Think i've found the leak. Unfortunately it seems to be around the bottom of the injector on number 4 cylinder. I suspect the O-ring might have got buggered when I installed the injectors. I used the recommended silicon grease but they were bloody tight on that bank whereas the other slipped in a treat.
Haven't stripped it to check yet but has anyone else had this problem.
Where is the best place to get replacement o-rings? They seem rather expensive from rimmer bros. Surely they must be pence each?
When I was an apprentice I saw a diagnostic trick for the Bosch setups if a leak was suspected.
A syringe was used to dribble brake fluid around the injector base one at a time with the engine running and if the exhaust gas suddenly went white then it proved a leak at that point saving a lot of head scratching. A quick squirt of water washed the brake fluid off after the job.
Alternatively, if you can hear the leak then a few drops of engine oil around the injector will seal it up and the noise would stop, identifying the suspect seal.
Already identified the leaking injector using a piece of tube as a listening device but I think I might try your method as a double check before stripping it.
Any idea as to where to get O-rings? I presume the material isn't anything special.
Try Landrover agents, anything from Rimmers is an arm and a leg, was speaking to a guy who bought a standard 3.9 cam from Rimmers, their price £185.00. V8 Tuner £85.00.
look under the plenum where the heater pipe should be, there's 4 holes there that need to be plugged
