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#1
10-12-2010, 11:09 AM
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Did the swap and now theres no power
So I put the engine from the 300SDL in the 350SDL body, it idles smoothly off the line it feels normal but now there is no power as if the turbo isn't kicking in. Any ideas?
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OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR, ONLY IN A BENZ  89 560SEC 90 350SDL (Rudolph) 91 350SDL (300SDL drivetrain) 87 BMW 635CSi (Swanhild) 89 BMW M6 (euro) 99 Suzuki Hayabusa (Only the fastest thing ever) 
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#2
10-12-2010, 12:43 PM
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Be sure that the pressure from the intake is making it to the ALDA.
__________________
 Gone to the dark side - Jeff
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#3
10-12-2010, 01:38 PM
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Aren't the wastegates and/or overboost/enrichment "backwards" from each other on .96x vs .97x install? Check that it's working right. I "think" I "read" something like that on the internets, but I don't have time to research the CD right now.
And double-check ALDA/plumbing as mentioned.
__________________
James Marriott 2003 Buick Regal 1983 300D (228k, frau Auto) 1996 Suburban K2500 (192k, 6.5 turbo diesel/4WD towmaster 10,000) www.engineeringworks.biz 1987 300SDL junker 170k 1982 300SD junker, 265k
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#4
10-12-2010, 01:43 PM
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So I looped the vacuum line from the intake to the alda and now its drivable, now my question is on the 87 there are two of those modules and I know one is the overboost protection, the 91 only has one which, should that setup affect anything in any way as I've run everything as per 350SDL
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OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR, ONLY IN A BENZ 89 560SEC 90 350SDL (Rudolph) 91 350SDL (300SDL drivetrain) 87 BMW 635CSi (Swanhild) 89 BMW M6 (euro) 99 Suzuki Hayabusa (Only the fastest thing ever)
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#5
10-12-2010, 01:57 PM
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How long was the 3.0 engine sitting for?
__________________
1982 300GD Carmine Red (DB3535) Cabriolet Parting Out 1990 300SEL Smoke Silver (Parting out) 1991 350SDL Blackberry Metallic (481)  "The thing is Bob, its not that I'm lazy...its that I just don't care."
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#6
10-12-2010, 02:23 PM
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Its been sitting for no more than 2 months, I've done a bit more work and it seems that the plug at the Engine overload protection switchover valve is getting a constant 12 volts, now I need to figure out why and I can't seem to find any decent wiring diagrams to test the circuit.
__________________
OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR, ONLY IN A BENZ 89 560SEC 90 350SDL (Rudolph) 91 350SDL (300SDL drivetrain) 87 BMW 635CSi (Swanhild) 89 BMW M6 (euro) 99 Suzuki Hayabusa (Only the fastest thing ever)
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#7
10-12-2010, 02:59 PM
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Is it getting +12vdc and ground, or is the ground switched.
With no voltage, the valve should be open from intake side (bottom) to alda side (middle). With 12v, it should be open from middle to vent/top. No, the turbo wastegate on the '91 SDL (603.970) is the same pressure-actuated as the 603.96x donor.
__________________
Gone to the dark side - Jeff
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#8
10-13-2010, 11:10 AM
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Quote:
__________________
OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR, ONLY IN A BENZ 89 560SEC 90 350SDL (Rudolph) 91 350SDL (300SDL drivetrain) 87 BMW 635CSi (Swanhild) 89 BMW M6 (euro) 99 Suzuki Hayabusa (Only the fastest thing ever)
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#9
10-13-2010, 12:20 PM
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If the ground is a solid brown, it shouldn't be switched. If any other color or brown with a stripe, it's supposed to be switched which makes sense if it is powered (grounded) directly by the overboost pressure switch on the plenum (1-wire).
__________________
Gone to the dark side - Jeff
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#10
10-13-2010, 01:10 PM
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Quote:
__________________
OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR, ONLY IN A BENZ 89 560SEC 90 350SDL (Rudolph) 91 350SDL (300SDL drivetrain) 87 BMW 635CSi (Swanhild) 89 BMW M6 (euro) 99 Suzuki Hayabusa (Only the fastest thing ever)
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