View Full Version : General Q & A




  1. power trim guage
  2. 496 HO PCM Re-Flash
  3. 26 corsa
  4. spark plug heat range selection
  5. Quicksilver mirage prop question
  6. Stainless steel Sea Pump
  7. low WOT on mercruiser 5.7 with 19p prop
  8. Issues after 502 Mag MPI swap in my 2000 Baja 272
  9. 93 502 mag power steering cooler
  10. Import a boat from Canada to the US
  11. fuel flow issues
  12. Should I change my oil?
  13. Mobil 1 V-Twin 20-50 Full Synthetic Oil
  14. Who does Vinyl Wrap ?
  15. relocating exhaust tips/header change
  16. Insurance Company Denies Claim - HELP!!
  17. Will these Corsa muffled tips create too much back pressure?
  18. New 502 block bore
  19. Blow through carb vers regular?
  20. Building my first boat engine.
  21. running boat without water for cooling? How long?
  22. 496 supercharged - oil type?
  23. oil thermostat housing and cooler priming
  24. Another Cam and reversion ? but also risers and exhaust ?
  25. Fountain K Plane Trim Solenoids
  26. Water reversion camshaft question
  27. Exhaust Valve Guide Clearance
  28. 415 hp 502 efi engine temp
  29. water jacket sealant
  30. Big block Chevy 454 Gen V cutawy drawing
  31. U-joint froze on my TRS. What part number to replace it?
  32. How to remove exhaust hose?
  33. Is it worth putting coolant hoses back to front on a 4 corner intake manifold
  34. Bravo 1 upper/lower compatibility
  35. Help with ?'s
  36. Gimbal boot ring
  37. power steering actuator and high pressure line
  38. Smartcraft System View Race Edition Help
  39. 500efi, exhaust question
  40. whipple 525 ecm flash
  41. Help with HTM
  42. drive fluid in bilge
  43. Ready to run distributors
  44. Play in Steering Wheel
  45. Switching from carb to 525's.questions?
  46. Carb box procharger
  47. Is it worth adding a PCV like on the HP500's?
  48. Will 454 risers bolt up to the 496 aluminum manifolds?
  49. wire color identification
  50. Bravo 1 gear lube capacity.
  51. Gaffrig Digital GPS speedo
  52. Carb needle material?
  53. mr gasket
  54. Is this a Bravo Drive?
  55. More Useful Information
  56. Any one know this boat?
  57. oil temp sender
  58. Dry exhaust flaps??
  59. Mr. Gasket
  60. 1988 Mark IV 454 Mag--500 rpm loss but its random
  61. Edelbrock Performer RPM Intake Manifold vs GM 6269318 marine intake
  62. Gen six 502 casting numbers
  63. do i need a 496 y pipe
  64. Where to buy neutral safety switch
  65. Lets talk mechanical fuel pumps
  66. Water pressure..draw off location?
  67. Exhaust question
  68. intake gasket
  69. where i can get this battery hold down bolt?
  70. MerCruiser 502 Mag MPI wont shut off....
  71. Help, Starter Issue
  72. idle is up at 2000 help
  73. Hydraulic Steering installation advice needed
  74. Fuel Return
  75. Stock 502 carb questions
  76. intake gasket
  77. 525 question
  78. Can anyone identify this fuel pump?
  79. External Steering
  80. Audio: Feedback through Amplifier with Trim
  81. Buzzing Electric Fule Pump
  82. 320EFI timing mode. HELP!
  83. VST tank vent. Will this work? pics
  84. port tab wont go down..
  85. To bypass or not to bypass...
  86. help with cam shaft 454
  87. Gen V Big block oil cooler help
  88. Broken 454, options?
  89. new help intake and carb setup
  90. Trim switch not working
  91. sea pump hose size
  92. gear lube
  93. Distributor not dropping down
  94. 525 efi power sterring pump
  95. Where can I get hatch mirrors
  96. Moving Fuel Filter
  97. Oil Pump shaft length?
  98. drive alignment questions
  99. Mercury Side Mount Control - Trailer Button
  100. driving a boat question
  101. drive indicator
  102. engine i.d. 454
  103. Hyd steering install help
  104. put in new motor, mounts not lining up
  105. 496HO 2003/ forged internals???
  106. Oil Press and VM Gauge
  107. Speedometer Hose Blew Off – Thought Boat Was Sinking!!!
  108. Alarm Advise - for driveway, traveling by road & anchoring - need advise
  109. Looking for TRS Bellow part numbers 60932A4 or 54406A 1
  110. Dipstick tube extend to bottom of pan? Merc 420's
  111. 502 mpi running on 4 cylinders
  112. 500efi mysterious plug..?
  113. Can this distributor & coil be used on a carbed engine?
  114. Hyd. steering question? Need some help guys.
  115. HP 500 Bulldog
  116. So how many batteries can you safely charge??
  117. what oil in a whipple
  118. Erratic Vaccuum readings
  119. HP500 Cylinder Head Bolt Torque Spec
  120. More 575sci build questions
  121. Dual cable steering on 98 25' Outlaw
  122. Engine alignment needed?
  123. distributor
  124. Strange "dotted" pattern on valve seats and faces
  125. transom / exhaust rubber seals?
  126. help needed identifying Scarab trim tabs
  127. upolstrey shop in NE Maryland or Central P
  128. 350 mpi horizon low water pressure. on port side
  129. Captain Call Wires
  130. Do you really need hard anodizing in fresh water?
  131. need External hydro direction?
  132. What are the Standard Specs for Hp500 Cylinder Heads
  133. need adjustable FPR on 496ho raylar103kit ?
  134. Mercury Racing QCV4 - difference in length between 700 and 1350?
  135. Rebuild number for dominator carb on 540 bulldog
  136. What to do with old gas?
  137. Transom Exhaust Rings??
  138. Hex or blade oil pump driveshaft???
  139. Looking for blower belt
  140. Hardin Marine 2 stage stainless seawater pump
  141. Another 502 mag efi not starting. Tons of tests have been preformed.injectors fried?
  142. Back from the dead - and so is my boat...
  143. flywheel question."help"
  144. chiller plumbing advice needed
  145. Oil Capacity in 7.4 Mercruiser
  146. How do I get the top off this Holley carb?
  147. torque spect
  148. Valve cover gasket number for 525efi?
  149. Winter upgrades...what has everyone else been doing? Post pics, videos, etc....
  150. Merc Trim sender/limiter wiring help
  151. Sea water flow?
  152. Eddie Marine step pads
  153. valve spring compressor
  154. "Xtreme" remote thermostat
  155. cost to rebuild 500 EFI
  156. 454 mercruiser borg warner TR2 starter issues
  157. MERC 95 350 TBI injectors not working
  158. milky oil
  159. Best sealant for through haul fittings
  160. Front Cylinders not Firing
  161. Mercruiser engine questions
  162. Crane 168731 reversion?
  163. SmartCraft SC1000 gauges
  164. hatch actuators
  165. exhaust tips
  166. Dremel, which one?
  167. OK to run head studs along with head bolts?
  168. 496 intake deposits
  169. questions about 500 EFI's
  170. Through Hull Water Pickups ?
  171. max timing on 454mag MPI's
  172. Oil pressure gauge issue
  173. Bravo 3 trim strangeness...
  174. Small block or big block 30ft range ?
  175. mayfair steering problem....new install. Help needed
  176. Need HELP with correct prop nut\kit
  177. Need help raising fuel pressure
  178. head stud nuts
  179. Power assist steering pump needed
  180. K-Plane wiring diagram
  181. Squeaky Sea pump
  182. 502 Exhaust manifold gaskets - Replace?
  183. Blue smoke at idle
  184. Black silicone exhaust hose
  185. water water water
  186. 454 MPI Fuel Pump Issues, Pump not getting power
  187. open bow cat
  188. ???Can 250 chillers be modified to work with 177???
  189. 525efi coolant reservoir cover
  190. Gimble rings
  191. Helm Pump advice for #6 drives Please
  192. Cam / Exhaust question
  193. hello newbie here with a 22' stingray
  194. what are these tank fitting?? want to add return line!
  195. Purple gauge lights or boots
  196. Ignition/Distributor upgrade? Little help...
  197. Carpet for a 24 outlaw?
  198. 72c velvet drive borg warner where to buy rebuild kit
  199. PLUG GAP....what should it be?
  200. carb to efi
  201. holley commnder 950 efi
  202. Newb here from TX!!
  203. Stuck Tailstock on Wetsump #6
  204. Drive alignment on extension box?
  205. ZZ502 pushrod question
  206. 575 rebuild
  207. turning up 600sc's
  208. Remove Bearing in XR Gears?
  209. whipple adapter plate question
  210. 502 ignition rotor
  211. new engine
  212. Can I convert my Gaffrig with 2 throttles to 3?
  213. Mobil V-Twin ZDDP level?
  214. Need x dimension on Donzi 25 zx
  215. 496 mag won't crank
  216. Bravo1 Annual Service Guide - Help
  217. Flushing oil lines... what to use?
  218. Cruisair wiring documentation??
  219. Thunderbolt 5 ignition module
  220. weiand 177 oil fill
  221. warm starting issue
  222. Second boat with corroded water inlet
  223. Pressure testing manifolds
  224. Propshaft Runout
  225. Depth Sounder ?
  226. Underwater Lights on a Hydro Hoist?
  227. Major need of help!!!
  228. Broken valve keepers - common problem
  229. 496HO TPS low range?
  230. o2 bung location
  231. Mercruiser decals
  232. Dana exhaust for 496ho
  233. exhaust valves
  234. Considering dyno-testing / procedures for marine engine?
  235. How much water is needed to cool rubber exhaust joints and internal flappers
  236. Installing manifolds and dry risers. Where to relocate shifter/remote oil filter
  237. 502 hard to start when cold
  238. What is the procedure for checking timing chain slack?
  239. Best Headers for hp gain 2006 25OL
  240. quench effect on blower motor
  241. MSD REV-Limit Modules ??
  242. CMI Etop question
  243. Too cold with crossover installed ???
  244. 496 seawater pump failure
  245. CMI Head Stud Clearance
  246. How does this go together???
  247. WOT different RPM's
  248. Eddie Marine billet sport tabs question???
  249. Merc 525EFI oil water fuel pressure sensor
  250. trim pump major leak into bilge
  251. Steering Rams Rebuild
  252. Resonators in 502 mpi exhaust
  253. Gel coat Cracking and Stringer Loose, What to do?
  254. Automatic buffer
  255. hawk 525sc sparkplugs
  256. vice marks on connecting rod cap - how big a deal is this?
  257. 741 cam question
  258. 454 Mag not starting on all cylinders.. HELP!
  259. Hydraulic steering ram install help
  260. 2 stage water pump and outdrive for innercooler
  261. when using rod bolt stretch gauge do you do one bolt at a time?
  262. 496 scan tool readings
  263. 4 wire Corsa solenoid installation
  264. pyrometer best location
  265. Whipple oil change?
  266. This is how guages are made...?
  267. what timming are you running in your blown sbc
  268. AFR meters
  269. Ring gap on a 496 -8.1L vortec engine ?
  270. Life span of an Iconel valve??
  271. 383 rotating assembly
  272. Corsa Quick and Quiet 25 Outlaw
  273. Mercruiser 420 Oils - Zinc Additive?
  274. Can Oil Cooler Leak Water into Oil?
  275. 502 refresh questions?
  276. Small Block Oil Pump
  277. 260 mercruiser
  278. imco powerflow plus exhaust
  279. 90 26ft profile offshore project need insight on it
  280. EZ OFF on imron
  281. Altenator Charging 2 in parallel? Bad?
  282. Bravo coupler help
  283. 575SCI throttle body upgrades??
  284. Computer Tech
  285. Baja hammer tach problem
  286. rub rail
  287. Engine Tuner/Builder Toronto Area
  288. Best Aluminum cylinder head SBC 383.
  289. 496 Mag HO Oil weight/power gain
  290. Any Metal Fab Guys-What small plasma cutter?
  291. Ideas for increasing power in a pair of Merc 454 L29s
  292. Painting speaker grills
  293. Hydro Hoist w 38 Fountain
  294. Non Vortec to Vortec swap.
  295. 454 cracked heads please help!
  296. O2 Sensor location
  297. How Hot is TOO Hot !
  298. Drives trim in/out in different speeds?
  299. Looking for help with exhaust system
  300. Aluminum Header fit issue
  301. fuel sending unit with duel return lines?
  302. Am I screwed?
  303. Wall cooler?
  304. need help with any info on kaama surfice drives
  305. re coloring hardware
  306. "Budget" 555 build
  307. max over bore question on 350 sbc
  308. new exhaust suggestions
  309. Battery ?????
  310. Through hull fittings
  311. Underwater LED Placement On Cats
  312. Mercury 525 EFI Adapter Harness
  313. Dart Block Bronze Lifter Bushing Bore Oil Holes Not Lined Up, Problem??
  314. Gas tank plate
  315. 1994 baja 22 Caliber
  316. Mercury / APBA valve covers on OEM steel heads & roller rockers?
  317. Corsa 4 Wire Harness - White
  318. 525sc w/ chiller belt??
  319. A little help please on 500efi heads
  320. Does oil go bad just sitting in motor?
  321. AC Delco Rapid Fire Spark Plugs
  322. K plane rocker switches
  323. vortec cam upgrade
  324. Dash Panels
  325. engine hours
  326. Trim Tab thru hull fitting where to by
  327. Better of the Two Drive Showers
  328. Valve check????
  329. hi-performance 320 EFI
  330. bronze sea pump kit part number?
  331. baja stereo help
  332. Help with corsa exhaust please!!!!
  333. Distributor gear needed with 741 cam
  334. Understanding Piston Ring Tension
  335. Gimble bearing
  336. Roller SB timing cover
  337. Merc 1075 Roller Hyd
  338. What distributor gear with 741 cam?
  339. retrofit K-planes over Bennett, etc?
  340. exhaust
  341. Inline fuel filter
  342. Fuel pressue guage idea on 454/502mag Mpi's
  343. What exactly does "Motors have been Freshened" Mean?
  344. oil filter
  345. Cam recomendations
  346. marine blower carbs
  347. rookie in need of help
  348. New member discussing helmets/head wear
  349. Swap Shop Resolution – What’s the right thing to do – Let the forum decide!
  350. Blower pulley with serpentine acc belt
  351. Trim pump fluid reservoir
  352. Rod bolt stretch specs needed
  353. Intake to Water pump bypass hose
  354. Racepak IQ3 Data System
  355. Bravo Hub
  356. Is the splash shield needed on 502 gen6????
  357. tired of the bullsh*t vapor lock!
  358. 2.3 Quad Rotor Whipple Installation Instructions
  359. Is this piston usable?
  360. 2000 7.4 mag mpi stalling only when cold start ups
  361. one wire alternator
  362. full hydraulic steering issue/new install
  363. oil cooler plumbing
  364. Question on manifolds
  365. Baseline jetting for 502 with 4/7 & 2/3 swap
  366. 502 not firing
  367. Water pick ups
  368. Trim Tab/transome sealant
  369. Need urgent help from an expert
  370. trim tab help!
  371. Behold the glory...
  372. Whipple standard vs MOAC intercooler
  373. dallas texas leak down test needed
  374. Looking for an intake air temp gauge
  375. Chris Craft 390 X Twin TRS Out drive Question
  376. Detonation Indicator?
  377. EGT vs A/F?
  378. Head gaskets
  379. Bunk Carpet
  380. What thread is a knock sensor?
  381. Oil Change in the 496HO
  382. Keith Eckhert 2 stage water/sea pump!
  383. add O2 bung in Keith Eckert aluminum headers
  384. Oil Filter
  385. Anyone have some Weiand 10 rib pulleys for dyno use only??
  386. Engine experts input needed on used engine
  387. Replacements heads for Mark IV Rectangle Ports
  388. Wiring for shorepower??
  389. Eaton pump -need spline to tapper shaft
  390. oil filter
  391. mockup engine
  392. cold water a bad idea?
  393. Gimble bearing
  394. front timing cover oil seal replacement ?
  395. Cuddy bow mount ladder
  396. Muffs ob dual water pickup bravo 1
  397. what intake and head gaskets for 500efi
  398. Any idea where TEAM THUNDER comes from?
  399. 1995 23ft wellcraft nova spyder windshield
  400. trim pump? 2 wire or 3 wire
  401. teach me about Eaton helms
  402. Holley Intake or Stock Intake
  403. Tiger head sets
  404. Engine/EFI harness -
  405. water circulation pump or regular water pump
  406. Main bearing bore variance after line hone
  407. 555 blower pistons
  408. Best Shift, Throttle, Trim Indicator Cables 2013
  409. 496 HO 425 h.p. hours
  410. B&m 250 or alum heads?
  411. Block for 383
  412. Stainless marine or emi???
  413. efi question
  414. 90 mercruiser 7.4 mags
  415. Is an Edelbrock 1410 right for me?
  416. Cooling water pressure in exhaust manifold question
  417. 500 EFI Longevity
  418. Seaquest or Nautolex Capitano vinyl
  419. teague 525 efi upgrade
  420. labbed prop on Magic Scepter 28'
  421. Inconel exhaust valves
  422. Cam choice on a 383 stroker
  423. Sea Strainers?
  424. Fly wheel housing needed
  425. 500 EFI timing
  426. Fuel system setup!!!Does this sound right??
  427. mechanical fuel pumps
  428. reverse rotation engine
  429. 700's and 700's
  430. fuel pressure sender location
  431. anyone have an '82 40' Excalibur Hawk?
  432. 700 SCI - Drive options?
  433. Are Depars mufflers any good?
  434. Dry tails done align with the transom
  435. Carb Size
  436. Steering ram mounting location
  437. WEBER carb. bowl draining
  438. key switch not cranking motor
  439. What is a safe dynamic c/r to run on 87oct
  440. passive fresh water flush for closed cooled engines?
  441. 43' Scarab Thunder
  442. Breather question for you blower guys.
  443. 496Mag, Dissapearing drive fluid
  444. How much is an mpi setup worth?
  445. Continuous duty solenoid
  446. So many pistons to choose from, Recommendations for procharged 454??
  447. Changes in fuel octane
  448. What kind of life expectancy for wet blowers???
  449. vinyl die
  450. Free Air Subs.....opionions???
  451. Low profile windshield
  452. trim and trailer switch and the trim switch on dashnot working
  453. Stereo question
  454. Has anybody ever had Red Loctite fail?
  455. What is the rpm of my supercharger with?
  456. 502 MPI Intake, POS or Can It Be Modified
  457. For those who have gone to Desert Storm
  458. Mercruiser fuel pump problems
  459. 1981 chris craft scorpion 260 as a raceboat?
  460. gen v fuel pump question
  461. Genuine Merc vs. Sierra
  462. Looking for EH brake kit
  463. 454 v 502 mag cranks, differences?
  464. Key West Poker Run 2013
  465. dyno tune close to indianapolis
  466. surface drive arnson
  467. neutral safety switch
  468. Mayfair add on steering kit
  469. 2000 502 Gen VI Issues - Fuel Injection or No Fuel Injection - Rebuild Questions
  470. trying to figure out what cam
  471. trying to figure out whay cam
  472. Anyone know what speaker size came in Baja Hammer?
  473. windless system, anchors away
  474. 225 Outboard
  475. 500efi intake on a 502mpi what is needed to make it work?
  476. vapor separator issues
  477. Lets talk about roots blowers.
  478. Scarab 22 Trim Tab Question
  479. Arias Pistons VS JE Pistons
  480. What removes carbon deposits?
  481. Water Reversion?
  482. Simple prop question???
  483. Where does everyone order their Marine perfomance parts?
  484. Is a cavation plate really needed w/ 5 or 6 blade Props?
  485. Any difference in a marine 502 gen 6 and a standard gen6 502?
  486. Gear Ratio vs acceleration/speed
  487. Which intake gasket to use?
  488. Any way to prevent corrosion on aluminum intake?
  489. Where to get corsa exhaust parts?
  490. Garmin hooked into Smartcraft?
  491. Trying Q&A looking for the A on a GIL Q
  492. belt size/length for hp500 or other bbc with larger pully setup
  493. merc 525sc engine oil bypass valve
  494. What is correct cam end play for Gen VI, and how do you set it?
  495. Donzi 26/28ZX closed cooling questions????
  496. 79 31 excalibur weight???
  497. scarab iii manuals
  498. Confused - my new oil rings are much thinner than originals
  499. Bravo XR Broken top cap stud
  500. Foil Stickers