HELP, 1987 300SDL carbon build
 

Hello all,i have 1987 300 sdl 160k ,replaced my glow plugs and rebuilt my injectors pop tested within 75 lbs no higher than 2000psi.i thought i was going to be happy but it still smokes...blue ,white..GUYS the car sat for awhile i was told to put some algae cleaner in, wows lot of crap came out of fuel before i rebuilt injectors.I HAVE NO BLOW BY WHEN I open the valve cover...when i took the air intake i was surprised of the carbon build up,it was thick .#1 ,5,6 were wet ,the carbon build up was half way down the turbo pipe..im not sure what to ask but any help please,turbo rebuild or could it be exhaust problem,how to tell help ??THANKS FOR AL AND ANY ADVICE .after rebuilding injectors and g-plugs it does sound better. RICK ,,,,,yes im a electrician by trade

Are you sure it's not burning any oil?

Time for an Italian tune-up :cool: ;)

Do a valve adjustment and then go for a nice long weekend car trip...say 500-900 miles.....and drive man drive!!!!

Um, 87 has hydraulic valves... nothing to adjust.

OP,
the black gook in turbo pipe is EGR soot mixed with normal crankcase vapor oil. if you disconnect the EGR controller from the exhaust manifold, and replace the gasket with a solid copper or aluminum sheet, then remove the intake and crossover tube, and clean them REALLY REALLY well, the soot cake will not return. if you then remove the large valve under the air filter, and replace it with a straight piece of 3" intake duct, and cap the vacuum hoses off, your car will reward you with more horsepower, and higher MPG's. be sure and clean out the nipple that feeds manifold pressure to the alda, or remove the alda altogether...
:D

as for the wet tubes, the turbo COULD be sending motor oil to the intake...
remove the crossover tube, and watch the output while someone revs the motor above 2500 and holds it, see if oil is spraying out...

One day I'll remember that...

CARBON/TURBO?
 

THANKS for the help guys,i was thinking it might be turbo sending oil into the cross over pipe .I would like to remove the big valve under the air filter,what does it do? ,will it cause any problems in the future??.I THINK ITs NOT BURNING THE FUEL PROPER sorry caps...after i changed the glow plugs and rebuilt the injectors ,fuel filters.i started it up it took a bit until air was purged out let it warm up but it feels like it bogs down (TO MUCH FUEL)when i give more fuel then causes exhaust smoke. BUT DOES SOUND BETTER NEW INJECTORS.. o2 sensor ??/CAT converter?? WHERE TO GO FROM HERE??THANK YOU RICK

As soon as you buy my 1987 Champagne 300SDL, it will be engrained into your forehead forever more.....:D

THANKS
 

HEY I just took the big valve out from under the air box,i notice oil at the turbo about a table spoon,i did rotate the turbo no problems there,but the oil??im worried,the 3" tubing is coated with oil and where the egr is mounted its caked with hard carbon not wet,,i want to remove the valve as you stated but there are so many vac hoses 4 going to each one of the little controllers,not sure what they are called but would love to lose them all i hope i can remember to put them back..rebuild turbo?would it cause the extra smoke??..thanks rick




OP,
the black gook in turbo pipe is EGR soot mixed with normal crankcase vapor oil. if you disconnect the EGR controller from the exhaust manifold, and replace the gasket with a solid copper or aluminum sheet, then remove the intake and crossover tube, and clean them REALLY REALLY well, the soot cake will not return. if you then remove the large valve under the air filter, and replace it with a straight piece of 3" intake duct, and cap the vacuum hoses off, your car will reward you with more horsepower, and higher MPG's. be sure and clean out the nipple that feeds manifold pressure to the alda, or remove the alda altogether...
:D[/QUOTE]