Replace D3 brake pipes
Step-by-step DIY guide
We’re into the final couple of jobs on the LRO Discovery 3 before it can go for an MOT test and hopefully back on the road. The main issue that led to the D3’s extended rest period was a tricky-to-diagnose diesel leak. With the engine idling, fuel would appear as a mist up the back of the engine before condensing and dribbling down, and leaking off the undertrays.
Despite numerous visual checks with the engine running, it isn’t clear where the problem lies. As we’ve got it apart, the decision has been made to replace all the pipes from the engine’s common rails to the fuel cooler – they’re all over 10 years and 175,000 miles old now anyway, and we don’t want to be doing the job again!
When inspecting other common trouble spots under the shell, we also noted that the front-to-rear brake pipes are getting rusty towards the back of the vehicle, where they fit into the plastic clips securing them to the underside of the body.
Although we’ve got the body lifted off the chassis here, Land Rover’s pipe kit allows relatively easy replacement of the affected area, and involves joining the new pipes to the originals that feed down the bulkhead from the engine bay. We’ve got the old brake pipes disconnected from the rear caliper flexi-pipes already (Spring 2018 issue), but the job is otherwise identical to changing the pipes with the body on.
Thanks to Avenger 4x4 in Peterborough (avenger4x4.com, 01733 266690) for the use of its workshop.
Luke connects new brake pipes with his inimitable flare