Six Pack issues and rebuilding by tommyg29

3 minute(s) of a 193 minute read

3-4-2014

Received the replacement float bowl from David yesterday, and got it all running tonight. 

Now for the tuning. Running about 15 inches vacuum at 900 rpm. Timing at about 14 degrees.

The jetting is 66 center and 80s outer, with I think a 7.5 PV.

I noticed playing with the throttle shaft idle screw doesnt seem to do much. I have to force the shaft to get the idle down below 1000 rpm. Maybe the shaft is worn or still gunked up. 

Twisting the main idle screws back and forth up to 1/8 turn each didnt do much of anything to my 15inch vacuum.

Still seems to be running rich, based on my nose.

BTW the secondaries are still disconnected.

And on another note, the glass sight plugs arent a big help IMO. I had two of them break off. I think because I hand tightened them too hard? Had to pull bowls in order to push out the threaded part and any shards inside the bowl.  

3-5-2014

My accelerator pump cam is either black or dark green. I cant tell since its pretty hard to see with the carb mounted.

My secondaries have promax metering plates and I checked for clearance before I reinstalled the bowls since it did look close but there are at least a few mm's clearance.

Chryco, how can I tell if the secondaries are a little open?

I noticed my fuel pressure is at 7 psi, and when I tried to dial it down to 6, cranking the regulator up to 3 full turns back did nothing. Still at 7 psi, if not a fraction more.  

Turning CW here, and CCW there, it seems like no matter what I do on the carb, nothing seems to have any effect on anything. Either my car is a total dolt, or I am, or both. 

At least its running, but still rich, and seemingly no different than before. Not that I was expecting a different car, but I was expecting to be able to dial things in a little better.

A big clue might be I am STILL suffering run-on (dieseling). Could this be because my throttle blades are not closing completely? Remember, now at about 1000 rpm idle, I can force the main throttle a LITTLE bit more to drop the idle to about 600-700 rpm, so I know its not closing all the way on its own.