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 02-28-2004, 05:24 PM
lietuviai's Avatar
Registered User
 
Join Date: Mar 2003
Location: SW WA
Posts: 5,744
Question Another glow plug question...

Before starting my 300D in the mornings, I sometimes re-glow the glow plugs two or three times before trying to start it. I wait until I hear the loud thunk from the relay when I do this and not at the time when only the GP light goes out. Is there a maximum amount of successive re-glows of the plugs that I can do without harming them? Its just that that's about the only way I can get the car to start well enough that it won't stall out when I pull out the driveway. It won't idle on its own and it misses horribly until it is warmed up enough. I've run diesel purge, checked valve clearances and even changed the GP's without any improvement.

__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
Reply With Quote
  #2  
Old 02-28-2004, 06:44 PM
VeeDubTDI
Guest
 
Posts: n/a
After about 3 full glows, the battery will start to lose a bit of juice.

Have you done a compression test? How much blowby is there?
Reply With Quote
  #3  
Old 02-28-2004, 09:58 PM
lietuviai's Avatar
Registered User
 
Join Date: Mar 2003
Location: SW WA
Posts: 5,744
I haven't done a compression check recently but the PO did one a few years ago and the numbers were within normal limits. I can't tell how much would be too much blow by, but when I remove the oil cap there is some blow by. I'd like to do another compression check myself but I don't have a diesel gauge.
I've got an excellent battery. I've left one of those l/r parking lights on by mistake overnight and it cranked over fine the next morning.
__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
Reply With Quote
  #4  
Old 02-28-2004, 10:20 PM
Stevo's Avatar
Registered User
 
Join Date: Apr 2002
Location: NW WA
Posts: 6,299
Are you sure all the GPs are glowing?
__________________


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
  #5  
Old 02-28-2004, 10:32 PM
lietuviai's Avatar
Registered User
 
Join Date: Mar 2003
Location: SW WA
Posts: 5,744
MapleLeaf, I wish I knew. My tach doesn't work because of some short in CA emissions system. I've tried fiddling with the idle screw (rack damper?) with no improvement.

Stevo, I would think that they all do since they're fairly new and they all get current.

When I first start it, it really sputters and misses bad for a few minutes. When I restart it later in the day, it seems to run OK except with an occaisional minor miss for the first minute. It's as if the fuel leaked out somewhere overnight or it got air in the system somehow. I this were a gasser, the problem would be a leaky float bowl and I would know how to fix that. What could be a similar problem in a diesel?
__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
Reply With Quote
  #6  
Old 02-28-2004, 11:30 PM
Registered User
 
Join Date: Aug 2002
Location: NE Okla
Posts: 1,104
"It's as if the fuel leaked out somewhere overnight or it got air in the system somehow."

If there are leaks in the return lines or the hand primer pump, air can get into the system and cause some of the problems you are seeing. These leaks do not always show diesel drips or wetness in their early stages.
__________________
1961 190Db retired
1968 220D/8 325,000
1983 300D 164,150
Reply With Quote
  #7  
Old 02-28-2004, 11:37 PM
VeeDubTDI
Guest
 
Posts: n/a
Question

lietvuiai,

I just noticed your new avatar. Is that one of your cars that appears totalled?
Reply With Quote
  #8  
Old 02-29-2004, 04:33 PM
lietuviai's Avatar
Registered User
 
Join Date: Mar 2003
Location: SW WA
Posts: 5,744
Quote:
Originally posted by VeeDubTDI
lietvuiai,

I just noticed your new avatar. Is that one of your cars that appears totalled?
Nah, It's one of many photos I have from a M-B wrecking yard. That one I had up until recently was of an unfortunate late model SLK.

__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
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 12:10 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, 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