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 02-16-2010, 09:06 PM
Registered User
 
Join Date: Oct 2009
Posts: 105
Angry 300SD Transmission Won't Engage

Ok, so I completed hooking everything back up today. I was so excited to put the car in reverse and turn it around in the driveway. The only problem is, when I put the car in gear (any gear) nothing happens. Hmmm. I'm not to familiar with MB transmissions. The transmission worked fine with the original engine (before the thrown rod), so I fail to see why it should not function now. The only two things I did to the transmission were replace the filter and remove the torque converter. I suspect that maybe I did not get the filter on correctly, but don't know for sure. As far as the torque converter, I know it has the two fingers that stick into the pump, and the converter did go all the way in and turned freely (no binding), so I think that's ok. I don't think it would have went back together otherwise. Any advice from someone with MB tranny experience? I'm going to drain the fluid and drop the pan tomorrow to double check the filter, but beyond that I'm stumped.

Nick

Reply With Quote
  #2  
Old 02-16-2010, 09:23 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,851
Did you check to make sure that the linkage from the shifter to the transmission is hooked up and doesn't have any loose, missing, or broken parts?
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
Reply With Quote
  #3  
Old 02-16-2010, 09:36 PM
Registered User
 
Join Date: Oct 2009
Posts: 105
Quote:
Originally Posted by Skippy View Post
Did you check to make sure that the linkage from the shifter to the transmission is hooked up and doesn't have any loose, missing, or broken parts?
Yeah--the linkage appears to be fine. The car will not crank in any of the gears but will in P and N, so as far as I know that part is ok.
Reply With Quote
  #4  
Old 02-16-2010, 09:38 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,851
How's the fluid level?
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
Reply With Quote
  #5  
Old 02-16-2010, 09:38 PM
Registered User
 
Join Date: Oct 2009
Posts: 105
My other question though---I was going about 40-50 MPH when the engine threw the rod (seizing the crank) could this have damaged the transmission?
Reply With Quote
  #6  
Old 02-16-2010, 09:44 PM
Registered User
 
Join Date: Oct 2009
Posts: 105
Quote:
Originally Posted by Skippy View Post
How's the fluid level?
Fluid registers full. I'm really at a loss. I hope nothing happened to it when the engine threw the rod.
Reply With Quote
  #7  
Old 02-16-2010, 10:56 PM
Registered User
 
Join Date: Mar 2005
Posts: 335
Quote:
Originally Posted by Scruffyguy1981 View Post
Fluid registers full. I'm really at a loss. I hope nothing happened to it when the engine threw the rod.
How are you checking the fluid? I don't mean to underestimate your abilities, but I don't see any other obvious reasons for your problem.

By the way I am a Nick from Salt Lake also!!
__________________
1998 E320 150,000
1980 300SD 240,000
1965 190D 79,000
Reply With Quote
  #8  
Old 02-16-2010, 11:06 PM
Registered User
 
Join Date: Oct 2009
Posts: 105
Quote:
Originally Posted by nckmsn View Post
How are you checking the fluid? I don't mean to underestimate your abilities, but I don't see any other obvious reasons for your problem.

By the way I am a Nick from Salt Lake also!!
In park, level ground, engine running (my 450sl is that way so couldn't imagine mb did anything weird on the sd, but then again it is mb ). I'm a diesel mechanic by trade, this is following a complete tear down and rebuild of the engine. I wasn't expecting anything weird with the tranny as it worked fine before the last engine came apart.
Reply With Quote
  #9  
Old 02-16-2010, 11:06 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,851
Quote:
Originally Posted by Scruffyguy1981 View Post
My other question though---I was going about 40-50 MPH when the engine threw the rod (seizing the crank) could this have damaged the transmission?
I don't know. The torque converter may have been able to soak up the difference in speed without anything getting damaged, but then again, maybe not. How did the old fluid look when you drained it?
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
Reply With Quote
  #10  
Old 02-16-2010, 11:09 PM
Registered User
 
Join Date: Oct 2009
Posts: 105
Quote:
Originally Posted by Skippy View Post
I don't know. The torque converter may have been able to soak up the difference in speed without anything getting damaged, but then again, maybe not. How did the old fluid look when you drained it?
Looked and smelled fine. Nothing out of the ordinary in the pan.
Reply With Quote
  #11  
Old 02-16-2010, 11:09 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,851
Quote:
Originally Posted by Scruffyguy1981 View Post
In park, level ground, engine running (my 450sl is that way so couldn't imagine mb did anything weird on the sd, but then again it is mb ).
Yup, that's the right way.
Quote:
I'm a diesel mechanic by trade
Cool, me too. I was trained by the U.S. Navy. Where did you learn the trade?
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
Reply With Quote
  #12  
Old 02-16-2010, 11:11 PM
Registered User
 
Join Date: Oct 2009
Posts: 105
Quote:
Originally Posted by Skippy View Post
Yup, that's the right way.


Cool, me too. I was trained by the U.S. Navy. Where did you learn the trade?
Nothing so elaborate for me , just the community college here.
Reply With Quote
  #13  
Old 02-16-2010, 11:24 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,851
Quote:
Originally Posted by Scruffyguy1981 View Post
Nothing so elaborate for me , just the community college here.
You probably got a better education than me. My school was only 14 weeks long and concentrated on the obsolete equipment the Seabees were using at the time (2001). But hey, if anybody has a two-stroke Detroit that needs work, I'm on it. I only started working on electronic diesels last year.

Back to topic: I think your initial theory about the filter maybe not being in right is a likely suspect. If it isn't that, then I can only guess that something did get damaged when the engine seized. Maybe a flex disc failed?
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
Reply With Quote
  #14  
Old 02-16-2010, 11:33 PM
Registered User
 
Join Date: Oct 2009
Posts: 105
Quote:
Originally Posted by Skippy View Post
You probably got a better education than me. My school was only 14 weeks long and concentrated on the obsolete equipment the Seabees were using at the time (2001). But hey, if anybody has a two-stroke Detroit that needs work, I'm on it. I only started working on electronic diesels last year.

Back to topic: I think your initial theory about the filter maybe not being in right is a likely suspect. If it isn't that, then I can only guess that something did get damaged when the engine seized. Maybe a flex disc failed?
Nice--Ive played with anything from a Duetz air cooled, DD two stroke, DD Series 60, Cat, etc etc. Our program is two years (sometimes I think that's still not enough, seems a little rushed)

No, the flex discs are perfect. As a matter of fact they are brand new. (old ones were cracked so replaced as a pm)

On another thought ( although I don't think so) I put synthetic fluid in it. I don't believe this to be the problem (other members have used M1 synthetic with no issues), but just covering the things I did change. It states compatible with Dexron applications, but manufactures have been known to lie before .
Reply With Quote
  #15  
Old 02-16-2010, 11:45 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,851
I don't have experience with synthetic ATF, so I'll leave that one alone.

I've spent enough time in front of a computer today. I'll check this thread tomorrow.

__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
Reply With Quote
Reply

Bookmarks


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




All times are GMT -4. The time now is 10:40 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page