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Thread: condensation on valve train

  1. #1

    condensation on valve train

    i was doing a valve adjust last night and noticed condensation on the valve train. there was actually two drips on one of the t&d rockers. is this normal when a engine has not been run in two months and several rain storms. the car is garaged. what measure can i take to stop that? now it's got my concern on the spare motor. should i put those little bags under the valve covers that absorb moisture?

  2. #2
    Join Date
    May 2005
    Dexter, New Mexico
    Yep it's normal I would say. Don't really know what you could do to stop it, but I think it the motor were ran up to 190* or so before shutting off to store it would boil away any condensed water that was in there. Warm garages and high humidity create this sort of thing. Don't think the dessicant bags are going to help, that water isn't just on the valvetrain it's pretty much all through the motor. Very dry here in the desert, maybe other guys on here can offer better advice. :? 8) JB

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    May 2003
    Coldwater, MI
    Vaccum pump will fix it, but its pretty common.
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines

  4. #4
    Administrator RACING JUNKIE bjuice's Avatar
    Join Date
    Apr 2003
    Greenville s.c.
    don't worry about it..we all have this problem..some just more than others ..depending where you live and what fuel you run,vaccum pumps are good for draining out moisture while engine is running...IT WILL NOT help with the problem you have with condensation occuring while a motor sits for a few months...

    but its normal.


  5. #5
    Senior Member DYNO OPERATOR
    Join Date
    Aug 2005
    Rifle Colorado
    Yes it's normal, especially if the humidity's high. Try warming it up, shut it off and pull the breathers out of the valve covers to let it breath while it cools. Don't cool it, just let it cool on it's own....

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