04-19-2018, 07:47 PM | #1 |
Member
Join Date: Jun 2010
Posts: 95
|
rear end noise
I am working on a model a rear end . If I turn the drive shaft back and forth there is a clonk. Any ideas on what this maybe ? steve
|
04-19-2018, 07:53 PM | #2 |
Senior Member
Join Date: May 2010
Location: Portland OR
Posts: 6,339
|
Re: rear end noise
If the drums are still on pull them off and check to see if brakes are hanging up. If there is a clunk and drums are off, time to pull and look inside.
__________________
I know the voices aren't real but damn they have some good ideas! |
Sponsored Links (Register now to hide all advertisements) |
|
04-19-2018, 08:05 PM | #3 |
Senior Member
Join Date: May 2010
Location: on the Littlefield
Posts: 6,140
|
Re: rear end noise
if there is no lubricant on the gears and backlash is on the high side it could just be the pinion tooth contacting the ring gear tooth
|
04-19-2018, 08:18 PM | #4 |
Member
Join Date: Jun 2010
Posts: 95
|
Re: rear end noise
drums and backing plates are off, no lube in rear, no broken teeth. Inside looks O.K. ????
|
04-20-2018, 09:11 PM | #5 |
Senior Member
Join Date: Dec 2014
Location: Santa Maria, CA
Posts: 984
|
Re: rear end noise
Does this have anything to do with eating baked beans? (Grin)
__________________
Alan 1929 Special Coupe 1941 Pick-Up 1955 Victoria |
04-20-2018, 11:46 PM | #6 |
Senior Member
Join Date: May 2010
Posts: 2,579
|
Re: rear end noise
Sponsored Links (Register now to hide all advertisements)
Last edited by Benson; 04-21-2018 at 05:46 AM. |
04-21-2018, 12:31 AM | #7 |
Senior Member
Join Date: May 2010
Location: Portland OR
Posts: 6,339
|
Re: rear end noise
Is this a fresh rebuild? If it's not, even drained there would or should be still some lube on the gears etc. How do you know the insides look ok? You cant see that much thru the fill hole. If a fresh rebuild, set to18- 20 INCH POUNDS preload, there might be a tick because there is some drag, but not a clonk.
__________________
I know the voices aren't real but damn they have some good ideas! |
04-21-2018, 05:39 AM | #8 |
Senior Member
Join Date: May 2010
Posts: 2,579
|
Re: rear end noise
...
|
04-21-2018, 08:03 AM | #9 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,011
|
Re: rear end noise
How far back and forth are you turning it? Just a smidge? Or 10 or 15°? Or?
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
04-23-2018, 09:00 AM | #10 |
Member
Join Date: Jun 2010
Posts: 95
|
Re: rear end noise
Just a smidge , back and forth. Took this apart and cleaned everything.
|
04-23-2018, 10:12 AM | #11 |
Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,774
|
Re: rear end noise
|
04-23-2018, 07:22 PM | #12 |
Member
Join Date: Jun 2010
Posts: 95
|
Re: rear end noise
I put it on the bench and began to inspect (when it was together) It had a little the play back and forth. From there I drain the oil ,very little in it,took it apart and inspected the internals. Everything looked good even wear on ring and pinion.that is where I am at this point. steve
|
04-25-2018, 12:05 PM | #13 | |
Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,774
|
Re: rear end noise
Quote:
|
|
04-25-2018, 07:35 PM | #14 |
Senior Member
Join Date: Nov 2010
Location: Anchorage, Alaska
Posts: 9,109
|
Re: rear end noise
__________________
Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
04-26-2018, 08:44 AM | #15 |
Senior Member
Join Date: May 2010
Location: St Charles , Missouri
Posts: 1,994
|
Re: rear end noise
Steve, If you have the original gaskets you can measure them with a caliper for reference noting what thickness was in what side, however , I would reset the preload using new gaskets anyway. It could have been off. You should have about .005 backlash on the pinion.
You will have to remove the pinion and driveshaft to set the bearing preload first before setting he tooth contact with the housing gaskets left and right. Good luck! Larry shepard |
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|