Could be a split fuel pipe in the tank.
I had an issue where it wouldn't start on first turn, but would after a couple.
It also had the effect that i couldn't use the last quarter of the tank, and would cough and splutter as it reached that low.
I've had the same on both mine,
there is a small length of pipe - some are plastic, some rubber - between the fuel pump and the outlet, this can rub against the hangers for the pick-up, and eventually rubs through.
To check, you'll need to remove the pump from tank - which can be a pain.
Under the boot carpet and liner, there is an oval shaped plastic cover held with 4 crosshead screws.
Remove the panel to get access to the pump and connectors.
Unclip the electrical connectors and remove the guage sender first - if you don't the pump assembly won't come out. you'll need to turn the sender about 90 degs anti-clockwise with a suitable tool.
With the fuel sender out of the way, unclip the large pipe connector and remove
Next undo the 10mm nut holding the retaining plate for the small pipe connectors - BE VERY CAREFUL AS THE SMALL PIPE ELBOWS ARE FRAGILE AND NIGH ON IMPOSSIBLE TO GET HOLD OF.
carefully remove the 2 pipe elbows.
with the connections out of the way you'll need to undo the large retainer nut.
You may need to use a drift of some sort, as they're on pretty tight.
Once the retainer is remove the pump will lift out - BE CAREFUL AS THERE WILL BE PETROL LEFT IN THE PUMP ASSEMBLY
You'll see the pipe that connects between the top of fuel pump and the outlet, check it has no splits.
If split, it'll need replacing or repairing.
Replacement is a reversal of removal.
NOTE : There are arrows on the fuel tank and top of pump assembly that should line up to make sure the pump is in correct position
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Last edited by celadon; 15-10-13 at 09:57.