Hi,

I get paid pretty well to read this forum - finally time to post again.

Car: 1986 300SDL 172K - owned since 9/05
Oil: Castrol 10W40 changed every 3K
Fuel: B80-B100 biodiesel UNWASHED (I'll expound if anyone cares). Been in use for ~2000 miles
Fuel filters: changed about 500 miles ago - still picking up black flecks in primary.

Problem: sudden (within one day) smoking problem only when hot and only apparent at idle. Smoke is almost certainly fuel (rather distinctive smell)

Search results: probably fouled injectors due to marginal fuel quality - unburned glycerol or soap has altered spray patter...please correct if wrong.

Question: will Diesel Purge help or do the injectors need to be removed and cleaned? If latter, I didn't see a "cleaning injectors DIY link"- is there one? If former, what is currently best product?

Thanks in advance - this forum has been a great resource - OK my boss might not agree...

prc

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1986 300SDL 175k
2003 VW Passat Wagon 58k

id run a diesel purge and if that doesnt work id pull the injectors and inspect and go from their. have you molested the ALDA?

Your instructions are right here:

http://skinnerbox.steaky.org/Service/W123/Index/617T/07MechElec.htm

Go to section 07.1-137. Disassembly, cleaning, assembly and adjustment of injection nozzles.

danny

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1984 300SD Turbo Diesel 150,000 miles

OBK member #23

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Thanks much. No, haven't touched the ALDA - unfortunately haven't had time to mess with anything that isn't broken

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1986 300SDL 175k
2003 VW Passat Wagon 58k

I have been told Diesel Purge can actually clog injectors. I gues it drags the dirt it cleans right to the nozzel. The Bosch shop that does my injector work doesn't think to highly of it. I tired it on the SD and didn't notice a difference.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

run B20 if you can find it....or higher concentrations...that stuff can do wonders to a car.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

I agree, running B20 or better will probably get you better results than that snake oil.

__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012