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  1. jimmbo

    1990 V4 runs on two cylinders at low RPMs

    Do you have a Spark at Cylinders that can jump a 3/8" gap? Since the 2 lower Cylinders are affected, and they share a Carb, I would start there. Since it seems to run better above 3000 rpm, start by checking the Fuel Level, and all the Idle Circuits. Likely clogged with dirt/gum/varnish
  2. jimmbo

    . . . and I Thought Hi-tech Boat Engines Were Bad . . .

    That would apply to just about every British Car ever made
  3. jimmbo

    Lower Unit Gear Oil Running Temp ?

    When in use, the Gear Oil Temp is regulated by the Water the Motor is passing through. In most cases the Oil is 75-90 weight. Your plan is to drill it in the Skeg, and then seal it. So how are you getting the Info from the Sender? Wires sticking out are going to cause Turbulence, in front of the...
  4. jimmbo

    Everything done but low rpm at WOT. Distributor spring?

    Full revs in Neutral means Eff all. The engine is not under Load. It is a great way to throw a Rod, due to the very high G-loads suddenly imposed on the Rods and Pistons. Did you check the Y Pipes and the Exhaust Bellows?
  5. jimmbo

    . . . and I Thought Hi-tech Boat Engines Were Bad . . .

    A couple of Friends have or have had Beamers. One got his in the early 80s, and for a Couple of Years really liked it(why I have no idea, as I thought it was a POS). Once the Warranty ran out, he started disliking the Car. A couple yrs later, his Kid managed to Roll it on a City Street(never did...
  6. jimmbo

    Everything done but low rpm at WOT. Distributor spring?

    Sorry. I wish the Site, could provide an Identifier, for the OP, cause after many posts/replies I get confused. I will edit/delete the post More Blade Area might help. Have you ever checked to see if the Exhaust Pipes are Clear? If the damn engine can't Exhale...
  7. jimmbo

    Y- Pipe Question

    Someone might have put one of those Annoy Everyone Else on the Lake, thru hull Noise making kits. Pictures would help a lot
  8. jimmbo

    Everything done but low rpm at WOT. Distributor spring?

    Deleted, as I thought I was responding to the OP
  9. jimmbo

    Everything done but low rpm at WOT. Distributor spring?

    That's the way I always hit the throttle
  10. jimmbo

    Lower Unit Gear Oil Running Temp ?

    All of the Outboards and I/Os. myself and Family have had over the last 60 yrs have been kept outside in temps that have dropped to less than -35. Never burst any Seals. What in the world does having a temp sensor in the Oil do, that having a Thermometer next to the Gearcase wouldn't? Get a...
  11. jimmbo

    40 hp johnson electric shift Model # 40ES 69R

    Racer is taking that to the Grave
  12. jimmbo

    40 hp johnson electric shift Model # 40ES 69R

    If you don't want to change the oil a couple of times, you can just let it drain for a day or so, then refill it with the Precision Blend. I am a bit more concerned about mixing oils than racer... but that is a personal choice
  13. jimmbo

    Mercruiser 5.0 carb?

    Before you go replacing the Module, check the wiring Harness for signs of abrasion, pinched wires, loose connections, etc.
  14. jimmbo

    1986 90hp johnson primer bulb collapsing..hear me out

    Sounds like a ruptured diaphragm/leaky shaft o-ring in the VRO pump
  15. jimmbo

    How to find pitch and diameter of a stainless steel prop and is it left or right

    OMC coated their Stainless Props with Teflon, simply to hide rusting, and Teflon sounded Cooler than Black Paint. Maybe it was to imply that water wouldn't stick to the Blades...
  16. jimmbo

    Mercruiser 5.0 carb?

    Defective Ignition Module, or the Module is somehow being shorted to Base Mode all the time
  17. jimmbo

    40 hp johnson electric shift Model # 40ES 69R

  18. jimmbo

    . . . and I Thought Hi-tech Boat Engines Were Bad . . .

    Is that the infamous 3.6, with Elastic Timing Chains? One of my Caddies has that engine, and the chains were supposedly changed under warranty a few years back. Rotors and Pads are aren't too pricy, but the rotors are throwaway items
  19. jimmbo

    . . . and I Thought Hi-tech Boat Engines Were Bad . . .

    The entire Car is Failure Prone. These Barbarian Motor Wrecks don't Nickel and Dime you, they 100 and 1000 you at every turn.
  20. jimmbo

    Water coming up through carpet

    What is that hatch in the 2nd Picture about? Remove the Engine cover, is there water in there? Without seeing the entire Boat layout it is very difficult to make any Diagnosis, as to where water could be coming from. Carpet, can hide a Multitude of Sins
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