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#1
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Turbo adjustment Issue, I'm stumped. (PICS)
hello,
I have been trying to adjust my boost on my KKK turbo, but to no avail. I got it to go from 8psi to about 10, but thats all itll get. I have turned the wastegate adjustment screw around clockwise like 5 times and it still wont boost more. I have a boost gauge hooked up so that i can check it. Anyone know what may be going on? Also, when I accel hard, I hear a hissing sound from under the hood when im driving, but I think it may be the extra air in the intake due to the intake that I stuck on there. also, I do not have the overboost protection on there, It was missing since I got the car, and I have the alda removed. any ideas to what may be up? Any help will be very much appreciated. |
#2
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The sound is the air filter you've got on there. Those kind of filters are very noisy compared to the OE.
I didn't even know there was an adjusting screw on the wastegate so I can't help you out there.
__________________
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 |
#3
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Where's the wastegate adjustment screw on the KKK's? You have a pic of that?
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Matt ------ 1995 E300 Diesel (Die Blau Frau) |
#4
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That may be all you get. The KKKs do not create as much boost as the Garrets.
__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine |
#5
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the adjustment screw is on the back of the wastegate. But still only 10 lbs. that isnt much. Are u running the KKK turbo on ur 240D? Cuz i was most likely misinformed but I thought that the KKK was a T3.
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#6
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Quote:
maddogg20, there is a 10mm lock nut at the base of the adjusting screw and only the screw should turn, not the whole top of the wastegate valve.. EDIT: The turbo is a KKK K26. |
#7
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Boost !
The wastegate hose is of Satan and must be removed for full turbo.
![]() Of course this could grenade the whole thing, but if you want to see what she can do go right ahead. I was amazed with the power after my wastegate hose (unbeknowst to me) developed a leak. For days I could not figure out how the V-8 got under the hood, I was seeing 15+ pounds of boost. I replaced the hose (high quality silicon) and back to >12 psi and all is well. But I know what to do if I ever need it - for short and highly monitoried durations only!
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1985 300 D - turbo 258k miles and still ticking! Black/palamino Alda dustcap modification Eastern NC - |
#8
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You can also just clamp the wastegate hose off to see what kind of max boost the turbo is capable of.
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Jim |
#9
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I loosened the locknut and turned the allen screw in the middle. Thats how I adjusted it.
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