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#1
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300sdl no power untill 2500 rpm rich exaust
I am a new owner of a 1987 300sdl and it starts great idels a little rough however the problem is no power untill 2500 rpm or untill you get up to 20-30 miles per hour. It smokes dark rich smelling not oil. no real oil consumtion. anyboby have an idea for me to start? Iam new to the deisel (plenty of gas powered experience) HELP?
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#2
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starting
3 areas to check first....glow plugs, injection pump, injectors.....get a leakdown test...and a compression test...these models tent to have bad head gasgets.....but otherwise a great engine...replace the head gasket and should be great
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#3
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Make sure the tube in the photo is clear, as well the hole going into the intake manifold. I have a white test lead clamp attached to the tube. Are you up to date on your fuel filter status? Harry |
#4
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Had the same problem. Injection pump was bad. Thought it was the delivery valves, replacement did not help. Check the basics, including timing of cam and pump.
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#5
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next
It apprears to have new glow plugs as I found the old ones in the floor board, the IP looks clean as if some one has rebuilt it or at least had it off and cleaned it up because it lookes verry clean and you can see where the head has been off because everything below the head is grease covered and the head is not. any other ideas, before I can get this checked out? Thanks
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#6
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could be water in fuel.I run Iso Heet for diesels.2 bottles if bad,or once a month.
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1999 w140, quit voting to old, and to old to fight, a god damned veteran |
#7
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Ialready had made sure no water in fuel, any other ideas? thanks
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#8
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I agree. Sounds like it's starved for air. How's the turbo working?
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Codifex 1981 240D ChinaBlue (Got her running with a donor engine.) 1983 300DTurbo w/sunroof. 1984 300TD manual sunroof. (Electrical Gremlins) |
#10
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1979 240D, 4spd manual, Power Sunroof, manual windows, 147k miles, Pastel gray/Black MB Tex. 1991 300D 2.5 - Smokes like it's on Crack! |
#11
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Been telling 603 guys for years to gut the cat under the car.
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I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] |
#12
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could it be the turbo waste gate valve is jammed open?
Or the turbo bearings are tight and not spooling up properly (not so likely).
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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 |
#13
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It is not a catalytic converter is it?
It is called a trap oxidizer i believe,or is it a particulate filter? Either way it needs to go.Going to do this mod soon. Did these vehicles come with that on the car before or after the dealer took off the trap in the engine bay? |
#14
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You might try tweaking the ALDA (do a search, you'll have days of reading). It made a big difference on my 124 (603). Not sure if yours has one or not but the banjo bolt at the back of the intake can get clogged with soot and not send the proper boost signal. These are just a couple quick, cheap things to look at.
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Muleears '07 E320 Bluetec 133K my DD '04 Jaguar XJ8 VDP, 34K '10 Hyundai Accent 60K Grocery Getter '02 VW Golf soon to be on the road again '97 E300 Diesel Son's DD '61 VERY tolerant wife Hampton Roads, VA USA Gone but not forgotten: '67 250S 95K '86 300SDL '87 300D Turbo, 364K! R.I.P. '98 E300 Turbodiesel, 213K '02 S420, 164K '01 Prius 138K |
#15
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Quote:
Well its technical name is a Diesel Oxidation Catalyst I believe... sort of like a soot trap type of deal. Trap Ox was mounted under the hood. Then when that proved to be a very poor idea, the trap ox was deleted and the DOC was installed below the car. There are still 603s out there with the Trap Ox, but this is not too common. Supposedly this was only on '86 CA cars and all '87 cars. I do not know about the '90+ cars, never looked close when I had seen one in person.
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I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] |
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