Thread: black box on valve cover.
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  #18  
Old 09-21-2014, 10:20 AM
merc300sd merc300sd is offline
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Join Date: Sep 2014
Posts: 7
Quote:
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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