In a message dated 00-05-03 10:47:24 EDT, you write: > It is caused by routing the line in the engine compartment so that there > is a high spot between the carb and the firewall which can hold a bubble of > vapor. The cure is to locate the line with a dip in it and perhaps to > insulate it with firesleeve which is a good idea in any case.
OK I stand corrected. I'd forgotten about (overlooked) this mechanism. In my own defense, I'll remind you all that the original statement referred to a fuel line that ran from the firewall DOWN to the ground and UP to the carb. It is true that a fuel line that has a high spot in it can collect vapor and effectively block the line. Vapor forms due to heat soaking, or the afore mentioned low pressure on the suction side and gets trapped in the high point. But this is just plane (pun) bad design and easily cured. I still say that a properly designed and executed gravity fed carburator sytem is immune to vapro lock. (Hmmmm, the list of conditions gets longer and longer. How about "My plane is immune to vapor lock"? Uh-oh, now I've probably given myself the kiss of death...) Vapor lock, like carb ice, is hard to pin down because the evidence dissappears by itself. They are both common scapegoats. But don't fall into the trap of not looking for the cause. Someday it'll bite you. John __________________________________________________________________________ ______ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A The Email You Want. http://www.topica.com/t/16 Newsletters, Tips and Discussions on Your Favorite Topics
<<attachment: winmail.dat>>
