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  •  » Noise from Throw Out Bearing.

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    3/21/2021 3:12 PM  #1

    Chaplin
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    Noise from Throw Out Bearing.

    Curious how much noise your throw out bearing makes?

    I've got a T-5 trans in my 65 and I am using a factory Ford throw out bearing with MS cable clutch and have the cable adjusted per the instructions.  The car has a grand total of 6 miles on it so far and when in neutral and idling, I can hear the throw out bearing turning against the clutch diaphragm. Once I push the clutch in, the bearing is totally silent.  There are no issues shifting at all.

    This is my first car with a T-5 and cable clutch, so I am curious if this is normal or an indication that there is something amiss with the brand new throw out bearing.

     

    3/21/2021 3:15 PM  #2

    MS
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    From: Canyon Lake, Texas
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    Re: Noise from Throw Out Bearing.

    Most are silent, but I had a brand new Ranger pickup where I could hear the bearing at idle.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/21/2021 3:22 PM  #3

    Chaplin
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    Re: Noise from Throw Out Bearing.

    Something to be concerned about or no? 

    I'd post a video so you can hear it, but can't figure out how to do it.

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    3/21/2021 4:02 PM  #4

    MS
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    Re: Noise from Throw Out Bearing.

    Is it noisy or just barely audible?   Are you sure it is correctly installed on the release arm?

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/21/2021 4:22 PM  #5

    Chaplin
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    Re: Noise from Throw Out Bearing.

    It is correct in the release arm, or at least it should be.  I've got a bore scope and I can stick in there to double check. It is audible, sort of like a whirring sound. I can email you a video that I took with my phone.

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    3/21/2021 4:34 PM  #6

    MS
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    Re: Noise from Throw Out Bearing.

    Whirring sound was what my truck sounded like from new. The one in my Mustang is silent.
    Email video to steve@mustangsteve.com

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/21/2021 4:41 PM  #7

    Chaplin
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    Re: Noise from Throw Out Bearing.

    Just sent it. File was too big to email, so it said it was going to go via mail drop on iCloud, whatever that means.

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    3/21/2021 7:12 PM  #8

    MS
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    Re: Noise from Throw Out Bearing.

    I listened to it.  I would install a new bearing and pilot bearing if it was mine. 
    Or just live with it and pray for improvement, but I would think improvement is unlikely.

    I do not think you are going to experience an imminent failure, just an annoying noise.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/21/2021 9:58 PM  #9

    Chaplin
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    Re: Noise from Throw Out Bearing.

    Thanks. Maybe I'll just "finish" it this spring/summer, live with the noise and then make it next winter's project. Or maybe I'll knock it out sooner if I'm feeling ambitious. 
    One step forward 2 steps back. PITA.

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    3/22/2021 1:06 AM  #10

    Toploader
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    Re: Noise from Throw Out Bearing.

    Whenever you do it, I would just automatically replace the clutch. This is a job you don't want to do again if you can help it.

    1964-1/2 D Code Coupe - 289 V8, 4 Speed Toploader, 3.00 ratio rear, Autolite 4100 Carb, 15" tires, Pertronix ignition
     

    3/22/2021 5:13 AM  #11

    TKOPerformance
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    Re: Noise from Throw Out Bearing.

    My question would be: what makes you sure its the throwout bearing?  Most times noise like you describe is pilot bearing/bushing related.  If its  a bushing I would swap it for a bearing.  They seem to give much less trouble.  If its all coming apart anyway I would probably replace everything as suggested. 
     

     

    3/22/2021 5:35 AM  #12

    Chaplin
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    Re: Noise from Throw Out Bearing.

    I do have a pilot bearing. Last night I actually was wondering if it might be the pilot bearing instead.  I assumed it was the t/o bearing just from the location/sound and the fact that it stops as soon as a little pressure is applied to the clutch pedal with the left foot.

    Today I will back the clutch adjustment all the way off so the t/o bearing is not contacting the pressure plate at all and see if I still get the same noise in neutral at idle. If the noise goes away, then I'll say t/o bearing. If the noise is still there, then I'll say pilot bearing.

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    3/22/2021 4:15 PM  #13

    Chaplin
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    Re: Noise from Throw Out Bearing.

    Well, I decided I am going to pull the trans and see what is going on. I dropped the exhaust and driveshaft today and will pick up a trans jack later this week and pull the trans. 

    I'm going to pull the trans first, but leave the bell on and see if I can get the clutch fork out of the bell housing without having to pull the bell housing. If I can do that and find an obvious problem with the t/o bearing, it will make it a much easier job than to drop the starter, the bell housing and possibly the headers too.

    If the t/o bearing shows no obvious issues, then I will dig deeper and pull all of it.

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    3/22/2021 4:26 PM  #14

    6sally6
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    Re: Noise from Throw Out Bearing.

    Why not just "back-off" a dab on the clutch adjustment to  relieve some pressure on the TO bearing?!
    Why does it 'need' to spin all the time?!
    6s6

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    3/22/2021 4:44 PM  #15

    Chaplin
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    Re: Noise from Throw Out Bearing.

    That's a good question. My only answer is that's the Ford designed it.

    But I did stick a bore scope in there today and I think something is definitely wrong with the t/o bearing. There were some small metal flakes floating around and part of the clutch fork looks pretty shiny, so something is amiss.

    Here are a couple terrible bore scope pics.





    whats a png file

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    3/22/2021 7:59 PM  #16

    MS
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    Re: Noise from Throw Out Bearing.

    6sally6 wrote:

    Why not just "back-off" a dab on the clutch adjustment to  relieve some pressure on the TO bearing?!
    Why does it 'need' to spin all the time?!
    6s6

     
    Because if you do that, the bearing will not move enough to release the clutch.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/23/2021 7:23 AM  #17

    Chaplin
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    Re: Noise from Throw Out Bearing.

    Can someone post the correct Ford part # for the T-5 t/o bearing with cable clutch and 302? 

    I am beginning to wonder if I don't have the wrong t/o bearing. I just checked the part # for the t/o bearing I used and I see it listed for different applications different places.

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    3/23/2021 11:59 AM  #18

    Chaplin
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    Re: Noise from Throw Out Bearing.

    Hmmm....thanks.  I used a F7ZZ-7548-AA

    Does anyone know if there is a difference between two or are they just alternate part #s?

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    3/23/2021 12:19 PM  #19

    TKOPerformance
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    Re: Noise from Throw Out Bearing.

    Its correct for the application.  It covers MANY applications, but its the same from the '80s up through the '00s including the Fox 5.0 applications.

     

    3/23/2021 12:36 PM  #20

    Chaplin
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    Re: Noise from Throw Out Bearing.

    When I bought the McLeod clutch kit, I bought 2 Ford t/o bearings. I used one of the Ford bearings instead of the McLeod t/o bearing that came with the clutch kit.

    I just went and looked at the McLeod t/o bearing and compared it to the other F7ZZ-7548-AA sitting on the shelf and there is a difference between the two.

    The Ford bearing has a vertical bar on the bearing that that the McLeod doesn't have. I wonder if this is the problem? 

    Here they are side by side. McLeod on the left, Ford on the right (sorry, I should have taken the Ford bearing out of the package but you can see the vertical bar that I'm talking about through the package).

    Edit: picture didn't work. Will trying posting it again.

    Last edited by Chaplin (3/23/2021 12:37 PM)

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    3/23/2021 12:38 PM  #21

    Chaplin
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    Re: Noise from Throw Out Bearing.

    And that vertical bar looks like it is what is all knicked up on my last bore scope pic posted above.

    Last edited by Chaplin (3/23/2021 12:41 PM)

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    3/23/2021 1:15 PM  #22

    TKOPerformance
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    Re: Noise from Throw Out Bearing.

    I love OEM parts too, but when parts come in a kit I'm always going to use those parts together.  Is this the cause of the issue?  Can't say, but I wouldn't rule it out.  Might be worth a call to McLeod.

     

    3/23/2021 2:04 PM  #23

    senzstang
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    Re: Noise from Throw Out Bearing.

    I just changed all this on my 82 when i put in the T5.  I used the FOMOCO based on all feedback.  There is a correct way to align that ridge on the clutch fork. I followed this video from LMR and have no issues. I don't know if it is the same for your 65 application.

    https://lmr.com/products/Mustang-Clutch-Fork-Installation
     

     

    3/23/2021 2:11 PM  #24

    Chaplin
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    Re: Noise from Throw Out Bearing.

    Thanks. I actually watched that video when I put it together and installed it the same way. Did your t/o bearing have the tear drop shape like the one in the video and my McLeod pictured above or was it like the Ford bearing pictured next to the McLeod in my pic?

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    3/23/2021 3:46 PM  #25

    Chaplin
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    Re: Noise from Throw Out Bearing.

    Well, I pulled the tranny and don't see anything obviously wrong. There a couple of small metal filings- almost looks like the bearing spun in the fork and shaved a little metal off of one or the other, but both look ok. The bearing turns smoothly by hand and appears to be installed correctly. Inside the bell is totally clean, with only some minor clutch dust.

    The needles in the pilot bearing also turn smoothly with a finger.


    Scratching my head now and wondering if the difference in the bearing is to blame.


    type swedish characters







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