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  1. alldodge

    94 mercruiser 350 low idle after thermostat change

    You need to do some testing first. Measure fuel pressure 30 psi Check for codes using a led and paper clip. With key ON and not running count flashes. The paper clip is also used to set motor in base timing mode for adjusting timing
  2. alldodge

    Site is hosed again

    Thing is all messed up, started last night, so stopped doing anything until this AM. MS Edge or Firefox on two different computers is the same mess undefined
  3. alldodge

    88 OMC 3.0L Coil issue??

    There are thousands of coil replaced every year and only maybe one or two are actually bad. Need to make up a Tee fitting between pump and carb. Can be attached at the carb to the end of the fuel line, or temp replace the whole fuel line with gas line and fittings for a connection. Use a...
  4. alldodge

    94 mercruiser 350 low idle after thermostat change

    Need a serial number to verify, you may have a MEFI 1 ECM and TBI. Could have 1 to 2 issues, fuel pressure could be down, and/or IAC might be an issue. https://www.mercruiserparts.com/350-mag-efi-ski-tbi-gm-350-v-8-1994-1-1 I would start with measuring fuel pressure. To measure pressure you'll...
  5. alldodge

    Mercruiser 4.3 2005 oil dipstick length S/N and service manual question

    You should use manual number 25, and your motor holds 4.5 quarts counting the filter, so your 1/2 quart over. Your motor can have one of 2 tubes and dipsticks, and depends on if it has open or closed cooling https://www.mercruiserparts.com/bam/subassembly/31492/11812/140
  6. alldodge

    primer solenoid wiring

    Primer solenoid should have one wire going to ground and the other going to the key switch. When the key is pushed IN, this turns power on to the solenoid and energizes. If the wire is hot all the time its miss wired or something is shorting to the hot
  7. alldodge

    4.3l 2 barrel won't stay running after new starter

    Purple on top of the starter connections don't add up, and the purple/yellow is on the left BTW, what year is the 4.3?
  8. alldodge

    5.7 timing

    How to test knock sensor on TBV
  9. alldodge

    Mercruiser 4.5 overheating

    No matter what it has reduced water flow to the starboard manifold. Only thing I can see with 4 hoses is with the open cooled system and its for draining during winterization. Where is the rear poppet valve you mentioned? My thought is the check valve on the SB side got stuck and now its free...
  10. alldodge

    Oil Pressure Sensor (OPS)

    According to the manual the oil pressure switch and sender ar connected at location "C" A Tee is used to connect both to the same port. Suggest as Bondo mentioned, get an "easy out" and use that to remove. Be real easy doing so and if it feels like the easy out will snap off, need to stop. The...
  11. alldodge

    Mystery stalling issue on 7.4 mercruiser

    The red/purple wire comes thru at pin 6 and it should be there even when connector is disconnected. If not there, then there is corrosion somewhere, and can also be inside the main connector
  12. alldodge

    Rewiring

    If your wanting a diagram
  13. alldodge

    3 Bank charger w/24v system

    Don't check amps, check voltage. Red to Positive postl and Black to Negative post
  14. alldodge

    3 Bank charger w/24v system

    Yes use a meter If the batterys are fully charged and charger is turned OFF, each bat should read around 12.7V give or take. The meter being used can have variations. When charger is first turned ON and a bat needing to be recharged I would expect to see 14V or so. After it brings the bat up...
  15. alldodge

    Hard Starting and dies at wot

    I would check fuel pressure first Get carb Tee fitting, or get some fittings and fuel line to make up a Tee fitting so a gauge can be attached between pump and carb. Then get a vacuum fuel pump tester and record pressure readings at all rpm levels...
  16. alldodge

    Mystery stalling issue on 7.4 mercruiser

    This is the problem if the key is in the run or ON position
  17. alldodge

    Hard Starting and dies at wot

    I'm thinking a fuel issue, but need to do some testing to find out. When it dies, remove the flame arrestor and while looking down the carb (safely) have someone pump the throttle to see if there is any fuel being jetted in. When cranking, does the fuel pump run (listen, feel)? If pump is not...
  18. alldodge

    3.0L omc plug wires

    The EST distributor uses post type connections and are different then the leads which go inside the cap. EST has 2 connectors on the side
  19. alldodge

    Engine won’t go into drive after hitting sand bar

    Looks to me as a halon extinguisher, has a heat sensor to set off
  20. alldodge

    Raw water cooling question

    This is how I see it currently Water comes from pump and splits in 2 places. One goes to starboard manifold, the other goes to intake where the thermostat housing would be. Water fills the block via the intake T-housing and also water passes out the other side to the port manifold. Water...
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