90 TR click sound | FerrariChat
Buy

90 TR click sound

Discussion in 'Boxers/TR/M' started by Mr.Chairman, Nov 1, 2008.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #1 Mr.Chairman, Nov 1, 2008
    Greetings all. Tr was out today and running fantastic. I noticed something though and I am concerned. On take off - release the clutch completely and just when she starts accelerating you hear a clicking sound from the left rear suspension. o.k.. follow me here.. Take off in first - no clicking as RPMs increase then go into second - no click.. Lets say you run the rpms to 3,000 and abruptly release the gas you get a single click. Depress throttle again - single click. Strange thing it does not happen all the time. I went to an incline to see if it has to do with weight and load - no dice... It happens more on level ground. Its a pretty loud click but as I said a single click.. shift to second maybe a click once clutch is released.. No noise there after.. bring rpms to 3000 let go of gas and 1 click - abrupt depression of the gas pedal - you know to kind of make the car jerk - 1 click.. I dont think this is something in the gear box. That part if running great.. I did rub a curb exiting a toll booth and I heard the click as I was running the curb. Suspension looks o.k.. but I may be missing something here. Any ideas... Please advise..

    Robbie
     
  2. raptr

    raptr Karting

    Jan 22, 2007
    86
    #2 raptr, Nov 1, 2008
    Robbie,
    I realize that I could be way-off,but is there any way it could be the A/C compressor?My Boxer's compressor puts out a very definative clicking sound occassionally which is very noticeable even with the loud exhaust that is on the car.It sounds like a small ball-peen hammer hitting a hunk of steel.Could it be that you have the climate control on the boarderline of the A/C running or perhaps the compressor going bad?
    -raptr
     
  3. northern frog

    northern frog Karting

    Oct 26, 2007
    50
    Calgary Alberta Cana
    #3 northern frog, Nov 1, 2008
    Bushing worn out, or some other suspension attachement could do that. Does it click under braking?
     
  4. Jon Hansen

    Jon Hansen Formula Junior

    Feb 6, 2007
    509
    Grand Rapids, MI
    Full Name:
    Jon Hansen
    #4 Jon Hansen, Nov 1, 2008
    Check that your wheels are on tight. Not sure if you have the single or 5 lug bolts/nuts on this car, but it's EZ to check yourself too. I've had this happen occasionally, and it makes for a random clicking noise.
     
  5. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,931
    CA and OR
    Full Name:
    pit bull
    #5 luckydynes, Nov 1, 2008
    I had a "click" in my 308 diff when it failed ... nothing like the TR diff failure but definitely had the makings for busting a welded carrier vs. the one piece forging that's in the 308 ... just in case you don't find anything obvious, this would be something to look at before it blows. Something that's "tell tale" is the amount of end float in the output shafts ... basically one side had none and the other side had the total end float that is usually split between left and right ... .015-.020 end float per side is what I've found to be "minimal wear".

    cheers
     
  6. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #6 Mr.Chairman, Nov 1, 2008
    No click under braking.. Just on acceleration. A/C is off. I have that issue with the fan speed not working. Also A/c does not blow cold. I havent used the a/c all summer nor heat for that matter. Appreciate the feed back. I will take the wheel off and check bushings and bolt. You seem to be dead on with the sound. It does sound more like a ping.. Could it be the a/c pulley? This would still spin even with a/c off. Maybe thats why my a/c is not blowing cold.. matter of fact the compressor does not even cycle when you turn the a/c on. Low or no freon would also cause the compressor to not cycle. Hmmm.. excellent info.. thanks.. I will look into this.

    Robbie
     
  7. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #7 Mr.Chairman, Nov 1, 2008
    I dont think its in the diff... Its more of a ping then a click.. but its without a doubt worth it to check out.

    Robbie
     
  8. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #8 Mr.Chairman, Nov 1, 2008
    5 lug... Actually that was the first thing that came to mind. When I take the wheel off I want to check the lug bolts as well.. Its crazy.. it sounds like it is right outside my door. Outer suspension or wheel.

    Robbie
     
  9. jselevan

    jselevan Formula 3

    Nov 2, 2003
    1,873
    #9 jselevan, Nov 1, 2008
    The dreaded Koni shock knock?

    Jim S.
     
  10. raptr

    raptr Karting

    Jan 22, 2007
    86
    #10 raptr, Nov 1, 2008
    My Boxer makes this sound even with the A/C off.It's a long shot,but you could try letting the car idle for awhile-hood up-stick your head in there and simply listen for the sound.In my case that's what I did and that's how I isolated the source.
    -raptr
     
  11. ferrariblex

    ferrariblex Karting

    Sep 28, 2005
    117
    Madison, WI
    Full Name:
    Brandon Blexrude
    #11 ferrariblex, Nov 1, 2008
    A friend's 90 TR was making a clicking sound like the one you are describing, which went away after changing the differential fluid.
     
  12. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #12 Mr.Chairman, Nov 1, 2008
    Have to rule that out. That was done recently... Just had the clutch done too but the ping was there prior to clutch replacement.

    R
     
  13. Shemmer

    Shemmer Formula Junior

    Jul 8, 2007
    623
    Toronto
    Full Name:
    Rob
    #13 Shemmer, Nov 2, 2008
    Wow I hear the exact same noise under the exact same conditions on the exact same year car like a tiny click coming from the outside left rear, almost sounds like it's coming from the rear brake pad seating or the caliper clicking.
    Will be following this thread closely.
     
  14. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #14 Mr.Chairman, Nov 2, 2008
    YES..... exactly.. it sounds so close to the outer edge of the wheel or suspension. I was not thinking brakes but at this point cannot rule anything out. Let me know if you find anything.. I will advise on any findings as well..

    Robbie
     
  15. Shamile

    Shamile F1 Veteran

    Dec 31, 2002
    6,712
    Lakeland FL
    Full Name:
    Shamile
    #15 Shamile, Nov 2, 2008
    Dear Ferraristi,

    Hi Chairman


    I've had a few "clicks" from my TR over the years. Here's what I've found.

    Since by accelerating then letting off, this is load / unload situation. Perhaps in the suspension or motor mount. I once had a problem with a parking brake pad (inside rear rotor ) come off its retaining spring and would click at first with the loading and unloading of the suspension....then became a drone.

    Had a bad rear bearing once....started as a click click....but was a consistent click.

    With the load/unload of the accelerator, your accessory belts bounce with it. I had a coolant drip from the main hose from the thermostat housing that crosses to the center of the top of the engine. A couple of drips of coolant was constantly being dropped on the accessory belts and would make a scary click for a few seconds than go away. I actually thought it was a valve issue....took forever to find the problem....thanfully just tightening the hose clamps and washing the accessory belt area with simple green solved that problem.

    Check your parking brake cables and other lines for rubbing. Also check for loose bolts and flanges. With a bolt holding down a piece of metal looking tight but loose would make a click with the load / unload situation.

    Check your aluminum coolant lines running to the top of the LH radiator. It passes underneath and very close to part of the tube frame....not rubbing?

    Let us know what it turns out to be....and what it wasn't :)


    Shamile

    Freeze...Miami Vice !
     
  16. Shamile

    Shamile F1 Veteran

    Dec 31, 2002
    6,712
    Lakeland FL
    Full Name:
    Shamile
    #16 Shamile, Nov 2, 2008
    ....oh yeah,

    Check your brake pads. One of the retaining pins may have broken or come loose. Perhaps you have an errand pad.

    Check the parking brake line to rear of the hub. Pull it and make sure it hasn't come off the mechanical actuator.

    Shamile

    Freeze...Miami Vice!
     
  17. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #17 Mr.Chairman, Nov 2, 2008
    Thanks boys... I will check out on Monday evening and report my findings..

    R

    Shamile... thanks for the info.. I think your on the right track with this...

    Robbie
     
  18. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #18 Mr.Chairman, Nov 8, 2008
    Finally got some time today to jack her up and take the wheel off.. Here is what I see.. Suspension appears to be o.k.. All nuts tight.. Alot are rusted and bushing appear to be dry cracked around the edges.. I think I am going to change bushings, nuts, and bolts in the future. Brake line connectors also very rusted and rubber lines feel super hard. I have a very strong feeling that the noise is coming from behind the rotor were the parking brake pads sit. I am not too familiar with removing calipers and brake disc so I opted to stop.. Axle also seems o.k. as well as boot clamps. Suspension appears intact just some rusted bolt etc.. No clicking sound on bumps so its safe to say that even thought the suspension nuts and hardware are pretty rusted and the bushing in the future are in need of repair - everything is tight.. It has to be in the parking brake pad area. Everything pertaining to the parking brake pads (hardware) is pretty cheap so this should not be a major cost. I was happy to see my brake pads and calipers are in good shape - no leaks.. The rust is disturbing on the suspension hardware especially the upper shock mounts.. I think it time to invest in a sand blaster, take the suspension pieces - blast, refinish and replace rusted hardware.. A great winter project.

    Robbie
     
  19. Dr_ferrari

    Dr_ferrari Formula 3
    Consultant Professional Ferrari Technician

    Nov 2, 2003
    1,071
    Pocono Sportscar
    Full Name:
    Jim McGee
    #19 Dr_ferrari, Nov 8, 2008
    Could be the brake shoes behind the rotors, maybe the linkage.

    Also could be the suspension, you said it was tight but did you put a wrench on all the suspension mounting points?

    No play in the wheel bearing?

    how do the axle shafts feel, possible too much play in them or loose axle mounting bolts? or even the flange going into the gearbox? funny how it happens under load.

    Let me know if you need anything.

    Best regards, Jim
     
  20. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #20 Mr.Chairman, Nov 8, 2008
    Hi Jim... I need you on this one. I really think its behind the rotor. It does not sound like the usual suspension clicking sound. It sounds so far out to the edge of the wheel.. Its almost like a hardware ping vs. a click. How have you been? Are you busy? I was hoping we could check this out on a Friday afternoon or Saturday.. PM me with what your schedule looks like.

    Be well

    Robbie
     
  21. KENCO

    KENCO Formula 3

    Nov 1, 2006
    2,396
    FL
    Full Name:
    KJG
    #21 KENCO, Nov 8, 2008
    Small dwarf or troll behind the front caliper. Common TR problem..........
     

Share This Page