View Full Version : General Q & A




  1. Looking for help with one of my motors
  2. Bravo 1 upper gear set clutch timing question??
  3. oil temp pick up location
  4. Need your help! Engine bogging while accelerating
  5. What height should K planes be above the running surface. Pro and con for dif heights
  6. Offshore Mounts
  7. 07 496ho swap. Tach does not work. Need HELP!!
  8. Ball park how much does a pair of 350 hour Mercruiser 575 SCi go for?
  9. 1993 454 Magnum - Proper Engine Temp?
  10. Oil psi sender Question
  11. Exhaust Tips
  12. 1992 Fountain 32 Fever
  13. Identify these sea strainers
  14. pressure treated wood
  15. 1998 baja 272 502mpi top rpms
  16. Value of 525 log block
  17. How to cannect throttle shift cables To zero effort morse controls
  18. Hardin Marine exhaust
  19. Trouble Starting
  20. What do these tail pipes belong to?
  21. Gauge pointer oops!
  22. 2003 496 HO Fuel Pressure Issue
  23. Sea Strainers
  24. Lexan thickness
  25. 525 efi rebuild cost
  26. Batteries
  27. 496Mag pinging/detonating
  28. Carbed hp500 fuel pump
  29. Does when in forward but not reverse
  30. Anything I should do before rebuilding bw 71c 1:1 powered by 454 efi mag?
  31. Codes 42 and 43 on 502 MAG MPI. 1995 SN OF764XXX
  32. Pfm inercooler's
  33. 2006 Seadoo GTI 4-Tec
  34. Mercury Racing 600sci oil pressure problem
  35. Fuel pick-up setups
  36. TRS to Bravo Flywheel help
  37. 2004 Merc 575 warning siren won't go away
  38. lowrance 3500 depth finder?
  39. 502 MPI 415 HP cam upgrade
  40. Mercury 525efi wont rev over 4000rpm
  41. 502 MPI stumbles/dies at idle
  42. Pair of 500 hour 1999 502's needing(i think) new manifolds
  43. Timing On 1996 350 MAG GEN+ 300HP
  44. Dominator old vs new
  45. Jetting, Power Valves, AFRs --------
  46. Engine Sound "management"
  47. Dash Switches Replacement
  48. Dominator Carb tuning
  49. rapidly fluctuating temp gauge - SBC
  50. What is a good GPS app for my Android?
  51. Mercruiser 496 HO Alarm beep
  52. 350 MAG upgrade
  53. USCG - friendly fuel pump setups--- EFI into carbed boat
  54. Volvo penta 4.3 gxi
  55. Honest Motor Rebuilders
  56. tether clip, where do you get these?
  57. Plug question on 906/062 SB Vortex heads
  58. 5.7 Tuning Help!
  59. Hp 500 EFI Timeing How Much Is To Much?
  60. 525 SC spark issues
  61. Maiden voyage.
  62. Better cam
  63. Rough HP / Torque Estimate?
  64. '96 Mercruiser 7.4 LX (FI) Water Pressure Gauge, Info. Request
  65. 871 blower rebuilt spec
  66. cougar mtr 27 1988
  67. Mercruiser 502 mpi mag rich idle low vacuum new rebuild
  68. Liquid speedometer
  69. What kind of exhaust do I have, and what are options for silencers?
  70. Do all 496's have water pressure sensors ?
  71. Drives not even height, bravo 1 adjustment
  72. Need help...engine hesitation while accelerating
  73. New 502 engine shuts off in Base Timing Mode
  74. overdriven vs underdriven blower jetting
  75. Mounting remote PS reservoir
  76. Head gasket?
  77. 2 beeps every 2 minutes on Mercruiser 5.7 mag
  78. oil thermostat opening temperature is appropriate?
  79. Ignition Boxes
  80. Procharger problems
  81. 496HO Double Beep Alarm
  82. 525 EFI rebuild
  83. 525 efi bore
  84. Help finding a used Thunderbolt IV V8 V24 module and wire harnes.
  85. Is my 500 efi done for the year? Got hot and now hard to start.
  86. 5.7 spark plug recommendations
  87. Michigan wheel ballistic xhs 4 blade any good?
  88. Looking for help on my 502
  89. Painting or protecting Mercruiser Gil risers
  90. 454 fresh water cooling
  91. Rock inside the lower ?
  92. Water pressure dumps location in plumbing
  93. 600sci/700sci Crank Position Sensor Code
  94. -2 Sports Master Lower with 1.36 gear ratio
  95. Timing settings
  96. bad motor?
  97. Pachanga 22 exhaust question
  98. Pachanga 22 exhaust question
  99. Anyone ever heard of an omega
  100. TRS Mercury-Mercruiser 62782A4 UNIVERSAL JOINT
  101. 850 sci - 1075 sci cam specs
  102. Water circulation with stainless marine manifolds
  103. Water in LH bank/manifod from no flapper, what to check?
  104. procharger vs tbs250
  105. Milky oil
  106. Another day of great fun... maybe not so much. WTH?!
  107. starter fuse
  108. MSD distributor
  109. Pachanga 22 Build.. Help?!
  110. Audio warning system
  111. Using Thunderbolt V with 502 Gen 6 and Procharger M1-SC in the Land Down Under
  112. Any diagrams around on how the water plumbing goes for the engine and chiller?
  113. Where can I find this plastic fitting that goes in valve cover to flame arrestor.
  114. bad 525 EFI heat exchanger ?
  115. Engine Rebuild -- What's Actually Involved
  116. What fuel line can I use?
  117. Oil Temps
  118. anyone ever have a sound like this ?
  119. weighed the boat today
  120. Engines shut down at 4300-4500 rpm
  121. Blown coupler or spun hub .... Before I bring to the shop
  122. Jetting question. Primaries larger than secondaries
  123. Thunderbolt 5 replacement - MSD ?
  124. Repair bad ECU V6 MPI PCM 555
  125. Taylor Made Fenders/Bouy Warranty
  126. PCV Hose question
  127. Where's the best place to buy SB Vortex 906 heads?
  128. Dart or Chevrolet Performance??
  129. I need a IAC part number
  130. I have a merc 525 engine miss at 4800
  131. water pressure drop with rpm increase?
  132. HOLLEY EFI - THIS is real wierd
  133. Engine OIl Prelube Plumbing
  134. Hydraulic Roller Lifter Lash Settings with Shaft Mount Mockers?
  135. Fume sensor possible error
  136. Merc 496 Electrical Issue - Ignition
  137. 454 Mag Leak/Compression numbers
  138. Thread lubricant, sealents and gasket tack for upper end assembly
  139. machine marine steering ram disassembly
  140. Valve "stuck" in 525
  141. are top mount starter flywheels different
  142. 2000 Fountain Fever Bilge pump
  143. 871 rear bearing plate sealant
  144. High Oil Temp - Chasing a ghost/sender?
  145. Titanium Intake valves $$$$
  146. MLS Headgasket measurement VS Bore size and availability
  147. mercruiser computer reprogram
  148. Looking for more horsepower input
  149. Another 525 water pressure question
  150. Blew a trs today
  151. Rattle from back of motor????
  152. Was having a good day until...
  153. Do tall decks have raised Camshafts?
  154. 525 header getting hot
  155. Intake air temperatures with blowers.
  156. Thermostats in a blown application?
  157. procharger innercooler problems
  158. Off the shelf Cam- Dyno results
  159. Will Ported 308 Dart Iron Eagles work on a 565CI or even 582Ci motor?
  160. Testing fuel tank
  161. Will Ported 308 Iron Eagle Dart heads work on a 565?
  162. Bravo x to Bravo XR exchange?
  163. Help with trim tab installation (correct angle)
  164. Need prop selection HELP 99 Python.
  165. mercruiser power steering issue bravo
  166. Identifying a cam
  167. Electrical help!
  168. Bleeding Air from my hydraulic steering
  169. TPS Voltage for idle on a 525 efi?
  170. Sierra oilpan?
  171. Let's talk ignition
  172. new to owning a boat got a boat that needs love coming
  173. NA 555 build CR
  174. 496 starter bolts?
  175. clearence issues with 20.5 sport skier 496 need help
  176. Trim tab angle question (how high is high enough?)
  177. Water pressure issues!
  178. Boat stalls out around 3000 Rpm
  179. HELP! 87 wellcraft nova wiring schematic needed
  180. sierra extreme lower shift cable - know issues? mine broke
  181. Trim solenoid question????
  182. Jesel Belt Drive, Crank turns Cam and Belt Stationary
  183. 502 Dead Stalls above 2400 RPM - Need Help!
  184. Jesel cam belt drive in a marine/endurance application.
  185. 2005 525 starting issue
  186. Strange drive noise
  187. Holley 800 DP running rich at idle - causes?
  188. Which one?
  189. Proper cam choice. What does it mean?
  190. Spark plug gap confusion, 502MPI
  191. 575SCi
  192. Has anyone used Ethanol Shield?
  193. Add on steering issue. Please help!
  194. Have I been Hoodwinked?
  195. Need Help with Location of Thermostats in 500 EFI
  196. Lazy RPM on 396 stroker chevy
  197. carpet
  198. Trim pump fluid?
  199. looking for piece that goes on back of m3 procharger
  200. 496 ho surging/rough idle
  201. need mechanic, cape canaveral area
  202. 1997 2.5 260 EFI idle and start issues
  203. Filling gear lube reservoir
  204. Brand new quick fuel carbs engines won't run
  205. Need help identifying a motor - 572 or 454?
  206. clear (dry or glazed) plug fouling??? Stumped....
  207. Steering cable and helm upgrade, has anyone used the HPS or EXTREME (seestar teleflex
  208. What are symtoms of power steering pump going and/or not working well??
  209. Mysterious oil leak. Gen VI 502 crate motor
  210. West Coast Offshore - Anyone know anything about them?
  211. Any speedo tube fixes
  212. Bravo Rattle - Alignment Woes
  213. 502 injectors
  214. Stainless marine Water pressure test pressure?! Help!!'
  215. Installing a dual relay assembly to speed up my actuator (confused on switch wiring)
  216. 500 efi noise re-visited
  217. Is there a special alignment tool for this coupler?
  218. Working on solving water pressure problem
  219. Ignition issues 420 merc
  220. How do you stop reversion?
  221. 3k RPM+ Bogging Issue '96 7.4LX MPI
  222. Stanless Steel Welding- in Northern Indiana
  223. 2007 Suzuki DF250 milkshake
  224. Comp Cams - Issues with rocker arms, premature failure.
  225. smoking gun clear youre messages
  226. Question on aftermarket exhaust and risers
  227. 525 upgrade question
  228. Exhaust water flow question?
  229. water pressure problem
  230. any jet ski tech's here
  231. sunpad hinge
  232. 496 manifolds on a carbed 454
  233. New Gen 7 540 forged shortblock offering!
  234. Drones in Zaks bay NY
  235. NGK 5673-7 or -8?
  236. 496 HO coolant?
  237. O2 sensors dead after short use???
  238. Dual helm steering problems
  239. Fuel presure on 496 ho
  240. Drive wouldnt lower or raise
  241. Aeromotive Fuel Pump - Losing pressure
  242. Performance problems
  243. 496 HO won't run above 4100 rpm
  244. Need Starter Advise gm572
  245. 500 efi will not rev beyond 4300 rpm
  246. 575sci running rough
  247. Another 496 alarm thread!!!!!
  248. Whipped charger
  249. Marine grade wiring?
  250. taking mild thunders advice
  251. rotella oil
  252. water pressure too high
  253. 496 Mag HO WInterization Questions
  254. Alarm wont stop sounding ? Any ideas why ?
  255. What are my cam specs?
  256. Another Reversion issue with Gil Risers
  257. Convert 496 H.O. Mercruiser to MAG
  258. 500EFI starts to fall flat after 2500rpm -Anybody?
  259. Oil change with oil cooler under motor
  260. $200 Mechanical survey saved me 15k!
  261. 496 fuel injector problem
  262. shift cable end
  263. Help with Corsa Exhausf Baffles!
  264. New hydraulic steering install hooking up rams
  265. Bleeding hydraulic steering
  266. 383 Small block with EMI Thunder and +3" stainless risers, Cooling water flow
  267. New Hydraulic Steering Install - No Pressure and Other Rigging Questions
  268. 525EFI question
  269. Hydraulic steering return line
  270. First time poster with possible spun hub
  271. What are these?
  272. Filling Outdrive with Gear Oil using pressure?
  273. DUI Timing adjustment help..... and MSD parts interchangeable?
  274. A couple 575 sci questions
  275. Carb size
  276. is this a good cam/set up for my 454?
  277. Crane 741 in a 500 efi
  278. Camshaft
  279. engines guys chine in please
  280. Gaffrig GPS Speedometer
  281. Smart Guys - how about a 500HP budget recipe?
  282. 496 Mag Heat Exchanger
  283. Kodiak big block exhaust manifolds any good?
  284. Hydraulic steering set up..
  285. IMCO Fuel Valve/Tank Selector Problems
  286. exhaust elbow tube extensions - slash cut questions
  287. Will this boat have water reversion issues?
  288. Best source for SS Rub Rail?
  289. Performance distributors Ignition timing
  290. zero effort control parts
  291. Holley EFI - global file for 598
  292. Newbie needs advice on which boat
  293. 575sci refresh
  294. Holley EFI in a boat - Doesn't Repeat
  295. 88 Baja stalls at high rpm
  296. 454 Magnum cooling issue
  297. Stbrd Motor will not crank over!
  298. some 4150/4500 dyno info
  299. would you notice 100 more ft.lb. torque
  300. Hydraulic steering Opinions and advice
  301. 500 EFI limitations?
  302. Bravo U-Joints - Older Drive
  303. Water pressure bypass
  304. 496 issue - loss of power to fuel pump?
  305. TRS anodes
  306. BBC 555 dart vs rpm intake
  307. Question for MegaSquirt users
  308. Spark plug wires
  309. 496 ho intermittent stalling above idle
  310. Need help - What head gasket for Chevy 350 bored .40 over.
  311. Easy buddies on the drive - what grease
  312. Mercruiser Aluminum 496 manifolds with out water rail worth $450?
  313. Hatch Actuator Issue
  314. Thunderbolt IV ignition problem
  315. One riser hotter topic
  316. Leaking Gil Sea Strainers
  317. Is there any fairly easy upgrades I can do to a 454 efi 385hp magnum?
  318. Who makes cast iron oval port after market heads?
  319. Livorsi Trim Question: Goes down, trailer needed for up
  320. 500 efi rebuild?
  321. 2011 verado 300 help, vibration when in drive
  322. Pertronix ignitor III ignition opinions
  323. Best Price on sbc GLM aluminum manifolds and risers
  324. Refreshed and are now ready to install
  325. 496HO Fuel Filters
  326. 500EFI Dies after 30 seconds to 3 minutes
  327. Can Oil Pressure Gauge be used as Fuel pressure Gauge?
  328. Speaker boxes
  329. MEFI 1 350 issues
  330. kiekhaefer throttle rebuild.
  331. Cherokee Power Boats (26' "Dylan")- Anyone know anything?
  332. Hydraulic Steering Fittings
  333. Will 496 mag DTS-box work with ordinary wire gas-trottle?
  334. BBC - Blue Print Blocks
  335. What are people using for under platform swim ladders?
  336. 496 ho won't start
  337. Help, mercruiser wont rev
  338. whats the best way to trim both drives with one switch?
  339. Drive trim
  340. 1 1/4 ID hose
  341. msd?
  342. Replace two handle Gaffrig control with single handle?
  343. Boat sunk, salvage
  344. EFI question - non boating
  345. What engine needs 6,000,000cfm to operate?
  346. 0-35psi or 0-60psi water pressure gauge?
  347. Fresh Water Cooling plumbing with Stainless Marine Exhaust
  348. Where can I find odd ball SS studs?
  349. Where to mount water pressure sensor on 496?
  350. Oil pressure gauge not working
  351. amazing the things you catch when you surf craigslist too much
  352. Questions about coupler/motor mounts/alignment
  353. 95 454 EFI horsepower
  354. Gauge Pressure Style Help
  355. Superchiller water flow testing
  356. Can you rebuild a HP500 power steering pump
  357. Boat cover north jersey?
  358. 88 four winns liberator bogs under throttle
  359. Internal Flappers
  360. ISO rubber feet for Fountain bench seat
  361. 500 efi vapor lock
  362. Contemplating buying formula sr1 311 as first larger performance boat.
  363. Gil Question
  364. Anybody running a LS engine with cast manifolds- need to know engine width
  365. Mercury hour logging
  366. High performance piston rings
  367. X dimension and props
  368. Replacing Impeller - Just the impeller or entire assembly?
  369. 500EFI cam, what valve springs
  370. 35 Fountain with rotten transom.
  371. 500 EFI fuel pump - intermittent problem
  372. 500 EFI valve spring replacement
  373. Mounting an Aluminum Swim Platform
  374. Merc 496HO Fuel Pump GPH?
  375. Lift install
  376. Merctrans drain plug size
  377. Engine oil dipstick options
  378. How far? Exhaust from flapper!
  379. Where to buy parts in Atlanta GA???
  380. Motor Mount Options
  381. Lower shift cable tool 91-17262
  382. K plane hose end size question
  383. port a potty / pump out conversion?
  384. QV4C Valve Lash
  385. Difference in engine voltage while running
  386. 177 blower bearing.
  387. Backfire through carb
  388. 502 MPI-- no power to cool fuel pump!!
  389. AFR Gauge question
  390. Any generac techs here ?
  391. J- bolt clamp
  392. Irridium plugs for a 502 MPI motor???????
  393. Rocker roller coversion for 502 - push rod length? - need valve train expert
  394. Need $10k in mercury parts- looking for best deal
  395. Vorec 350 rings
  396. Jetting help
  397. Valve springs, valves and push rods
  398. Fighting Reversion - We've been doing it all wrong
  399. Steel or AL flywheel, and HP coupler
  400. Stainless Marine/ Wet to Dry conversion
  401. Cross over with low temp has t stat and bypass
  402. Thunderbolt IV Problem
  403. round port or square
  404. FiTECH Fuel Injection Systems
  405. Old school throttles. HELP Please
  406. 548 compression ratio ?
  407. Engine surges when warm
  408. T-stat/ thermostat housing bypass
  409. Prop help, please
  410. Tach problems
  411. Another reversion thread.
  412. 454 mag mpi timing
  413. black smoke and dies when the secondaries open
  414. Anyone from Lake Texoma?
  415. 4150 to 4500 adapter
  416. replacing cap and rotor - ignition module ?
  417. Delco Voyager for 454 with a B&M 250?
  418. Drive shower length and cavitation.
  419. gen 6 head gasket
  420. Jabsco Pump Parts?
  421. Procharged 555 dyno results...
  422. engine gurus little help please
  423. Kiekahaefer aeromarine controls
  424. Disturbing findings flowing and testing injectors
  425. Senders
  426. Question on cams
  427. Pioneer head unit
  428. mercuiser 383 stroker header assembly any one used them?
  429. Anodes. What material do I need for freshwater ??
  430. Need 525SC clone advise
  431. 500 Bulldog rev limiter
  432. Exhaust manifolds & risers
  433. What's the original application for this filtet mount/ thermostat?
  434. Help!!!!! 280 Silencer
  435. Prop size for a 1988 baja sport 226
  436. E85 With Flex Fuel Sensor Who Is Running It?
  437. Analog Test Tach Connection On 525EFI?
  438. PCM555 ECU memory error message
  439. 1989 SeaRay Pachanga
  440. 454 compression test question
  441. 572 e85 and tbs 250 blowers
  442. Primary header tube size ?
  443. Cmi etop clearance amount???
  444. What oil you guys runnin in your blowers enines
  445. Total Weight
  446. bigger oil filter for 6.2l Merc engines
  447. Nose Cone/B1 vs Hydromotive!!??
  448. What does a 2003 6.2 Mefi Computer log?
  449. kaama boots
  450. #6 Service/Rebuild Manual
  451. Vortech V4 Supercharger set-up on a GenXI 502
  452. Help: issue with GIL manifolds hitting back of Alt - Gen 4 454
  453. 29' fountain what prop to run?
  454. How much horsepower do I have??
  455. contradicting engine specs on spark arrestors
  456. 22 scarab help
  457. Piston Selection Help! Gen VI 454
  458. Is garden hose water flow enough?
  459. Bypass in oil filter.
  460. Gas ported Pistons
  461. Excessive steam from starboard side exhaust.
  462. Mercruiser 454 riser gasket question
  463. Keep Blowing Ignition Circuit Breaker/Fuse
  464. Ilmor MV8 570
  465. Daytona crashbox change out
  466. Intake Runner volumes
  467. Problems
  468. Cmi tail issue?
  469. Where to buy gen 6 7.4L long block
  470. Kiekhafer kplane cable ends
  471. Rod bearings after 9 years
  472. TRS Gimbal Ring Question
  473. K1 tech vs molnar
  474. Mounting external steering cylinders
  475. Window Hatch 2006 Baja 35 Outlaw
  476. ITS steering cyl leak
  477. Vertglas
  478. Anybody doing remanufactured big blocks (specifically 454 Mag efi)?
  479. Bbc starter and alternater wires
  480. Merctrans shift linkage and selonoid???
  481. Water pressure too high
  482. Running "warm"
  483. What can I use?
  484. TRS - Merctrans mount bolt size?
  485. Steering wheel adapter
  486. Teagues take on 650hp
  487. Stained white gel coat
  488. Stud Girdle
  489. Merc 496 Throttle Body Cleaning
  490. Caterpillar Engine Tech
  491. 525sc carb rebuild anybody got a part number ??
  492. 350 MAG MPI swap to 383 Stroker Help
  493. cam gear oiling
  494. F.A.S.T. "Classic" grey box settings...
  495. Help cam timing chain cover- 5.7 350 mercruiser chev
  496. Spark plugs for Dart 308s
  497. will siemans deka short style injector fit mpi 502?
  498. 2nd Gen OMC King to Bravo Swap, WHEN???
  499. Rebuilding a MSD Marine Distributor to use as a Cam Position Sensor.
  500. 525EFI difference in oil pumps