Wastegate question...

[Freddie's Buick]

Kinda dumb...

With engine off and wastegate arm fully extended, is the flapper closed or open?

 

[b4black]

With engine off, the wastegate rod should be retracted and closed. Unless you are using the "normally open" design that came factory on 1981 models (only 1981).

 

[Freddie's Buick]

I don't know what type it is but it seems like the P.T.O. type. It has two vac ports. Did'nt the '81 come with just one vac port?

Reason why I asked is because I modded it for adjustment as the drawing here on the board and I lost track of the turns.

I figured if I knew what position it's supposed to be with the engine off it's a good starting point.

 

[b4black]

You should have to pull the rod about 1/2 an inch to get it over the post on the wastegate. You might want to go a little less than that. You want to start with too little boost than too much.