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

LinkBack Thread Tools Display Modes
Old 03-28-2005, 11:27 PM
Coming back from burnout
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
Exclamation If an 87 300D had a cracked Head, wouldn't it still Start?

I am trying to help someone diagnose an engine on a 1987 300D that will not start. I havent seen the car physically. My first thought when he asked me was that it suffered a Cracked head.
A month before it failed a deer hit it and the water pump pulley was dented,
Just before the engine failed, it lost all coolant and the Temp Guage hit "0". The driver found a puddle of about 1 qt oil near the front passenger side of the engine.
My feeling is that perhaps the timing chain cover broke when the chain snapped. My theory is that if the head cracked, you might still be able to start the car, but if the chain or timing cover snapped you might lose chain functionality and the engine would not start at all.
Engine turns over but doesnt start.
Driver of this car uses the car at hi speeds and the chain wasnt serviced for at least 250K miles after he bought it at 50K miles, the chain may have had 340 K on it!
Could any chain last that long?
Reply With Quote
Old 03-28-2005, 11:40 PM
Hatterasguy's Avatar
Join Date: Nov 2002
Location: Milford, CT
Posts: 19,306
It should run just fine with a cracked head, except for coolant useage. You need to look at the car but the oil on the ground doesn't sound good. If the oil was changed a timing chain is capable of going 340k, but their will be some stretch in it.
2017 Chevy Silverado 1500 LTZ
2007 Tiara 3200

"No free man shall ever be debarred the use of arms. The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government."
-Thomas Jefferson
Reply With Quote
Old 03-29-2005, 09:30 AM
Registered User
Join Date: Sep 2003
Location: Manhattan, KS
Posts: 596
If the head was cracked badly enough it could have hydrolocked and done major damage to the internals. Don't know if that would absolutely prevent starting, but could be a factor.
Keep everything as simple as possible-but no simpler--Albert Einstein
Reply With Quote
Old 03-29-2005, 08:31 PM
Registered User
Join Date: Nov 2004
Location: Nova Scotia, Canada.
Posts: 6,510
Did he by chance have some type of insurance that covered the deer hit? Perhaps he may be able to convince the insurance company the engine damage was the result as well. Just tell him to make every third statement "everyone knows these engines are good for 500k" when talking to insurance people. If the agent shows any doubt just suggest checking on ebay
Reply With Quote
Old 03-29-2005, 08:56 PM
whunter's Avatar
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,353

Hello Carrameow
1987 300D that will not start.
Was the deer hit repaired?
Was the damaged water pump pulley overlooked?

Describe failure better please:
#1. Was it at 95 MPH or 45 MPH?
#2. Did he run coolant dry before he stopped?
ASE Master Mechanic

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
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
Old 03-29-2005, 10:36 PM
Coming back from burnout
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
Thanks everyone

I will get a look at the car tomorrow and get more data.
Reply With Quote


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
The #14 head on the 603, really bad? For sure? bbeardb Diesel Discussion 70 04-30-2007 10:34 AM
OM603 Cracked Head - What else to change? goldenbear Diesel Discussion 78 03-02-2006 09:36 AM
380SEL replace 6 bent valves or used head? New2MBZ Tech Help 0 07-30-2003 02:17 PM
300D don't start in park or neutral -HELP!!!!! lovac Diesel Discussion 8 05-30-2003 11:34 AM
Cracked A-Frame on a 300D? turbodiesel Diesel Discussion 8 05-07-2002 03:27 PM

All times are GMT -4. The time now is 07:28 AM.

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