|
|
|
#1
|
|||
|
|||
'85 300tdt runs lean with ALDA maxed out.
My 300 TD Turbo is still pretty slow (0-60 aprox. 17+ sec.) It seems to run lean even with the ALDA adjusted to let max. fuel flow. I took the ALDA completely off and it only seems a bit rich/smoky before the turbo spins up. Is there a mixture adjustment that I can change besides the ALDA to get more fuel? Am I on the right track?
|
#2
|
|||
|
|||
What makes you believe you need more fuel? The IP full load setting is rarely set too low.
Ever check the engine for camshaft and IP timing? Set the valves recently? |
#3
|
||||
|
||||
We seem to think the '85s are lean stock, heck I only had 8psi!
__________________
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] |
#4
|
|||
|
|||
If the alda is set to make the engine run as rich as it can (adjustment screw all the way out. It should run rich even if the valves are a bit out? It is a used motor and the alda adjusted top its max before I got it. I Don't know when valves, or inj. timming was done. I took it to a mechanic friend who said all I need to do to get up to speed is adjust or replace the alda. I also did the Blowby test described in this forum and there seems to be very little blowby.
Thanks for your help. |
#5
|
||||
|
||||
whats the miealge on the motor? alda on higher mileage engines tend not to do as well- my 274k replacement one doesnt compare to my original 170k one, the car is definitly slower and this one is maxed out with no smoke.
__________________
1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350 |
#6
|
|||
|
|||
Problem #1. Quote:
Problem #2. Just to prove to you that the "mechanic friend" is clueless, you removed the ALDA completely and the vehicle did not change it's performance. Therefore, the ALDA has nothing to do with your problem. |
#7
|
|||
|
|||
This is a California motor and the turbo setting seems pretty conservative. My makeshift pressure gauge is not very accurate but, I estimate about 6-8 psi boost. Can this be adjusted? I just thought I should start with the mixture since it seems lean.
|
#8
|
|||
|
|||
Mine is at 25X K
|
#9
|
||||
|
||||
I've been wondering that too, my car isn't as fast as my dad's (doesn't feel as powerful) it has 246k, quite a bit of blowby etc... but starts down to 0F pretty readily. My dad's has almost no blowby at 274k, it may have been rebuilt at some point, we don't know....but it can start at 10F with 2 glowplugs and 50 seconds of cranking. (yes it actually did that, and started!! )
Oh well, when my engine dies I'll just have it rebuilt or find a better one. I'm hoping to make it past 300k before it becomes "ill".....
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#10
|
|||
|
|||
I gess I will have to look in to this more I am a little hesitant to mess with this stuff it seems pretty involved. Is this a common problem? Should I hire it out? What should I expect to pay if I do?
|
Bookmarks |
Thread Tools | |
Display Modes | |
|
|