Ok I have a v6 auto gallant that won't start. Owner was driving and t-belt broke at red light. Car ran ok before. The shop put a belt on and cap/rotor. Won't start-tell guy it valve related. Sells car to my buddy(mistake I tell em). In my shop now, lucky me.
So I have spark, spark tester, plugs were fuel soaked, replaced, each cylinder has 145++ lbs compression. The timing marks line good at tdc. Rotor button points to one on the cap. Took off valve covers check each cam and watched each rocker arm open/close the valves. All seamed smooth. Reassembled all and cleaned intake. Still no start. The only clue I have is that during cranking it sounds smooth/normal till I stop, then it does a short backspin. One time it even backfired thru throttle body. Usually I'd suspect timing issue but. Stumped and running out of patients. Can someone help? Thanks. Paul
Sunday, March 10th, 2013 AT 4:32 PM