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On Thu, 2002-05-30 at 19:15, Mark Fuhriman wrote: > I hate to make wild guesses on stuff like this, but.. > Maybe there is a potential for a temperature-dependent tendency for the head > temp sensor (or something in that circuit) to open intermittently. Do you > have a spare to try? (Don't try this at home, kids, unless your regular > tune-up items are all up to spec.) > > >I have recently read somewhere that vapor lock can happen due to a faulty > >pressure regulator. The regulator doesnt hold the pressure in the lines, > >all the fuel drains out of the lines in the engine, and...bam your vapor > >locked. > > But turn the key off and on a few times to build up pressure, and the system > is full of fuel, with any air being forced out of the lines by the 30psi of > pressure. I don't think vapor lock is possible with the FI. > My '71 does this on a hot day, and I just turn the key off and on a couple times real fast, and it starts right up. Also, you might want to check the trigger points in the base of the distributor. If they are dirty, they might be sticking when hot. -- Russ Wolfe '66 FB MT (It drove) '71 FB AT '65 Bug (not running) russw@classicvw.org http://www.classicvw.org ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/