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[ChrisB]

Hi

My 2.5TD Elite Estate starts straight away when the engine is cold enough to fire up the glow heaters, but when it's warm and the glow heaters don't come on it takes 5 to 10 seconds of cranking to start.... This seemed to happen after I'd changed the fuel filter, so I'm thinking 'airlock'...... But would this manifest itself only when warm and if it is and airlock what's the best way of getting rid of it?  I've undone the bolt on the top of the filter housing and get fuel out when the ignition is on....

Once it's started it coughs a bit for 10 seconds or so and then runs fine from then on
 
Thanks!

[TheBoy]

next time, pour a big jug of cold water on injection pump, see if that cures

[Omegatoy]

could be leak off pipes, allowing fuel drainback??

[ChrisB]

Hi

Thanks for the advice - I'll try that and report back.  I assume the injection pump is fairly easy to locate?  If you can give me some clues as to where it is I'd appreciate it as the engine isn't covered in my book.

Cheers

[TheBoy]

Hi

Thanks for the advice - I'll try that and report back.  I assume the injection pump is fairly easy to locate?  If you can give me some clues as to where it is I'd appreciate it as the engine isn't covered in my book.

Cheers

under the egr valve

[Seth]

next time, pour a big jug of cold water on injection pump, see if that cures

A seemingly common fault this, mine was exactly the same!

If pouring cold water over the pump does the trick, it's likely that the fuel temp sensor is playing up. This is within the pump itself, and therefore not user-serviceable.

I've 'cured' mine simply by changing the battery, the greatly increased cranking speed allows a pretty good warm start. The battery must be absolutely 100% on a tractor to effect good warm starting.
'PM' me if you're unsure.

[Seth]

PS Chris,

The glow-plugs do not activate once the engine's warmed-up. Another of BMW's 'good' ideas ... !

[ChrisB]

Hi

Just an update - and to say thanks for all the advice.  The problem was the injector pump, which is being overhauled and refitted - thanks for the input on this....

A further question - whilst all the inlet manifold etc. is off, is it worth changing the starter motor whilst its easy to get to, or am I just wasting money?  There haven't been any problems with the starter, but I seem to recall a thread that suggested they could have problems?

Thanks again

Chris

[Seth]

Good luck Chris,
The pump'll set you back a few quid, unless you know someone in the fuel-injection business. Mine was changed earlier in the year - a cool 1200+ quid - I must be mad ... !

Regarding the starter motor, personally, I'd leave well alone if it's working okay. It might, however, be a good idea to check the fixing bolts and terminals for security while they're reasonably accessible.

Keep us posted fella!

[mickfit]

Hi mate
          I would change heater plugs if ur in that far, very easy done... Did it my self a while back, now the only problem i had was the gaskets for the induction manifold fell to bits wen I took it off Had to order and wait for new gaskets from vauxhall.....

But gud luck mate