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
  #31  
Old 03-25-2008, 05:48 PM
winmutt's Avatar
85 300D 4spd+tow+h4
 
Join Date: Apr 2006
Location: Atl Gawga
Posts: 9,346
The benz u joint is only supposed to bend under acceleration, hence the lower RPM issues. After I dropped my trans 1/8" or so my problems went away. I could actually see the flex discs flexed when the car was on the jacks.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42
Reply With Quote
  #32  
Old 03-25-2008, 06:06 PM
lutzTD's Avatar
Registered User
 
Join Date: Oct 2006
Location: Lutz, Florida (N of Tampa)
Posts: 2,461
Quote:
Originally Posted by MTUpower View Post
You need this
this may help vibes a little, but I had the exact part on the back of my jeep t-case/manual and all it was for was to keep the gears from chattering when you shift. it is more of a flywheel than a dampener to keep the gear engaged and doesnt allow the shaft to move with each tooth pass, at least on the jeep. auto jeeps do not have it. when i changed my t-case on the jeep I removed it and I did have a lot more chatter and noise than before between gears. sounds like something MB would do. if it was meant to be a balance damper wouldnt it have a rubber ring in between the outside steel ring to absorb vibes?

edit... i see now maybe the triangular portion is rubber? if so maybe it does both.
__________________

1982 300CD Turbo (Otis, "ups & downs") parts for sale
2003 TJ with Hemi (to go anywhere, quickly) sold
2001 Excursion Powerstroke (to go dependably)
1970 Mustang 428SCJ (to go fast)
1962 Corvette LS1 (to go in style)
2001 Schwinn Grape Krate 10spd (if all else fails)

Last edited by lutzTD; 03-26-2008 at 09:32 AM.
Reply With Quote
  #33  
Old 03-26-2008, 08:51 AM
Bajaman's Avatar
Registered User
 
Join Date: Mar 2005
Location: Bern, Switzerland
Posts: 713
Quote:
Originally Posted by winmutt View Post
*cough* Doesn't that mean the transmission is not centered? Make sure it is centered and try putting some washers inbetween the frame in the mount to let the transmission hang down a bit more.
I'll look into this, I thought it looked pretty centered... how did you measure/mount yours?
__________________
For Sale: 1982 MB 300TD
1995 Chevrolet Suburban 6.5TD

Sold: 1980 IH Scout Traveler- Nissan SD33T Diesel
Reply With Quote
  #34  
Old 03-26-2008, 10:14 AM
winmutt's Avatar
85 300D 4spd+tow+h4
 
Join Date: Apr 2006
Location: Atl Gawga
Posts: 9,346
Quote:
Originally Posted by Bajaman View Post
I'll look into this, I thought it looked pretty centered... how did you measure/mount yours?
I had the OEM parts . Look at your flex disc. If it is flexing when not moving you have to much of an angle on the U joint. When I put those washers in the angle was decreased as well as the angle in the flex disc.
__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42
Reply With Quote
  #35  
Old 03-26-2008, 10:37 AM
Automch
 
Join Date: Aug 2006
Location: Anderson, SC
Posts: 93
Just a guess

I do not remember the setup on manual shift Benzs but most engines require a pilot bearing inserted in the end of the crankshaft to center the input shaft of the trans. With an automatic you have the hub of the torque converter in the same hole. No where in your posts did I notice the mentioning of a pilot bearing. Did you put one in? If it is not there the input shaft will not be held in proper alignment and will cause a vibration. It will also lead to premature input shaft bearing failure. HTH.
__________________
Retired
ASE Master Car / Light Truck
ASE Master Medium Heavy Truck
EVT Master Technician Ambulance
EVT Master Technician Fire Apparatus

"Without Fleet The Pride Doesn't Ride"

1983 300SD 609K + still going strong!
1970 Monte Carlo
1994 Ford F150
Reply With Quote
  #36  
Old 03-26-2008, 10:46 AM
Bajaman's Avatar
Registered User
 
Join Date: Mar 2005
Location: Bern, Switzerland
Posts: 713
Quote:
Originally Posted by automch View Post
I do not remember the setup on manual shift Benzs but most engines require a pilot bearing inserted in the end of the crankshaft to center the input shaft of the trans. With an automatic you have the hub of the torque converter in the same hole. No where in your posts did I notice the mentioning of a pilot bearing. Did you put one in? If it is not there the input shaft will not be held in proper alignment and will cause a vibration. It will also lead to premature input shaft bearing failure. HTH.
Yes, it's got one.
__________________
For Sale: 1982 MB 300TD
1995 Chevrolet Suburban 6.5TD

Sold: 1980 IH Scout Traveler- Nissan SD33T Diesel
Reply With Quote
  #37  
Old 03-26-2008, 10:50 AM
Stevo's Avatar
Registered User
 
Join Date: Apr 2002
Location: NW WA
Posts: 6,299
I'm sure you have this covered but, the tranny mount is not centered on the cross member (Left to Right) and could be turned around. The "big" holes face aft/the tranny sits more to the passenger side of center. Just a thought as I once got the cross member turned around.
__________________


1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"
Reply With Quote
  #38  
Old 04-03-2008, 09:35 PM
pizzachef's Avatar
Registered User
 
Join Date: Jan 2007
Location: New Cumberland, PA
Posts: 833
Slightly off topic, but why does the drive shaft from a manual transmission car have to be shortened when putting a manual into a car that used to have an automatic? Is the engine (from an auto) different from an engine with a manual?
__________________
1985 300TD-euro 352,000 mi
1974 240D (1?)52,000 mi - has a new home now
Reply With Quote
  #39  
Old 04-04-2008, 06:18 AM
ForcedInduction
Guest
 
Posts: n/a
The 5 cylinder engine is 4" longer than the 4-cylinder engine so the driveshaft has to be cut down to compensate for that difference.
Reply With Quote
  #40  
Old 04-05-2008, 10:05 PM
pizzachef's Avatar
Registered User
 
Join Date: Jan 2007
Location: New Cumberland, PA
Posts: 833
Oh, so to remove an automatic from a 240 and put in a manual would be a bolt in replacement then?
__________________
1985 300TD-euro 352,000 mi
1974 240D (1?)52,000 mi - has a new home now
Reply With Quote
  #41  
Old 04-05-2008, 10:11 PM
bgkast's Avatar
Rollin' on 16s
 
Join Date: Dec 2005
Location: Vancouver WA
Posts: 6,528
If you use the drive shaft from the manual 240D donor, yes.
__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine
Reply With Quote
  #42  
Old 04-06-2008, 12:13 AM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 38,610
I thought the manual and automatic trannies were different lengths. They were when we put a manual tranny in my 300cd. The ds had to be lengthened.

Tom W
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
Reply With Quote
  #43  
Old 04-06-2008, 04:09 PM
Registered User
 
Join Date: Nov 2003
Location: northern VT
Posts: 537
I have a drive line vibration on the wagon conversion I did as well.. it has to be the Ujoint.. OR that is my next attempt, just as soon as the ground dries out.. also i have had an engine vibration develop in the last thousand miles, which was not there last summer when the manual transmission was installed.. so I don't think it is an imbalance condition in the flywheel, but something else.. or that is what i Hope.
__________________
46 WDX Power Wagon

84 300TDT daily driver
Reply With Quote
  #44  
Old 04-07-2008, 08:15 AM
Bajaman's Avatar
Registered User
 
Join Date: Mar 2005
Location: Bern, Switzerland
Posts: 713
The auto tranny is indeed longer, by about 6"
__________________
For Sale: 1982 MB 300TD
1995 Chevrolet Suburban 6.5TD

Sold: 1980 IH Scout Traveler- Nissan SD33T Diesel
Reply With Quote
  #45  
Old 04-07-2008, 08:57 AM
DieselBone's Avatar
for the glory.....
 
Join Date: Dec 2004
Location: Mechanicsburg, Pennsylvania
Posts: 355
He meant the 240D manual shaft had to be shorten to work in a 300D.

Quote:
Originally Posted by t walgamuth View Post
I thought the manual and automatic trannies were different lengths. They were when we put a manual tranny in my 300cd. The ds had to be lengthened.

Tom W

__________________
-Randy Wakefield

1969 220D 4 speed (parts car)
1976 280C
1976 280S
1981 240D 4 speed (parts car)
1982 300D
1983 300TD (Ivory)
1983 300TD (gold)
1985 300TD (gray)
1987 190D 2.5
1970 280SEL (sold)
1977 240D 4 speed (sold)
1974 280 (rusted to death)
---
1927 Chevy 4 door sedan
1938 Chevy 2 door sedan
1950 Willys Jeepster
1955 Studebaker President 4 door
1977 Ford F250
1979 Glastron 17'
1948 John Deere A
1960 John Deere 2010
1979 Satoh S650G
--
2000 Bichon (Doby)
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




All times are GMT -4. The time now is 08:24 AM.


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