coughing and sputtering

[65swb45]

got a vacuum guage and connected to the brake booster line and i get a reading right around 16 inches Hg.

Well, that's a start. Now we need to know stuff like:

16" at 400, 600 or 800 rpm?

Does vacuum go up at higher rpm?

What about vacuum at lets say 1400 rpm.

Is the needle reading steady, or does it fluctuate.

Vacuum is also ignition sensitive, so timing and dwell are still issues we need numbers on.

In other words, vacuum numbers are relative; they don't exist in a vacuum!

 

[Pighead]

16 inches of vacuum at idle is decent. Think the manual says 17 or 18 is normal.
You have two vacuum lines to the dizzy? Hmmm...I thought a '73 would have only one.
A carb rebuild couldn't hurt, forget the secondary diaphragm though, you should still have the mechanical secondary in a '73 carb.
I would investigate the distributor diapragm also, make sure it's not leaking, figure out what the two vacuum lines do. You may have a later model distributor.

 

[rcb]

what i meant to say about the vacuum lines is that there are 2 out of the carb that go into one line then to the dist.

also, last night i took the top of the carb off . the bowl had very vary little trash. but i did find that the power piston was stuck. i'm going to order a rebuild kit today.

 

[rcb]

i ordered a carb kit today and will be here tomorrow. how tough should it be to get the jets out? they don't even want act like they're going to come out

 

[Pin_Head]

If they don't come out easily just leave them in and dip the whole thing and then blow it out.

 

[rcb]

i have everything soaking over night. i'll check them in the morning and if i still cant i'll just blow everything well

 

[65swb45]

Use the jets in the rebuild kit to find a screwdriver in your collection that will fit the jet EXACTLY! This is the best way to minimize your chances of stripping out a jet.