Author Topic: Missing and smoking  (Read 2033 times)

Richard

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Missing and smoking
« on: June 01, 2018, 08:59:56 »
I’m new to the group so thanks for allowing me to join. Can anyone help please

My 1966 230 Auto Pagoda has suffered an engine fault where it started expelling dark smoke from the exhausts, lost power and generally sounded rough. I turned it off as soon as I could. It was smelling of fuel over the last few months but I put that down to its age.

Can anyone provide any ideas to what could be wrong please?

Also do you have any contacts in the UK for parts and part brochures?

Many thanks in advance.

ja17

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Re: Missing and smoking
« Reply #1 on: June 01, 2018, 15:27:17 »
Hello Richard,
 First check all your fluids to see if you have any unusual consumption. Sounds like you have a sudden rich running situation. It might be something stuck on the fuel injection. Possibly the cold starting valve on the intake manifold could be stuck open? Many other possibilities, but very black smoke is most often excessive fuel. White smoke could be coolant, or auto transmission fluid. Bluish smoke could be oil.  Remove your spark plugs and look at them for clues.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

A Dalton

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Re: Missing and smoking
« Reply #2 on: June 01, 2018, 16:43:35 »
 My first check would be oil level in the MFI pump.

Benz Dr.

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  • Benz Dr.
Re: Missing and smoking
« Reply #3 on: June 01, 2018, 17:14:07 »
This may not apply but the last time I was involved in a '' missing and smoking '' situation it was in grade 12 and I was sent home from school for a few days. ;)
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

Richard

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Re: Missing and smoking
« Reply #4 on: June 01, 2018, 19:02:26 »
Thanks for your comments, I appreciate it.

Richard

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Re: Missing and smoking
« Reply #5 on: June 04, 2018, 19:08:02 »
That’s great, many thanks sir.

Tom in seattle

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Re: Missing and smoking
« Reply #6 on: June 12, 2018, 06:10:38 »
Pull spark plugs and see if one or all are fouled with oil or unburned fuel. 
Tom Averill
1967 250 SL Auto Euro Spec