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
  #76  
Old 05-02-2018, 08:54 AM
bentrod's Avatar
Registered User
 
Join Date: Jan 2016
Posts: 155
Quote:
Originally Posted by Mxfrank View Post
What's the temperature of the cannister? Unless your oil is running hotter than your coolant, the thermostat may never open.
I don't have a oil temp gauge installed but every single MB diesel that I have had with an oil cooler it would always work, after a sufficient fully warmed up drive.
I'm saying "it works" by feeling the hoses and the cooler itself. The side/tank of the cooler where the oil enters is "damn hot" and the opposite side would be "much cooler but still warm".
In this 300SDL in question the oil cooler and both its hoses are 100% outside temperature.
__________________
---------------------------------
87 300SDL
87 190D 2.5NA 5sp
90 300GD with 606 turbo!
08 GL320 CDI
12 ML350 Bluetec
---------------------------------
Past rides:
82 300SD - the one that started it all!
81 240D
87 300SDL - the first one.
92 300D 2.5 Turbo
99 E300 Turbodiesel
07 E320 Bluetec
12 S350 Bluetec
Reply With Quote
  #77  
Old 05-02-2018, 09:00 AM
Registered User
 
Join Date: Dec 2006
Posts: 2,996
Just install a thermo strip on the outside of the canister. Pop the hood after a run and see what the temperature is. If you're not getting more than 195F, then there isn't a problem.

CoolCat Express Corp.: LCD Thermometers 194F-248F (90C-120C)
Reply With Quote
  #78  
Old 05-02-2018, 11:29 AM
vwnate1's Avatar
Diesel Dandy
 
Join Date: Nov 2005
Location: Sunny So. Cal. !
Posts: 3,534
Question On Topic Q. ?

Looking at the diagram, # 287 is a back flow check valve .

? Does this ever wear out or is it not included on 616 engines ? .

I ask because my 1982 240D's oil pressure always takes longer to come up than does any 617 I've had and I wondered if maybe the oil is draining back into the sump......

? Thoughts ? .
__________________
-Nate
1982 240D creampuff 370,000 miles
1978 300CD back from the dead&1980 300CD ~ SOLD
1984 300CD KEEPER ! 430,XXX miles
1984 Euro 300TD Fully optioned SWMBO's
1974 350SLC 4 speed stickshift SOLD & missed
Krazy Kommie Ural Motos (3)
BMW Moto R60/6 Barn Find, 8,000miles
1959 VW #113 Deuxe Beetle, 36hp engine, stock
Junk, Rust, Arthritis, Crushed Spine,Broken Neck&Back
Memories &Peace Of Mind
Reply With Quote
  #79  
Old 05-02-2018, 12:24 PM
Diseasel300's Avatar
Registered User
 
Join Date: May 2016
Location: Texas Hill Country
Posts: 4,131
Quote:
Originally Posted by bentrod View Post
I don't have a oil temp gauge installed but every single MB diesel that I have had with an oil cooler it would always work, after a sufficient fully warmed up drive.
I'm saying "it works" by feeling the hoses and the cooler itself. The side/tank of the cooler where the oil enters is "damn hot" and the opposite side would be "much cooler but still warm".
In this 300SDL in question the oil cooler and both its hoses are 100% outside temperature.
My SDL's oil cooler function depends heavily on driving style, ambient temps, and length of drive.

In cooler weather, or weather that doesn't require A/C, the cooler lines never get hot unless the car has been on the highway for a while.

Hot weather, or heavy A/C usage will get them hot after ~20 min drive with mixed city/highway driving. Longer if all city.

My point is that if the cooling system is healthy, it may take a while for the cooler thermostat to open up. As mentioned above, the oil temps have to be far hotter than the engine coolant temp for the thermostat to open. 8+ quarts of oil and a relatively strong cooling system mean it's gonna take a lot of heat before the oil gets to those kinds of temperatures. Remember that the head and oil sump are aluminum and will cool the oil significantly better than steel or iron will.

Go romp on it hard on a hot day with the A/C on for >30 mins and see if the lines get hot. If they don't, then you should consider working on the oil thermostat.
__________________
'11 Honda Accord EX - "The Daily" 64K
'83 500SL Euro - "The Money Pit" 116K
'86 300SDL - "The Diseasel" 186K
The Diseasel Thread - Everything You Didn't Know You Wanted To Know
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 04:49 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, 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