|
|
|
#1
|
||||
|
||||
1982 300td dying
My 300td wants to stall after cruising on the freeway. The cold weather is making this happen. Should I add some RUG to breathe life back into the old beast?
__________________
'90 300SE --- 173k miles --- (Odometer just stopped working!) '85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10 '82 300TDT --- 236,xxx miles --- (My first one) Sold July '09 |
#2
|
||||
|
||||
that would not be my first choice,
I would try some white bottle diesel service additive. about 1/2 a bottle on an empty or low tank just before filling the tank. then run a pair of diesel purge bottles through the injectors, then replace both fuel filters... then change the air filter. then change the oil and filter. John
__________________
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! |
#3
|
||||
|
||||
Describe your primer pump. Is it white and requires unscrewing to operate or is it black and springs back when you press it? The old white kind can leak air and cause stalling.
__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine |
#4
|
||||
|
||||
Quote:
Time for a new primer me thinks!! Can anyone explain why this happens only after freeway driving? The beast does just fine between stoplights and through neighborhoods. I guess the idle is self adjusting, and the fuel pump cuts back more much after the high demand high speed.
__________________
'90 300SE --- 173k miles --- (Odometer just stopped working!) '85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10 '82 300TDT --- 236,xxx miles --- (My first one) Sold July '09 |
#5
|
||||
|
||||
I had that happen on my 80 TD, turned out the fuel tank was nastified and ended up having to pull it out and thoroughly clean it.
The symptom was stalling after freeway driving and the visible change in the engine compartment was lack of fuel in the pre-filter. I was able to get it restarted, after lots of manual pumping on the priming pump, but it would die shortly thereafter. You could test this theory by hooking up a temporary fuel tank in your engine compartment (ala Diesel Purge style) to bypass your fuel tank completely. If it runs fine like that, then you've found your problem. I wish I thought of that when I went through this.
__________________
-justin 1987 300TD, 1987 300TD 2008 R32, 2000 Passat Wagon |
#6
|
||||
|
||||
Justinperkins or anyone else,
In the way of replacing the tank screen, how low did you let the tank get before draining it?
__________________
85' 300D No inspection, No registration fees, Cheap insurance "If my calculations are correct, when this baby hits 88 miles per hour, you're going to see some serious %$&^." Last edited by LaughingGravy; 12-01-2006 at 11:01 AM. Reason: Did a proper search |
#7
|
||||
|
||||
Quote:
__________________
RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K |
#8
|
||||
|
||||
Quote:
I was changing my fuel lines, so I let a lot of it drain through the hoses, but I also loosened the tank screen, it's on the bottom, and drain a lot that way. If you have a large bucket to catch fuel in I would just pull the tankscreen and let it drain. Just loosen it so a little comes out not all at once. This way you can close it again when your bucket is full. Make sure you have extra buckets on hand there may be more than you planned on. If you drain is through the hoses, take the cap off the tank so it can breath. I didn't and got the glug glug draining which is slow. You can just clean the screen off. Just make sure it's dry before you put it back in. Make sure you put on a new o-ring. Apparently they tend to leak if you don't, and you don't want to have to do it all again, and the o-ring is cheap.
__________________
Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
|
#9
|
|||
|
|||
Any chance the tank is doing the vacuum thing. Leave the filler cap a little loose before getting back on the interstate. Or get out and check it for an air intake sound when you loosen it just after coming off the highway. Yes the fuel vicosity might be greater with the cold weather as well. That would seem to make it harder to pull fuel against a partial vacuum as well. So the symptom would be more noticable or only occur in cooler weather.
|
#10
|
|||
|
|||
When I want to inspect my 300TD tank screen, I prepare a plug using a golf ball wrapped in a rag in a plastic bag to jam up against the hole after removing the screen as quickly as I can. I prop it up with blocks of wood or a jack. I only lose a cup or so of fuel, which falls into a wide pan underneath.
I've done this a couple of times; the screen has been almost perfectly clean. The amount of fuel in the tank is not an issue for me. Steve |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|