hi there i seem to be having some probs with the carb on hotter days , its alright on the open road , but when your in town idling around and give it the boot it will go alright for 7-8 seconds and then starve for fuel , its not a fuel pump or line prob as it is fine when thrashing the hang out of it on the track , im picking the carbs getting too hot idling around and locking. has anyone struck this before and if so what have they done to lessen the effect or stop it , your inputs are appreciated
With flames like that coming from under your bonnet, there's probably more to the problem that vapour lock
I got this a lot in my XD on hot days with my older carb/manifold setup. I'd let it sit for a few minutes, then it would be AOK.
The one key thing to help you is a carb spacer. This stops the heat transfer between the manifold and carb, therefore reducing fuel heat/boil and the resulting vapour lock.
DON'T use an aluminium or metal spacer as these conduct the heat really well! The best spacers are made from plastic or wood. I don't recommend you whip one up out of chip board!! Look on "ebay motors", I picked up a new four hole 2" job for US$22 +p/h. With your bonnet clearance, you'd probably be best suited to a 1" tall one.
i had a problem like frdpwr suggested on th xd
the 351 was where a 4.1 should have been
the 4.1 fuel line originally came in the engine bay behind the wheel
the v8 line should come in in front of the wheel
nobody changed this when doing the engine swap and it would boil the fuel every now and then and pose a bit of trouble , it took me about a month to figure it out