View Full Version : General Q & A




  1. New Add-on hydraulic steering issue
  2. Carb and 250 Blower VS Fuel Injection and Procharger
  3. merc raw water pump, 350 v8 engine driven. Water head height?
  4. 454 mpi merc oil cleaner when doing oil change??
  5. CMI E-Tops
  6. Kenwood Wired Remote Installation
  7. Need help figuring out intermittent starter issue after engine swap
  8. Possibly Selling The Boat ???'s
  9. Raptor performance & replacement engines
  10. 454 base timing
  11. Question on books for SBC marine builds
  12. Engine harness complete??
  13. Exhaust / cam question
  14. Tach flickering key on not running.... 454 carb
  15. Another Help on Cam Choice Thread
  16. Hotspots on engine
  17. Running hot vs cold plug under boost?
  18. Basset Header ?
  19. HELP! Questions on which Thermostat housing to use with EMI exhaust?
  20. Steering Issue on Checkmate 253
  21. What boat is this?
  22. ZZ502 few questions???
  23. KE 2 piece valve covers LEAK!
  24. imco powerflow exhaust revrsion
  25. Loose steering on a Formula
  26. Bent/broke push rod or broken valve spring or??? also carb issue stock 454
  27. Engine bogging after jumping waves
  28. need pro carb setting info
  29. 496 ho IAC problems what now?
  30. Who's running fuel press regulators with carbs?
  31. potential dangerous issue / fuel tank snding unit
  32. Oil and Water leaking on 496 MAG?
  33. 496HO missing at high RPM
  34. timing chain?
  35. What would cause my hydro lock???
  36. Solid roller lash check
  37. sea water pump hose connection
  38. Changing Supercharger Oil
  39. 2005 496HO MAX 4000 RPMs
  40. Adding a fuel press regulator
  41. Water Pressure/525 EFI with a Whipple
  42. Want to add an Hour Meter
  43. Marine Upholstery
  44. HP500 Small Gear Reduction Starters
  45. 1991 eliminator daytona fells like i am draging something at low speeds
  46. Wierd ignition issue....454 Thunderbolt IV
  47. 1995 502 will not go above 1800 rpms
  48. Power steering Hose thread dimensions
  49. Prop blowing out!
  50. fountain 10 meter oil temp please help
  51. Suction From Fuel Water Separating Filter
  52. New XR drives lower water pickups plugged with paint?
  53. Kill laynard....
  54. replaced engine now Alternator wont charge
  55. Any tips on removeing water from oil?
  56. Bravo XR props haft
  57. Fuel Rail?
  58. Gimbal bearing driver Alpha 1
  59. IAC for Whipple 2.3
  60. comparison, Eliminator vs Bryant
  61. Pistons.......... Not even JE can help.
  62. What is this hose that broke off my Bravo 1 gimbal? (pic)
  63. prop / engine question
  64. Elec and mechanical fuel pumps
  65. Stock Weber Carb changes for Engine upgrades ?
  66. ME3 alarm sensors broken
  67. Exhaust riser gasket
  68. Boat performance changes?!
  69. 496 ho with boost? reliable?
  70. Difference in HP500 Ignition Modules by year...???
  71. Muffler Recommendations
  72. ProCharged 502 Checkmate Prop
  73. Add on hydraulic steering issue
  74. no spark
  75. Oil Pick Up Part # for 454 gen IV mag (have the melling oil pump already) Thx
  76. Whats the deal who is who..?
  77. nos on a boat?
  78. Canton offshore pan, what's the bracket for?
  79. k planes and hyd. steering
  80. help with deciding on a new boat
  81. Thinking of making the bulkhead between the cockpit and the engines removable....
  82. transom u bolts
  83. Better to make more power from 3K - 5K, or 4K - 5500?
  84. Engine harness adapter 10-14pin
  85. Starter bolt holes
  86. I need some prop advice after doubleing horse power.
  87. Part identification
  88. 496 won't start
  89. Top mounting starter for a bravo one?
  90. 502 MAG MPI lacking power
  91. Transducer question
  92. Formula 302 LS Repower Questions
  93. B&m 250 efi mercruiser supercharger no power/limp mode?
  94. What sealing procedure to use for ARP head studs in water jackets?
  95. Starter solenoid
  96. Bad Lifter?
  97. livorsi gps speedo ?
  98. 496 ho sea pump
  99. Fuel pressure sensors
  100. Dry exhaust
  101. Torque spec for Gen VI oil filter adapter?
  102. Merc trim Tab Ram removal.
  103. hydraulic lines
  104. High oil temperature ?
  105. Who has red underwater LEDs and / or red LED interior lights?
  106. Water temp issue (help)
  107. Valvetrain noise in new engines
  108. How to tell what cam and lifters are in my 502
  109. starter bolt torque
  110. Cool Fuel consumption ap for Mercury engines
  111. New engine disaster need engine guru help!
  112. XR DWP vs LWP
  113. Looking for advice on 454 or 502
  114. motor knocking after tune up
  115. Remove baffles fromthru hull
  116. OK...i got shocked by my throttles today.....HELP!!
  117. Adding Silent Choice
  118. SS Bow Protector
  119. 454 mag mpi blew out spark plug and now has top end taping!!
  120. mercruiser engine alarm buzzer
  121. Need Help, Electrical mystery.
  122. Blower carbs???
  123. carb jeting question
  124. 502 Dies
  125. Octane questions
  126. Mercruiser 496 plug wires???
  127. Quick 383 build question
  128. Anybody tried to drill and tap brass inserts?
  129. TRS Anodes
  130. 2000 Formula Fastech Blows shore GFI when main boat AC breaker is flipped on - HELP!
  131. Question on Bravo lower
  132. Anyone have a pic of a merc throttle cable converted to a work on a Holley carb?
  133. Aluminum 496 manifolds - bolt hardware
  134. Best prop for carrying loads?
  135. Remote power steering reservoir pump cap for old style pump?
  136. Engine Help
  137. trying to understand what exhaust is needed and why
  138. Tach jumps all over
  139. CNY Repair Shops??
  140. We need a after market performance engine section.
  141. 0 oil pressure
  142. Water Pressure/Volume Problem.. .Help
  143. Good cleaner and protector ?
  144. DId I do something wrong?
  145. GAffrig gauge senders?
  146. looking for a 502 mag. short block or long block
  147. Bravo One Lower Unit question
  148. Best top mount starter
  149. No Power to dash or engine
  150. Boat dies when put into gear... Need help!
  151. Air /fuel ratio in super charged 540
  152. WTF is wrong that I cant post
  153. What's up with DONZIDICECT.COM??
  154. Boat engine hatch stitching coming apart
  155. 1999 502 Mag Runs at 100* Need some help...
  156. new blower motor shuts off after being run at speed
  157. Corsa Switchable opeation
  158. Volvo Dual Prop Alignment
  159. hydraulic engine hatch lift cylinder question
  160. gen VI oil filter sandwich adapter
  161. Anyone ever had a crack or weap hole in a new set of World iron heads?
  162. Water in #7? and milky oil. Need Ideas
  163. edelbrock victor jr heads leaking water
  164. Rollmaster gen 6 timing set no fit??
  165. DIACOM Marine question
  166. Name that failure!
  167. Water in merc trans ( trs drive)
  168. Trash In Fuel Filter? Areomotive Pukeing? or
  169. Valvoline Vr1 racing oil
  170. Hardin Marine Fuel Sender
  171. Beeping from boat
  172. IMCO hydraulic steering fluid?
  173. What exhaust gasket for AFR heads?
  174. Fresh 454 engine build which carb should I run?
  175. red w purple stripe or red w/black stripe
  176. 1999 Volvo Penta SBC won't start...weak spark?
  177. Swapping out my quadrajet for a holley 4160 or 4150 carb ''CARB GUYS COME ON IN''
  178. Oil temp, oil coolers, water temp and pressure advice.
  179. Blow Through Carburetors
  180. Motor back in and rear main leak !
  181. no power tomain red wire, or starter . help me please.
  182. Looking For Oil recomendation
  183. Motor Tight
  184. Rebuilding my 99 Baja 502 Mag MPI
  185. Alarm sounding, 502 MAG MPI....
  186. Where is my oil hideing?
  187. Blower Motor seems fuel starved
  188. Head gaskets
  189. Fastest Single engine V
  190. 525's Running Hot
  191. Does My Oil Filter On My 496 HO Mags Have An Anti-Drain Back Valve?
  192. fuel tank sending unit depth
  193. Transmission Cooler sizing BW 72C
  194. ARP Stainless exhaust bolts - 496 exhaust manifolds ?
  195. CMI Rep
  196. eddie marine??????
  197. Lost oil pressure and then a broken starter bolt
  198. 496 low end knock / rattle - need help
  199. Oildyne trim pump replacement motor?
  200. 575sci.... Fresh water cooling...... Anyone ?
  201. Push-On hose for fuel plumbing?
  202. power trim guage
  203. 496 HO PCM Re-Flash
  204. 26 corsa
  205. spark plug heat range selection
  206. Quicksilver mirage prop question
  207. Stainless steel Sea Pump
  208. low WOT on mercruiser 5.7 with 19p prop
  209. Issues after 502 Mag MPI swap in my 2000 Baja 272
  210. 93 502 mag power steering cooler
  211. Import a boat from Canada to the US
  212. fuel flow issues
  213. Should I change my oil?
  214. Mobil 1 V-Twin 20-50 Full Synthetic Oil
  215. Who does Vinyl Wrap ?
  216. relocating exhaust tips/header change
  217. Insurance Company Denies Claim - HELP!!
  218. Will these Corsa muffled tips create too much back pressure?
  219. New 502 block bore
  220. Blow through carb vers regular?
  221. Building my first boat engine.
  222. running boat without water for cooling? How long?
  223. 496 supercharged - oil type?
  224. oil thermostat housing and cooler priming
  225. Another Cam and reversion ? but also risers and exhaust ?
  226. Fountain K Plane Trim Solenoids
  227. Water reversion camshaft question
  228. Exhaust Valve Guide Clearance
  229. 415 hp 502 efi engine temp
  230. water jacket sealant
  231. Big block Chevy 454 Gen V cutawy drawing
  232. U-joint froze on my TRS. What part number to replace it?
  233. How to remove exhaust hose?
  234. Is it worth putting coolant hoses back to front on a 4 corner intake manifold
  235. Bravo 1 upper/lower compatibility
  236. Help with ?'s
  237. Gimbal boot ring
  238. power steering actuator and high pressure line
  239. Smartcraft System View Race Edition Help
  240. 500efi, exhaust question
  241. whipple 525 ecm flash
  242. Help with HTM
  243. drive fluid in bilge
  244. Ready to run distributors
  245. Play in Steering Wheel
  246. Switching from carb to 525's.questions?
  247. Carb box procharger
  248. Is it worth adding a PCV like on the HP500's?
  249. Will 454 risers bolt up to the 496 aluminum manifolds?
  250. wire color identification
  251. Bravo 1 gear lube capacity.
  252. Gaffrig Digital GPS speedo
  253. Carb needle material?
  254. mr gasket
  255. Is this a Bravo Drive?
  256. More Useful Information
  257. Any one know this boat?
  258. oil temp sender
  259. Dry exhaust flaps??
  260. Mr. Gasket
  261. 1988 Mark IV 454 Mag--500 rpm loss but its random
  262. Edelbrock Performer RPM Intake Manifold vs GM 6269318 marine intake
  263. Gen six 502 casting numbers
  264. do i need a 496 y pipe
  265. Where to buy neutral safety switch
  266. Lets talk mechanical fuel pumps
  267. Water pressure..draw off location?
  268. Exhaust question
  269. intake gasket
  270. where i can get this battery hold down bolt?
  271. MerCruiser 502 Mag MPI wont shut off....
  272. Help, Starter Issue
  273. idle is up at 2000 help
  274. Hydraulic Steering installation advice needed
  275. Fuel Return
  276. Stock 502 carb questions
  277. intake gasket
  278. 525 question
  279. Can anyone identify this fuel pump?
  280. External Steering
  281. Audio: Feedback through Amplifier with Trim
  282. Buzzing Electric Fule Pump
  283. 320EFI timing mode. HELP!
  284. VST tank vent. Will this work? pics
  285. port tab wont go down..
  286. To bypass or not to bypass...
  287. help with cam shaft 454
  288. Gen V Big block oil cooler help
  289. Broken 454, options?
  290. new help intake and carb setup
  291. Trim switch not working
  292. sea pump hose size
  293. gear lube
  294. Distributor not dropping down
  295. 525 efi power sterring pump
  296. Where can I get hatch mirrors
  297. Moving Fuel Filter
  298. Oil Pump shaft length?
  299. drive alignment questions
  300. Mercury Side Mount Control - Trailer Button
  301. driving a boat question
  302. drive indicator
  303. engine i.d. 454
  304. Hyd steering install help
  305. put in new motor, mounts not lining up
  306. 496HO 2003/ forged internals???
  307. Oil Press and VM Gauge
  308. Speedometer Hose Blew Off Thought Boat Was Sinking!!!
  309. Alarm Advise - for driveway, traveling by road & anchoring - need advise
  310. Looking for TRS Bellow part numbers 60932A4 or 54406A 1
  311. Dipstick tube extend to bottom of pan? Merc 420's
  312. 502 mpi running on 4 cylinders
  313. 500efi mysterious plug..?
  314. Can this distributor & coil be used on a carbed engine?
  315. Hyd. steering question? Need some help guys.
  316. HP 500 Bulldog
  317. So how many batteries can you safely charge??
  318. what oil in a whipple
  319. Erratic Vaccuum readings
  320. HP500 Cylinder Head Bolt Torque Spec
  321. More 575sci build questions
  322. Dual cable steering on 98 25' Outlaw
  323. Engine alignment needed?
  324. distributor
  325. Strange "dotted" pattern on valve seats and faces
  326. transom / exhaust rubber seals?
  327. help needed identifying Scarab trim tabs
  328. upolstrey shop in NE Maryland or Central P
  329. 350 mpi horizon low water pressure. on port side
  330. Captain Call Wires
  331. Do you really need hard anodizing in fresh water?
  332. need External hydro direction?
  333. What are the Standard Specs for Hp500 Cylinder Heads
  334. need adjustable FPR on 496ho raylar103kit ?
  335. Mercury Racing QCV4 - difference in length between 700 and 1350?
  336. Rebuild number for dominator carb on 540 bulldog
  337. What to do with old gas?
  338. Transom Exhaust Rings??
  339. Hex or blade oil pump driveshaft???
  340. Looking for blower belt
  341. Hardin Marine 2 stage stainless seawater pump
  342. Another 502 mag efi not starting. Tons of tests have been preformed.injectors fried?
  343. Back from the dead - and so is my boat...
  344. flywheel question."help"
  345. chiller plumbing advice needed
  346. Oil Capacity in 7.4 Mercruiser
  347. How do I get the top off this Holley carb?
  348. torque spect
  349. Valve cover gasket number for 525efi?
  350. Winter upgrades...what has everyone else been doing? Post pics, videos, etc....
  351. Merc Trim sender/limiter wiring help
  352. Sea water flow?
  353. Eddie Marine step pads
  354. valve spring compressor
  355. "Xtreme" remote thermostat
  356. cost to rebuild 500 EFI
  357. 454 mercruiser borg warner TR2 starter issues
  358. MERC 95 350 TBI injectors not working
  359. milky oil
  360. Best sealant for through haul fittings
  361. Front Cylinders not Firing
  362. Mercruiser engine questions
  363. Crane 168731 reversion?
  364. SmartCraft SC1000 gauges
  365. hatch actuators
  366. exhaust tips
  367. Dremel, which one?
  368. OK to run head studs along with head bolts?
  369. 496 intake deposits
  370. questions about 500 EFI's
  371. Through Hull Water Pickups ?
  372. max timing on 454mag MPI's
  373. Oil pressure gauge issue
  374. Bravo 3 trim strangeness...
  375. Small block or big block 30ft range ?
  376. mayfair steering problem....new install. Help needed
  377. Need HELP with correct prop nut\kit
  378. Need help raising fuel pressure
  379. head stud nuts
  380. Power assist steering pump needed
  381. K-Plane wiring diagram
  382. Squeaky Sea pump
  383. 502 Exhaust manifold gaskets - Replace?
  384. Blue smoke at idle
  385. Black silicone exhaust hose
  386. water water water
  387. 454 MPI Fuel Pump Issues, Pump not getting power
  388. open bow cat
  389. ???Can 250 chillers be modified to work with 177???
  390. 525efi coolant reservoir cover
  391. Gimble rings
  392. Helm Pump advice for #6 drives Please
  393. Cam / Exhaust question
  394. hello newbie here with a 22' stingray
  395. what are these tank fitting?? want to add return line!
  396. Purple gauge lights or boots
  397. Ignition/Distributor upgrade? Little help...
  398. Carpet for a 24 outlaw?
  399. 72c velvet drive borg warner where to buy rebuild kit
  400. PLUG GAP....what should it be?
  401. carb to efi
  402. holley commnder 950 efi
  403. Newb here from TX!!
  404. Stuck Tailstock on Wetsump #6
  405. Drive alignment on extension box?
  406. ZZ502 pushrod question
  407. 575 rebuild
  408. turning up 600sc's
  409. Remove Bearing in XR Gears?
  410. whipple adapter plate question
  411. 502 ignition rotor
  412. new engine
  413. Can I convert my Gaffrig with 2 throttles to 3?
  414. Mobil V-Twin ZDDP level?
  415. Need x dimension on Donzi 25 zx
  416. 496 mag won't crank
  417. Bravo1 Annual Service Guide - Help
  418. Flushing oil lines... what to use?
  419. Cruisair wiring documentation??
  420. Thunderbolt 5 ignition module
  421. weiand 177 oil fill
  422. warm starting issue
  423. Second boat with corroded water inlet
  424. Pressure testing manifolds
  425. Propshaft Runout
  426. Depth Sounder ?
  427. Underwater Lights on a Hydro Hoist?
  428. Major need of help!!!
  429. Broken valve keepers - common problem
  430. 496HO TPS low range?
  431. o2 bung location
  432. Mercruiser decals
  433. Dana exhaust for 496ho
  434. exhaust valves
  435. Considering dyno-testing / procedures for marine engine?
  436. How much water is needed to cool rubber exhaust joints and internal flappers
  437. Installing manifolds and dry risers. Where to relocate shifter/remote oil filter
  438. 502 hard to start when cold
  439. What is the procedure for checking timing chain slack?
  440. Best Headers for hp gain 2006 25OL
  441. quench effect on blower motor
  442. MSD REV-Limit Modules ??
  443. CMI Etop question
  444. Too cold with crossover installed ???
  445. 496 seawater pump failure
  446. CMI Head Stud Clearance
  447. How does this go together???
  448. WOT different RPM's
  449. Eddie Marine billet sport tabs question???
  450. Merc 525EFI oil water fuel pressure sensor
  451. trim pump major leak into bilge
  452. Steering Rams Rebuild
  453. Resonators in 502 mpi exhaust
  454. Gel coat Cracking and Stringer Loose, What to do?
  455. Automatic buffer
  456. hawk 525sc sparkplugs
  457. vice marks on connecting rod cap - how big a deal is this?
  458. 741 cam question
  459. 454 Mag not starting on all cylinders.. HELP!
  460. Hydraulic steering ram install help
  461. 2 stage water pump and outdrive for innercooler
  462. when using rod bolt stretch gauge do you do one bolt at a time?
  463. 496 scan tool readings
  464. 4 wire Corsa solenoid installation
  465. pyrometer best location
  466. Whipple oil change?
  467. This is how guages are made...?
  468. what timming are you running in your blown sbc
  469. AFR meters
  470. Ring gap on a 496 -8.1L vortec engine ?
  471. Life span of an Iconel valve??
  472. 383 rotating assembly
  473. Corsa Quick and Quiet 25 Outlaw
  474. Mercruiser 420 Oils - Zinc Additive?
  475. Can Oil Cooler Leak Water into Oil?
  476. 502 refresh questions?
  477. Small Block Oil Pump
  478. 260 mercruiser
  479. imco powerflow plus exhaust
  480. 90 26ft profile offshore project need insight on it
  481. EZ OFF on imron
  482. Altenator Charging 2 in parallel? Bad?
  483. Bravo coupler help
  484. 575SCI throttle body upgrades??
  485. Computer Tech
  486. Baja hammer tach problem
  487. rub rail
  488. Engine Tuner/Builder Toronto Area
  489. Best Aluminum cylinder head SBC 383.
  490. 496 Mag HO Oil weight/power gain
  491. Any Metal Fab Guys-What small plasma cutter?
  492. Ideas for increasing power in a pair of Merc 454 L29s
  493. Painting speaker grills
  494. Hydro Hoist w 38 Fountain
  495. Non Vortec to Vortec swap.
  496. 454 cracked heads please help!
  497. O2 Sensor location
  498. How Hot is TOO Hot !
  499. Drives trim in/out in different speeds?
  500. Looking for help with exhaust system