Flexi ex­haust re­pair

Car Mechanics (UK) - - Tales From The Workshop -

Sound­ing like a mo­tor from a de­mo­li­tion derby, this 2007 Ford Ka could be heard be­fore it was seen. There was lit­tle doubt as to why the owner had brought the mo­tor to us: the ex­haust had frac­tured and the pipe was now in two halves.

How­ever, the part that had failed was not ac­tu­ally part of the ex­haust, but the cat­alytic con­ver­tor. The flexi pipe comes com­plete with the cat, which not only meant it was go­ing to be ex­pen­sive, but that the labour to re­place it would be higher. The fail­ure was not so much down to cor­ro­sion as the con­tin­ual move­ment of the pipe as the en­gine flexed in op­er­a­tion. For­tu­nately, af­ter­mar­ket parts man­u­fac­tur­ers have a so­lu­tion: a short flexi re­pair sec­tion that fits into place af­ter cut­ting off the old flexi pipe and un­bolt­ing the flange.

The bro­ken sec­tion of pipe was re­placed with the re­pair sec­tion, ex­tend­ing the life of the cat.

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