[Mgs] Fuel pump failure

[PaulHunt73]

You need to check the electrical connections first, right on the 12v and earth terminals making sure there is 12v with the ignition on.  If not then that is the cause not the pump.

If you see 12v then quite possibly the points have developed a spike and pit, and stuck together.  When this happens there is a single click when you turn on the ignition, and another when you turn it off.  Relatively easy to clean them up and check the adjustment, which may involve removing the pump chamber from the solenoid body.  

Don't dismantle any further, and don't replace the diaphragm if it doesn't need it, replacement parts are often not as good as the originals and sometimes don't even fit properly.  If the diaphragm were faulty the pump would be leaking fuel.

More info here:
http://www.mgb-stuff.org.uk/pumpr.htm

PaulH.

  ----- Original Message ----- 
   
  Now my question is what is best for the final repair.

  New set of points - available via Moss Motors a.o.

  Convert to electronic points? - Is in backorder @ Moss now. 

  Replace the diaphragm as well? The diaphragm still looks fine. 
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