Author Topic: Compensation spring clearance  (Read 1915 times)

lagolag

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Compensation spring clearance
« on: September 15, 2022, 21:30:52 »
I have strange cracking sound from the rear and I can hear sound from rear springs.
I vent under the car to do the greasing of the rear axle and did notice that the compensation spring is in direct onto the front fuel tank bracket, see picture, and this creates sound when I pushed the car up and down.
Shouldn't there be a clearance? How big gap should it be?



 
230SL 1967 since July 2021
SL55 AMG 2003 since July 2008
Suzuki Cappuccino 1995 since May 2006, Sold

austinado16

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Re: Compensation spring clearance
« Reply #1 on: September 16, 2022, 00:36:22 »
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« Last Edit: September 18, 2022, 23:19:37 by Todd »

lagolag

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Re: Compensation spring clearance
« Reply #2 on: September 16, 2022, 22:18:34 »
Thanks for ideas.
The first thing I did this spring was to replace the center-mount and I also looked over the spring rubbers, the right lower was missing so installed a new one.
The sound from the rear was worse before I replaced the upper center-mount.
The rear greasing helped for a short while, probably the lower rubber mount to the vertical support is all warn, if that’s the case the center rear ought to fall down a bit to cause the center spring to ride on the tank bracket.
230SL 1967 since July 2021
SL55 AMG 2003 since July 2008
Suzuki Cappuccino 1995 since May 2006, Sold

getsmart

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Re: Compensation spring clearance
« Reply #3 on: October 23, 2022, 10:30:04 »
Hello,

It's possible that the carrier is out of adjustment.  If you see attached diagram the carrier is item 6 and adjusting this moves the diff forward or back. This might have a flow on affect though with drive shaft. Hope this helps....

Rgds, Joe
Finding the red car
1964 230sl Restoration Project

lagolag

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Re: Compensation spring clearance
« Reply #4 on: October 23, 2022, 22:04:45 »
Thanks Joe,
I think your suggestion is very valid
I have ordered the tube bearing (no5 in the picture) and when I replace the bearing, the package is lose so I can try to adjust the position a bit foreward, I also have to loosen the lock nut for the prop.shaft splines so it can be mowed.
Regards Lars
230SL 1967 since July 2021
SL55 AMG 2003 since July 2008
Suzuki Cappuccino 1995 since May 2006, Sold

getsmart

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Re: Compensation spring clearance
« Reply #5 on: October 24, 2022, 06:04:18 »
Hi Lars,

There's quite a bit of adjustment there so I think you'll be able to move it a cm at least and as you said the spline in the tailshaft will also have adjustment

Good luck let me know how it goes

Rgds, Joe
Finding the red car
1964 230sl Restoration Project

Benz Dr.

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Re: Compensation spring clearance
« Reply #6 on: October 24, 2022, 20:12:03 »
It can't be done properly with the axle in the car. You also need to set the vertical pin to 90 degrees which is impossible to do while installed.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

lagolag

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Re: Compensation spring clearance
« Reply #7 on: October 25, 2022, 16:17:35 »
I will give it a try as I also will replace the rear trailing arm bushings, front once are already replaced.
I will also replace the the prop. shaft as I will install a 5-speed Getrag gearbox and by that I believe that if everything is rather loose it ought to be adjusted slightly forward. I'll post back when it's done.
230SL 1967 since July 2021
SL55 AMG 2003 since July 2008
Suzuki Cappuccino 1995 since May 2006, Sold