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#1
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Start problem developing...
1980, 300TD.
First start of the day is becoming harder than usual. Outside temp still in the 40s. I cycle the glow plugs twice before starting, the engine starts ok, runs for few seconds then quits. Try 2 or 3 times and it starts and runs ok. I suspected defective plugs, but when the car eventually runs It does not smoke at all which makes me believe that it might be fuel related (or both). Otherwise during the day the car start and runs well. - Converted to new pencil type/ parallel plugs 7 months ago. - Looked for fuel leaks but can't find any. - Fuel filters ok. Any suggestions? Thank you
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1980 300TD(euro non turbo): Eng: 617.912 /Tran:722.118 1985 300SD: Eng: 617.951/Tran: 722.416 |
#2
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Check the glowplugs. Pump the primer pump a bunch of times before starting it first thing in the morning and see if it makes a difference. If it does, that might indicate a fuel problem.
__________________
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 |
#3
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1. How many miles? Could you be feeling the first effects of an engine which is wearing out and losing compression? Maybe over the summer you crossed a low-compression threshold which is now making starts harder.
2. Try giving it an artificial fast idle on your very first crank. The 240D has a twist-knob for this purpose, but I'm pretty sure your car doesn't. So just hold your foot at about 1/8 or 1/4 pedal when you cold-start it. It should start on the first try, run at that faster idle. Once the tachometer (if you have one) is registering, holding it at 1000-1100 would be plenty fast. Ten seconds of fast idle and then slowly (if you yank your foot away suddenly, it might stumble and die instead of re-idling) remove your foot, and you should be idling normally. Maybe you shouldn't have to do that. But until the problem goes away or makes itself more pronounced and therefore obvious to find, there's a good way to only have to run the starter once in the morning. *should* work. |
#4
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Quote:
Thanks
__________________
1980 300TD(euro non turbo): Eng: 617.912 /Tran:722.118 1985 300SD: Eng: 617.951/Tran: 722.416 |
#5
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Quote:
Thanks
__________________
1980 300TD(euro non turbo): Eng: 617.912 /Tran:722.118 1985 300SD: Eng: 617.951/Tran: 722.416 |
#6
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Well its not the hot of summer any more so no air con problem. As a matter of normal maintenance you should pull all the GP's & test them now before it gets any colder.
__________________
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 |
#7
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define the amount of time you spend "cycling the glow plugs twice"
__________________
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! |
#8
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Quote:
(Ignition on: Wait about 10seconds after glow light extinguish)x2
__________________
1980 300TD(euro non turbo): Eng: 617.912 /Tran:722.118 1985 300SD: Eng: 617.951/Tran: 722.416 |
#9
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Update
This morning: 42F.
pump the primer pump a few times (as per Kerry). High idle knob on. Cycle the glow plugs only once. Car started and ran first crank, no hesitation what so ever.... I'll check the glow plugs anyway but I must have some other problem..
__________________
1980 300TD(euro non turbo): Eng: 617.912 /Tran:722.118 1985 300SD: Eng: 617.951/Tran: 722.416 |
#10
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Air leak in your fuel lines most likely. Look for wet spots. Could be the primer pump itself. Do you have the old white topped screw down style or the newer spring loaded version? Older version has a reputation for leaking.
__________________
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 |
#11
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Quote:
try this if the starting problems continue, turn the key to the glow position, then wait until you hear the click of them turning off, or watch your dome light, it'll brighten when the plugs turn off. then try starting. if pumping the primer solves your starting issue, next time pay attention to the sounds the primer makes. how many pumps before you get the buzz signifying fuel returning to the tank? does your primer leak ANY fuel when pumping?
__________________
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! |
#12
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Found a very small fuel leak coming from the line near the primer pump (new style).
It is so small that I almost missed it. Don't know if this could be the problem or just part of it. Got the parts ordered today... I'll see. Thanks everyone for your much appreciated help.
__________________
1980 300TD(euro non turbo): Eng: 617.912 /Tran:722.118 1985 300SD: Eng: 617.951/Tran: 722.416 |
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