1977 Mg bgt petrol tank problem?
Discussion
Hi, new to this forum which seems to be great! If anyone can help would be appreciated. Just bought my third gt and never had this problem before. Had about a quarter of a tank of petrol and all going fairly well apart from a bit of backfiring! Anyway going down a hill petrol gauge dropped to zero, warning light came on and I konked out. Once back on the level gauge went back up again and off I went. Any suggestions please?
Droob said:
Hi, new to this forum which seems to be great! If anyone can help would be appreciated. Just bought my third gt and never had this problem before. Had about a quarter of a tank of petrol and all going fairly well apart from a bit of backfiring! Anyway going down a hill petrol gauge dropped to zero, warning light came on and I konked out. Once back on the level gauge went back up again and off I went. Any suggestions please?
The cheaper aftermarket fuel tanks don't have baffles, so all the fuel sloshes to the front and the pump cavitates air.Thanks for all ideas so far. I think the previous owner put a new tank in so aftermarket. Have woken to another problem this morning, petrol leaking out of fuel cap/filler hose (filled the tank after the "downhill" incident) - is this something to do with ventilation (non!). The filler cap doesn't seem to be a vented one, probably help to change it?
if the tank needs venting and isn't that could cause the car to cut out, easy way to tell is to remove the petrol cap when it does it and it it starts to run again you've probably got your answer
but I'd have thought if it has the wrong petrol cap it would have been noticed sooner unless it's like the typical MGB and rarely driven and more rarely any reasonable distance
petrol will 'expand' with heat which is why you shouldn't overfill your tank in summer as it will spill out of a vented cap and why you should try to fill your tank when it's cool to get more petrol for your money but remember to allow for 'expansion' when things warm up
but I'd have thought if it has the wrong petrol cap it would have been noticed sooner unless it's like the typical MGB and rarely driven and more rarely any reasonable distance
petrol will 'expand' with heat which is why you shouldn't overfill your tank in summer as it will spill out of a vented cap and why you should try to fill your tank when it's cool to get more petrol for your money but remember to allow for 'expansion' when things warm up
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