I dint know if postig a link to anither site is allowed but Here is a link to the original thread on the fe forum.
http://www.network54.com/Forum/74182/message/1365864228/For+crying+out+loud+now+it+won%27t+run%2C+any+ideasIt from needing a lot of advance to backfiring etc.
Here is what I did yesterday.
Today before I did anything I pulled the vc's off and turned the engine over to see if I had a stuck valve, bad cam lobe, bent pushrods, etc. everything checked out ok. Then I tried starting it, it started but had to be "pedaled" if to much fuel was given it would die, the same with not enough. It had a small fuel leak at the primary shaft so I changed the carb to a rebuilt spare 4100, after changing both spacer gaskets. It ran about the same. Checked that distributor was in correctly at tdc. It was. It wouldn't run. It would start but wouldnt stay running on its own. I called Brent and he gave me a couple pointers. I dropped the dist in 20* advanced as he said and it lit off. I turned the dist cw and it finally stayed running. I adjusted the idle mixture screws, set the idle speed to 750 and started to check timing. It was aUt around 20 initial so I started to retard it and it died instantly. Advanced it and after several attempts got it to start. From that point on no matter what I did it would die if I did anything with the timing. Then it went back to not starting. Once it cooled down it would start with some effort. It pretty much won't start at all warm. It has not backfired since the different carb was installed. In fact,other than a slight hesitation off idle, it sounds much "stronger" than when it was running great before all this.
I' checked to see if the balancer had slipped but now don't believe that. Imade 2 reference marks on the spacer when I put the new timing chain in before I put the engine in the truck. They still line up when on compression stroke of #1.
Does anybody see anything I've missed? Could have something major happened coincidentally at the same time as the distributor change? Before all this nonsense this engine would smoothly idle as low as 500 rpm.
I can tell that this is a performance based forum, if y'all don't answer questions like these I completely understand. I also see that several people from the other forum are in here as well, I apologize for y'all having to read this again.
Thanks in advance
Will