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Thread: 300ex engine pinging

  1. #1
    Join Date
    Nov 2008
    Posts
    1

    300ex engine pinging

    My son ran his 300ex out of oil and when i checked it the dipstick showed nothing. I put oil in it and it is pinging kinda bad . What part of the motor do i need to rebuild and how much work will it be? can anyone help with this matter?

  2. #2
    Join Date
    Apr 2005
    Location
    KC, Missouri
    Posts
    5,225
    I'd start with the head/valvetrain. The Cam/Rocker area is the most likley cluprit for ticking noise.
    Brandon -O||||O-
    1998 Honda TRX300EX (330)

  3. #3
    Join Date
    Nov 2008
    Location
    Danbury,ct
    Posts
    293

    Thumbs up

    Find out why the oil is gone =]

  4. #4
    Join Date
    May 2008
    Location
    Wisconsin
    Posts
    98
    Most likely if he ran it out of oil its either leaking in the motor from the valve guides or its leaking somewhere on the case. The pinging could be something more then valves. It could be piston slap or the piston pin or crank pin badly worn.
    2005 TRX 450R Just bought it. FMF pipe ICE tires and nerfs looking for some A Arms.

    1995 Dodge 2500 Cummins 12 Valve 6" Stack with pump turned up #0 fuel plate and a billet trans. 560 hp 870 ftlbs or torque

  5. #5
    Join Date
    Nov 2008
    Location
    Danbury,ct
    Posts
    293
    Could be something in the bottom end also, crankshaft maybe?

  6. #6
    Join Date
    Dec 2009
    Location
    Portsmouth, OH
    Posts
    2
    check the camshaft bearing first just fixed my brothers it is a cheap 12 dollar part

  7. #7
    Join Date
    May 2008
    Location
    Wisconsin
    Posts
    98
    this thread is over a year old i think by now he has this problem fixed....im just saying
    2005 TRX 450R Just bought it. FMF pipe ICE tires and nerfs looking for some A Arms.

    1995 Dodge 2500 Cummins 12 Valve 6" Stack with pump turned up #0 fuel plate and a billet trans. 560 hp 870 ftlbs or torque

  8. #8
    Join Date
    Dec 2009
    Location
    Long Island
    Posts
    30
    And your the one who bumped it up lol.

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