lightning strikes twice - PeachParts Mercedes-Benz Forum

83-240D · #1 12-10-2005, 09:48 PM

both 240's have lost their glow plug lights and evidently their glow plugs lighting.

its dark and snowing and i am exhausted so i am not pulling a carrameow and laying around cars tonite. tomorrow i am going to look for the source of the problem.

one will start with the 200 amp charger running and the key cranked all the way over. last nite i had to crank the key and hold it. today again with the 200 amp charger. have not introduced starting fluid yet but am ready to do so after disconnecting the gp's. the other just started acting up but needed a 200 amp jump thursday. tonite there was some compression but just no start.

first the glow plug fusible link.

what comes next? checking the ohms to the plugs?

Brian Carlton · #2 12-10-2005, 10:02 PM

Both of them have lost one or two plugs.

Pull the connector from the side of the relay and check the resistance to each plug.

Bet that you will find a couple of them open (infinite resistance).

Ken in NC · #3 12-10-2005, 10:53 PM

Check for +12vdc on any glow plug when the key is turned to the glow plug position. If you do not have +12vdc on any glow plug, suspect your glow plug relay or the fuse in the relay

83-240D · #4 12-10-2005, 11:26 PM

just got the volt meter working again. bad fuse. there must be humor there somewhere.

i suspected the fuse in the gp relay and checked one car tonite after the "help" call. it was fine. the car battery was just on the trickle but it measured 14 volts so i turned it off.

tomorrow for the plugs. thanks guys.

#5 12-10-2005, 11:30 PM

GP failures aren't that unusual, I've replaced one in the 240D and three in the 300D within the last few months. I think they just get more of a work out when it gets cold out, and the marginal plugs fail.

83-240D · #6 12-10-2005, 11:37 PM

the plugs in one were replaced in july. can't be more than 2k miles on them. prechambers were reemed for carbon build up also.

83-240D · #7 12-11-2005, 07:06 PM

i haven't read the rest of the posts since my last but here is what has transpired today.....

both cars measure .5 to 1 ohm at the gp relay and the volts at the plugs are 10-14.

i bought a new class 49 duralast today and tried it it both cars to no avail including the spraying of starting fluid and wd 40 all under hunters watchful telephone voice.

the oil is 15-something syn mob 1. maybe it is too heavy but also now need to have the charging system looked at by an indy.

thanks for your interest and help..

whunter · #8 12-11-2005, 10:10 PM

Added note:
Engine starter RPM drops like a brick, even with a NEW battery.
You need a starter AMP draw test on both cars, need numbers.
I did not like the sound = crank speed my ears heard, too slow.

83-240D · #9 12-12-2005, 08:02 PM

blondie has developed a list over the left front tire. from a few feet away you would swear that the inner fender is resting on the tire. pix to come.

i think that is the end.

anyone wanna 1983 240 greasecar?

whunter · #10 12-22-2005, 09:39 PM

Quote:

Originally Posted by 83-240D

Blondie has developed a list over the left front tire. from a few feet away you would swear that the inner fender is resting on the tire. pix to come.
I think that is the end.

Anyone wanna 1983 240 grease car?

Here are the pictures.
The buyer backed out after seeing the pictures.

whunter · #11 12-22-2005, 09:40 PM

Quote:
Originally Posted by 83-240D
Blondie has developed a list over the left front tire. from a few feet away you would swear that the inner fender is resting on the tire. pix to come.
I think that is the end.

Anyone wanna 1983 240 grease car?

Here are the pictures.
The buyer backed out after seeing the pictures.

whunter · #12 12-22-2005, 09:40 PM

Quote:
Originally Posted by 83-240D
Blondie has developed a list over the left front tire. from a few feet away you would swear that the inner fender is resting on the tire. pix to come.
I think that is the end.

Anyone wanna 1983 240 grease car?

Here are the pictures.
The buyer backed out after seeing the pictures.

83-240D · #13 12-13-2005, 01:44 PM

well could it be the gp relay is fused at the contacts? wodnek and i were there last night trying to use a 400 watt portapower schumacher. it was connected to the 80 amp fuse but it didn't even spark. it didn't spark again when we ran the jumper cable from the battery to the fuse.

onward to tonite.

blondie has a collapsed left lower control arm. hunter thinks he has a buyer. yay.

83-240D · #14 12-15-2005, 11:23 PM

red came back today form a local indy. he said it was the fault of the glow plugs. now i changed 3 of 4 in blondie and nothing. why only three? i sacrificed my 8mm wrench to the ip and it is never to be seen again until the engine comes out when doing plug 1.

boneheaddoctor · #15 12-16-2005, 08:43 AM

Quote:

Originally Posted by 83-240D

red came back today form a local indy. he said it was the fault of the glow plugs. now i changed 3 of 4 in blondie and nothing. why only three? i sacrificed my 8mm wrench to the ip and it is never to be seen again until the engine comes out when doing plug 1.

you know you can reach up from under the car to recover that wrench from that shelf it falls to......trust me I've dropped stuff there too.