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Author
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Topic: Traction Lock Noise
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-02-2001 01:16 PM
   
I put a professionally rebuilt 9" 3.50 traction lock differential in my car a few months ago and it has made a whining humming noise ever since. At high speeds it's not really noticeable but at slower speeds (speeding up/slowing down) it's more noticeable. Is this normal ? I used the friction modifier. I never noticed this noise with the old open differential I had. All I could hear then was the tranny making kind of a whining noise.
Could it be the 4speed making the whirring noise ?
Is all this normal ??
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67convertible 289/auto
65fastback 302/4sp
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steve'66
Gearhead Posts: 8796
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 10-02-2001 07:29 PM
Robert,Doesn't sound like the gears were set up correctly. Trannys can whine too, is the sound coming from the rear or the middle of the car? SteveW
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kcode
Gearhead Posts: 3019
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99
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posted 10-02-2001 09:58 PM
Robert,
Put your car up on secure jack stands and run it through the gears, have a helper try to isolate where the whine is coming from.Mike
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-03-2001 08:05 AM
It sounds like the noise is definitely coming from the rear of the car. I installed new rear wheel bearings when I installed the new differential. Could something be wrong with one of the bearings ?
Mike,
Maybe I could drive it up to Bowling Green and let you listen to it ?
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67convertible 289/auto
65fastback 302/4sp
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Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
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posted 10-06-2001 12:33 AM
Robert, I would almost have to concur that the back lash in the ring and pinion is not correct and the fault would lie with the party that set up the rear end. An easy check is to jack up the rear of the car and see how much you can turn the drive shaft back to back. This will give you some indication as to how much play there is. Also....how is the oil consumption doing?  ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-08-2001 08:05 AM
The oil consumption is still there. Unless you have another trick (like dishwashing soap) It looks like I'll have to re-ring it.------------------
67convertible 289/auto
65fastback 302/4sp
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Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
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posted 10-08-2001 02:29 PM
How many miles total Robert since you added the detergent? ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-08-2001 02:33 PM
I've got about 1500 miles on it using the ND type oil and it still uses just as much as it ever did. I have NOT tried the detergent/soap trick.
Is that what you recommend next ?
Exactly how do I go about this process ?
Doesn't detergent put more wear on other engine components as well ?------------------
67convertible 289/auto
65fastback 302/4sp
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Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
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posted 10-09-2001 12:45 AM
Drain the oil and replace the filter. 5 quarts of ND 20 wt and one 16 oz bottle of Palmolive (or your favorite) dish washing liquid. Run it for about 200 miles then drain and replace with 10 w 40 high grade. ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-09-2001 08:17 AM
What will that do to things like bearings, camshaft, valves etc. ???Have you had success with this in the past ?
I'm scared, very scared!!!  ------------------
67convertible 289/auto
65fastback 302/4sp
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Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
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posted 10-10-2001 01:34 PM
I have done it several times Robert. At least 30 or 40 over the years. 90% success rate. It will NOT hurt ANYTHING. All we are trying to accomplish is a little deglazing of the cylinder walls. It will not cure worn out rings although I do have a temporary trick for that also. ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-11-2001 08:02 AM
OK, I'm gonna try it !
I just won't let any of the neighbors see me putting dishwashing liquid in my engine.
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67convertible 289/auto
65fastback 302/4sp
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-15-2001 08:04 AM
I followed the dishwashing soap instructions and drove the car the 200 miles yesterday. My wife asked me if we were going to see soap suds coming from under the hood. 
I brought if back home and changed the oil.
I won't know if that fixed it until I can drive it several hundred more miles.One thing that I did notice (don't ask me why I never noticed it the other thousand times I've checked the engine) is that I do NOT have any baffles on the valve covers. They are the chrome tall Moroso valve covers.
Is it possible that all that oil is being sucked by the PCV valve then burned? My PCV is connected to the base of the carburetor. Previously it's been using about a quart every 350 miles or so. If this is not THE problem, could it seriously be adding to the problem ?....Alex ???
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67convertible 289/auto
65fastback 302/4sp
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-17-2001 07:57 AM
So does anyone think that not having the baffles in the valve covers could contribute to high oil consumption ?------------------
67convertible 289/auto
65fastback 302/4sp
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SteveLaRiviere
Administrator Posts: 42859
From: Saco, Maine
Registered: May 99
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posted 10-17-2001 08:23 AM
Yes, definitely.------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC Be American, Drive American!
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Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
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posted 10-17-2001 04:35 PM
ABSOLUTLY ROBERT! You could have been sucking out all of that oil! ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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Robert K
Gearhead Posts: 630
From: Nashville, TN
Registered: Apr 2000
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posted 10-17-2001 05:09 PM
So what did I hurt by running dishwashing liquid thru my engine if it didn't really need it ? How much extra wear did I put on it ?------------------
67convertible 289/auto
65fastback 302/4sp
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JAAZZY
Gearhead Posts: 776
From: Bay Area, CA
Registered: Apr 2001
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posted 10-17-2001 05:49 PM
If you think that was bad wait until he tells you that you need to use a pressure washer to get it out!  BTW, I don't have a baffle and mine sucks oil in from there as well. If you look under my posts kcode gave me an idea on how to make one from sheetmetal. quote:
Originally posted by Robert K:
So what did I hurt by running dishwashing liquid thru my engine if it didn't really need it ? How much extra wear did I put on it ?
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Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
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posted 10-18-2001 09:47 AM
Robert, you didn't hurt a thing. You maybe took an extra half thou off of your cylinder walls, MAYBE???? Your car should run better than ever now. ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
IP: Logged |
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