Re­place D3 brake pipes

Step-by-step DIY guide

LRO (UK) - - Contents -

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 (, 01733 266690) for the use of its work­shop.

Luke con­nects new brake pipes with his inim­itable flare

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