I'm going to do the wastegate swap on an OM602 to eliminate all the vacuum transducers/actuators near the airbox. I'm going to order the actuator from ATP Turbo. If I just swap the wastegate and unplug the EGR valve and the other saucer (not proper terminology, I know ) right behind it, can I get away without doing the blocking plate? Also, what's the point of drilling a hole in the turbo? If I just swap the wastegate I don't see why anything else would be a problem and I could clean up the engine bay a bit by getting rid of the vacuum and just having that f-fitting for the line from the injection pump.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

You have to drill a hole in the compressor housing to fit the boost line to the pressure-operated wastegate. Without it, the wastegate won't open.

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Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

I'm pretty sure you can connect the line to one of the unused ports on the intake manifold. That's what I was going to do. Just have to put a barb fitting threaded for the proper NTP size.


I have all the parts for this mod, but I don't think I'm going to need them (looking at different turbo options). I might be willing to sell everything cheaper than what it would cost you from ATP, etc.

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yes, you can just un pipe that from vacuum and it will stay wide open.
When i did my waste gate swap i removed that component and it's guts and used the holes left behind to tap my pressure tube.

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Current fleet
2006 E320 CDI
1992 300D - 5speed manual swapped

former members
1984 300D "Blues Mobile"

1978 300CD "El Toro"

You removed the wastegate? Is that the component your referencing you removed its guts?

__________________
Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

I'm guessing he fashioned a boost signal port onto a plate that caps the EGR valve flange on the mixing pipe.

Sixto
98 E320s sedan and wagon

No need to drill anything… There's a ready-made port just waiting to be used on the manifold.

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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

of the three vacuum components in around the turbo side... The wastegate, EGR valve and the "Intake manifold pressure control valve"

i was referring to the guts of the "Intake manifold pressure control valve"

I swapped he wastegate and just left the EGR valve in place without vacuum.

See picture.

Attached Thumbnails

 

__________________
Current fleet
2006 E320 CDI
1992 300D - 5speed manual swapped

former members
1984 300D "Blues Mobile"

1978 300CD "El Toro"