so, i'm had some smoke + compression problems, discussed most recently HERE, but, i'd really like some input on a possibly (?) related issue(s) with my wagon:

1. when the motor's cold (in the morning), she'll barely accelerate. i mean, she starts up quick, but when accelerating from a stopsign, she takes forever to get up to speed, and the turbo won't really boost her much. after she warms up to normal operating temp, things are much improved.
how come?

2. why is it that if i leave her idling for for a long time, though she may not be smoking much, she'll belch a HUGE cloud of light blue/grey smoke out when i pull away, or if i put her in neutral and rev the engine?

(btw, i've done the diesel purge, glow plugs, fuel filter change, valve adjustment, and alda hose cleaning, so i don't think those are issues...)

would love have some input on this stuff!

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-lee
'83 300CDT (286k)

former proud owner of:
'85 mercedes euro 300TD
'80 mercedes 300TD
'77 mercedes 280e
'80 mercedes euro 250
'82 mercedes euro 250

Have you ever done a 0-60 time on the vehicle when fully warmed?

1. I have a different engine and mine has the same problem. no "instant fix" answers have been found yet, but it coudln't even pull itself up onto our trailer until it got warm the other day.

2. I think most engines do this. Why diesels do it I'm not sure but it's the "fouled plug" effect in gas burners, idle for long enough, temps drop, fuel and oil sort of just get built up in injectors, (spark plugs on gassers), etc. Give it some throttle and things just sort of clear out. Maybe? Makes sense to me anyway.

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~Michael S.~
Past cars:

1986 300SDL
1987 300SDL
1982 240D
1982 300SD


Current:

1987 300SDL

I do not get the blue cloud/light gray.. maybe a haze but no blue.. blue means oil is being burned

Slow acceleration when cold is typical of diesels. Figure at 20 degrees you have about 25hp at start up and gain 5 hp for every 100yds you drive until you reach rated bhp.
Smoke might be bad turbo seals or valve stem seals.

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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

My wagon is a little slow when she's cold. It's normal. What type of oil are you using? If it's heavy stuff it's going to take longer to warm up. Could try some thinner oil.

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Does this formula result in a calculation of about 5hp at 0°F.?

If so........then I concur.