Author Topic: rear pinion bearing replacement??  (Read 3602 times)

erickmarciano

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rear pinion bearing replacement??
« on: July 31, 2007, 19:12:26 »
I got a deap noise on acceleration and desceleration from the diff and a little play at the diff . since I have the outer pignon bearing on hand can I try my luck and replace it with the diff still on the car?or do I have to do a compleate teardown?
thanks so much
Erick

2004 Volvo V70-R
1971 280sl
1962 VW bug
1971 Harley FLH
1962 gs160 vespa
1994 E500 W124
1971 280sl
1989 Porsche 930 coupe
1988 e30 m3
2001 ducati mh900
2006 ps1000
1962 Vespa GS160

ja17

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Re: rear pinion bearing replacement??
« Reply #1 on: August 02, 2007, 10:14:50 »
Erick,

You can replace the outer bearing. But do not over torque it. Making it too tight will cause a lot of noise. These tappered  bearings will bind if tightened too far. I sort of doubt that this will solve the problem.  Is it possible that someone in the past has overtightened the slotted pinion nut?

Joe Alexander
Blacklick, Ohio
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

erickmarciano

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Re: rear pinion bearing replacement??
« Reply #2 on: August 02, 2007, 12:59:40 »
thanks for the reply

don't know about the past . if the slotted pinion nut lose would I get some play when the prop shaft is turned berofe the diff starts to catch
hope I am clear

thanks again
Erick

2004 Volvo V70-R
1971 280sl
1962 VW bug
1971 Harley FLH
1962 gs160 vespa
1994 E500 W124
1971 280sl
1989 Porsche 930 coupe
1988 e30 m3
2001 ducati mh900
2006 ps1000
1962 Vespa GS160

jeffc280sl

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Re: rear pinion bearing replacement??
« Reply #3 on: August 02, 2007, 15:12:21 »
Here is a pic of the bearing.  

Download Attachment: pinion bearing.jpg
42.47 KB

Jeff C.
1970 280SL 4-speed

erickmarciano

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Re: rear pinion bearing replacement??
« Reply #4 on: August 02, 2007, 17:49:50 »
great pic . do i need a special puller for this job?

thanks

2004 Volvo V70-R
1971 280sl
1962 VW bug
1971 Harley FLH
1962 gs160 vespa
« Last Edit: August 04, 2007, 12:37:52 by erickmarciano »
1994 E500 W124
1971 280sl
1989 Porsche 930 coupe
1988 e30 m3
2001 ducati mh900
2006 ps1000
1962 Vespa GS160

jeffc280sl

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Re: rear pinion bearing replacement??
« Reply #5 on: August 04, 2007, 15:54:06 »
I've never removed one but since Joe says you can remove it from the front and the description says its a tapered bearing held in place by the slotted nut it should come out easily.  (I hope?)

Jeff C.
1970 280SL 4-speed