Recent content by larry1167

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    Flooded quadra jet carb?

    Hello Everyone - I have a Rochester 4 barrel quadra jet on a Chevy 350. Went to elevation (5,500') a few weeks ago and adjusted the fuel air mixture via the screws and increased the idle to get it to run a little better up there. This was the first time I had ever done this. I brought the boat...
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    Issues with Cobra

    I have '87 OMC Cobra with carburated 350 chevy. After a great day on the lake with no problems we get back to the dock and I tie up to retrieve my trailor. When I get back to the boat I try to turn it on and I get nothing. No crank, no electrical power... nothing. I know the battery is not dead...
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    Preparation for high altitude trip

    Heading to Lake Tahoe for a week. Taking my '87 Sanger with OMC Cobra 350. I have the special tool to adjust the jets on the carb and bought a Pro Pulse prop that is adjustable so I can play with the pitch. I called a shop in Tahoe and they suggested I advance the timing approximately 2 degrees...
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    Mechanical fuel pump is making ticking noise

    I have a 1987 OMC 350 with a mechanical fuel pump. It is making a fairly loud ticking noise. Is this a sign that it is ready to fail? It's the original fuel pump.
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    High altitude prop for good hole shot

    I have an '87 Sanger TX with OMC Cobra drive and Chevy 350 carbureted(Quadrajet) engine. Boat weighs about 2,600lbs. My local lake is at 500' and I have never operated the boat above 3,000ft. Gear ratio on the Cobra is 1.41:1. WOT operating range is 4200-4600 RPM. Currently running a SS...
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    Drain block in CA?

    I live in CA and keep my boat in my insulated garage. It never gets below 45 degrees in the garage. I am going to fog and change the oil today. I don't have to worry about the block freezing. What are the pros/cons of leaving the water in the block for a few months? The only thing I can think of...
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    OMC Cobra Drive-milky oil - UPDATE (not good)

    I have an '87 OMC Cobra outdrive. I was just drainging the oil and unfortunately it looks a bit milky. I know that means water. The other thing I noticed was a significant amount of black sludge on the end of the fill screw. Does the black sludge help confirm water in the oil, or does it show...
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    Tranny cooler for V6 4Runner

    I recently purchased a 2008 4Runner V6. It has the factory tow package, but Toyota did not install tranny coolers on the V6's in 2008. I was planning to take the 4Runner to Aamco and have them install the cooler. Can anyone recommend a good tranny cooler I can purchase online? Aamco has a...
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    Tow boat with Toyota V6

    Thinking of buying a 2008 Toyota 4Runner with 4.0 V6. Anyone tow approximately 3,500lbs with the same SUV or similar? How does it perform? Going from Ford Explorer with 4.6 V8 so I am a bit concerned about two less cylinders. Torque and horsepower are about the same on each engine. Any input...
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    Carb motor operation at high altitude

    I have an '87 OMC Cobra with a Chevy 350. Carb is a Quadrajet. I almost always boat at or near sea level. I am planning to take my boat to Lake Tahoe this summer. The lake elevation is 6,225. If I don't adjust the fuel mixture, will the boat still run half decent? I know it won't have the power...
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    OMC Cobra Trim Sender issue

    I have an '87 OMC Cobra outdrive. I attempted to adjust the trim sender today. I have no room left on the trim sender slots to make the gauge read in the down position. I took the trim sender off. When I move the arm controlled by the spring, I can get the gauge to read all the way in the down...
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    Oil fouled plugs at spring commission

    Just winterized my boat and fogged the engine. When I complete my spring commission next year and start the engine for the first time, should I leave the old plugs in to burn off the fogging oil then install new plugs? I typically change the plugs before I start it for the first time, but was...
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    '87 OMC Cobra Stern Drive- Shift Problem?

    I was adjusting the idle speed on muffs today, therefore, had to put the drive in gear to get proper read on RPM. Is it bad for the drive gears to put the drive in gear out of the water due to the fact that there is no pressure on the prop? When I did this, going into gear sounded much different...
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    Impeller for 1987 OMC Cobra

    I have seen a few threads that state the impeller does not need to be changed every year. My manual states otherwise. I have an '87 OMC Cobra with a GM 5.7 litre. I put about 50 hours a year on my boat. I do not run in salt water. Is it safe to go 2 years with the same imipeller based on my use?
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    Timing for 1987 OMC

    I have a 1987 OMC I/O with a 350 V8. It's a Cobra Outdrive. I am trying to determine the correct timing for this engine. My manual refers to two different models for this year and corresponding degrees BTDC...... 574AMFTC at 10 degrees and 574AMARY at 8 degrees. I am the second owner of this...
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