Author Topic: Getting rid of the groan  (Read 2895 times)

dldubois

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Getting rid of the groan
« on: December 27, 2020, 16:30:37 »
Just drove my car 275 miles from Ft laudedale area to Sarasota FL.   Reminded of this damn squeaking / groaning.  All shocks replaced relatively recently.   Everything that I could use silicone on I have.    Had to rebuild steering pump a couple months ago and mechanic came up blank.   1969/ 3rd owner,   Only 88k.   Got a 275 mile drive later today %uD83D%uDE0E

Could it bushings between unibody and suspension?  Seems like it%u2019s under me to right behind back seat.   Any ideas?

Thank you and happy new year
Dana DuBois
1969 280sl
Pembroke Pines, FL

Alex D

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Re: Getting rid of the groan
« Reply #1 on: December 27, 2020, 17:09:47 »
Hi Dana,

I also have the squeaking in back. When ever I start to slow down to stop sign or traffic light under 20mph, I hear a squeaking sound, not a braking  issue as it happens when slowing down with or without braking.  Also squeaks when I start to accelerate from slowing down, but once get above 20mph there is no squeaking. I've been told it could be suspension related probably rear trail arm bushings, which I plan on replacing before spring sometime. Please let me know if discover another possibilities.

Thanks,
Alex
Alex D
1967 250 SL
Original 140K mi
181 Light Beige, with  112 Turquoise Interior

cfm65@me.com

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Re: Getting rid of the groan
« Reply #2 on: December 28, 2020, 13:42:46 »
Hi Guys,
Please let me know if you find it. I have the same problem in my E Type, drives me crazeeeeeeee. 😰😰😰😰.
Happy New Year,
Chris🤗
28 Ford Model A Pickup
29 Chevy Phaeton
67 E Type FHC
67 250SL 5 speed
83 911SC
2015 VW T5 California Pop Top

dldubois

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Re: Getting rid of the groan
« Reply #3 on: December 29, 2020, 18:35:09 »
Alex,

That's pretty much mine.       It's SOOOOOOOOOO damn annoying though.     I live in FL so even drove the car to work today but I can't go much longer without figuring it out.   
Dana DuBois
1969 280sl
Pembroke Pines, FL

FGN59

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Re: Getting rid of the groan
« Reply #4 on: December 29, 2020, 18:51:09 »
One of us posted a possible solution in a parallel thread:

https://www.sl113.org/forums/index.php?topic=32398.0  ;D
« Last Edit: January 08, 2021, 12:03:21 by FGN59 »
François

1994 Toyota Land Cruiser SW HDJ80 4.2L diesel
sold:
1969 280SL US specs, 4-speed manual, beige-grey (726H), parchment leather
1962 Jaguar MK2 3.8L (4.2L XJ6 engine), black, tan leather interior
1968 Peugeot 204 roadster, white, black interior
1955 Massey Ferguson TEF20 diesel tractor 😁

Alex D

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Re: Getting rid of the groan
« Reply #5 on: December 29, 2020, 20:43:16 »
I spoke to Shvegel earlier today about the squeaking, he said that it could also be the rear brake pads. Something to else to look at. 
Alex D
1967 250 SL
Original 140K mi
181 Light Beige, with  112 Turquoise Interior

dldubois

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The groan is gone!
« Reply #6 on: January 08, 2021, 03:35:35 »
Yep, rear axle flex mount metal on metal.   Some great detail in this forum for fix!  Wow, been years of groan....
Dana DuBois
1969 280sl
Pembroke Pines, FL

ja17

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Re: Getting rid of the groan
« Reply #7 on: January 08, 2021, 06:40:05 »
Seemed like they never went bad for the first 40 years, now most are going bad and need to be changed.
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

dldubois

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Re: Getting rid of the groan
« Reply #8 on: January 11, 2021, 22:27:02 »
Joe,

Pretty sure when it was starting to go around the time I went to PUB in 2011.     Sure glad to have sorted.
Dana DuBois
1969 280sl
Pembroke Pines, FL