Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 02-02-2001, 01:47 AM
Registered User
Join Date: Jun 2000
Posts: 16
I just had the strong engine transplanted from my worn out 123 300D (77) chassis to a fine '80 123 chassis by a local shop with a good reputation. The mechanic is a capable chap but has limited diesel experience. He wants me to take the car to someone with more MB/diesel experience to correct the leaky injectors that are apparently the result of months of sitting waiting for another body to come along.
One or two injectors seeped a little when I parked it and the guy says that once it starts, it will run all year. However, if it sits for any length of time, (over night) it will take a can of ether (sans glo) to prompt it to start again. I meant to ask him if he knew about the little pump on the injector head that bailed my ass out the time I ran the car out of fuel some years ago. It may not make any difference. I know little about any of this.
The engine was rebuilt several years ago and the MB specialists told me that the engine was in over all good shape before I had them swapped. Good compression and all that sort of thing. I had to keep the '80's vacuum assisted tranny due to some physical mismatch and the fellow had to swap glow networks for some similar reason. That didn't seem to phase him in the least but he doesn't want to deal with these injectors. My Saabs would have leaky injectors from time to time and even I fixed one or two of them. I gather there is some major difference (aside from fuel type)since I am the Moe Howard of motor repair.
The mechanic also can not get the engine to shut off with the ignition switch. He is aware that it is a vacuum control of some type but is stumped as to why it won't shut off. He reported that someone had cut the wires to the switch at some point prior but he reconnected them. The rest of the wiring is seemingly fine. I assume these are starter wires. When I got the first 300 all those years ago, I was warned by other enthusiastic owners that some day, the car will simply refuse to shut off and the top mounted "stop" lever will be required. It never happened to me but one day it "ran on" or "dieseled" but shut off after a few seconds. I would appreciate any input from this informed forum about these problems. Cheers!

Reply With Quote
Old 02-02-2001, 08:42 PM
Registered User
Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
Two things. I would replace the fuel filters and make sure that they are tight. Any air here and the car won't start.

The vacuum system IS what turns off the engine. To test, just connect a vacuum pump to the shut off element and pull a vacuum with the engine running. It should stop. If so, you have a source problem.
Donnie Drummonds
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Genuine Bosch rebuilt injectors Poor Quality? RunningTooHot Diesel Discussion 28 05-13-2015 05:32 PM
Diesel Purge Now Leaky Injectors paulem Diesel Discussion 15 07-26-2005 11:03 PM
Fuel injectors hbofinger Tech Help 10 05-25-2005 10:00 PM
350 SDL Injectors - Rebuild/Recalibrate Or Repalce? ezrider Diesel Discussion 1 03-11-2003 03:02 PM
Genuine Bosch rebuilt injectors (Diesel) Poor Quality? RunningTooHot Tech Help 8 11-16-2001 09:34 PM

All times are GMT -4. The time now is 03:44 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page