Leaking Injector Pump

G'day all

Have noticed this afternoon that the injector pump on my TD42 has developed a small leak. Drips appear from the rear of the pump just underneath where the injector lines come out of the pump.

Is this a job that requires a service of the pump, or is there somewhere I should look for the leak? I've tightened every nut, bolt and screw I can see but still leaks at the same rate.

Any ideas of price? Anyone in the Pilbara (Karratha) know of the "best" place to go for this sort of work?

Cheers

Wayne