ticking noise in reverse gear increases with speed in engine rpm

Discussion in 'General Motoring' started by jsanders, Oct 15, 2006.

  1. jsanders

    jsanders Guest

    89 lebaron 2.5 turbo 3 speed

    problem is only in reverse gear. as you accelerate the engine, there is
    a ticking noise, and it gets louder and quicker as the rpms go up. take
    ur foot off the gas and they kinda go away. not related to vehicle
    speed, just engine speed.

    what could it be? reverse gear cogs? how easy to fix?
     
    jsanders, Oct 15, 2006
    #1
  2. jsanders

    jsanders Guest

    anyone here?
     
    jsanders, Oct 17, 2006
    #2
  3. jsanders

    DeserTBoB Guest

    In reverse gear only? Weird. It can't the the reverse gear train,
    sicne it 1.) varies with engine speed, not drive shaft speed, and 2.)
    any mechanical failure like that would more than likely (but not
    always) be apparant somewhat in all driving modes.

    What strikes me here is that torque on the engine/transaxle is
    reversed when in reverse gear, and there maybe something, due to slack
    in motor/trans mounts, that's scraping, like a drive belt or pully. I
    remember this was exactly the case on a few K-cars back in their
    day...put it in reverse, and the alternator drive pully would scrape
    the plastic splash shield underneath. Never heard it in drive or
    neutral. Replacing a motor mount cured the problem. Two things I
    remember about the '84 K-car fleet we had...motor mounts going bad,
    and bad rubber bushings on the alternator mount.

    What I'd do is have someone behind the wheel put the car in reverse
    with the service brake on, and then start tracking the noise under the
    hood with a tube or hose. Don't think for a second that just because
    you poke your head under the hoot and is sounds somewhat like it's
    coming fromt he transaxle that it's really the transaxle. Noises like
    this will bounce around off of various surfaces and be somewhat tricky
    to track down.
     
    DeserTBoB, Oct 17, 2006
    #3

  4. there he goes, another "take the whole engine apart when all it needs
    is a thermostat" wannabee mechanic tech advice post...

    you drive a 1978 Honda- if you had any brains as a mechanic, you'd
    never drive that POS in the first place !

    (laughter...)
     
    duty-honor-country, Oct 19, 2006
    #4
  5. jsanders

    jsanders Guest

    even if i put the service brake on, u can't hear it till you
    accelerate. if it idles in reverse its ok.

    funny thing, in reverse yesterday, it didn't start doing it till i
    travelled about 30 ft, then it came back
     
    jsanders, Oct 20, 2006
    #5
  6. jsanders

    DeserTBoB Guest

    Do you mean you had the car braked and revved up the engine and
    reverse and it started making noise again? If so, check those motor
    and tranny mounts.
     
    DeserTBoB, Oct 20, 2006
    #6
  7. take a hint, Boob- you posted twice, and got no replies save for troll
    warnings about yourself- take a hike- get back in the freezer, liberal
    scumbag...

    or should I say, get back in your Honda ??
     
    duty-honor-country, Oct 20, 2006
    #7
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