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 07-02-2010, 04:19 AM
1978 240D W123--1983 230E
 
Join Date: May 2010
Location: Kent UK
Posts: 55
240D Glow Plugs W114

One of my glow plugs has died on my 240D, these are the old series wired glow plugs so when one goes they all go. I am having some trouble getting hold of a replacement quickly so i wondered if it would do any damage if I missed the dead one out when I put the wiring bars back.

Anyone know if this would cause a problem?.

Reply With Quote
  #2  
Old 07-02-2010, 10:17 AM
Fold on dotted line
 
Join Date: Aug 2007
Location: SE Mich
Posts: 3,284
Quote:
Originally Posted by cdc02254 View Post
One of my glow plugs has died on my 240D, these are the old series wired glow plugs so when one goes they all go. I am having some trouble getting hold of a replacement quickly so i wondered if it would do any damage if I missed the dead one out when I put the wiring bars back.

Anyone know if this would cause a problem?.
I don't think these guys are that far from you, and they should have your part.

http://www.sparshatts.co.uk/


I would not run a car w/o a GP if available but that's me
__________________
Strelnik
Invest in America: Buy a Congressman!

1950 170SD
1951 Citroen 11BN
1953 Citroen 11BNF limo
1953 220a project
1959 180D
1960 190D
1960 Borgward Isabella TS 2dr
1983 240D daily driver
1983 380SL
1990 350SDL daily driver alt
3 x Citroen DS21M, down from 5
3 x Citroen 2CV, down from 6
Reply With Quote
  #3  
Old 07-03-2010, 04:25 AM
1978 240D W123--1983 230E
 
Join Date: May 2010
Location: Kent UK
Posts: 55
I tried to start the car with three plugs wired but no good which I was surprised about.

So I took all the plugs out and tested them individually (don't have multimeter handy), connected body to negative and touched positive onto the thread. Nothing on all three remaining plugs that look OK.

These are old loop plugs, can they fail internally.

Am I missing something?
Reply With Quote
  #4  
Old 07-03-2010, 07:24 AM
layback40's Avatar
Not Banned
 
Join Date: Nov 2009
Location: Victoria Australia - down under!!
Posts: 4,023
They are like 2V plugs. They are in series. If you put 12V across them there is every chance you will kill them. We can only hope that you miss connected them when you tested them. You need to have them tested properly. that is resistance between the 2 terminals, not down to earth. What makes you think the other one is faulty? Do you have 12V on the supply wire when in glow mode?
__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving
Reply With Quote
  #5  
Old 07-13-2010, 09:49 AM
1978 240D W123--1983 230E
 
Join Date: May 2010
Location: Kent UK
Posts: 55
Next phase.

I should any day now receive a fast glow plug kit in the post for my W114 240d (in w123 chassis).
S shown here
http://cgi.ebay.com/ebaymotors/Mercedes-Benz-Bosch-Fast-Glow-plug-kit-240D-220D-190D-/170403899701?cmd=ViewItem&pt=Motors_Car_Truck_Parts_Accessories&hash=item27acdd2935#ht_1324wt_939

I need some advice on fitting this kit. My glow plug system is activated by pushing a button on the centre console and holding it for 20seconds in the morning and less as the day goes on. It is directly wired to the battery.

I want to fit the new system directly to the ignition but I am not sure everything is in place as the car was originally a petrol. I am fairly confident about wiring the system to the ignition ( I think) but would I need a relay here or is this handled by the kit.

As usual any help will be greatly appreciated.
Regards
Brett
Reply With Quote
  #6  
Old 07-13-2010, 10:26 AM
Registered User
 
Join Date: Jan 2002
Posts: 18,350
In my opinion, your push button system is superior to a relay system. There is no timer or relay to fail and your own mind can control the length of the glow. I would simply install the new pencil plugs, run the jumper wires from plug to plug, remove the ground from the loop style plugs and hook the loop style hot wire to one of the new plugs and you're good to go.
It's a little late to tell you this because all you really needed were 4 retrofit pencil plugs and some wire which would have been cheaper than a whole kit.
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #7  
Old 07-13-2010, 11:16 AM
1978 240D W123--1983 230E
 
Join Date: May 2010
Location: Kent UK
Posts: 55
Its a good reply. I will probably do what you said and see how I feel about it. Its just the if I go to sell it people question the start system. Its good because I run a bit of WVO on this car.

Thanks Brett
Reply With Quote
  #8  
Old 07-13-2010, 11:46 AM
Registered User
 
Join Date: Jan 2002
Posts: 18,350
You could say that you are trying the keep the engine authentic since the 616 engine in the 114 had the gorilla knob system from the factory I think.
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #9  
Old 07-13-2010, 11:52 AM
1978 240D W123--1983 230E
 
Join Date: May 2010
Location: Kent UK
Posts: 55
It was more a case of the 616/w114 engine in the W123. Although it is not something I have a problem with as the engine is fantastic and it drives beautifully. Eyebrows are raised when the gorilla knob is on the W123.

But I don't have any plans to sell it at the moment so ill see how it goes. But it would be good to know how to complete the installation.
Reply With Quote
  #10  
Old 07-13-2010, 11:58 AM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,835
exactly!
to make it authentic, you could go find a gorilla knob and retrofit it into your car...
or you could wire in a signal to the ignition circuit and connect your kit relay and have authentic keyed glow plug control. of course there is no glow light, so you don't get the benefit of burned notice... but it would be controlled by the key. you would also need a wire from the starter relay to tell the glow relay your motor has been cranked...

edit
hmmm I just looked at the kit you ordered. it is not the MB relay, so I hope it comes with instructions.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #11  
Old 07-13-2010, 12:14 PM
Registered User
 
Join Date: Jan 2002
Posts: 18,350
If your 123 was original a gasser, does it have a diesel ignition switch retrofitted to control the on/off of the engine? I can't imagine a gasser ignition switch using vacuum controls.
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #12  
Old 07-13-2010, 12:46 PM
1978 240D W123--1983 230E
 
Join Date: May 2010
Location: Kent UK
Posts: 55
No, the on off of the ignition is controlled by a pull switch on the centre console.

Pull it out and it stalls the engine.

I have opened a new can of worms haven't I !!!

I do have a diesel instrument panel, I am taking the bulb and orange decal out and fitting it to my one.
Reply With Quote
  #13  
Old 07-19-2010, 06:26 AM
1978 240D W123--1983 230E
 
Join Date: May 2010
Location: Kent UK
Posts: 55
I need more help.

I have fitted the plugs with new wires but they are running through the old w114 glow controller which is taking a long time before they kick in.

I want to remove the controller completely and use the glow plugs with my button but I believe I need an in-line current resistor, does anyone know what value this resistor needs to be?

Last edited by cdc02254; 07-19-2010 at 06:43 AM.
Reply With Quote
  #14  
Old 07-19-2010, 10:02 AM
Registered User
 
Join Date: Jan 2002
Posts: 18,350
Not sure why you think you need a resistor. If the wires to your button are heavy enough, nothing else is needed. If you're not running the heavy wires thru the button you need a relay activated by your button. Any heavy relay is fine. Lot of people in the US use a Ford starter relay because they are cheap.
Why is the controller taking a long time to kick in?
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #15  
Old 07-19-2010, 10:38 AM
1978 240D W123--1983 230E
 
Join Date: May 2010
Location: Kent UK
Posts: 55
Hi Kerry,

So remembering that my system will be without relay I can directly wire my plugs to the battery with a button and light on my dashboard. All the wires are heavy duty. So there is not a chance I will burn the plugs out or anything?.

I think my old timer is naffed, it takes over a minute before it clunks and the plugs start to work.

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 08:09 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