Cranking Then a Hard Stop...Then Cranks

[30 Closed Cab PU]

Originally Posted by jg61hawk

Bill G,,,Not sure yet....Today I used the Nu Rex tool and set timing and "step 3" extrta retard" for easy starting. Problem continued. I then did the manual old way and set timing with test light and by hand... I THINK the problem is gone...just not trusting yet...I'll always post the solution...may have a new situation too. Was running good than developed a backfire like an hour later....CONDENSER??? I'll post,

Did the "backfire" sound like a shotgun out the exhaust, or was it more of a cough at the carb?