I eventually got around to adding a rear diff drain plug - I wanted to change the diff oil again as the original oil was contaminated and sucking it out is a PITA when there is an obvious place on the casting for a drain.

Requirements:
12mm drill bit
M14 x 1.5 tap
M14 drain plug with new copper washer (mine came from a Skoda Fabia)

Click image to enlarge

Nice, fancy doing mine?  Common sense isn't very common.
_______________________________
2007 Land Rover Freelander2 I6 hse Auto

Jules,



FORTIS FORTUNA ADIUVAT


Nice modification

Thanks for sharing

Paul

Tidy looking job Jules .

Mark 2009 FL2 TD4 SE (Sadly gone)
2007 FL2 TD4 GS (The wifes , gone after 8 great years)
2012 FL2 SD4 SPORT LE(Gone and missing it)
2015 DISCOVERY SPORT 2.2SD4 HSE (For now ?)
2014 Ford Bmax 1.0 ecoboost ( Gone but what next )
2014 Ford Focus 2.0tdci Zetec S

Very neat. I’m going to have a go doing that on my Evoque. Past: FL2 TD4 HSE Auto
Evoque SD4 Dynamic Lux Auto
Present: Audi A3 S Line.

Have done this myself a year ago with no problems. All I am going to say is use a good quality tap

Absolutely. I bought the tap set specially for this job and used the handle from my old general tap set. Jules

Nice one and better than without. Good and tidy job! Thank you for sharing!

Problem is, that inside, the upper level will be about 1 cm above case's base. So 1 cm depth of oil is still remaining.
Not to mention, that if you don't use a magnetic plug, the eventual metallic shaves will remain on that 1cm of oil left, which is lower than the drill's upper lip.
I am thinking to drill in one of the lower nut holes, like Paul has done on the PTU, which is quite on the case's base and therefore the oil will drain about all.

But, in the same time, you can tilt the car on a jack on opposite side and make more oil to drain.

Great Mod and a great guide, something to add to the list,
Thank you. Dave DAVE.
I.A.M. F1rst Driver.
Gone 2003 Discovery TD5 Auto,
Gone 1986 Defender 90 Station Wagon
Gone 1984 Range Rover 3.5 Vogue Manual.
Gone 1970 Series 11A/3 SWB 3.5 V8 Hybrid
Gone 1964 Series 11A LWB Van
Gone 1966 Series 11A SWB Van
Gone 1964 Series 11A LWB Station Wagon,

alex_pescaru wrote:

Nice one and better than without. Good and tidy job! Thank you for sharing!

Problem is, that inside, the upper level will be about 1 cm above case's base. So 1 cm depth of oil is still remaining.
Not to mention, that if you don't use a magnetic plug, the eventual metallic shaves will remain on that 1cm of oil left, which is lower than the drill's upper lip.
I am thinking to drill in one of the lower nut holes, like Paul has done on the PTU, which is quite on the case's base and therefore the oil will drain about all.

But, in the same time, you can tilt the car on a jack on opposite side and make more oil to drain.

I put a powerful magnet on the drain plug

I’d always be worrying that a loose magnet may detach itself from the plug and get chewed up amongst the gears.  Past: FL2 TD4 HSE Auto
Evoque SD4 Dynamic Lux Auto
Present: Audi A3 S Line.

It's put on the outer part of the plug

Ive just put one of those powerful magnets from a computer hard drive onto the plug - might work - time will tell. Jules

Hi Jules

Nice job excellent idea, how hard and how much time did it take to drill obviously using a good quality drill bit.
I was thinking about sucking it out with a pump as to not get any muck inside the diff casing.

Richard