wtf, weird fuel problems
wtf, weird fuel problems
08-17-2010, 11:13 PM
#1
Symptoms:
Starts and idles fine
Will not rev above fairly low rpm range (no tach, maybe 1200ish at most)
In park/neutral, revs up and down between 600 and 1200ish slowly, while
throttle is wide open.In d/s/l moves very slow, barely more than idling forward
Replaaced fuel filters, plenty of fuel in tank, idles without issue for any period. Throttle wide open for 15+ min it just revs up and down slowly.
I've got video, will upload when home. I'm wondering if the IP could be to blame?
Car is '80 300TD (n/a), >180k miles, no other know issues except squealy belt that I need to fix. Just bought last week so I do not know history, but general mechanic inspection pre-purchase found no engine issues. Was fine until this problem showed up while going 55mph on flat ground at sea level on a warm day (no funky circumstances)
Symptoms:
Starts and idles fine
Will not rev above fairly low rpm range (no tach, maybe 1200ish at most)
In park/neutral, revs up and down between 600 and 1200ish slowly, while throttle is wide open.
In d/s/l moves very slow, barely more than idling forward
Replaaced fuel filters, plenty of fuel in tank, idles without issue for any period. Throttle wide open for 15+ min it just revs up and down slowly.
I've got video, will upload when home. I'm wondering if the IP could be to blame?
08-18-2010, 12:59 AM
#2
http://www.youtube.com/watch?v=vDYZjIEAXjo
http://www.youtube.com/watch?v=GBgAsCWJHig
youtube videos of the car as it is behaving right now:
http://www.youtube.com/watch?v=vDYZjIEAXjo
http://www.youtube.com/watch?v=GBgAsCWJHig
08-18-2010, 05:15 AM
#3
Clean the fuel tank strainer. You can confirm before draining the tank by switching the supply and return lines.
ForcedInduction
08-18-2010, 05:15 AM
#3
Other than the knocking....
Clean the fuel tank strainer. You can confirm before draining the tank by switching the supply and return lines.
08-18-2010, 09:55 AM
#4
(08-18-2010, 05:15 AM)ForcedInduction Other than the knocking....
Clean the fuel tank strainer. You can confirm before draining the tank by switching the supply and return lines.
Ill do one better and put a bottle of diesel in diesel purge style. Then I can see if anything is coming out the return at idle (to see if there is adequate flow/ pressure)
The knocking is an injector I think.
(08-18-2010, 05:15 AM)ForcedInduction Other than the knocking....
Clean the fuel tank strainer. You can confirm before draining the tank by switching the supply and return lines.
Ill do one better and put a bottle of diesel in diesel purge style. Then I can see if anything is coming out the return at idle (to see if there is adequate flow/ pressure)
The knocking is an injector I think.
08-18-2010, 10:52 AM
#5
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
08-18-2010, 10:52 AM #5The knocking sounds a lot worse on the videos than in person, But as I was leaving yesterday, I was thinking that it does kind of sound like something from the bottom end.... especially when it idles.
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
08-18-2010, 11:39 AM
#6
(08-18-2010, 10:52 AM)Captain America The knocking sounds a lot worse on the videos than in person, But as I was leaving yesterday, I was thinking that it does kind of sound like something from the bottom end.... especially when it idles.
I really think its an injector, the clink is most prominent at the injector and not the bottom end.
(08-18-2010, 10:52 AM)Captain America The knocking sounds a lot worse on the videos than in person, But as I was leaving yesterday, I was thinking that it does kind of sound like something from the bottom end.... especially when it idles.
I really think its an injector, the clink is most prominent at the injector and not the bottom end.
08-18-2010, 04:17 PM
#7
ForcedInduction
08-18-2010, 04:17 PM
#7
So is the knock on my 240's engine. A bad wrist pin sounds a lot like an injector.
08-18-2010, 04:19 PM
#8
(08-18-2010, 04:17 PM)ForcedInduction So is the knock on my 240's engine. A bad wrist pin sounds a lot like an injector.
moot point because the knock isnt immobilizing the car right now. the car is having fuel related issues and is stuck in random neighborhood, and i live in an area with almost no public transit. i have to get this thing running. im working on getting a ride over to the car today so any advice on diagnostics for when i can get to it would be awesome.
(08-18-2010, 04:17 PM)ForcedInduction So is the knock on my 240's engine. A bad wrist pin sounds a lot like an injector.
moot point because the knock isnt immobilizing the car right now. the car is having fuel related issues and is stuck in random neighborhood, and i live in an area with almost no public transit. i have to get this thing running. im working on getting a ride over to the car today so any advice on diagnostics for when i can get to it would be awesome.
08-18-2010, 04:32 PM
#9
ForcedInduction
08-18-2010, 04:32 PM
#9
Sounds like your first priority should be to get a tow home. With the engine running flat towing any distance won't cause harm.
08-18-2010, 04:41 PM
#10
(08-18-2010, 04:32 PM)ForcedInduction Sounds like your first priority should be to get a tow home. With the engine running flat towing any distance won't cause harm.
no better off towing home than dealing with it where it sits (neighorhood nearby). association in my neighborhood will fine the house if i work on the car there. if i cant fix where it sits, will have to take to mechanic
(08-18-2010, 04:32 PM)ForcedInduction Sounds like your first priority should be to get a tow home. With the engine running flat towing any distance won't cause harm.
no better off towing home than dealing with it where it sits (neighorhood nearby). association in my neighborhood will fine the house if i work on the car there. if i cant fix where it sits, will have to take to mechanic
08-19-2010, 11:16 AM
#11
All the wheels roll right?
Sounds like a stupid question, but theoretically a locked brake could be involved. Had this problem with a nissan, bad master pushrod adjustment kept two brakes engaged until they heated and would stop the vehicle. For the longest time I though it was a tranny problem, including the smoke, which I though was coming from the center of the car, until I put my hand on the rim trying to get a look under there and burned the bejesus out of myselfCould be worth making sure, also would indicate other driveline issues also
Do you have a mity vac? you could check how hard it is to pull fuel from the tank, and you can cut out the fuel delivery system by running the car off a 1 gal tank in the engine compartment.
how did your visit yesterday turn out?
This post was last modified: 08-19-2010, 11:22 AM by JB3.
1974 240D 617 turbo swap, W201 5-speed, in the works project
1983 240D 616 stock, DD
1989 Chevy Astro, 617 turbo swap, T5 5-speed, 4.56 diff, work van
sounds transmission or torque converter related personally. How big is the fine for working on the car in the yard?
All the wheels roll right? Sounds like a stupid question, but theoretically a locked brake could be involved. Had this problem with a nissan, bad master pushrod adjustment kept two brakes engaged until they heated and would stop the vehicle. For the longest time I though it was a tranny problem, including the smoke, which I though was coming from the center of the car, until I put my hand on the rim trying to get a look under there and burned the bejesus out of myself
Could be worth making sure, also would indicate other driveline issues also
Do you have a mity vac? you could check how hard it is to pull fuel from the tank, and you can cut out the fuel delivery system by running the car off a 1 gal tank in the engine compartment.
how did your visit yesterday turn out?
1974 240D 617 turbo swap, W201 5-speed, in the works project
1983 240D 616 stock, DD
1989 Chevy Astro, 617 turbo swap, T5 5-speed, 4.56 diff, work van
08-19-2010, 11:29 AM
#13
(08-19-2010, 11:25 AM)stan fixed it. there was a small linkage down between the IP and the block which was not connected to the IP. missed it in the dark, but found it when i went back yesterday afternoon. all is well now, tested it by going up to LA and back last night!
Ha! awesome. I bet thats a load off the mind.
1974 240D 617 turbo swap, W201 5-speed, in the works project
1983 240D 616 stock, DD
1989 Chevy Astro, 617 turbo swap, T5 5-speed, 4.56 diff, work van
(08-19-2010, 11:25 AM)stan fixed it. there was a small linkage down between the IP and the block which was not connected to the IP. missed it in the dark, but found it when i went back yesterday afternoon. all is well now, tested it by going up to LA and back last night!
Ha! awesome. I bet thats a load off the mind.
1974 240D 617 turbo swap, W201 5-speed, in the works project
1983 240D 616 stock, DD
1989 Chevy Astro, 617 turbo swap, T5 5-speed, 4.56 diff, work van
08-19-2010, 02:22 PM
#14
(08-19-2010, 11:25 AM)stan fixed it. there was a small linkage down between the IP and the block which was not connected to the IP. missed it in the dark, but found it when i went back yesterday afternoon. all is well now, tested it by going up to LA and back last night!
Everything looks connected correctly in the video.
ForcedInduction
08-19-2010, 02:22 PM
#14
(08-19-2010, 11:25 AM)stan fixed it. there was a small linkage down between the IP and the block which was not connected to the IP. missed it in the dark, but found it when i went back yesterday afternoon. all is well now, tested it by going up to LA and back last night!
Everything looks connected correctly in the video.
08-19-2010, 02:54 PM
#15
(08-19-2010, 02:22 PM)ForcedInduction(08-19-2010, 11:25 AM)stan fixed it. there was a small linkage down between the IP and the block which was not connected to the IP. missed it in the dark, but found it when i went back yesterday afternoon. all is well now, tested it by going up to LA and back last night!
Everything looks connected correctly in the video.
It was the Fromunda linkage near the bottom of the IP.
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
08-19-2010, 02:54 PM #15(08-19-2010, 02:22 PM)ForcedInduction(08-19-2010, 11:25 AM)stan fixed it. there was a small linkage down between the IP and the block which was not connected to the IP. missed it in the dark, but found it when i went back yesterday afternoon. all is well now, tested it by going up to LA and back last night!
Everything looks connected correctly in the video.
It was the Fromunda linkage near the bottom of the IP.
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
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