Don't know if there's a "how to" on the forum but thought I'd write up a quick guide.
It's a very straight forward job and only basic tools are required.
*I hold no responsibility for damage or injury which may occur in working on your own car and if in doubt, please take it to your nearest reputable car garage*
My original sump had taken a hit or two in the past and there where micro fractures visible but luckily, not leaking. But I knew it was a ticking time bomb so had to be dealt with sooner or later....
First of all jack up front end of the car. I used ramps as it's quicker and easier.
Drain all oil from sump via the 17mm hex sump bolt into a suitable container.
Next you will see a series of M6 bolts (10mm socket) There are 16 in total. Undo them all and gently drop the sump down.
You will then see something that looks like this:
But be CAREFUL, and take your time aluminium is a very soft metal and is easily scored/ damaged.
This is the old sump I removed against a good replacement one. My mate broke an M40 engine a while back and he kindly gave me this one as it was it great shape.
Then you'll need a new gasket:
I personally found it easier to put the new gasket on to the sump mating surface before I put it in place. Like this:
Make sure the gasket sits correctly and everything is nice and flush.
I took the time to clean up the old bolts too (my OCD kicked in) but that's just me.
Torque all 16 bolts back up (no idea what official NM or lbs/ft setting) but I torqued them up evenly until they just felt snug. They really don't need to be done up ridiculously tight and you'll just end up mashing the gasket up too much if you do.
It should now look like this:
And that's pretty much it! Easy peasy!! Don't forget to tighten up sump bolt and replace the oil.
I changed the oil filter at the same time as it made sense to do it all at once and put some nice fresh oil at the same time. The box that contains the new oil filter usually comes with all the seals needed for the oil filter housing and bolt (13mm socket), as well as the copper washer for the sump bolt.
