graysworld
Active Member
- Joined
- May 27, 2015
- Messages
- 98
I am sure this has been covered before and there are a lot of cures on the net. I thought I would just say what I have done to fix the problem with my automatic gearbox drain plug. Quite simply (if you have any tapping experience). I drilled it out to 10.5mm and tapped with a 12x1.75 tap, This is a standard 12mm bolt thread I.E. not metric fine. I cut off a bolt to suit as a new plug. It is useful as I did this in situ, to have someone else to confirm straight drilling and tapping. Also worth noting that you make sure you are perpendicular to the mating surface of the plug. Although the sump is aluminium there does appear to be a harder metal insert which makes it stronger. I had to use a spanner to turn the tap as there was not enough room to turn a tap wrench. I used a fibre washer as I did not have a copper one and also used some PTFE tape on the thread.
