STD Tuning Engine Oily Glowplugs, what does this mean?

Oily Glowplugs, what does this mean?

Oily Glowplugs, what does this mean?

 
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sassparilla_kid
diesel > all other fuels

1,618
03-20-2012, 03:38 PM #1
So I went to start my car this morning and it cranked but wasn't firing up, so I figured its probably a couple bad plugs and took our spare car to my class this morning. After returning home, I started checking things out and what not, here's what I have determined.

Power is getting to the plugs, and at least one is bad, still need to check the others.

I have removed the bad plug, (Bosch, I thought it was gonna be one of the Autolite ones but I'm guessing this plug is older than I am) and discovered the end of it all oily and disgusting. I cranked the car for probably a total of 30-40 seconds intermittently trying to start up this morning, hitting my glow plug button in between attempts.

Please tell me the oily plug does not indicate some sort of catastrophic failure in the engine, because that would be all kinds of bad.

Also, I had the same problem last night after I got out of my welding class (around 9:30) and I guess the block hadn't cooled too much because it eventually started up, and after warming up for a minute it ran fine

Thanks y'all

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
03-20-2012, 03:38 PM #1

So I went to start my car this morning and it cranked but wasn't firing up, so I figured its probably a couple bad plugs and took our spare car to my class this morning. After returning home, I started checking things out and what not, here's what I have determined.

Power is getting to the plugs, and at least one is bad, still need to check the others.

I have removed the bad plug, (Bosch, I thought it was gonna be one of the Autolite ones but I'm guessing this plug is older than I am) and discovered the end of it all oily and disgusting. I cranked the car for probably a total of 30-40 seconds intermittently trying to start up this morning, hitting my glow plug button in between attempts.

Please tell me the oily plug does not indicate some sort of catastrophic failure in the engine, because that would be all kinds of bad.

Also, I had the same problem last night after I got out of my welding class (around 9:30) and I guess the block hadn't cooled too much because it eventually started up, and after warming up for a minute it ran fine

Thanks y'all


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

larsalan
Superturbo

1,272
03-20-2012, 03:47 PM #2
Sounds to me like it's not getting hot. Otherwise that oil would be toast. Doesn't sound like catastrophic failure.

Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
larsalan
03-20-2012, 03:47 PM #2

Sounds to me like it's not getting hot. Otherwise that oil would be toast. Doesn't sound like catastrophic failure.


Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'

aaa
GT2256V

913
03-20-2012, 03:48 PM #3
Valve seal? HG failure? In any case the hard starting sounds unrelated to the oil.

I'd buy some plugs, and do a compression test while replacing them.
aaa
03-20-2012, 03:48 PM #3

Valve seal? HG failure? In any case the hard starting sounds unrelated to the oil.

I'd buy some plugs, and do a compression test while replacing them.

sassparilla_kid
diesel > all other fuels

1,618
03-20-2012, 04:54 PM #4
So the oily plug ended up being the only bad one, the car fired right up after changing it and checking the others. I'm pretty sure it was just diesel on the plug because it smelled like diesel, and looked like diesel, and felt about like the viscosity of diesel, leading me to think it was.

I also disconnected the fuel shutoff vacuum line and blew/sucked through that little green thing then reconnected it, not sure if that could have anything to do with the issue or not. I intend to just replace all of the plugs in the next month or two with Bosch ones, and check compression at the same time. Just need to get some monies first.

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
03-20-2012, 04:54 PM #4

So the oily plug ended up being the only bad one, the car fired right up after changing it and checking the others. I'm pretty sure it was just diesel on the plug because it smelled like diesel, and looked like diesel, and felt about like the viscosity of diesel, leading me to think it was.

I also disconnected the fuel shutoff vacuum line and blew/sucked through that little green thing then reconnected it, not sure if that could have anything to do with the issue or not. I intend to just replace all of the plugs in the next month or two with Bosch ones, and check compression at the same time. Just need to get some monies first.


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

aaa
GT2256V

913
03-20-2012, 05:13 PM #5
Ah, good thing it was just diesel.

How would one missing plug make it that hard to start? I don't recall that occurring, it would just run rough on four holes for me.
aaa
03-20-2012, 05:13 PM #5

Ah, good thing it was just diesel.

How would one missing plug make it that hard to start? I don't recall that occurring, it would just run rough on four holes for me.

sassparilla_kid
diesel > all other fuels

1,618
03-20-2012, 06:51 PM #6
Yeah I don't know what the deal was, but it started right up afterwards lol. It was really strange, I'm guessing there was something else going on that got solved without realizing it
This post was last modified: 03-21-2012, 01:20 AM by sassparilla_kid.

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
03-20-2012, 06:51 PM #6

Yeah I don't know what the deal was, but it started right up afterwards lol. It was really strange, I'm guessing there was something else going on that got solved without realizing it


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

Hercules
GT2559V

219
03-21-2012, 01:29 AM #7
How were glow plugs tested? The only accurate test is checking current draw (with timer disconnected) Approx. 20amps would be normal. There may still be another bad plug. Would now start ok with (4) good plugs.
Hercules
03-21-2012, 01:29 AM #7

How were glow plugs tested? The only accurate test is checking current draw (with timer disconnected) Approx. 20amps would be normal. There may still be another bad plug. Would now start ok with (4) good plugs.

Simpler=Better
PORTED HEAD

2,127
03-21-2012, 08:17 AM #8
IIRC, if the #1 plug fails then the whole system shuts down. When my #1 went I jumped over to #2 to get me home

Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
03-21-2012, 08:17 AM #8

IIRC, if the #1 plug fails then the whole system shuts down. When my #1 went I jumped over to #2 to get me home


Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?

sassparilla_kid
diesel > all other fuels

1,618
03-21-2012, 01:07 PM #9
Well I just tested to see if the plugs were completely dead, since I only had a test lamp with me, so there could be others that have extremely low resistance that would still allow the lamp to glow, but not be working. In any case I plan on ordering some Bosch ones soon enough. BTW the completely dead plug was from number 4 cylinder

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
03-21-2012, 01:07 PM #9

Well I just tested to see if the plugs were completely dead, since I only had a test lamp with me, so there could be others that have extremely low resistance that would still allow the lamp to glow, but not be working. In any case I plan on ordering some Bosch ones soon enough. BTW the completely dead plug was from number 4 cylinder


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

 
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