460 engine sump drain plug
Just tried to change oil in my engine but large nut bigger than my 32 mm largest spanner and socket set jumps from 32 mm to 36 mm which is too big. Also has sensor fitted into nut with spade tag but no wires to it. I have temperature gauge in car so guess that is water temp. So what is this sensor for and where is it measured. Got to get manuals for this car as have nothing to reference to check things. Any advice would be great.
Hi perhaps a previous owner wanted to sense the oil temperature..should be juat a normal plug in the sump....water temperature is sensed at the cylinder head where the water is hottest....
it should be an Allen key 14 mm if I remember correctly
14 mm is what the factory fits, it is also the same as the Allen nut for the front swivels. That's not to say that a previous owner has not changed it to a conventional hexagon.
Paul
Hello sharpham,
ME Thinks, the wrong nut, you have...
Guessing, This could be for the low oil level sensor fittment as was fitted to a few vehicles as a optional extra if they wanted one.
Your Oil drain is definately a 14 mm allen key head. This should be located at the lowest point on the sump, towards the front. It might be on the base of the sump or by the side face of the sump, but in all cases at its lowest point on the sump to allow oil to fully drain out.
If not sure, post photos of the sump.
Cheers.
Hello sharpham,
Now looking at your photos, this sump nut has been modified, and yup, you will need your big spanner.
Ps. When you do take off this sump nut, take the thread and pitch dimensions and look for another nut to replace for the future. Do not like of the idea, should you go off roading that the sender unit spade connector gets damaged and leak oil.
Cheers,
vice grip....
Hi Fixwin38. Is the sump plug about 34 mm? I think this is the plug as the sensor hole is too high on the sump to be able to drain it fully.