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Engine tapping, how to fix?

Discussion in 'Early CJ5 and CJ6 Tech' started by Skullhead, Apr 15, 2006.

  1. Apr 15, 2006
    Skullhead

    Skullhead Member

    Delaware
    Joined:
    Mar 23, 2006
    Messages:
    53
    My 225 has a pretty good tap to it right now, it runs great except for that annoying noise. I know that on some engines you can adjust the lifters-? I think to quiet up the tapping. It is definitly the top end of the motor I hear it from both valve covers. Has anyone had this problem or know how to fix it the right way? thanks
     
    Skullhead, Apr 15, 2006
    #1
  2. Apr 15, 2006
    MOP

    MOP Active Member

    Pullman, WA
    Joined:
    Sep 25, 2003
    Messages:
    1,131
    New lifters or sub in a quart of MMO your next oil change?
     
    MOP, Apr 15, 2006
    #2
  3. Apr 15, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Hydraulic lifters = self adjusting.

    What MOP suggested. Otherwise just get used to it. ;)
     
    sparky, Apr 15, 2006
    #3
  4. Apr 16, 2006
    80cj

    80cj Member

    Hawaii
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    Sep 1, 2003
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    554
    I can vouch for Marvel Mystery Oil. It quieted down a noisy lifter in my 258 almost immediately.
     
    80cj, Apr 16, 2006
    #4
  5. Apr 16, 2006
    66cj5

    66cj5 Jeep with no name

    NorthWest Indiana
    Joined:
    Sep 10, 2003
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    2,084
    I use the Lucas oil in the truck.
     
    66cj5, Apr 16, 2006
    #5
    1 person likes this.
  6. Apr 16, 2006
    OrangeCJ5

    OrangeCJ5 Sponsor

    Taylorsville, UT
    Joined:
    Apr 29, 2003
    Messages:
    422
    This may sound dumb, but the only time my engine ever taps is when it's low on oil. Sometimes the simplest fixes are the ones we overlook. Hope I didn't insult you.
    Mike
     
    OrangeCJ5, Apr 16, 2006
    #6
    1 person likes this.
  7. Apr 16, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Sep 20, 2002
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    Mine gets louder as the oil level drops but it never goes away even when full.
     
    sparky, Apr 16, 2006
    #7
  8. Apr 16, 2006
    Skullhead

    Skullhead Member

    Delaware
    Joined:
    Mar 23, 2006
    Messages:
    53
    Yeah, I just totally went through the whole engine compartment with new hoses,filters,belt,tune up, everything that could be replaced basically. I added a bottle of Lucas with the oil change and it is still there. Replacing the lifters with hydraulic ones will eliminate it or it has hydraulic ones now?
    Wont leaving it like this cause problems down the road?
     
    Skullhead, Apr 16, 2006
    #8
  9. Apr 16, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
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    9,221
    :v6: came with hydraulic lifters
    :hurrican: came with solid lifters

    Rod knock?
     
    sparky, Apr 16, 2006
    #9
  10. Apr 16, 2006
    speedbuggy

    speedbuggy Looking for a Jeep now

    Living the Good...
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    Jul 1, 2004
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    1,270
    Sounds like a worn cam lobe. The only way you'll really be able to get it quiet is to replace cam and lifters. I don't think you can do any more damage to it, but I could be wrong... :oops:
     
    speedbuggy, Apr 16, 2006
    #10
  11. Apr 17, 2006
    Skullhead

    Skullhead Member

    Delaware
    Joined:
    Mar 23, 2006
    Messages:
    53
    Thanks for the help guys. I was thinking of doing a cam at some point, any suggestions? I had good luck with Crower before in my 258. I will put some Marvel in and see what happens for right now and once I'm through inspection I'll go with the cam and lifters. I am pretty confident it is not a rod knock, it's definitly coming from around the valve cover on both sides. thanks again
     
    Skullhead, Apr 17, 2006
    #11
  12. Apr 17, 2006
    Phalanxx

    Phalanxx Jeep Newbie

    iraq, texas,...
    Joined:
    Jan 13, 2004
    Messages:
    363
    pop your covers and jiggle your top end. they might have come loose. just an idea.
    also, alot of people have the comp 252H OF cam and like it. i went with the 260H which has about .450 lift (about the same as the edlebrock performer package i had on a chevy 350 and LOVED it) and rhodes lifters (which simulate smaller cam at lower rpm). hopefully, i have about a 240H at 800 or so rpm, 252H at around 2000 and 260H up around 3500. i dont have it running yet, i just finally got my oil pump in and still waiting on push rods and valve trane. then its assemble city (any volunteers??!?!) =)
    just some options..but comp are very good cams, my dad swears by them.
     
    Phalanxx, Apr 17, 2006
    #12
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