W126

86 300SDL grasping at straws here

I am having a meltdown here all the usual suspects are rounded up. My 1986 300SDL (that I have spent more time working on than driving no kidding) is a great car has me perplexed. It started and ran fine one day the next started and idled fine but gives me about 100RPM increase when I push the throttle with foot or under the hood so all the linkage is moving the way it should.

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1984 300sd Vacuum Readings

1984 300sd: Need to know vacuum spec. readings other than the'ol 20-23"
from the main vacuum hose.

Does anyone know the readings to:

transmission modulator value= 15-20"?

shutoff valve value= NEED THIS ONE

door actuator value

ignition switch

door check valve at firewall

Are the readings all suppose to be the same? 20-23 in of vacuum

I have Kent's books but do not see vacuum readings at the different branches of different systems aforementioned.

Thanks, Rafe.

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85 300SD water leak left rear floor

When it rains or snow collects on the car, my 85 300SD collects a BIG amount of water in the area behind the driver's seat on the floor. The passenger side (side of the battery tray) is completely dry. The sun roof seals are dry and need replacing. Could that be where the leak is coming from? I read there are drainage holes around the sunroof and they get plugged...? The car is 80% restored after sitting outside for about 13 years. The engine is a factory replacement, but after purchasing it from a wrecked condition, there were no written records of maintainence.

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