Overfuelling

[Jon S]

Hi,

If you wanted to overfuel at 2.4TD surf, how would you do it?

This thread continues on from the 'Brain Teaser' thread.

We suspect that someone has changed the fuelling settings to compensate (perhaps in error) for putting the K&N air filter on.

Some people say that there is an adjustment in the vacinity of the throttle on the engine. Does that make sense to anyone?

How do I know where the fuelling adjustment should be set?

Thanks,

Jon.

[Guest]

Hi,

If you wanted to overfuel at 2.4TD surf, how would you do it?

This thread continues on from the 'Brain Teaser' thread.

We suspect that someone has changed the fuelling settings to compensate (perhaps in error) for putting the K&N air filter on.

Some people say that there is an adjustment in the vacinity of the throttle on the engine. Does that make sense to anyone?

How do I know where the fuelling adjustment should be set?

Thanks,

Jon.

It depends if it is a 2LTE or 2LT engine. On the 2LTE the only adjustment on the pump is the maximum fuel flow rate which I think is a screw on the rear of the pump. If it is the 2LT I think there is quite a lot of adjustments that can be doen on the pump.

If it is a 2LTE then something that might help is disconnecting the battery for at least 15 mins which should reset the ECU to standard settings.

Alternately it could be the engine temperature sensor that sends the signal to the ECU and is sending a duff signal, it could be an injector that is not closing correctly and causing the overfuelling.

I think that your best bet would be to find a Diesel engine specialist. These guys know a lot more than the main dealers and can generally work on most diesel engines.

Cheers

[Jon S]

Lucky,

Thanks again for your help.

From information collected from the various testing, I can say for some certainty that the problem seems to be down to excessive crank case pressure. When I pull the dip-stick out, the pressure is vented quite visibly. This pressure could be caused by either a blocked crank case breather, or gas that is excaping past the piston rings.

I am going to throw it back to the dealer and get them to sort it out under warranty.

Jon.

[Guest]

Lucky,

Thanks again for your help.

From information collected from the various testing, I can say for some certainty that the problem seems to be down to excessive crank case pressure. When I pull the dip-stick out, the pressure is vented quite visibly. This pressure could be caused by either a blocked crank case breather, or gas that is excaping past the piston rings.

I am going to throw it back to the dealer and get them to sort it out under warranty.

Jon.

That's the best Idea. You might just want to pull the breather off the top of the rocker cover and see if the venting stops or reduces. Any excess crankcase pressure is generally expensive to fix unless it is the breather. If it's under warranty then it's best to get the dealer to do it.

Good luck