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Minch90

Member Since: 15 Sep 2017
Location: Gloucestershire
Posts: 236

Decat pipe fitting on 2.4 TDCI

I'm confused by too much researching and conflicting advice.

I have a Demand decat downpipe I want to fit, and I want to save the original cat downpipe (so no chopping it in half).

To remove the original as well as undoing the nuts at each end I need to remove the gearbox cross member, but do I also need to drop the front propshaft or use a jack to move the engine over?

People's experiences much appreciated!

Richard 2.4TDCI 90 - everyday brilliance
S3 V8 Lightweight - in the garage being ignored #newchassistime
S3 lightweight - 2nd car 24V fire risk with a full tilt and the windscreen down
S1 80" - first car fun - 75mph in neutral downhill once #wobblesallround

18th Aug 2024 8:39pm

jbcollier

Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 108

2009 Defender 110 Puma 2.4 SW Alpine White

I removed mine and kept it whole. I remember it was a real bear but i forget the exact details. I know i did not jack up or move the engine.

I checked the manual and, yes, the front driveshaft has to be removed.

19th Aug 2024 2:35am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17443

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

I am sure that I did nothing in respect of moving the engine when I removed mine, I can't actually remember removing the propshaft and gearbox cross-member but I think I must have done so. They've been off and on so many times it's hard to remember when and why.

I do remember that it was quite a tight fit to wiggle out, but was no particular problem. My replacement downpipe is a two-part pipe (from Alive, as I recall) which makes removing and fitting much easier.

19th Aug 2024 8:09am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8051

2011 Defender 110 Puma 2.4 USW Stornoway Grey

X member out and prop off.

One of mine engine mount undone and engine lifted slightly the other didn't need it.

Comes out in one piece. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

19th Aug 2024 8:40am

andy63

Member Since: 30 Jun 2023
Location: north east
Posts: 531

its the 2.2l tdci with dpf that needs the engine lifted to allow the dpf can clearance to be removed, and it helps if you can remove the upper two temp sensors, differential pressure sensor pipes ,and the oxygen sensor, which all helps with the clearance as you manoeuvre it down and out..the third lower temp sensor is far enough down the pipe I think not to be an issue but as its likely to be the easiest to get a spanner on you might as well remove it as well

19th Aug 2024 10:47am

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