Like a bag of spanners
Posted: 31 Jan 2011
The XM starting that is.....It always had a cold starting issue and since I've been running I've done the following:
New and checked glow plugs.
Cleaned all wiring and contacts
Renewed rubber pipework from bulkhead to primer.
Shortened i.e. removed the 'tired' ends of the pipe from primer to filter housing.
All jubilee clipped up nice and tight
New leak off pipe and nipple
Checked/tightened all injector hard piping unions
Replaced filter housing for one off Xantia which no starting issues - used silicone to reseal bottom o-ring
Checked primer bulb non return valve - seemed ok but put new non return valve in and made no difference
Pump came off Xantia which had no issues, although the pump was sat around for about a year but still full of fuel. Pump has no leaks.
Squeezing the primer bulb with engine running forces air bubbles out of fuel filter housing and into pump - this causes no coughing.
Symptoms: Prolonged cranking on cold start, fires, stalls, more cranking, fires runs lumpy stalls. Another crank and she'll fire - keep running but all lumpy till she clears. Hot start is instant and trouble free.
When fitting pump I transferred the pump with housing/mount bracket so timing shouldn't be an issue.
Emissions at MOT were low - so I assume no timing and/or injector issues.
No fuel leaks or weeps when I squeeze primer with engine not running.
Stumped help please
New and checked glow plugs.
Cleaned all wiring and contacts
Renewed rubber pipework from bulkhead to primer.
Shortened i.e. removed the 'tired' ends of the pipe from primer to filter housing.
All jubilee clipped up nice and tight
New leak off pipe and nipple
Checked/tightened all injector hard piping unions
Replaced filter housing for one off Xantia which no starting issues - used silicone to reseal bottom o-ring
Checked primer bulb non return valve - seemed ok but put new non return valve in and made no difference
Pump came off Xantia which had no issues, although the pump was sat around for about a year but still full of fuel. Pump has no leaks.
Squeezing the primer bulb with engine running forces air bubbles out of fuel filter housing and into pump - this causes no coughing.
Symptoms: Prolonged cranking on cold start, fires, stalls, more cranking, fires runs lumpy stalls. Another crank and she'll fire - keep running but all lumpy till she clears. Hot start is instant and trouble free.
When fitting pump I transferred the pump with housing/mount bracket so timing shouldn't be an issue.
Emissions at MOT were low - so I assume no timing and/or injector issues.
No fuel leaks or weeps when I squeeze primer with engine not running.
Stumped help please