Thunderbolt IV ignition was dead. Optical sensor was a bit rusty. No Spark after a winter layup.<br />Engine has less then 70hrs. 1996 5.7L<br /><br />So far replaced: <br />Thunderbolt ignition with V version. <br />Optical sensor + rotor cap.<br />Plug wires + ignition coil. <br />All filters.<br />Cleaned carb> it was clean anyway. <br />Set float levels. Fresh fuel.<br />Everything seems to be just fine.<br />Water temp 140, choke opens. <br />Commpression test fine.<br /><br />Engine starts and runs perfect.<br />After about 5-10 mins at idle she starts to run rough, sounds like the ignition system is trying to change timing to compensate for stalling engine?<br />Then she dies blowing a lot of fuel back out of the carb. (4 barrel Webber).<br /><br />Now starting is very very hard or impossible.<br />Sounds like the engine is flooded.<br />When/if U get her running again the time to stall is a lot less. eg: 1-2 mins.<br /><br />Leave her overnight or 1/2 hour or so and the same will happen.<br />Starts first kick, runs for x then stalls.<br /><br />Thanking you in advance El Ray.
