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 01-06-2008, 04:23 PM
Registered User
 
Join Date: Jul 2006
Posts: 47
Should I be able to turn the crank by hand in my OM617?

The glow plugs and injectors are in it. It's a used engine I bought about 18 months ago.

Today, I started back on my project. I needed to turn the crank to get to the torque converter bolts, and I was surprised it turned without a lot of force needed. I was only using a 1/2" ratchet on the front crankshaft bolt. I thought the high compression would be a problem.

Is this normal? Or did I buy a worn-out engine?

Thanks.


Last edited by Rather Diesel; 01-06-2008 at 04:25 PM. Reason: more info
Reply With Quote
  #2  
Old 01-06-2008, 04:30 PM
lietuviai's Avatar
Registered User
 
Join Date: Mar 2003
Location: SW WA
Posts: 5,744
A worn out engine would be easier to turn. They do take some effort to turn.
__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
Reply With Quote
  #3  
Old 01-06-2008, 04:36 PM
Jeremy5848's Avatar
Registered Biodiesel User
 
Join Date: Mar 2006
Location: Sonoma Wine Country
Posts: 8,402
When I turned the engine to get at the torque converter drain plug, I used a 1/2 inch drive 27mm socket on a standard ratchet handle, what, about a foot long? Finding a place to have the ratchet handle where I could get my hand on it was harder than turning -- it didn't take that much effort.

Jeremy
__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
Reply With Quote
  #4  
Old 01-06-2008, 04:52 PM
Registered User
 
Join Date: Jul 2006
Posts: 47
Quote:
Originally Posted by Jeremy5848 View Post
When I turned the engine to get at the torque converter drain plug, I used a 1/2 inch drive 27mm socket on a standard ratchet handle, what, about a foot long? Finding a place to have the ratchet handle where I could get my hand on it was harder than turning -- it didn't take that much effort.

Jeremy
Okay, that sounds good. I was turning the engine over OUTSIDE of the car with the same tool you used.

Roy
Reply With Quote
  #5  
Old 01-06-2008, 05:30 PM
Biodiesel300TD's Avatar
|3iodiesel300T|)
 
Join Date: Dec 2004
Location: Albany, OR
Posts: 4,845
Usually in my experience there are spots that are hard to turn and spots that are easy to turn. The hard spots are when the cylinders are on the compression stroke. If it's easy all the time, the compression is probably pretty low.

__________________
Andrew
'04 Jetta TDI Wagon
'82 300TD ~ Winnie ~ Sold
'77 300D ~ Sold
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 04:57 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