Diesel Injectors

[fbs1000]

Morning all hope everyone is well.

Yesterday I had my car serviced ( Rover 75 conni with the BMW engine ) The mechanic told me he thought it was running a little rough and did the following :-

Engine running and pulled off each plug to the diesel injector ( I guess he means the power ? ) the car started to judder when he pulled out 1 , 2 and 4 however when he pulled out 3 it made no difference to the car at all. Does this mean I need a new injector ( common cause ) or could it be one of the following :-

1:- Firing out of sync
2:- no power going to the electric bit on top.

I have manage to locate 2 x diesel injector for the grand old price of £30 delivered, yes you read correctly £30. But would it be wise to attach it to a T4 first to make sure everything is ok with the power side and it's not firing out of sync. Also can you remove the pwer bit whilst the car is running , is this advisable?.

Many thanks again all and I hope each and everyone of you have a great weekend.

Richard

[apywell]

Originally Posted by fbs1000

Morning all hope everyone is well.

Yesterday I had my car serviced ( Rover 75 conni with the BMW engine ) The mechanic told me he thought it was running a little rough and did the following :-

Engine running and pulled off each plug to the diesel injector ( I guess he means the power ? ) the car started to judder when he pulled out 1 , 2 and 4 however when he pulled out 3 it made no difference to the car at all. Does this mean I need a new injector ( common cause ) or could it be one of the following :-

1:- Firing out of sync
2:- no power going to the electric bit on top.

I have manage to locate 2 x diesel injector for the grand old price of £30 delivered, yes you read correctly £30. But would it be wise to attach it to a T4 first to make sure everything is ok with the power side and it's not firing out of sync. Also can you remove the pwer bit whilst the car is running , is this advisable?.

Many thanks again all and I hope each and everyone of you have a great weekend.

Richard

Hi Richard

I had a similar experience with my diesel 75. It had been running rough over many months till I decided to get something done about it. Took it to a local BMW garage. They plugged it into a hand held diagnostic thingy. It seemed to show some problem with the injectors. Anyhow, when he unplugged injector No1 it made no difference to the running (still lumpy) but when he unplugged the others in turn the engine nearly cut out. I left it at that and took a Bosch garage for second opinion. They confirmed that No1 injector had problems. They sent it away to see if it could be repaired, but I ended up with a new one.

[sworks]

unplugging whilst running isn't really a good idea, try a leak back test