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Thread: Sea Foam

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  1. #1
    Join Date
    Oct 2007
    Location
    Spring, Texas
    Posts
    141

    Sea Foam

    Bad results. Poured in thru vac at brake booster. Turned engine off. Five minutes later I started it and it was very rough. Loud knock and wants to die. Please any ideas would help

  2. #2
    Join Date
    Apr 2005
    Posts
    4,229
    I let it suck it up with the vac pressure until it stalled, then poured the rest in.

    It would stumble & buck at first, so give it some gas to start. Should work out just fine.
    Gone, but not forgotten!

  3. #3
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Sounds like you tried to hydraulic lock the cylinder by putting too much liquid in at once. You can bend a rod like that.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  4. #4
    Join Date
    Oct 2007
    Location
    Spring, Texas
    Posts
    141

    probably right

    I bet i did bend a rod. Might check again later

  5. #5
    Join Date
    Oct 2007
    Location
    Spring, Texas
    Posts
    141

    Yep

    Motors done

  6. #6
    Join Date
    Aug 2003
    Location
    Spring, TX
    Posts
    281
    reading this thread makes me nervous as hell to seafoam my truck.
    -leo-
    2009 Silverado CC - 6.0L L76|6l80e|3.42s|4/7 drop w/ helper bags

    01 silverado ecsb - (RIP 04/2009)

  7. #7
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Pull the plugs and crank it for about 30 seconds. You may just have a heavy concentration of liquid in the back two cylinders.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  8. #8
    Join Date
    Oct 2007
    Location
    Spring, Texas
    Posts
    141

    Pulled the plugs

    No.7 Plug tip bent to ****. Won,t even turn over now. Anybody know a good engine guy

  9. #9
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    You're in luck living where you do. There are tons of good LS1 technicians around the Houston area. You might be able to get one of the local guys in your area to come see what you did before you send it off for repairs.

    When you say bent the plug, what did it do exactly? I wonder if a chunk of carbon fell of the valve and wedged between the piston and head.

    Did you pull all the plugs and it still won't turn over?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  10. #10
    Join Date
    Oct 2007
    Location
    Spring, Texas
    Posts
    141

    yep

    Pulled em all. The entire tip and electrode are bent and twisted

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