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  1. Jet Boats
    Yep, I milkshaked the old girl. Who all has had their "good" friends make a movie of it? ;) Milkshakes - YouTube
  2. GN7 On the Dyno
    Both of my motors started doing this at the beginning of the season, one ( that runs about 25+ hotter @ 200*) fixed itself. The port is still doing this even after a long run and even @ Loto with 80* water temps and 90* air temps. This is the only corner where the milk is forming in the...
  3. GN7 On the Dyno
    Woke up this morning pulled the dipstick and the oils milky. I changed it Friday night and only ran it during the day sat. It would hardly rev over 5200 where it usually spins 6500 easy. I figured it could be a head gasket so I should comp test it. I pulled the plugs and number 5 had a...
  4. Jet Boats
    I'm at a crossroads with my family's 75 Wriedt Maverick 18' jet boat. It's been in our family since day 1 when my Dad bought it off the lot in Norwalk, CA. The jet was rebuilt about 15 years ago, but the engine is '75 original. It still runs but blows a lot of oil out of the breathers and has...
  5. Jet Boats
    Ok guys, I know this topic is a little redundant and for that I apologize. After a great weekend in Laughlin/Mohave I decided to take one more run from Davis dam down to Harrahs and back several times. Always fun to make a few early morning speed runs to make sure the folks at the Davis...
  6. Jet Boats
    brought it BACK out tonight...boat was running nice and free, lake was empty and a thunderstorm rolling in. So I decided to open it up. When I shut it down, the vacuum gauge started being erratic, there was a blowing/ sucking sound...no biggie, I just figured I lost a vacuum line. It would...
  7. GN7 On the Dyno
    What's the best way to isolate water in the oil? New motor, light milkshake running on the trailer. Should I isolate and pressure test the water pump (River Rat), intercooler then block? How much air pressure is safe?
  8. Jet Boats
    Well I ran a quick pressure test on my (freeze cracked) 455 Olds block. It seems to hold pressure (about 10 psi of air) in the water system without much pressure loss that I could tell. So that should mean that the crack is not too bad, and it doesnt seem to be leaking into the oil galley...
  9. GN7 On the Dyno
    well my uncle mark has turned his motor into a milkshake:D he ran it hard very hard since the build.he was out friday and held it to the floor for about 2 miles down the lake racing a fountain boat:)bulbwhy i dont know:|errbut anyway he said it just started losing power like he was letting off...
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