it did have a rubber seal on it, and the washer i ordered was metal (intended for mx-5), okay i guess it was some garage’s work to use the Mazda 2’s sump plug 
. I also have the new sump plug on to which the 17mm socket fits perfectly.
Use a Metal Work Chisel to rotate the screw. Looking at the Pic, to the left.
Looks like two of the flats are vertical. I’d just take my time with a square edged file on the flats until there’s a tight fit with an open spanner.
Then a bit of heat for good measure and it should simply undo.
Hi buddy, newby to here but I’ve been an engineer for 45 years, bolt extracters are very good but , I’ve found that some heat and a tap with a hammer works 90% of the time,
Just make sure there is nothing to catch fire and you have an extinguisher at the ready
Clean off any oil that’s hanging around
An alternative is to use the good fitting socket and an extension (to bring the attachment point for the socket handle down below the floor of the car), then attach it to a long breaker bar with padding/a box or something under it that keeps the socket in place.
Basically you end up with an: U
======================||
________________________________Box
This then gives you more leverage and if the breaker bar is long enough (or extended with a pipe) then it now sits beyond the width of the car so you can put more strength into turning it, even from a standing position.
Have found that the best type of Mole Wrench type grips for such problem is the Parrot Nose type. They are specifically designed to grip nuts.
2 Likes
Hi everyone,
Thanks a lot for the suggestions, quick update i did take the car to a garage (this was a specialist as he was not too far away for me) once the car was on the ramp with a bit of force and the bolt extractor socket he was able to get it out. Car being on the ramp does provide plenty of space to give it all. Now the car is fitted with the right sump plug as well. Bit of an awkward experience this time as this should be been a quick job for me to DIY
5 Likes