Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-29-2005, 10:04 PM
ForcedInduction
Guest
 
Posts: n/a
300TD SLS pump removal and suspension conversion

Well, sad to say it but...

I've decided to use my 300TD as a donor for my 240D insted of selling her as a whole. In the last month the SLS has been very sluggish and will not raise the rear even though it returns fluid back to the tank.

Insted of rebuilding the $complete$ list of everything I need, (Flush the system, rebuild leveling valve, fix BIG high pressure line leak, and new accumulators) I decided to convert to a standard suspension.

For all of this, I'm going to remove almost everything SLS related. (Shameless Plug: I'll be selling a SLS pump and tank separate for those who need one. )

Air shocks will be used in the place of the struts and I'm still debating if I should replace the springs with sedan springs. Does anybody know if they are the same?

Pictures to come this saturday!
Reply With Quote
  #2  
Old 04-29-2005, 11:12 PM
Benzcrusher's Avatar
Registered User
 
Join Date: Jan 2004
Location: Upstate SC
Posts: 1,114
Do a search, I did a thread on this a year ago. I bought coil-over shocks from Strut-masters.... I replaced the springs with sedan springs because the sedan spring are 10mm taller (woooo), but they are thinner gauge...(benefit most likely a wash) I did some rigging to make the shock ends fit under the cargo area trim panel and I have driven the wagon about 1,110 miles so far.
My findings: a little bouncy and the rear will bottom out when you hit big pot holes or take RR crossings at speed. I managed to sell the used suspension parts for about the same price of the coil-overs, about $300.


Now I have a much better TD with a properly working rear suspension, the ride in the newer wagon is much better....

I'll be putting Rudolph up for sale soon as Brutus is my new restoration project.... I might be interested in some of your suspension parts...
__________________
"Shabby" 1978 240D with a 300D motor
1997 Volvo 960 wagon 245K
Reply With Quote
  #3  
Old 04-29-2005, 11:15 PM
R Leo's Avatar
Stella!
 
Join Date: Mar 2003
Location: En te l'eau Rant
Posts: 5,390
Quote:
Originally Posted by 82-300td
I should replace the springs with sedan springs. Does anybody know if they are the same?

Pictures to come this saturday!
Lance,
Look at this thread, it has the various spring lengths listed: SLS Replacement thread
__________________
Never a dull moment at Berry Hill Farm.
Reply With Quote
  #4  
Old 04-29-2005, 11:18 PM
Benzcrusher's Avatar
Registered User
 
Join Date: Jan 2004
Location: Upstate SC
Posts: 1,114
here it is..

86ing the hydraulic rear suspension
__________________
"Shabby" 1978 240D with a 300D motor
1997 Volvo 960 wagon 245K
Reply With Quote
  #5  
Old 04-30-2005, 12:08 AM
Registered User
 
Join Date: Apr 2005
Location: Pac NW
Posts: 690
I just did this not too long ago. Used sedan springs and HD Bilsteins. You folks who've also removed SLS, what did you do about the pump? I mean, how did you cover the hole for the shaft on the head?

Thanks,
Jay.
Reply With Quote
  #6  
Old 04-30-2005, 02:36 PM
ForcedInduction
Guest
 
Posts: n/a
I just pulled the pump last night. There is nothing amazing about it, just a simple 4 piston radial self-priming pump. The drive shaft is held in the head with a snap-ring so leaving off the pump won't kill anything. A simple aluminium plate was made and installed over the port.

After running around town today I had no problems other than a very saggy rear-end.

Today: Removing the tank and most lines.
Attached Thumbnails
300TD SLS pump removal and suspension conversion-apump-installed.jpg   300TD SLS pump removal and suspension conversion-bpump-port-head.jpg   300TD SLS pump removal and suspension conversion-cpump-drive.jpg   300TD SLS pump removal and suspension conversion-dpump-insides.jpg   300TD SLS pump removal and suspension conversion-epump-plate.jpg  

Reply With Quote
  #7  
Old 04-30-2005, 02:38 PM
ForcedInduction
Guest
 
Posts: n/a
The finished product. Just a little oil left to clean up from when I first pulled the pump off.
Attached Thumbnails
300TD SLS pump removal and suspension conversion-spump-sale.jpg   300TD SLS pump removal and suspension conversion-fhead-finished.jpg  
Reply With Quote
  #8  
Old 05-01-2005, 01:07 AM
Registered User
 
Join Date: Apr 2005
Location: Pac NW
Posts: 690
You're my hero!

Thanks for the pix. Looks so much better without the extra high-pressure hoses cluttering everything up! Can't wait to get that stuff off my motor. Next: the air conditioning!

Jay.
Reply With Quote
  #9  
Old 05-01-2005, 08:56 PM
Johnhef's Avatar
Senior Member
 
Join Date: Feb 2005
Location: Frederick, Md
Posts: 4,540
Not bad. MB actually has a plate to cover the hole, although I'm having a hell of a hard time trying to get one. My parts guys can't find it anywhere.

Anyone have the part number for it? It also came on crate 280 M110 engines...
__________________


1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350
Reply With Quote
  #10  
Old 05-03-2005, 10:56 AM
ForcedInduction
Guest
 
Posts: n/a
The tank and SLS valve are out. The tank and brackets are in good shape. It looks like a crack on the tank but somehow it does not leak.

The valve looks to be the reason my system would not respond anymore. Just a little too much wear on the plate to hold fluid from returning.

Next: Struts and accumulators.
Attached Thumbnails
300TD SLS pump removal and suspension conversion-engine-bay.jpg   300TD SLS pump removal and suspension conversion-tank-parts.jpg   300TD SLS pump removal and suspension conversion-sls-valve.jpg   300TD SLS pump removal and suspension conversion-sls-valve-apart.jpg   300TD SLS pump removal and suspension conversion-worn-valve.jpg  

Reply With Quote
  #11  
Old 05-08-2005, 04:25 PM
ForcedInduction
Guest
 
Posts: n/a
The struts are out and I'm working with a pair of air shocks to replace them. Both (Along with the rest of the underside) are a little dirty due to line leaks around the drivers side accumulator and engine oil blowing back. The struts don't leak and were (supposidly) replaced a few months before I bought the TD two years ago. (Another shameless plug: The pump, tank, and struts are sill for sale. Just make an offer.)

Once the drivers side strut came out after 30 minutes and I knew what it took, the passenger side was out in 5 minutes.

Next: Air ride

...and a cutting torch (I wish right now )

*edit* Slow going, the air shocks were too big to fit through the stock strut openings so I need to pull the springs. Looks like it won't be anywhere as easy as I had thought. But it seems like the TD has a chip on it's shoulder for me this weekend. The Prechambers were a PITA to get out, my battery was almost dead, the copression gauge didn't have an injector hole adaptor, and my right fog light is blown out.
Attached Thumbnails
300TD SLS pump removal and suspension conversion-sls-strut-sht.jpg   300TD SLS pump removal and suspension conversion-sls-strut-lng.jpg   300TD SLS pump removal and suspension conversion-sls-top-mount.jpg  

Last edited by 82-300td; 05-08-2005 at 09:12 PM.
Reply With Quote
  #12  
Old 05-13-2005, 06:57 PM
ForcedInduction
Guest
 
Posts: n/a
Well, the project it 98% complete. I just need to weld an additional beam to the plate to prevent bending and find the ideal PSI for the shocks.

I just used off the shelf air ahocks from Napa and welded a bracket to the trailing arms. At the top I just drilled a hole into the body, used a BIG fender washer to help the top mount, and cut the extra bolt length off. I'd like to have found some air shocks that would fit into the stock strut hole but none were in stock in Colorado.

After riding on them all this week I can say they are a FAR improvement over the stock struts (With blown accumulators) and safer than springs alone.

It finally rides like a 300D!

*edit* yes, I know my driver's side axle shaft boot is torn.
Attached Thumbnails
300TD SLS pump removal and suspension conversion-air-shock-box.jpg   300TD SLS pump removal and suspension conversion-shock-mounted.jpg   300TD SLS pump removal and suspension conversion-shock-mounted-side.jpg   300TD SLS pump removal and suspension conversion-shock-mountedl.jpg  
Reply With Quote
  #13  
Old 05-13-2005, 08:38 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,354
Suggest

adding support struts to your bracket.
Attached Thumbnails
300TD SLS pump removal and suspension conversion-shock-mountedl_2.jpg  
__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Prototype Vehicle build.
Prototype Fleet Durability
Prototype vehicle instrumentation.
Technical Quality Auditor.
Automotive Technical Writer

1973 300D
1973 309D - stolen
1978 280SE
1980 240D
1983 300D
1984 190D
Reply With Quote
  #14  
Old 05-13-2005, 08:43 PM
boneheaddoctor's Avatar
Senior Benz fanatic
 
Join Date: May 2004
Location: Hells half acre (Great Falls, Virginia)
Posts: 16,007
Quote:
Originally Posted by whunter
adding support struts to your bracket.
I agree...it needs some strengthening (triangulation) or its not going to last long.
__________________
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
Reply With Quote
  #15  
Old 05-13-2005, 10:10 PM
ForcedInduction
Guest
 
Posts: n/a
Quote:
Originally Posted by 82-300td
Well, the project it 98% complete. I just need to weld an additional beam to the plate to prevent bending and find the ideal PSI for the shocks.
I know, it's the first thing I plan to do this weekend before my starter switch.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Late Model 190e 16v SLS Removal (Already Searched) Uk Merc Man Tech Help 2 09-01-2004 04:55 AM
Removal of self levelling suspension pump 16V alexkor Tech Help 2 11-20-2002 02:16 AM
Euro suspension requires differential removal??? Gregg Tech Help 3 02-09-2001 07:35 PM
Hydraulic suspension removal Tom16v Tech Help 5 07-26-2000 10:56 AM
16V Rear Self-Leveling Suspension Removal Dan16V Mercedes-Benz Performance Paddock 15 05-22-2000 02:40 PM



All times are GMT -4. The time now is 04:24 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page