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Old 04-19-2010, 09:47 PM
300SD81's Avatar
1981 Mercedes-Benz 300SD
Join Date: Aug 2006
Location: University of Georgia
Posts: 1,080
Originally Posted by polarisrmk View Post
The pressure switch on the intake manifold grounds out the valve and the 12v to the valve is constant in key on position? Just want to make sure i understand this correctly....
Ich liebe meine Autos!

1991 Mercedes-Benz 560SEL | Megasquirt MS3-Pro | 722.6 transmission w/ AMG paddles | Feind Motorsports Sway Bar | Stinger VIP Radar | AntiLaser Priority | PLX Wideband O2 | 150A Alternator | Cat Delete
1981 Mercedes-Benz 300SD | Blown engine, rebuilding someday...
1981 Mercedes-Benz 300SD | Rear ended, retired in garage.
2009 Yamaha AR230HO | Das Boot

Excessive speeding? It ain't excessive till I redline!
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Old 04-19-2010, 09:54 PM
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Join Date: May 2009
Location: Salt Lake City, UT
Posts: 464
sweet.... I snagged the valve off the car today and have been spending all day cleaning up the filthy engine.
1987 300D 180k
1985 300SD 330k Helga
1992 300D Lola 269k- Sold
1986 325 coupe Bessie >300k Original engine(ODO Broke) sold
2006 2500HD Druamax Linda- Tows boat and looks pretty in garage thats about it
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Old 09-21-2014, 10:20 AM
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Join Date: Sep 2014
Posts: 7
Originally Posted by bluetypewriter View Post
I took apart mine and repaired it according to this walkthrough

Transmisson Vacuum Valve Lever Replacement

EDIT: Just read that the engine is going into a boat. Disregard what I said.
I looked at the walk through and had one question as to which ports are used for the transmission vacuum port and the main vacuum line. Looks like the top two are used, left for the main vacuum and the right one for the trans. Is that correct? Mine is an 83 300SD
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Old 09-21-2014, 07:09 PM
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Join Date: Jan 2014
Posts: 82
Originally Posted by 300SD81 View Post
The box is for the EGR, I removed mine.

Thats good news. I hate the way it looks in the bay. Cant wait to delete it? What else can I delete??? Lol
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