. Demon or Holley
  55. What kind of boat is this???
  56. safe timing?
  57. flywheel or flexplate
  58. SC5000 Master reset?
  59. Just testing new avatar
  60. Blew a Spark Plug
  61. Need help to rebuid a mercruiser 454 gen VI
  62. thru hull tips w/flapers
  63. 496 Procharger roll-call
  64. whipple Help!!!
  65. looking for modified 454/502 mpi intake
  66. lock out dist. or run advance, that is the question
  67. Aqua Shade
  68. Water pressure issues. Way too much
  69. Idle surge 502 EFI...HELP!
  70. Growl/vibration in the floor
  71. Reading oil level on the stick...
  72. Oil filter mounts
  73. How low can a 496HO idle?
  74. Gimball ring Bravo 1 wanted
  75. Windshield Screw Replacement / Re-Drilling
  76. 1.5 Years after build...still o.k. to fire up?
  77. Any problems with changing tstat housing styles?
  78. Fuel Pump Relay Question
  79. Plumbing My Eickert Oil Thermostat , Fitting /hose Routing Question
  80. oil cooler
  81. Wiring Harness
  82. Big thanks to RMBUILDER!!!
  83. funky water temps???
  84. Exhaust Question
  85. Lower temp warning switch?
  86. Crap - it's locked up - now what?
  87. Oil Line/fitting ??
  88. Tach Problem
  89. Studs between Bravo upper & lower question
  90. Mercury thunderbolt IV ignition advance module question
  91. 454 Mag Help Needed
  92. 454 mag exhaust choices....Help!!
  93. water reversion
  94. Oil Filter Change
  95. digital kenwood remote
  96. imco drive
  97. TC marine - italy
  98. Excessive steam...could this be the problem?(pic)
  99. HP500EFI Distributor cap
  100. Keeping boat on step
  101. 35 Ex Fountain tails
  102. What about vinyl graphics?
  103. Trim up intermittent, trim down works, still clicks
  104. Crane Fireball Ign. help!
  105. Thru hull fittings....
  106. head bolt torque spec on a 575SCI? Setting Timing?
  107. plenum pop
  108. Big Bore cam suggestions
  109. Calling all EFI/MPI guys
  110. A friend's 502 problem...
  111. Hydraulic assist question Brazil? or Saginaw?
  112. Eddie Marine exhuast Tips
  113. turning my 454 mag into a 500hp
  114. Duramax Diesel for marine applications??
  115. Need Some Help Engine Guys
  116. Oil running too hot
  117. Mercruiser engine HP size ?s
  118. High water pressure
  119. repair steering
  120. 525 cooling questions (2 issues)
  121. bb manifolds
  122. Just got this baby!!!
  123. 454 backfires and misses
  124. Mystery oil leak
  125. Installing a transom mounted pickup?
  126. 502 overheating problem
  127. MSD coil part #8226
  128. merc parts
  129. I think I know the answer.
  130. 1999 454 mag mpi fuel pump
  131. Compression Numbers (in psi) to determine blower compatibility
  132. H20 & Oil Don't Mix
  133. 496ho seawater pump failure
  134. 540 Torque Monster
  135. captains call breaker
  136. Bravo seawater pump belt removal
  137. Procharger for Merc on a 496 Volvo
  138. Merc 502 EFI manifolds
  139. Cometic Head Gasket Part # for a 575SCI???
  140. Bolt on Mods/Upgrades for SB/BB -- Dyno results from CHP Magazine
  141. Engine coupler
  142. Thru Hull Fitting.. Do they make one that goes the other way?
  143. anther problem
  144. 1997 502 MPI Issues - Vapor Lock?
  145. Ignition Problem- need suggestions
  146. Merc 454 Simple Upgrades
  147. Hydraulic Steering getting tight?
  148. Help me freshen my 502s
  149. kohler generator shuting off-whats up?
  150. Blower motor timing questions?
  151. Throttle Cable adjustments
  152. World Pro Oval Port Heads, Need Rectangulars
  153. 310hp or 330hp - Whats the difference.
  154. Cutting Dash - What to use?
  155. arneson #6 standoff box ??
  156. Captain's Call Exhaust Options and Headers
  157. wheres the pressure
  158. Thru-Hull Exhaust Help
  159. Stroker crank install
  160. Borg Warner 71C Limitations
  161. 540 Cam Question
  162. Battery or Alternator?
  163. How do you check the ignition timing?
  164. Gen V to Gen IV Fuel Pump - Sea Pump or Not?
  165. Air fuel meter
  166. Thunderbolt Ignition 454 Magnum
  167. Timing chain oiling on dart big M block
  168. What carbs should I get
  169. MSD advance springs??
  170. gaffrig water temp guage like 70 degrees off?
  171. Help Engine Full Of Water
  172. Adjusting Carb
  173. Opinion on $$$
  174. high pressure fuel pump
  175. Dont laugh !!
  176. Can't get rpm's up?? A TUFF! one here.
  177. Alpha 1 water coming into boat
  178. Anyone running a raylar 203 cam and ECU recal?
  179. MPI experts needed (wiring color code question)
  180. hoses connected to thermostat housing 454 magnum 92'
  181. Checking for rotten stringers and transom Question?
  182. Aeromotive fuel pump
  183. fuel pump
  184. Merc MPI question (wiring harness and distributor)
  185. Desktop Dyno
  186. Extension boxes???
  187. Bravoxr
  188. Miss goes away when #4 spark plug wire is removed?!
  189. Question on a engine and boat combo
  190. torque specs. for my "1991" 502 bottom end??
  191. Need Help merc 2.4
  192. Help! Steering hooked up backwards
  193. Cutting stainless????
  194. pump wire size
  195. 454 Help
  196. Stereo Ignition noise
  197. 496 HO Quick oil change Procedure
  198. Bravo One X Diesel
  199. Aluminum or SS Crossover - Any Difference?
  200. Oil Coolers - Which Runs Cooler - 1/2" or 3/4"
  201. stainless threaded studs
  202. Oil change Question.
  203. '89 7.4L with prob. wiped cam- what grind to use?
  204. jackhammer
  205. 525 sc r.p.m's
  206. Cracks In Bilge/Bulkhead Area
  207. Mech. fuel pump question
  208. Flame if you must - I gotta ask Blower ???s
  209. Stock Bravo lower - what speed is sportmaster style lower needed?
  210. 502CI 4150 carb help
  211. slowing down
  212. Vapor Lock?
  213. need more horse power
  214. Boat Stereo ?
  215. 3" to 4" Riser Conversion
  216. Water pressure guage question
  217. Air/fuel ratio system
  218. Rough water - drive trim or tabs??
  219. octane for 89 330hp 7.4 liter?
  220. Boat won't go straight...help
  221. oil cooler ......
  222. 496 belt problem
  223. up dating prochargers
  224. #4 speedmaster 4 blade props , small shaft
  225. flow rate
  226. Sarasota - Need Mercruiser Mechanic
  227. Oil Filter for 700 Sci
  228. HP500 or modified 502???
  229. Bravo III, how much HP?
  230. Rockers and pushrod lengths
  231. 496 HO Electrical gremlins
  232. 454 mpi question
  233. Cleaning tailpipes???
  234. Imco lower unit
  235. 454 overheating Bravo 1
  236. electric fuel pump mounting
  237. losing rpms
  238. both engines overheating
  239. chrysler 426 hemi
  240. spark plug wires for 1999 7.4mpi
  241. Captains Call problems
  242. down turn mufflers??
  243. Silicon on the bolts?????????????
  244. carb issue
  245. Location of 496 low oil pressure sender
  246. 525 efi getting hot
  247. Ocean city race
  248. how much a 496 ho single engine cost
  249. How to set timing
  250. Yamaha Low Water Pickup
  251. Keith Eickert header question
  252. 502 closed cooling.
  253. trick question
  254. Any Engine Builders Here??
  255. #5 drive Prop shaft seal
  256. Bending S/Steel tubing
  257. torque spec.
  258. Bravo stock lower - price?
  259. Need help with my TV and PS2 install !!
  260. New Exhaust and Dyno
  261. CARB help
  262. removing powerhead on 2.4 merc
  263. Shavings in oil pan
  264. bad gimble or what?
  265. Garmin Gps 2010c To Livorsi Gps Speedo
  266. Rolls of canvas????
  267. Valve height install ?
  268. How do you delete a thread?
  269. 588's oil cooler question
  270. air dock
  271. anyone who comes to Destin/panhandle area
  272. Electric Fuel pums - fuel injection
  273. Great e-bay cams
  274. Compression ratio with 049 heads
  275. total timing on hp 500 and exhaust temps
  276. it's time
  277. Exhaust water temp questions
  278. Anyone have engine knock event recorded by Merc PCM555 ECU?
  279. Gavin Marine
  280. fuel tank contamination
  281. 454 mpi mercruiser.what is max rpm?
  282. ecu with procharger
  283. Most Hour's On A 496 Ho
  284. Procharger fuel preasure issue
  285. Smartcraft Question..
  286. cyclone shorty headers
  287. Looking for a 31' Bullet w/upgrades
  288. engine builders, where's my oil pres. going????
  289. Stock Exhaust To Emi Thunder
  290. Best cylinder heads for a 454
  291. Installation instruction, IMCO Bravo end cap
  292. Saddle tanks?? Who's got em.
  293. knock sensor help
  294. Rust in Engine
  295. 500hp Gurus !!!
  296. need price from snapon dealer
  297. 2 batterys or 1
  298. drew marine mufflers & stabilzer
  299. Has anybody tried an XR BRAVO III prop? or a B-Blades mod on a BravoIII
  300. Bravo XR acting strange
  301. Buzzer Alarm questions
  302. lost power to coil
  303. 525 Rpms
  304. relocating to jacksonville fl.
  305. hp 500 efi ?
  306. EOS Question?
  307. How to remove outdrive
  308. Trim Tab Problem
  309. Cleaning exaust tips
  310. tach problems
  311. need help finding 502 parts
  312. 454 woes..urgent help needed
  313. good anti theft idea ?
  314. No Findy the Correct Carb Size...I think?
  315. Blem Merlin Blocks (Vacuum Failure) ???
  316. 496 mag to ho conversion ?
  317. 575 plugs
  318. Best plugs????
  319. Merc 800 SC e-tops "big tubes"?
  320. Edelbrock cam?
  321. Inverter installation
  322. cam upgrade
  323. Pioneer AVIC-Z1 IN Dash MM Nav System
  324. Any Place To Buy Mobil 1 Mail Order?
  325. Oil type and level for fuel pump housing
  326. ideas on carb size for my 502 ???
  327. What keeps the water out of ...
  328. hydraulic steering and gimbal bearing
  329. 496 Mag HO or 500hp
  330. hard steering
  331. Injector testing procedutre
  332. alpha drive dimensions
  333. 350 MPI S/C - how much of a gain?
  334. fuel pump/sea water pump
  335. Anybody have tickets to cavs
  336. Battery bank hook up?
  337. Doing away with water pump on efi motor ??
  338. 496HO Scantool Fault Code List..?
  339. efi fuel system
  340. recomended fuel pressure setting
  341. Drive indicator cable question.
  342. 496 risers
  343. looking for a used set of bravo III 22" perhaps cupped
  344. Pegged tachometer
  345. fogging blower moters do or dont?
  346. cam for 350 SBC
  347. bow rails
  348. Oil pressure drop on fillters...
  349. Mando Alt. Merc vs. Volvo
  350. Fuel pump question, oil pressure activated switch
  351. Do VIP members get to place a free ad???
  352. Bravo outdrive / transom copatibility
  353. Bravo 1 to HP transom
  354. i need help choosing my 1st powerboat
  355. X-dimension Bravo
  356. need advice
  357. 502 MPI Mercrusier Ideling problem
  358. New mobil 5w-40 synthetic for diesels
  359. Silly question....
  360. Wanted 2 Mercury Water Releif valves
  361. wanted 2 Mercury Water Releif valves
  362. Mando alternator red sense wire
  363. Water in the oil
  364. Keikafer drive indicators
  365. Throttle tension adjustment
  366. Code Question On 2001 496ho
  367. Rusty water leaking from outdrive...
  368. sea strainer hoses
  369. Carb problem or exhaust leak?
  370. Bravo sea pump on Alpha Drive
  371. Best way to setup stereo system and batteries?
  372. bolster seats
  373. 496 Mag RPM Range?
  374. Flush mount through hull water pickup- do they work?
  375. Want to add buzzers - little help
  376. 496 HO oil drain tube problem.
  377. tie bar adjustment
  378. Speeds??????
  379. Plastic steps (inserts)
  380. recommendations on fender size and storage on new Donzi 35ZR
  381. Trailer ?
  382. water in bilge?
  383. 525efi whipple kit
  384. outdrive parts
  385. Torque spec for sbc flywheel bolts
  386. Mercruiser 502 MPI cutting out
  387. help what kind of spark plug MSD
  388. Anyone here a Load Rite Trailer Dealer? HELP!!
  389. 454 Overheating.... HELP
  390. Constant Warning Buzzer - 496 HO
  391. 500 EFI and Corsa Exhaust
  392. Merc ECM tuner needed- VA beach/Norfolk area or within a few hundred miles
  393. Question - I haven't run my engine in almost 2 yrs
  394. Overheating Damage?
  395. Tilt steering replacement question?
  396. changing prop spin
  397. part number info
  398. Overheat first time out.
  399. Hatch Ram Accelerator Kit
  400. 33 CC apache
  401. Dimensions for motor mounts
  402. Where is oil pressure measured?
  403. Two general electrical questons
  404. Steering on an Outlaw....
  405. fluctuating fuel pessure
  406. CMI corrosion problems
  407. Two stage water pump and a Dual water pick up lower
  408. Reasonable Rebuild?
  409. Draining Headers
  410. Mercruiser oil consumption during break-in
  411. leak down test proceedure?
  412. Carburetor or Ignition Problem on S/C 454
  413. Ok What's your guess??
  414. oil filter blew the gasket out
  415. What would cause this?
  416. help..overheating
  417. Low Speed Miss Or Idle Miss
  418. Fuel Problem! help
  419. cam specs.
  420. Paging MikeScarab28XLT
  421. need help- suffering reversion!!!
  422. Bravo problem
  423. fuel pressure
  424. Interior Tie Bar ?????
  425. Help - Over 115 more HP but same RPM!!
  426. Garmin GPSMap 545 - Thoughts?
  427. Need Opinions - Help Guesstimate my 496 Stroker Build
  428. 4.3l mpi upgrades
  429. Closed cooling system on Alpha impeller
  430. Hook in Powerquest 256??
  431. did i do this righT?
  432. SBC Exhaust Upgrade, stock VS modded engine
  433. Major engine help!
  434. EFI distributor cap wiring diagram?
  435. Purging air from Imco dual ram..
  436. NavMan flow meter????
  437. What are these worth ?
  438. SmartCraft SC 1000
  439. two stroke curiousity
  440. Questions about my Cam..???? Need help!
  441. HP500 Oil Thermostat Piping
  442. High idle on a 575SCI
  443. Oil Pressure Issue
  444. cool fuel system
  445. Just installed roller rockers- confused on adjustment- loose rockers after rotating.
  446. cam up grade
  447. Lenco Trim Tabs
  448. knock sense modual for a 7.4mpi vs for a mag
  449. seadoo bombardier 1996 gtx looses power at high rpms
  450. Oil for SSM III
  451. Wow !!!!!!!!!!!!
  452. IAC questions
  453. Building 454 to 496... need help...
  454. 496 Stroker - Stock fuel pump or larger?
  455. New roller 502-peak HP, prop question
  456. Oil Pressure Problems
  457. sea watermounted fuel pump conversion help!!!
  458. 200 volvo dpx500 idle problems
  459. whats next for my 454's?
  460. 500 efi problems
  461. Best method to add O/B steering oil
  462. Troubleshooting Merc 25hp ignition
  463. Engine Guru Help Needed
  464. More Pro Charger tuning Progress and AFR RAtios
  465. Cog Drive Pulley Setup for M-3 Procharger
  466. Solenoids for K-Planes
  467. Oil Pickup Placement
  468. anyone have a 575 sci mercury engine for sale
  469. New cam time?
  470. Anyone know this boat???
  471. Idle Issue
  472. Can a Gen 5 & Gen 6 head be used together on Gen 6 block?
  473. Steering reservoir ?
  474. Yanmar 6LY2STP
  475. Source for 525SC water circulation hoses?
  476. 87 Stinger 260 Advise
  477. siminek performance
  478. WANTED...Rinda/Techmate/Merc scantool for 496HO's
  479. Motor/boat cursed?
  480. 496HO Beep-Beep alarm....then
  481. Oil Leak Repair
  482. Hardin marine-class act people
  483. steering replacement
  484. Av Gas question??
  485. Need Help With Guage Benzels For a 87 Scarab 1
  486. GOODT --time to "Man up"
  487. IN handle trim switch
  488. Merc 525EFI Long Block
  489. Gas tank purging...
  490. Lightning headers
  491. Baja's And No Step Bottom...
  492. Water pressure
  493. 2000 32' Sunsation Dominator dash panels
  494. Spicer Part Numbers
  495. Royal Purple Drive Fluid
  496. Crane HI-6M Advance Setting???
  497. CMI headers
  498. trim tab indicator
  499. RMP redline on 93 502?
  500. raw water pickup question