View Full Version : General Q & A




  1. 496 Mag filling bilge with water
  2. Looking to upgrade alternator on a 496 mag
  3. 502 Idling/throttle-up Issue
  4. Teague rockers cracking has anyone seen this...
  5. Scarab overheat issue new rebuild
  6. 2007 525 efi
  7. KAMMA boots
  8. Broken Pushrod ball
  9. NXT1 Transmission problem, Advice, Service Repair Manual?
  10. Going crazy on my Mercruiser 496, need Help!
  11. Valve adjustment procedure
  12. Flywheel On 496 Stroker
  13. Wrapping my 47 Fountain? Who in Florida provides a decent wrap and how much $$?
  14. 496 Coolant in Bilge
  15. Shop crane help
  16. starboard runing cold!
  17. need cam expert help
  18. Baja not charging acting funny!!!! Quick question think I fixed want thoughts
  19. Broken Pushrod
  20. upgrading cam on 454 mag crossram efi
  21. 496HO issues, help and feedback needed!
  22. Has anyone used AUTOTEC pistons?
  23. Teage Marine Camshafts
  24. Electrical Question for Wellcraft NOVA III
  25. Cam advise
  26. Goto guy for tuffest bravos?
  27. 500efi problem
  28. Power Steering Pump Issue
  29. Gen v 7.4 belt diagram
  30. Mod my 420 intakes or buy 8:71's??
  31. Too much water pressure
  32. Header Temps ?
  33. 502 Mag cooling system problem
  34. Lost forward/ reverse. Help!!!!
  35. Mild 350 cams
  36. tranny making grinding noise
  37. Need add on steering help ASAP so I can boat tomorrow
  38. Any dyno in central Pa./ ne Maryland
  39. Port engine still weak, advice needed. 2005 496 ho's
  40. Grease points on Bravo?
  41. Whats up with Revolution Marine?
  42. Mirage 202 with a 492?
  43. 496 ho question
  44. Stock 525sc's
  45. Steering
  46. 502 MPI Nightmare!!!
  47. I am thinking about freshening my blown 454 mags after the season
  48. 496 seawater pump
  49. Any pointers for rebuilding Borg Warner 72c transmissions?
  50. thunderbolt ignition
  51. Engines won't turn more than 4200 RPM
  52. Name this part off of BBC whipple charged engine
  53. Mercruiser 454 MAG MPI weak!! help!
  54. 454 mag carbed timing??
  55. dominator carb question
  56. High idle trouble. Lookin for help
  57. Engine Stalling Issue
  58. Mercury Racing Motor Mounts
  59. 525 sc what lifters to use non roller
  60. Words to the wise from the not so wise regarding ignition pickup module or icm...
  61. Best Gen. For a 496 Stroker Gen 4 or Gen 6
  62. 7.4 mpi 2000 model had gaskets replaced the price good???
  63. Need Part Numbers for Gen V/VI 454 flywheel - cast crank versus forged
  64. 385HP 454 Rod knock
  65. 496 stroker jetting questions
  66. NMEA 2000 actuators?
  67. Figured out rpm surge but need some advice
  68. Can someone please tell me what boat this is?
  69. what is this amplifier/rectifier looking thing?
  70. 525efi 600sci and 700sci Heads... are they all the same???
  71. Snap on timing gun on 502 mag??
  72. Fuel pump fitting size 525sc
  73. 454 to 502 engine swap reused TB5 from 454 and im having ignition problems...i think
  74. problem with dual ram tab
  75. Merc 525 header bolt torque??
  76. BBC 540 performance upgrade ?'s
  77. Gaffrig Tachs/Smartcraft acting up
  78. Mechanical fuel pump on a fuel injected 454ci?
  79. ecm relocation
  80. 496 Oil Cooler, where to buy!
  81. Whipple VS Procharger
  82. Is GM Vortec 454 essentially the same thing as the 300-HP L29 7.4L?
  83. I.T.S. and imco stand off boxs question
  84. optima batterys
  85. How easy to go dual hydraulic steering from single?
  86. Bimini top suggestions
  87. Mercury 800 SC's has no boost,Why?
  88. Through hull water pickup help
  89. AFR 290 VS DART Pro 1 head
  90. Ridiculous marine pricing on IAC valve
  91. Stock valve covers with AFR heads and full roller rockers
  92. Mr Gadgets, Dick tryce
  93. Reistering boat with USCG (In Illinois)
  94. leaking imco risers
  95. what should the sea water pump pressure sensor read on a 496
  96. Gen VI oil pressure reliefs/bypass
  97. Exhaust leak
  98. tailpipe wall thickness?
  99. Wet Exhaust/Steam
  100. 502 mag dumping fuel out exhaust..
  101. Towing 11,500 LB Donzi FL to MI - Tips
  102. 502 MPI engine stalling
  103. Bravo XR Trim Indicator Help Needed
  104. buttons for the out drive trim
  105. 496 fault codes help
  106. Corsa captains call power question
  107. 496 mag, double beep alarm every 60 seconds. Code 37 sea pump pressure low.
  108. Drive showers
  109. Want to put in a electric fuel pump..have questions..
  110. steering ram leaking
  111. 300vx flush kit
  112. header fitment
  113. Water leaking from exhaust y-pipe coupler?
  114. What not to do with exhaust.
  115. Need help! Raw sea water pump
  116. presssure testing exhaust ?
  117. sealer for cockpit floor ?
  118. Correct values map sensor 496 ho ?
  119. Mercruiser 496 MPI running borderline hot....
  120. Exhaust manifold and risers ok? 454 MAG MPI's
  121. Water pressure gage input
  122. 1999 502 Mag Stumble and Back Fire After Long Run Time
  123. SAT Radio Antenna Wire Question
  124. Chris Craft Cooling
  125. Repairing Gimbal Rings
  126. exhaust temperature on 525
  127. circulating pump
  128. Saltwater Flushing
  129. Procharging 454mags ??
  130. Alternatives to Procharger intercooler
  131. Boat not sitting on all trailer bunks?
  132. Old School 425 hp Coupler Question
  133. 350 Mag cooling issues HELP
  134. What fluid for trim?
  135. Please help with spark plug question on 572's
  136. Would like some input from the pro's on Carb jetting for 489 with AFR's
  137. Wiring diagram for starter lugs and slave solenoid?
  138. 350 SBC Carb Size questions
  139. 496 HO intermittently not starting back up after running it.
  140. 502EFI excessive advance
  141. Coolant temp sensor question?
  142. 496 ho bottem end strength
  143. How can you tell the diff in a bravo and an XR bravo ?
  144. IMCO Hydraulic Steering Bushings
  145. 454 carb thunderbolt IV... timing all over??
  146. 454 7.4 mpi sea pump picture what do you think???
  147. Northstar muffler rebuild kits
  148. new baja owner, blown motor , need advice please.
  149. CMI E-Top Install on 496 Mag
  150. Cuting off problem
  151. MSD ready to run distributrs? good or bad???
  152. 496 w/Whipple rebuild specs & clearances
  153. 525 help
  154. Planning to repower my 292 Fastech
  155. 454 mag mpi inboard stalling when put in neutral intermittently
  156. Stainless Marine Exh Manifolds, will they work with 700 hp engine build?
  157. Water pressure at idle?
  158. Cavitation & Overheating - Possibly related ?
  159. K Plane Parts
  160. 454 7.4 mpi l VI sea pump back flush question and help please
  161. 502 mag lack of power
  162. 525's Running Hot
  163. Has anyone seen Jerry Haney lately? Having trouble getting ahold of him.
  164. 525efi high idle after wot blasts
  165. Carb help
  166. Boat leans to port side when running..
  167. Gauges pegged?
  168. Broken sterndrive continuity screw.
  169. Strainers Leak - How to fix? (how to seal)
  170. New Add-on hydraulic steering issue
  171. Carb and 250 Blower VS Fuel Injection and Procharger
  172. merc raw water pump, 350 v8 engine driven. Water head height?
  173. 454 mpi merc oil cleaner when doing oil change??
  174. CMI E-Tops
  175. Kenwood Wired Remote Installation
  176. Need help figuring out intermittent starter issue after engine swap
  177. Possibly Selling The Boat ???'s
  178. Raptor performance & replacement engines
  179. 454 base timing
  180. Question on books for SBC marine builds
  181. Engine harness complete??
  182. Exhaust / cam question
  183. Tach flickering key on not running.... 454 carb
  184. Another Help on Cam Choice Thread
  185. Hotspots on engine
  186. Running hot vs cold plug under boost?
  187. Basset Header ?
  188. HELP! Questions on which Thermostat housing to use with EMI exhaust?
  189. Steering Issue on Checkmate 253
  190. What boat is this?
  191. ZZ502 few questions???
  192. KE 2 piece valve covers LEAK!
  193. imco powerflow exhaust revrsion
  194. Loose steering on a Formula
  195. Bent/broke push rod or broken valve spring or??? also carb issue stock 454
  196. Engine bogging after jumping waves
  197. need pro carb setting info
  198. 496 ho IAC problems what now?
  199. Who's running fuel press regulators with carbs?
  200. potential dangerous issue / fuel tank snding unit
  201. Oil and Water leaking on 496 MAG?
  202. 496HO missing at high RPM
  203. timing chain?
  204. What would cause my hydro lock???
  205. Solid roller lash check
  206. sea water pump hose connection
  207. Changing Supercharger Oil
  208. 2005 496HO MAX 4000 RPMs
  209. Adding a fuel press regulator
  210. Water Pressure/525 EFI with a Whipple
  211. Want to add an Hour Meter
  212. Marine Upholstery
  213. HP500 Small Gear Reduction Starters
  214. 1991 eliminator daytona fells like i am draging something at low speeds
  215. Wierd ignition issue....454 Thunderbolt IV
  216. 1995 502 will not go above 1800 rpms
  217. Power steering Hose thread dimensions
  218. Prop blowing out!
  219. fountain 10 meter oil temp please help
  220. Suction From Fuel Water Separating Filter
  221. New XR drives lower water pickups plugged with paint?
  222. Kill laynard....
  223. replaced engine now Alternator wont charge
  224. Any tips on removeing water from oil?
  225. Bravo XR props haft
  226. Fuel Rail?
  227. Gimbal bearing driver Alpha 1
  228. IAC for Whipple 2.3
  229. comparison, Eliminator vs Bryant
  230. Pistons.......... Not even JE can help.
  231. What is this hose that broke off my Bravo 1 gimbal? (pic)
  232. prop / engine question
  233. Elec and mechanical fuel pumps
  234. Stock Weber Carb changes for Engine upgrades ?
  235. ME3 alarm sensors broken
  236. Exhaust riser gasket
  237. Boat performance changes?!
  238. 496 ho with boost? reliable?
  239. Difference in HP500 Ignition Modules by year...???
  240. Muffler Recommendations
  241. ProCharged 502 Checkmate Prop
  242. Add on hydraulic steering issue
  243. no spark
  244. Oil Pick Up Part # for 454 gen IV mag (have the melling oil pump already) Thx
  245. Whats the deal who is who..?
  246. nos on a boat?
  247. Canton offshore pan, what's the bracket for?
  248. k planes and hyd. steering
  249. help with deciding on a new boat
  250. Thinking of making the bulkhead between the cockpit and the engines removable....
  251. transom u bolts
  252. Better to make more power from 3K - 5K, or 4K - 5500?
  253. Engine harness adapter 10-14pin
  254. Starter bolt holes
  255. I need some prop advice after doubleing horse power.
  256. Part identification
  257. 496 won't start
  258. Top mounting starter for a bravo one?
  259. 502 MAG MPI lacking power
  260. Transducer question
  261. Formula 302 LS Repower Questions
  262. B&m 250 efi mercruiser supercharger no power/limp mode?
  263. What sealing procedure to use for ARP head studs in water jackets?
  264. Starter solenoid
  265. Bad Lifter?
  266. livorsi gps speedo ?
  267. 496 ho sea pump
  268. Fuel pressure sensors
  269. Dry exhaust
  270. Torque spec for Gen VI oil filter adapter?
  271. Merc trim Tab Ram removal.
  272. hydraulic lines
  273. High oil temperature ?
  274. Who has red underwater LEDs and / or red LED interior lights?
  275. Water temp issue (help)
  276. Valvetrain noise in new engines
  277. How to tell what cam and lifters are in my 502
  278. starter bolt torque
  279. Cool Fuel consumption ap for Mercury engines
  280. New engine disaster need engine guru help!
  281. XR DWP vs LWP
  282. Looking for advice on 454 or 502
  283. motor knocking after tune up
  284. Remove baffles fromthru hull
  285. OK...i got shocked by my throttles today.....HELP!!
  286. Adding Silent Choice
  287. SS Bow Protector
  288. 454 mag mpi blew out spark plug and now has top end taping!!
  289. mercruiser engine alarm buzzer
  290. Need Help, Electrical mystery.
  291. Blower carbs???
  292. carb jeting question
  293. 502 Dies
  294. Octane questions
  295. Mercruiser 496 plug wires???
  296. Quick 383 build question
  297. Anybody tried to drill and tap brass inserts?
  298. TRS Anodes
  299. 2000 Formula Fastech Blows shore GFI when main boat AC breaker is flipped on - HELP!
  300. Question on Bravo lower
  301. Anyone have a pic of a merc throttle cable converted to a work on a Holley carb?
  302. Aluminum 496 manifolds - bolt hardware
  303. Best prop for carrying loads?
  304. Remote power steering reservoir pump cap for old style pump?
  305. Engine Help
  306. trying to understand what exhaust is needed and why
  307. Tach jumps all over
  308. CNY Repair Shops??
  309. We need a after market performance engine section.
  310. 0 oil pressure
  311. Water Pressure/Volume Problem.. .Help
  312. Good cleaner and protector ?
  313. DId I do something wrong?
  314. GAffrig gauge senders?
  315. looking for a 502 mag. short block or long block
  316. Bravo One Lower Unit question
  317. Best top mount starter
  318. No Power to dash or engine
  319. Boat dies when put into gear... Need help!
  320. Air /fuel ratio in super charged 540
  321. WTF is wrong that I cant post
  322. What's up with DONZIDICECT.COM??
  323. Boat engine hatch stitching coming apart
  324. 1999 502 Mag Runs at 100* Need some help...
  325. new blower motor shuts off after being run at speed
  326. Corsa Switchable opeation
  327. Volvo Dual Prop Alignment
  328. hydraulic engine hatch lift cylinder question
  329. gen VI oil filter sandwich adapter
  330. Anyone ever had a crack or weap hole in a new set of World iron heads?
  331. Water in #7? and milky oil. Need Ideas
  332. edelbrock victor jr heads leaking water
  333. Rollmaster gen 6 timing set no fit??
  334. DIACOM Marine question
  335. Name that failure!
  336. Water in merc trans ( trs drive)
  337. Trash In Fuel Filter? Areomotive Pukeing? or
  338. Valvoline Vr1 racing oil
  339. Hardin Marine Fuel Sender
  340. Beeping from boat
  341. IMCO hydraulic steering fluid?
  342. What exhaust gasket for AFR heads?
  343. Fresh 454 engine build which carb should I run?
  344. red w purple stripe or red w/black stripe
  345. 1999 Volvo Penta SBC won't start...weak spark?
  346. Swapping out my quadrajet for a holley 4160 or 4150 carb ''CARB GUYS COME ON IN''
  347. Oil temp, oil coolers, water temp and pressure advice.
  348. Blow Through Carburetors
  349. Motor back in and rear main leak !
  350. no power tomain red wire, or starter . help me please.
  351. Looking For Oil recomendation
  352. Motor Tight
  353. Rebuilding my 99 Baja 502 Mag MPI
  354. Alarm sounding, 502 MAG MPI....
  355. Where is my oil hideing?
  356. Blower Motor seems fuel starved
  357. Head gaskets
  358. Fastest Single engine V
  359. 525's Running Hot
  360. Does My Oil Filter On My 496 HO Mags Have An Anti-Drain Back Valve?
  361. fuel tank sending unit depth
  362. Transmission Cooler sizing BW 72C
  363. ARP Stainless exhaust bolts - 496 exhaust manifolds ?
  364. CMI Rep
  365. eddie marine??????
  366. Lost oil pressure and then a broken starter bolt
  367. 496 low end knock / rattle - need help
  368. Oildyne trim pump replacement motor?
  369. 575sci.... Fresh water cooling...... Anyone ?
  370. Push-On hose for fuel plumbing?
  371. power trim guage
  372. 496 HO PCM Re-Flash
  373. 26 corsa
  374. spark plug heat range selection
  375. Quicksilver mirage prop question
  376. Stainless steel Sea Pump
  377. low WOT on mercruiser 5.7 with 19p prop
  378. Issues after 502 Mag MPI swap in my 2000 Baja 272
  379. 93 502 mag power steering cooler
  380. Import a boat from Canada to the US
  381. fuel flow issues
  382. Should I change my oil?
  383. Mobil 1 V-Twin 20-50 Full Synthetic Oil
  384. Who does Vinyl Wrap ?
  385. relocating exhaust tips/header change
  386. Insurance Company Denies Claim - HELP!!
  387. Will these Corsa muffled tips create too much back pressure?
  388. New 502 block bore
  389. Blow through carb vers regular?
  390. Building my first boat engine.
  391. running boat without water for cooling? How long?
  392. 496 supercharged - oil type?
  393. oil thermostat housing and cooler priming
  394. Another Cam and reversion ? but also risers and exhaust ?
  395. Fountain K Plane Trim Solenoids
  396. Water reversion camshaft question
  397. Exhaust Valve Guide Clearance
  398. 415 hp 502 efi engine temp
  399. water jacket sealant
  400. Big block Chevy 454 Gen V cutawy drawing
  401. U-joint froze on my TRS. What part number to replace it?
  402. How to remove exhaust hose?
  403. Is it worth putting coolant hoses back to front on a 4 corner intake manifold
  404. Bravo 1 upper/lower compatibility
  405. Help with ?'s
  406. Gimbal boot ring
  407. power steering actuator and high pressure line
  408. Smartcraft System View Race Edition Help
  409. 500efi, exhaust question
  410. whipple 525 ecm flash
  411. Help with HTM
  412. drive fluid in bilge
  413. Ready to run distributors
  414. Play in Steering Wheel
  415. Switching from carb to 525's.questions?
  416. Carb box procharger
  417. Is it worth adding a PCV like on the HP500's?
  418. Will 454 risers bolt up to the 496 aluminum manifolds?
  419. wire color identification
  420. Bravo 1 gear lube capacity.
  421. Gaffrig Digital GPS speedo
  422. Carb needle material?
  423. mr gasket
  424. Is this a Bravo Drive?
  425. More Useful Information
  426. Any one know this boat?
  427. oil temp sender
  428. Dry exhaust flaps??
  429. Mr. Gasket
  430. 1988 Mark IV 454 Mag--500 rpm loss but its random
  431. Edelbrock Performer RPM Intake Manifold vs GM 6269318 marine intake
  432. Gen six 502 casting numbers
  433. do i need a 496 y pipe
  434. Where to buy neutral safety switch
  435. Lets talk mechanical fuel pumps
  436. Water pressure..draw off location?
  437. Exhaust question
  438. intake gasket
  439. where i can get this battery hold down bolt?
  440. MerCruiser 502 Mag MPI wont shut off....
  441. Help, Starter Issue
  442. idle is up at 2000 help
  443. Hydraulic Steering installation advice needed
  444. Fuel Return
  445. Stock 502 carb questions
  446. intake gasket
  447. 525 question
  448. Can anyone identify this fuel pump?
  449. External Steering
  450. Audio: Feedback through Amplifier with Trim
  451. Buzzing Electric Fule Pump
  452. 320EFI timing mode. HELP!
  453. VST tank vent. Will this work? pics
  454. port tab wont go down..
  455. To bypass or not to bypass...
  456. help with cam shaft 454
  457. Gen V Big block oil cooler help
  458. Broken 454, options?
  459. new help intake and carb setup
  460. Trim switch not working
  461. sea pump hose size
  462. gear lube
  463. Distributor not dropping down
  464. 525 efi power sterring pump
  465. Where can I get hatch mirrors
  466. Moving Fuel Filter
  467. Oil Pump shaft length?
  468. drive alignment questions
  469. Mercury Side Mount Control - Trailer Button
  470. driving a boat question
  471. drive indicator
  472. engine i.d. 454
  473. Hyd steering install help
  474. put in new motor, mounts not lining up
  475. 496HO 2003/ forged internals???
  476. Oil Press and VM Gauge
  477. Speedometer Hose Blew Off Thought Boat Was Sinking!!!
  478. Alarm Advise - for driveway, traveling by road & anchoring - need advise
  479. Looking for TRS Bellow part numbers 60932A4 or 54406A 1
  480. Dipstick tube extend to bottom of pan? Merc 420's
  481. 502 mpi running on 4 cylinders
  482. 500efi mysterious plug..?
  483. Can this distributor & coil be used on a carbed engine?
  484. Hyd. steering question? Need some help guys.
  485. HP 500 Bulldog
  486. So how many batteries can you safely charge??
  487. what oil in a whipple
  488. Erratic Vaccuum readings
  489. HP500 Cylinder Head Bolt Torque Spec
  490. More 575sci build questions
  491. Dual cable steering on 98 25' Outlaw
  492. Engine alignment needed?
  493. distributor
  494. Strange "dotted" pattern on valve seats and faces
  495. transom / exhaust rubber seals?
  496. help needed identifying Scarab trim tabs
  497. upolstrey shop in NE Maryland or Central P
  498. 350 mpi horizon low water pressure. on port side
  499. Captain Call Wires
  500. Do you really need hard anodizing in fresh water?