Slotted Sump Plug?

[jamesc76]

Ah, but this pumping method give you any visual meNs of seeing what metallic debris there is on your sump plug?

Most sump plugs aren't magnetic so nowt to see on it

[tobydog]

Most of the flat copper washers really need annealing before use anyway - the act of stamping them out must harden them in the cut areas. A quick heating to cherry red is all that is needed. I am surprised that no one on here advocates annealing the washers - the old one can be re-used once annealed. Today's throwaway society or ignorance of how they work? (It makes me wonder as to what is taught in schools today)

Agree, I used to anneal two stroke copper head gaskets on the gas cooker. Learnt it in metalwork at school (annealing copper).

Project management for the far east is probably taught in schools now days.

[what2do]

Ah, but this pumping method give you any visual meNs of seeing what metallic debris there is on your sump plug?

Most sump plugs aren't magnetic so nowt to see on it

REALLY, I can't remember not having magnetic ones in recent years. When changing the oil at least 3 times a year, it's comforting to know that the 'Christmas tree' is no worse than than the last oil change (fingers crossed that this doesn't change for the worse).