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  1. alldodge

    7.4 increased operating temp

    Bravoits is where the intake hose fitting starts to swell closed. It mostly happens in salt water but can have issue in fresh. To check fo it, the intake hose ftting is removed and see if you see some similar to this
  2. alldodge

    Mercruiser 4.3L Engine Problems...

    Here is your first thread. https://forums.iboats.com/forum/engine-repair-and-maintenance/mercruiser-i-o-inboard-engines-outdrives/10625255-mercruiser-4-3l-engine-problems You can always find your thread you started by going to your page (click on your name) and look for "all threads started"...
  3. alldodge

    2007 Crownline 21SS 5.0 Mercruiser

    The timing of your motor is not checked with a timing light. Bring number 1 piston to TDC then check the position of the rotor to the cap as seen below Your fuel pressure should be 43 psi at 1800 rpm
  4. alldodge

    Volvo penta stalled now won’t start

    Being a GL (A thru E) it would have 2 diodes going to the relay coil to energize it. You should get power from the Yellow/Red thru one diode while the motor is being cranked. Once started the power comes from the ALT. Since your not getting power to the relay, I would first look to see if...
  5. alldodge

    Need hard plastic glue

    Couple years ago I replaced my trim switches and then glued a new cover (item 5) on using PVC medium strength glue, or at least that is how I remember it. The switches never fit just right so today I used a heat gun and pocket knife and took the cover off. Pulled switches and space (item 8)...
  6. alldodge

    Help! Boat won't start after sinkingb

    Hope your mechanic is better then most. In any case get a voltmeter and see where your not getting voltage and where your not https://maxrules.com/JOwireindex.php Need to find out if your getting power to the start relay when key is operated
  7. alldodge

    Thunderbolt IV ==> Thunderbolt V?

    Should have said MEFI 3 it's in manual 25 and 26, here is 5.0 and 5.7
  8. alldodge

    1984 228 305 alternator over charging

    Your Red/Purple or Orange (guessing the Red/Purple) wire is not making a connection. With key OFF you should see 12V on the Orange and the Red/Purple wires. With key ON power should be on the Purple wire. If the Red/Purple wire is disconnected, the voltage will spike
  9. alldodge

    Thunderbolt IV ==> Thunderbolt V?

    Yes, you can remove the TB-IV and install the TB-V, but you also need a knock module. The issue so far is not sure as there is a knock sensor been made for a V6. Not saying there isn't but will keep looking. Now that said, you can also wire up the TB-V in place where the IV was, but...
  10. alldodge

    350 Mag Overheating

    You bring you a very good point. If the check balls are allowing water to pass thru going into the manifold, then there would not be as much water available for the block, which would cause over heat. Pull it apart and see if they move feely
  11. alldodge

    4.3l Not turning off

    Seeing this is a TKS its probably the diode shorted out
  12. alldodge

    8.1 GXiE Engine Only Runs WOT

    Without a scanner I would check fuel pressure. Your IAT is located on the intake as item 2 in link an the Merc part number 805223T (I know yours is a VP). Don't see the IAT as being the problem. Adding a resistor to the ECT would tell the PCM that it is even colder so it needs more fuel...
  13. alldodge

    350 Mag Overheating

    One flows to the manifold and others are used to drain. Hose item 5 feeds water in and during weatherization hose item 3 drains
  14. alldodge

    Volvo Penta Stalling and alarm location

    I think your measuring pressure at the low pressure pump. You should also have a Vapor Separation Tank (VST) which contains the high pressure pump. To read the HP pump, you need a fitting to place in line at the TB...
  15. alldodge

    454 mag mpi running rich and using a lot of fuel

    OK, your right Ted it is a sender and not a switch Doesn't have much resolution, my mistake
  16. alldodge

    High Idle on 5.7 Volvo Penta

    Really need to read codes Faster idle can be from the TPS sending the wrong voltage to the ECM. It has 3 wires on it, 5V, Gnd and Reference. Should be a Orange/Blue wire which supplies reference to the ECM. At idle this voltage should be near zero (0.5V)
  17. alldodge

    Volvo Penta Stalling and alarm location

    There is another poster which asked the same question, so I will answer it this way. The LK series manual does show 13 +/- 2 psi for TBI. That said, it would not be the first time that there was a typo in a manual. The TBI is a GM designed unit which was used by Merc and VP. All the GM and Merc...
  18. alldodge

    ghost in the machine ?

    The coil gets tested using the ohm scale as in the link above. Center post to - should be 6000 to 15000 ohms From + to - should be .4 to 2 ohms The battery when taken off a charger will be above 12.7 for a while. Another thing that can show higher then normal is the accuracy of the meter...
  19. alldodge

    Help on revving without engaging prop

    The center button does not push in?
  20. alldodge

    ghost in the machine ?

    Where do these 2 wires go to?
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