Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Vaporising fuel.

As someone relatively new to Morgan ownership ( have a 1976 cross flow 4/4) I was delighted to source a restored example. Ive had a few mechanical niggles and last Summer it "died" on a Motorway during one of its longer journies. It seemed to suffer fuel starvation and would not restart. My mechanic said i needed a Weber carb kit, which he fitted......and all seemed fine. Today was one of the hotter days in Ireland this year and whist queuing to get into a Classic car show it started to "die" again. As i drive home after the show, it ran very poorly, until I pulled in and checked all the coil leads etc......then it ran perfectly for 50 motorway miles, until i stopped at my house. Would it start to drive into the garage?! Took ten mins of churning. It seemed like fuel starvation......could it be electrical? Or.....could it be a bad exhaust box? Its started blowing and looks very tired. Any suggestions gratefully received!

I doubt it's the exhaust. First thing would be to insulate the fuel lines, especially if they run alongside the exhaust under the running board. Under the bonnet you may need to fit a heat shield if the fuel lines run close to the exhaust manifold. Agriemach sell a range of products for this.
http://www.agriemach.com/index.php?osCsid=g2skl4o6cmgq7a8c2b004s85h5

But this could also be an ignition problem. If you have electronic ignition, try changing the module. Despite a common held belief that they fail and that's it, failure can be heat related.

Sound very like the problem I had with a '78 4/4. Eventually tracked down to the coil ballast resistor breaking down when it got hot. Needless to say I had gone through the whole fuel system and the rest of the ignition by then.

Thanks a mill for this. Think you're right. The ballast resistor is getting very hot. So have one on order and hopefully will be motoring reliably again soon :-)