View Full Version : General Q & A




  1. RH vs LH prop??
  2. 496HO missing at 3,000 rpms on take-off after warmed up
  3. High hour 496 loosing power
  4. How underrated are INBOARD engines? Twisting 5600 with the stock props 32 fever
  5. Broke starter and ring gear
  6. 496 CMI twin engine install ?s
  7. 496 Mag filling bilge with water
  8. Looking to upgrade alternator on a 496 mag
  9. 502 Idling/throttle-up Issue
  10. Teague rockers cracking has anyone seen this...
  11. Scarab overheat issue new rebuild
  12. 2007 525 efi
  13. KAMMA boots
  14. Broken Pushrod ball
  15. NXT1 Transmission problem, Advice, Service Repair Manual?
  16. Going crazy on my Mercruiser 496, need Help!
  17. Valve adjustment procedure
  18. Flywheel On 496 Stroker
  19. Wrapping my 47 Fountain? Who in Florida provides a decent wrap and how much $$?
  20. 496 Coolant in Bilge
  21. Shop crane help
  22. starboard runing cold!
  23. need cam expert help
  24. Baja not charging acting funny!!!! Quick question think I fixed want thoughts
  25. Broken Pushrod
  26. upgrading cam on 454 mag crossram efi
  27. 496HO issues, help and feedback needed!
  28. Has anyone used AUTOTEC pistons?
  29. Teage Marine Camshafts
  30. Electrical Question for Wellcraft NOVA III
  31. Cam advise
  32. Goto guy for tuffest bravos?
  33. 500efi problem
  34. Power Steering Pump Issue
  35. Gen v 7.4 belt diagram
  36. Mod my 420 intakes or buy 8:71's??
  37. Too much water pressure
  38. Header Temps ?
  39. 502 Mag cooling system problem
  40. Lost forward/ reverse. Help!!!!
  41. Mild 350 cams
  42. tranny making grinding noise
  43. Need add on steering help ASAP so I can boat tomorrow
  44. Any dyno in central Pa./ ne Maryland
  45. Port engine still weak, advice needed. 2005 496 ho's
  46. Grease points on Bravo?
  47. Whats up with Revolution Marine?
  48. Mirage 202 with a 492?
  49. 496 ho question
  50. Stock 525sc's
  51. Steering
  52. 502 MPI Nightmare!!!
  53. I am thinking about freshening my blown 454 mags after the season
  54. 496 seawater pump
  55. Any pointers for rebuilding Borg Warner 72c transmissions?
  56. thunderbolt ignition
  57. Engines won't turn more than 4200 RPM
  58. Name this part off of BBC whipple charged engine
  59. Mercruiser 454 MAG MPI weak!! help!
  60. 454 mag carbed timing??
  61. dominator carb question
  62. High idle trouble. Lookin for help
  63. Engine Stalling Issue
  64. Mercury Racing Motor Mounts
  65. 525 sc what lifters to use non roller
  66. Words to the wise from the not so wise regarding ignition pickup module or icm...
  67. Best Gen. For a 496 Stroker Gen 4 or Gen 6
  68. 7.4 mpi 2000 model had gaskets replaced the price good???
  69. Need Part Numbers for Gen V/VI 454 flywheel - cast crank versus forged
  70. 385HP 454 Rod knock
  71. 496 stroker jetting questions
  72. NMEA 2000 actuators?
  73. Figured out rpm surge but need some advice
  74. Can someone please tell me what boat this is?
  75. what is this amplifier/rectifier looking thing?
  76. 525efi 600sci and 700sci Heads... are they all the same???
  77. Snap on timing gun on 502 mag??
  78. Fuel pump fitting size 525sc
  79. 454 to 502 engine swap reused TB5 from 454 and im having ignition problems...i think
  80. problem with dual ram tab
  81. Merc 525 header bolt torque??
  82. BBC 540 performance upgrade ?'s
  83. Gaffrig Tachs/Smartcraft acting up
  84. Mechanical fuel pump on a fuel injected 454ci?
  85. ecm relocation
  86. 496 Oil Cooler, where to buy!
  87. Whipple VS Procharger
  88. Is GM Vortec 454 essentially the same thing as the 300-HP L29 7.4L?
  89. I.T.S. and imco stand off boxs question
  90. optima batterys
  91. How easy to go dual hydraulic steering from single?
  92. Bimini top suggestions
  93. Mercury 800 SC's has no boost,Why?
  94. Through hull water pickup help
  95. AFR 290 VS DART Pro 1 head
  96. Ridiculous marine pricing on IAC valve
  97. Stock valve covers with AFR heads and full roller rockers
  98. Mr Gadgets, Dick tryce
  99. Reistering boat with USCG (In Illinois)
  100. leaking imco risers
  101. what should the sea water pump pressure sensor read on a 496
  102. Gen VI oil pressure reliefs/bypass
  103. Exhaust leak
  104. tailpipe wall thickness?
  105. Wet Exhaust/Steam
  106. 502 mag dumping fuel out exhaust..
  107. Towing 11,500 LB Donzi FL to MI - Tips
  108. 502 MPI engine stalling
  109. Bravo XR Trim Indicator Help Needed
  110. buttons for the out drive trim
  111. 496 fault codes help
  112. Corsa captains call power question
  113. 496 mag, double beep alarm every 60 seconds. Code 37 sea pump pressure low.
  114. Drive showers
  115. Want to put in a electric fuel pump..have questions..
  116. steering ram leaking
  117. 300vx flush kit
  118. header fitment
  119. Water leaking from exhaust y-pipe coupler?
  120. What not to do with exhaust.
  121. Need help! Raw sea water pump
  122. presssure testing exhaust ?
  123. sealer for cockpit floor ?
  124. Correct values map sensor 496 ho ?
  125. Mercruiser 496 MPI running borderline hot....
  126. Exhaust manifold and risers ok? 454 MAG MPI's
  127. Water pressure gage input
  128. 1999 502 Mag Stumble and Back Fire After Long Run Time
  129. SAT Radio Antenna Wire Question
  130. Chris Craft Cooling
  131. Repairing Gimbal Rings
  132. exhaust temperature on 525
  133. circulating pump
  134. Saltwater Flushing
  135. Procharging 454mags ??
  136. Alternatives to Procharger intercooler
  137. Boat not sitting on all trailer bunks?
  138. Old School 425 hp Coupler Question
  139. 350 Mag cooling issues HELP
  140. What fluid for trim?
  141. Please help with spark plug question on 572's
  142. Would like some input from the pro's on Carb jetting for 489 with AFR's
  143. Wiring diagram for starter lugs and slave solenoid?
  144. 350 SBC Carb Size questions
  145. 496 HO intermittently not starting back up after running it.
  146. 502EFI excessive advance
  147. Coolant temp sensor question?
  148. 496 ho bottem end strength
  149. How can you tell the diff in a bravo and an XR bravo ?
  150. IMCO Hydraulic Steering Bushings
  151. 454 carb thunderbolt IV... timing all over??
  152. 454 7.4 mpi sea pump picture what do you think???
  153. Northstar muffler rebuild kits
  154. new baja owner, blown motor , need advice please.
  155. CMI E-Top Install on 496 Mag
  156. Cuting off problem
  157. MSD ready to run distributrs? good or bad???
  158. 496 w/Whipple rebuild specs & clearances
  159. 525 help
  160. Planning to repower my 292 Fastech
  161. 454 mag mpi inboard stalling when put in neutral intermittently
  162. Stainless Marine Exh Manifolds, will they work with 700 hp engine build?
  163. Water pressure at idle?
  164. Cavitation & Overheating - Possibly related ?
  165. K Plane Parts
  166. 454 7.4 mpi l VI sea pump back flush question and help please
  167. 502 mag lack of power
  168. 525's Running Hot
  169. Has anyone seen Jerry Haney lately? Having trouble getting ahold of him.
  170. 525efi high idle after wot blasts
  171. Carb help
  172. Boat leans to port side when running..
  173. Gauges pegged?
  174. Broken sterndrive continuity screw.
  175. Strainers Leak - How to fix? (how to seal)
  176. New Add-on hydraulic steering issue
  177. Carb and 250 Blower VS Fuel Injection and Procharger
  178. merc raw water pump, 350 v8 engine driven. Water head height?
  179. 454 mpi merc oil cleaner when doing oil change??
  180. CMI E-Tops
  181. Kenwood Wired Remote Installation
  182. Need help figuring out intermittent starter issue after engine swap
  183. Possibly Selling The Boat ???'s
  184. Raptor performance & replacement engines
  185. 454 base timing
  186. Question on books for SBC marine builds
  187. Engine harness complete??
  188. Exhaust / cam question
  189. Tach flickering key on not running.... 454 carb
  190. Another Help on Cam Choice Thread
  191. Hotspots on engine
  192. Running hot vs cold plug under boost?
  193. Basset Header ?
  194. HELP! Questions on which Thermostat housing to use with EMI exhaust?
  195. Steering Issue on Checkmate 253
  196. What boat is this?
  197. ZZ502 few questions???
  198. KE 2 piece valve covers LEAK!
  199. imco powerflow exhaust revrsion
  200. Loose steering on a Formula
  201. Bent/broke push rod or broken valve spring or??? also carb issue stock 454
  202. Engine bogging after jumping waves
  203. need pro carb setting info
  204. 496 ho IAC problems what now?
  205. Who's running fuel press regulators with carbs?
  206. potential dangerous issue / fuel tank snding unit
  207. Oil and Water leaking on 496 MAG?
  208. 496HO missing at high RPM
  209. timing chain?
  210. What would cause my hydro lock???
  211. Solid roller lash check
  212. sea water pump hose connection
  213. Changing Supercharger Oil
  214. 2005 496HO MAX 4000 RPMs
  215. Adding a fuel press regulator
  216. Water Pressure/525 EFI with a Whipple
  217. Want to add an Hour Meter
  218. Marine Upholstery
  219. HP500 Small Gear Reduction Starters
  220. 1991 eliminator daytona fells like i am draging something at low speeds
  221. Wierd ignition issue....454 Thunderbolt IV
  222. 1995 502 will not go above 1800 rpms
  223. Power steering Hose thread dimensions
  224. Prop blowing out!
  225. fountain 10 meter oil temp please help
  226. Suction From Fuel Water Separating Filter
  227. New XR drives lower water pickups plugged with paint?
  228. Kill laynard....
  229. replaced engine now Alternator wont charge
  230. Any tips on removeing water from oil?
  231. Bravo XR props haft
  232. Fuel Rail?
  233. Gimbal bearing driver Alpha 1
  234. IAC for Whipple 2.3
  235. comparison, Eliminator vs Bryant
  236. Pistons.......... Not even JE can help.
  237. What is this hose that broke off my Bravo 1 gimbal? (pic)
  238. prop / engine question
  239. Elec and mechanical fuel pumps
  240. Stock Weber Carb changes for Engine upgrades ?
  241. ME3 alarm sensors broken
  242. Exhaust riser gasket
  243. Boat performance changes?!
  244. 496 ho with boost? reliable?
  245. Difference in HP500 Ignition Modules by year...???
  246. Muffler Recommendations
  247. ProCharged 502 Checkmate Prop
  248. Add on hydraulic steering issue
  249. no spark
  250. Oil Pick Up Part # for 454 gen IV mag (have the melling oil pump already) Thx
  251. Whats the deal who is who..?
  252. nos on a boat?
  253. Canton offshore pan, what's the bracket for?
  254. k planes and hyd. steering
  255. help with deciding on a new boat
  256. Thinking of making the bulkhead between the cockpit and the engines removable....
  257. transom u bolts
  258. Better to make more power from 3K - 5K, or 4K - 5500?
  259. Engine harness adapter 10-14pin
  260. Starter bolt holes
  261. I need some prop advice after doubleing horse power.
  262. Part identification
  263. 496 won't start
  264. Top mounting starter for a bravo one?
  265. 502 MAG MPI lacking power
  266. Transducer question
  267. Formula 302 LS Repower Questions
  268. B&m 250 efi mercruiser supercharger no power/limp mode?
  269. What sealing procedure to use for ARP head studs in water jackets?
  270. Starter solenoid
  271. Bad Lifter?
  272. livorsi gps speedo ?
  273. 496 ho sea pump
  274. Fuel pressure sensors
  275. Dry exhaust
  276. Torque spec for Gen VI oil filter adapter?
  277. Merc trim Tab Ram removal.
  278. hydraulic lines
  279. High oil temperature ?
  280. Who has red underwater LEDs and / or red LED interior lights?
  281. Water temp issue (help)
  282. Valvetrain noise in new engines
  283. How to tell what cam and lifters are in my 502
  284. starter bolt torque
  285. Cool Fuel consumption ap for Mercury engines
  286. New engine disaster need engine guru help!
  287. XR DWP vs LWP
  288. Looking for advice on 454 or 502
  289. motor knocking after tune up
  290. Remove baffles fromthru hull
  291. OK...i got shocked by my throttles today.....HELP!!
  292. Adding Silent Choice
  293. SS Bow Protector
  294. 454 mag mpi blew out spark plug and now has top end taping!!
  295. mercruiser engine alarm buzzer
  296. Need Help, Electrical mystery.
  297. Blower carbs???
  298. carb jeting question
  299. 502 Dies
  300. Octane questions
  301. Mercruiser 496 plug wires???
  302. Quick 383 build question
  303. Anybody tried to drill and tap brass inserts?
  304. TRS Anodes
  305. 2000 Formula Fastech Blows shore GFI when main boat AC breaker is flipped on - HELP!
  306. Question on Bravo lower
  307. Anyone have a pic of a merc throttle cable converted to a work on a Holley carb?
  308. Aluminum 496 manifolds - bolt hardware
  309. Best prop for carrying loads?
  310. Remote power steering reservoir pump cap for old style pump?
  311. Engine Help
  312. trying to understand what exhaust is needed and why
  313. Tach jumps all over
  314. CNY Repair Shops??
  315. We need a after market performance engine section.
  316. 0 oil pressure
  317. Water Pressure/Volume Problem.. .Help
  318. Good cleaner and protector ?
  319. DId I do something wrong?
  320. GAffrig gauge senders?
  321. looking for a 502 mag. short block or long block
  322. Bravo One Lower Unit question
  323. Best top mount starter
  324. No Power to dash or engine
  325. Boat dies when put into gear... Need help!
  326. Air /fuel ratio in super charged 540
  327. WTF is wrong that I cant post
  328. What's up with DONZIDICECT.COM??
  329. Boat engine hatch stitching coming apart
  330. 1999 502 Mag Runs at 100* Need some help...
  331. new blower motor shuts off after being run at speed
  332. Corsa Switchable opeation
  333. Volvo Dual Prop Alignment
  334. hydraulic engine hatch lift cylinder question
  335. gen VI oil filter sandwich adapter
  336. Anyone ever had a crack or weap hole in a new set of World iron heads?
  337. Water in #7? and milky oil. Need Ideas
  338. edelbrock victor jr heads leaking water
  339. Rollmaster gen 6 timing set no fit??
  340. DIACOM Marine question
  341. Name that failure!
  342. Water in merc trans ( trs drive)
  343. Trash In Fuel Filter? Areomotive Pukeing? or
  344. Valvoline Vr1 racing oil
  345. Hardin Marine Fuel Sender
  346. Beeping from boat
  347. IMCO hydraulic steering fluid?
  348. What exhaust gasket for AFR heads?
  349. Fresh 454 engine build which carb should I run?
  350. red w purple stripe or red w/black stripe
  351. 1999 Volvo Penta SBC won't start...weak spark?
  352. Swapping out my quadrajet for a holley 4160 or 4150 carb ''CARB GUYS COME ON IN''
  353. Oil temp, oil coolers, water temp and pressure advice.
  354. Blow Through Carburetors
  355. Motor back in and rear main leak !
  356. no power tomain red wire, or starter . help me please.
  357. Looking For Oil recomendation
  358. Motor Tight
  359. Rebuilding my 99 Baja 502 Mag MPI
  360. Alarm sounding, 502 MAG MPI....
  361. Where is my oil hideing?
  362. Blower Motor seems fuel starved
  363. Head gaskets
  364. Fastest Single engine V
  365. 525's Running Hot
  366. Does My Oil Filter On My 496 HO Mags Have An Anti-Drain Back Valve?
  367. fuel tank sending unit depth
  368. Transmission Cooler sizing BW 72C
  369. ARP Stainless exhaust bolts - 496 exhaust manifolds ?
  370. CMI Rep
  371. eddie marine??????
  372. Lost oil pressure and then a broken starter bolt
  373. 496 low end knock / rattle - need help
  374. Oildyne trim pump replacement motor?
  375. 575sci.... Fresh water cooling...... Anyone ?
  376. Push-On hose for fuel plumbing?
  377. power trim guage
  378. 496 HO PCM Re-Flash
  379. 26 corsa
  380. spark plug heat range selection
  381. Quicksilver mirage prop question
  382. Stainless steel Sea Pump
  383. low WOT on mercruiser 5.7 with 19p prop
  384. Issues after 502 Mag MPI swap in my 2000 Baja 272
  385. 93 502 mag power steering cooler
  386. Import a boat from Canada to the US
  387. fuel flow issues
  388. Should I change my oil?
  389. Mobil 1 V-Twin 20-50 Full Synthetic Oil
  390. Who does Vinyl Wrap ?
  391. relocating exhaust tips/header change
  392. Insurance Company Denies Claim - HELP!!
  393. Will these Corsa muffled tips create too much back pressure?
  394. New 502 block bore
  395. Blow through carb vers regular?
  396. Building my first boat engine.
  397. running boat without water for cooling? How long?
  398. 496 supercharged - oil type?
  399. oil thermostat housing and cooler priming
  400. Another Cam and reversion ? but also risers and exhaust ?
  401. Fountain K Plane Trim Solenoids
  402. Water reversion camshaft question
  403. Exhaust Valve Guide Clearance
  404. 415 hp 502 efi engine temp
  405. water jacket sealant
  406. Big block Chevy 454 Gen V cutawy drawing
  407. U-joint froze on my TRS. What part number to replace it?
  408. How to remove exhaust hose?
  409. Is it worth putting coolant hoses back to front on a 4 corner intake manifold
  410. Bravo 1 upper/lower compatibility
  411. Help with ?'s
  412. Gimbal boot ring
  413. power steering actuator and high pressure line
  414. Smartcraft System View Race Edition Help
  415. 500efi, exhaust question
  416. whipple 525 ecm flash
  417. Help with HTM
  418. drive fluid in bilge
  419. Ready to run distributors
  420. Play in Steering Wheel
  421. Switching from carb to 525's.questions?
  422. Carb box procharger
  423. Is it worth adding a PCV like on the HP500's?
  424. Will 454 risers bolt up to the 496 aluminum manifolds?
  425. wire color identification
  426. Bravo 1 gear lube capacity.
  427. Gaffrig Digital GPS speedo
  428. Carb needle material?
  429. mr gasket
  430. Is this a Bravo Drive?
  431. More Useful Information
  432. Any one know this boat?
  433. oil temp sender
  434. Dry exhaust flaps??
  435. Mr. Gasket
  436. 1988 Mark IV 454 Mag--500 rpm loss but its random
  437. Edelbrock Performer RPM Intake Manifold vs GM 6269318 marine intake
  438. Gen six 502 casting numbers
  439. do i need a 496 y pipe
  440. Where to buy neutral safety switch
  441. Lets talk mechanical fuel pumps
  442. Water pressure..draw off location?
  443. Exhaust question
  444. intake gasket
  445. where i can get this battery hold down bolt?
  446. MerCruiser 502 Mag MPI wont shut off....
  447. Help, Starter Issue
  448. idle is up at 2000 help
  449. Hydraulic Steering installation advice needed
  450. Fuel Return
  451. Stock 502 carb questions
  452. intake gasket
  453. 525 question
  454. Can anyone identify this fuel pump?
  455. External Steering
  456. Audio: Feedback through Amplifier with Trim
  457. Buzzing Electric Fule Pump
  458. 320EFI timing mode. HELP!
  459. VST tank vent. Will this work? pics
  460. port tab wont go down..
  461. To bypass or not to bypass...
  462. help with cam shaft 454
  463. Gen V Big block oil cooler help
  464. Broken 454, options?
  465. new help intake and carb setup
  466. Trim switch not working
  467. sea pump hose size
  468. gear lube
  469. Distributor not dropping down
  470. 525 efi power sterring pump
  471. Where can I get hatch mirrors
  472. Moving Fuel Filter
  473. Oil Pump shaft length?
  474. drive alignment questions
  475. Mercury Side Mount Control - Trailer Button
  476. driving a boat question
  477. drive indicator
  478. engine i.d. 454
  479. Hyd steering install help
  480. put in new motor, mounts not lining up
  481. 496HO 2003/ forged internals???
  482. Oil Press and VM Gauge
  483. Speedometer Hose Blew Off Thought Boat Was Sinking!!!
  484. Alarm Advise - for driveway, traveling by road & anchoring - need advise
  485. Looking for TRS Bellow part numbers 60932A4 or 54406A 1
  486. Dipstick tube extend to bottom of pan? Merc 420's
  487. 502 mpi running on 4 cylinders
  488. 500efi mysterious plug..?
  489. Can this distributor & coil be used on a carbed engine?
  490. Hyd. steering question? Need some help guys.
  491. HP 500 Bulldog
  492. So how many batteries can you safely charge??
  493. what oil in a whipple
  494. Erratic Vaccuum readings
  495. HP500 Cylinder Head Bolt Torque Spec
  496. More 575sci build questions
  497. Dual cable steering on 98 25' Outlaw
  498. Engine alignment needed?
  499. distributor
  500. Strange "dotted" pattern on valve seats and faces