Hi,
Having been away I somewhat lost the drift of this subject as it seems to have veered towards electrics - possible but unlikely. A possible time related electrical fault would either be condenser on the old style "Kettering" system or overheating with an electronic system. Anything else would likely be permanent once it had first occurred. An extreme example on an early Mini in the 60's was a cracked rotor arm that gave intermittent problems, usually after a run when oil came up the rotor shaft, entered the crack then burned as the oil and dirt gradually formed a new spark path and eventually formed a carbon path to earth. My money would be on vapour locking somewhere in the fuel system. I have had my own experience of total frustration with our Beauford, which would go for about an hour then splutter to a halt, usually when overtaking something up a hill! It did not respond to anything I did to the fuel system when operating as a direct copy of that laid out by Mr Ford but it was only when I ignored the Ford layout, finally engaged brain and realised that vapour could accumulate in one if not more of the fuel filters on the supply line to the injector rail. This was cured by remounting each of the filters so that each flow path/axis was vertical and would thus self-bleed upwards along the fuel line until all vapour was eliminated. The final thing was to move the large inline filter that immediately precedes the fuel rail from the back of the car to the front scuttle and mount this vertical as well. Since that time I have not had any further problems - yet! As for a carburettor system, it too is likely to suffer from vapour lock, if anything more so than an injection system as the supply pressure is lower and thus has a tendency to turn to vapour at a lower temperature. Once again look for any possible vapour/air accumulation areas within the supply line to the carburettor and change as necessary to make them self-bleed. I am aware that Old Q recommended that the large in-line filter for the H4 should be horizontal on the nearside suspension turret and this now worries me. At some time I intend to move this to the vertical as I have once experienced what felt like fuel starvation on a very hot day and I know that the rail pressure is spot on. The problem is that the retaining nuts are hidden behind the suspension unit - rats! Hamish -- -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
