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  1. jrs_diesel

    4.3L with a lean sneeze at idle

    A friend of mine recently bought a 2004 Bayliner with the 4.3L V6, it has Thunderbolt 5 ignition and a 2 BBL Mercarb. I've been helping him fix some things on it. One of the problems we have noticed is that it has a lean sneeze at low idle, mainly when it's in gear. We had to get the cap off of...
  2. jrs_diesel

    Importance of proper inflation

    All this time I had been under inflating my SIB, until my last outing. I had purchased a pressure gauge to check the tube and keel pressure (wood floor, inflatable V keel). I had been inflating to about 2 PSI by feel, it felt correct, and the boat performed OK. Using the pressure gauge, and...
  3. jrs_diesel

    Pressure gauge

    So I bought a pressure gauge, a Bravo SP-125 from west marine. It came with a bunch of adapters for different air valves, but apparently, this thing does not work with halkey-roberts valves. The way the gauge is designed, it looks like I can put it in my air line from the pump. I'd like to...
  4. jrs_diesel

    2004 175 Evinrude DI, where is the fuel filter?

    A buddy of mine has a 2004 Evinrude 175 Direct Injection (not an E-TEC), on his Triton bass boat. Both of us are stumped as to where exactly the fuel filter is mounted on it. The parts diagram shows one, but not exactly where. I have a feeling it's buried in the lower part of the cowling, but I...
  5. jrs_diesel

    Anyone ever open up a powerpack?

    I just replaced a dead powerpack on my 86 Johnson 9.9. I am an electronics technician and just want to crack open the dead powerpack to look inside and possibly fix it. The bad thing is, the circuit card is epoxied in place. Has anyone ever tried to take one apart, and if so, what's the best...
  6. jrs_diesel

    1986 Johnson 9.9 died while running, powerpack?

    My 86 9.9 died out on the water Saturday evening. Luckily I was still in the no wake zone and was able to bring it back to the dock with the help of a passing sailboat that was happy to give me a tow. Cooling water was good, it did not overheat. Motor still spun easily with the rope start...
  7. jrs_diesel

    Sand blasting an old motor?

    I am rebuilding my 72 6 HP, and currently have it torn down. The paint is worn, and showing aluminum in some places. Thankfully there is little corrosion to deal with. I would like to repaint it, and would like to sand blast it before hand. I have a sand blaster at work that I am able to use...
  8. jrs_diesel

    Sealant required under water pump plate? 86 Johnson 9.9

    I am having cooling issues with my 86 9.9 HP Johnson. Yesterday I pulled the lower unit and rigged up a garden hose to supply the powerhead with water via the copper water tube. Engine didn't get hot this way, and the tell tale had a nice solid stream. So now I am looking at the water pump. I...
  9. jrs_diesel

    Indexing plugs on carbed engines

    So I've read about indexing spark plugs on the direct injected engines, and wonder if doing the same thing on older carbureted engines would be of any benefit. My questions are, would indexed the plugs help in any way (less plug fouling maybe), and if so, which direction does the gap need to...
  10. jrs_diesel

    86 Johnson 9.9 running hot?

    My 86 9.9 seems to be running hot. Earlier this year I replaced the thermostat, thermostat spring, and put a new water pump in it. Seems to be working fine. Yesterday I took it out fishing, at idle and low speeds (not planing) the tell tale has water flowing out of it. On plane however, the...
  11. jrs_diesel

    40 hp 4 cylinder, manual to power tilt conversion?

    A friend of mine has a 94 (i think), Mercury 4 cylinder 40 hp engine on the back of of his aluminum Tracker boat. The motor only has manual tilt. Is there any way to convert it so that it has power tilt?
  12. jrs_diesel

    1986 Johnson 9.9 tilt pin stuck

    So the tilt pin on my 9.9 is rusty, and stuck in place in the lowest hole in the clamps. I've hit it with some PB blaster to try and work it loose with not much luck. Any suggestions on how I can get the pin out?
  13. jrs_diesel

    Safe cleaner for tubes?

    So I had some mice that decided to make a home out of my 9 ft SIB this winter :mad: . Luckily they did not chew on the tubes, which are holding air with no leaks at all. I vacuumed out all of the debris, now I have to clean off what is left on the tubes. Any reccomendations on household...
  14. jrs_diesel

    So my boating season is off to a great start...

    And my boat hasn't even hit the water yet. :( So I went in my garage this past weekend to get our bicycle tire pump for the boys bikes during a warm day, and I found a dead mouse :eek: . So I set a few traps out around the garage, and so far I caught 5. I noticed that the traps in the back...
  15. jrs_diesel

    1986 Johnson 9.9 hood latch

    So I went through my cooling system this weekend, replaced the water pump and installed a new thermostat and spring. My motor did not have a thermostat or spring when I bought it, so the water cover on the cylinder head came out fairly easy. Putting it back in with the spring was impossible so I...
  16. jrs_diesel

    Seat options for an inflatable?

    I have a Bombard Max 3 (9' SIB), which has the wood floor and inflatable keel. Love the boat, but I don't like how far forward they put the bench seat. Luckily I am tall so I don't have much of a problem sitting sideways to be able to reach the tiller and drive. I would love to install a seat...
  17. jrs_diesel

    1986 Johnson 9.9, water intake screen?

    I'm replacing the water pump and thermostat on my 9.9. I noticed that the the water intake screen in the lower unit is broken, not all of the intake holes have the screen material left. The screen, part number 318991, is listed as no longer available. Is this part really necessary? I mean, I...
  18. jrs_diesel

    Rebuild question, cleaning rust from cylinders?

    I am rebuilding my 72 Johnson 6 HP. Right now I am cleaning up the cylinders to get them ready for pistons. The cylinders look ok, measured great, and are still round. I can still see the factory cross hatching. I plan on giving them a light hone, but I'd like to clean up the surface rust that...
  19. jrs_diesel

    Painting a motor

    As part of the rebuild of my little 6 HP Johnson, I have a question about painting. Since the motor is torn down, is it better to paint all the parts seperately/individually or when put together? Especially the powerhead, I'm a little worried about paint going where it shouldn't. How did they...
  20. jrs_diesel

    Honing the cylinders?

    I need to hone the cylinders as part of the rebuild on my 72 Johnson 6 HP. My question is what sort of hone do I need? The bore is 1.95 in. I need to lightly hone them for the new set of pistons and rings. The bore still shows the original cross hatching, and feel smooth to the touch. Some very...
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