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  1. alldodge

    1997 5.7LX no start

    That just doesn't sound right. On the negative side of the coil there should only be a gray tach and another gray that goes back to the TB ignition module Here is a 4.3 but wiring is the same
  2. alldodge

    What controls the TKS module on a Merc 3.0?

    On a 3.0 the temp switch applies a ground to keep the TKS module extended. If the temp switch does not stay closed then the module cools down and retracts the post, which would cause the motor to draw in more fuel then needed. From what your talking about I think this would be the issue
  3. alldodge

    Boat won't shut off

    Agree has to be back feeding, but I'm not seeing a diode in the schematic
  4. alldodge

    Mercruiser 4.3 added 4qts Still below ADD mark

    Measure the dipstick tube Standard 24 inch Closed 30.5 inch This brings up another issue which does not make since Standard dipstick 21.5 and tube 24 = 2.5 inch above the tube Closed dipstick 30.25 and tube 30.5 = .25 inch above the tube Probably another misprint From manuals 32 and 25
  5. alldodge

    2000 Mercruiser 350 cutting out under heavy load

    Have to have the right fittings. The path for fuel supply is filter, pump, Regulator and fuel rail. Anything over 30 psi goes back to the filter and repeats.
  6. alldodge

    Volvo Penta power steering issues

    Not real versed on VP steering but think they have the need to be setup as Mercs to get the valve channels in correct alignment. In the pic not the flats need to be straight up and down once the steering cable is aligned Het Scott Danforth
  7. alldodge

    Kill switch issue possible short?

    The pic only shows the ignition side, which the purple wire also goes to the alternator and choke Power from the motor comes up on the red/purple wire going to the key switch. The purple wire is ignition which goes to the kill switch and then to the gauges and back to the motor. The...
  8. alldodge

    Mercruiser 4.3L electrical wiring diagram

    The Red/Purple wire comes from the motor thru the ignition switch and then to the gauges. If disconnecting the gauges stops the drain then then I would see if the key switch is the issue, or something has been connected to the wire. Could also be that the wire coming from the motor
  9. alldodge

    Kill switch issue possible short?

    With the wires getting hot behind the shifter as Bondo mentioned that's corrosion. Which ignition system do you have? I'm thinking EST distributor
  10. alldodge

    1997 5.7LX no start

    A TB dizzy, run though this guide
  11. alldodge

    Mercruiser 4.3 added 4qts Still below ADD mark

    Here is what I found using your serial number (item 19) Closed cooling uses a dipstick of 30.25 inches Open cooling uses a dipstick of 2.50 inches https://www.mercruiserparts.com/bam/subassembly/31492/11812/140
  12. alldodge

    Mercruiser 188 Coil gets hot/loses spark

    Electrical things heat up because of current. A coil should not get much beyond warm. The manual does list 1.8 to 2 ohms for resistance wire, but may want to try a 3 ohm balast resistor based on coil findings Measure the coils and see if they conform to the pic
  13. alldodge

    Spark advance 1977 Ford Marine 175 hp 302 Engine

    MFD is Microfarad and is the capacitance measurement of the condenser Condenser is old term for Capacitor Advance is 10 to 13 degrees Here is the OEM manual http://boatinfo.no/lib/mercruiser/manuals/mercruiser2.html#/674
  14. alldodge

    Trim sender 3 wire

    OK this needs to be in the VP section GA_Boater this way you will get more folks looking Finding the part was listed as used on 1996 thru 1998 earlier production models NC, LK, BY, and ohm value is from 0 to 160 Need a motor serial number to verify, but do have wiring for digital trim for a DP
  15. alldodge

    2000 alpha v8 no power on purple wire cranking

    I'm going to assume power on the purple is not being lost at the key. On a EFI motor Purple changes to Pink when it connects to the EFI harness. Pink energizes the MPR which transfers power to all other circuits including coil. I'm thinking corrosion in the EFI harness connector or MPR or main...
  16. alldodge

    How to test a coil ?

    The OMC uses a ESA module which interrupts the spark so it can be shifted out of gear. Here is the wiring for the OMC and while a V8 it works the same
  17. alldodge

    Mercruiser 5.0 carb crank/won't start condition :(

    Sure is a puzzler, have spark and fuel and will not start. If the kill switch had a problem passing power there would be no spark. If there is spark and no fire then maybe the fuel is not gas, or more water then gas. Remove the filter and pour contents into a clear container. Allow to sit a...
  18. alldodge

    1999 Chaparral 1930ss 4.3 Mercruiser Starter Replacement

    I have a 25 year old boat and its still going strong, did have a slave relay go out Suggest doing a couple checks, and since there was no click at all, might be the slave relay To engage the starter, the key switch sends 12V on the Yellow/Red wire, thru the neutral safety switch, then to the...
  19. alldodge

    Frozen Steering

    The cable does come ut but if your going to replace everything, just remove the two bolts holding it and replace. The one linked at GLS can be found cheaper...
  20. alldodge

    Problems with my 502(s)...

    Could also use a 12V resistor type LED and a paper clip to see if there are any codes. The MEFI 1 was not that great for providing much info, but it can help. Install LED, install paper clip, turn ignition ON and do not start. Start counting flashes If there are no codes it will flash 14...
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