I've used them...but its really not difficult to adjust the wastegate the proper way...and you do need to check it under full load while moving not sitting in the driveway.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

I tried to do the proper wastegate adjustment but I couldn't figure out how to get the wastegate cover off ( I have a Garrett) so I just bought a Dawes boost controller. It works fine. I have the turbo off of the good motor from my wrecked '85 and I'm going to try to figure out how to get that cover off while I can easily manipulate the turbo to make it easily accessable.

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Seth

1984 300D 225K
1985 300D Donor body
1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!!
1980 300SD 311K My New Baby.
1979 BMW 633csi 62K+++? Dead odo

If you have the garrett turbo, you need to have a 1/16" bleed hole after the ball to let air out of the wastegate. If you have the KKK, there is already a bleed hole on the wastegate cap.

when you see how it goes in you will slap your head for not seeing it.

there is a snap ring that fits in a grove in the lip on the raised area on the outside of the canister....you need a tiny screwdriver to catch and lift the edge of the snap ring....it its clean its easier to see.

__________________
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

I agree.

I had the pleasure of removing the wastegate diaphragm cover on a workbench and turning the shaft three turns.

Raised the boost from 9 psi to 13.5 psi!

I'm betting that the 13.5 psi is more than required for the available fuel, but, still need confirmation on an ALDA that is removed and tested.