My '71 850 Spider has recently been showing a hot-start issue -- after high-speed (no jokes please, it's all relative) driving for at least 15 minutes, if I shut down the car will sometimes not start, as if there's a fuel delivery or spark problem. Kind of like vapor lock, but I've never had that problem before and haven't changed anything to cause it to start happening.
So far I've changed the ignition coil, rotor and distributor cap, with no effect. I've got a Crane XR700 optical trigger in the distributor, wondering if that might be failing when hot? Also have a Mr. Gasket electric fuel pump but it's definitely running when I crank.
I do have a drip tray under the carburetor which (you would think) should help reduce the engine heat going up to the carb.
Not sure how best to tell if I have a fuel problem or a spark problem, any thoughts?
So far I've changed the ignition coil, rotor and distributor cap, with no effect. I've got a Crane XR700 optical trigger in the distributor, wondering if that might be failing when hot? Also have a Mr. Gasket electric fuel pump but it's definitely running when I crank.
I do have a drip tray under the carburetor which (you would think) should help reduce the engine heat going up to the carb.
Not sure how best to tell if I have a fuel problem or a spark problem, any thoughts?