Search results

  1. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Hello, I installed the new anti-siphon valve and dip/ pickup tube and ran at idle. I get 6.5 PSI now just before the carburetor, as opposed to 4.3 PSI at idle with the old anti-siphon valve. The temperature was 72F when that was done. With the new ignition coil, I am only seeing blue in the...
  2. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Installing the new anti-siphon valve tonight, re-testing fuel pressure and spark color. One guy on Reddit had similar loss of power on the water past 3K RPM, after coming out of Winter storage. His deduction was:......" Spiders built a nest in your vent tube". I supposed I can shoot some...
  3. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Since installing the new ignition coil, I have not checked color with the spark gap tool. I can do that on all 4 cylinders again, as soon as the new dip tube and anti-siphon valve are installed a a day or two. Thanks....
  4. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    I don't have an easy/safe way to stick my head in the engine compartment while the engine is WOT on the water and check the timing being that close to the belts. The timing checked out fine when running on muffs. It was in "base-timing" mode with the extra jumper connected, and other wires...
  5. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    I was able to get the dip tube out by soaking the threads in a mixture of 2 parts acetone, 1 part brake cleaner, and 1 part red ATF. Some brute force, and it finally let loose. I was able to recover the spring from the anti-siphon valve in the bottom of the bilge, but I never did find the...
  6. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Good news is that the flapper is 100% intact. I was able to open the rubber coupler enough to look down inside and see it. As to how pliable it is , - I put a blank arrow down there and one of the rubber flaps moved, so I think that it is pliable enough. Bad news is that the anti-siphon valve...
  7. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Alright Lou, Thank you. I will let the boot area soak in silicone spray overnight. Even if I can get a 10mm opening between the rubber boot and the cast iron, I can slip my boroscope camera down there and check out the flapper. Thanks.
  8. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    This was all performed while the engine was running on muffs in the garage. As for getting out on the lake, I might, have one weekend left, sadly.....the temps are getting into the 50's now, and getting close to winterizing the engine either way.
  9. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

  10. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    The pressure showing on the inline gauge did drop as the throttle was increased. It was idling at like 4.5 PSI, then at double the throttle, the PSI went down to 4.2 PSI closer to 3000 RPM. Anti-Siphon Valve - What am I checking for here, the valve with the green marker line on it? Checking it...
  11. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Someone here mentioned that I would have to take the exhaust manifold off then (replace the gasket) to check to see if the flapper was in place. When you say, "missing and blocking the exhaust", do you mean that it might have overheated, crumbled, fallen down the exhaust and it remains are now...
  12. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    The fuel pressure definitely did not double at 2500RPM, in fact, it went lower than it was at 850RPM idle.
  13. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Hello I just measured the resistance of the ignition wires / spark plug wires using a digital voltmeter sent to 40K Ohms. Compared to the wires I replaced these are reading 2.03, and the older wires are 4.07, I believe they are well within spec, showing less resistance.
  14. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    It is. It's very tight indeed.
  15. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Hi Guys, I ended up replacing the ignition coil, since it was just two bolts, easy to get to, and not all that expensive. The motor fired right up, as it did before, ran it for two minutes at idle, bumped the throttle up to 2K RPM's and back down. It might have been slightly smoother than before...
  16. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Thank you for all the insight and analysis into this. Over the weekend I was able to go out and start up the motor. It was cold, had not been ran for a few days. Ambient temperature was about 78 degrees Fahrenheit and it started right up. I let it run for 2 minutes at idle, and I wiggled the...
  17. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Hi, I did unplug and re-plug in each wire while running and noticed the same 200-300RPM drop on the tachometer. What else could I do to test for mis-fires? Please watch the video and let me know if you can hear any. Thanks.
  18. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Hello, The TKS Sucking sound stops after a few minutes. I'll have to take off the flame arrestor and check for gas dripping after turning off the motor. There seems to be about 4PSI in the fuel line at all times, according to the inline pressure gauge that I installed. If 4.0 PSI is my baseline...
  19. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Hi, There is always spark to all 4 cylinders. I already did the spark gap test on all 4 cylinders. Timing was tested a month ago and it is correct. I never replaced the ignition coil because the consensus here was, - it's all or none. Are you saying to pour gas into the carburetor when it does...
  20. GeorgioP07

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Alright, I did a test run tonight with the fuel pressure gauge inline. I was reading 4.5PSI at idle and 4.2PSI at 2500RPM. Tried using a hand-held tachometer to validate the dash tachometer, was not working, will try that again later. The motor started up well into this run. Please take a look...
Top