Recent content by johnrmclean

  1. J

    How to prime a Fuel System

    I just replaced the mechanical fuel pump on my 454 IO and I've been cranking for a while but not getting any fuel to the carb. Is there a trick to get the system primed and pumping fuel?? Thanks
  2. J

    Winterizing a Non Running Engine

    Well its that time but as of now I have not got my 454/bravo 1 running. I've always winterized a running motor. What is the best way to winterize a non runner?
  3. J

    Fuel Supply Problem

    Well a new problem. Running home yesterday my 1994 ..454 Baja was running fine at about 3500 RPM . Approaching home I decided to throttle back to about 1000 RPM and just run back in slow. When I throttled down it died out on me. It sputtered a couple times on cranking at first then nothing and...
  4. J

    About Knock Sensors

    My 1994 454 Mercruiser has a knock sensor on it. What do they do and how do they operate?
  5. J

    When warm 454 Mercruiser Stumbles and Missed from 1500 to 2500 rpm

    I have been working on my boat which was not run for a couple years to get it back in service this summer. Its a 1994 454 with a quadrajet carb. Initially it would not run up over 3000 RPM. I went through a series of tests etc and eventually found the ignition module was bad. I replaced the...
  6. J

    Max RPM Problem

    Always something. My 1994 Baja with a 454 Mercruiser, Bravo 1 , and 21 pitch stainless prop. sat for about 3 years. Over the last month I have been debugging one thing after another. On Saturday I finally thought I had it all worked out , got it fueled with 50 gallons, and launched however...
  7. J

    Warning Buzzer Problem 1994 Baja 272 .. 454 Mercruiser

    Warning Buzzer Problem 1994 Baja 272 .. 454 Mercruiser Down to my last issue hopefully. Not totally new. Got everything running fine. Engine runs cool. Temp gauge works ..holding under 100 degrees using muffs, exhaust manifolds just warm . No smoke or oil burning. Oil pressure gauge reading...
  8. J

    Engine does ot rev till runs for a while.

    So I have an 83 2 stroke 50 HP Mariner. Every time I take it out it will not go to full throttle until its been running at open throttle for a while , say 10 minutes. It runs at maybe 1/4 throttle till all the sudden it will surge up to open throttle. After that its ok for the rest of the day...
  9. J

    50 HP Surging Problem

    I just started having a surging problem with my engine at speed yesterday while on my way back in for the day. To stop the problem i had to pretty continually keep pumping the fuel bulb to keep a stead supply of fuel going to the engine. Today I replaced the bulb but it did not make a...
  10. J

    83 2 Stroke 50 HP Mariner Surging Problem

    I just started having a surging problem with my engine at speed yesterday while on my way back in for the day. To stop the problem i had to pretty continually keep pumping the fuel bulb to keep a stead supply of fuel going to the engine. Today I replaced the bulb but it did not make a...
  11. J

    Capt Tulley's Creeping Crack Cure

    Has anyone used this product to seal rivets and seams on aluminum boats? I'm reading some good reports for similar applications?
  12. J

    Advice On Sealing Seams and Rivets on an Aluminum Hull

    So I have a 17ft Sea Nymph aluminum center consul and it has a slow but steady leak somewhere. It takes on a couple inches over night. I'm wondering if there is a paint type product that I can coat the hull with that will seal the seams and rivet heads???????????????? Any advice on how to seal...
  13. J

    Which Steering System to Choose??

    I have an 83 17' Sea Nymph with a 50HP Mariner on it. The rack and pinion steering is toasted on it and parts no longer available so I need to replace it. It was recommended I go to a rotary helm unit such as the Teleflex NFB 147 series . The rack had a 4 to 1 turn ratio, the 147 4.2 - 1 ...
  14. J

    Steering System Recomendations

    I have an 83 17' Sea Nymph with a 50HP Mariner on it. The rack and pinion steering is toasted on it and parts no longer available so I need to replace it. It was recommended I go to a rotary helm unit such as the Teleflex NFB 147 series . The rack had a 4 to 1 turn ratio, the 147 4.2 - 1 ...
  15. J

    Power Trim For1983 50 HP Mariner/Merc

    The water is at historic low levels here on lake St Clair so I'm trying to find a donor motor for a power trim unit. Can anyone tell me what years and sizes of motors would be compatible with my motor? Also, where can I go to see a picture of the actual components on a motor so I know what I'm...
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