Help needed with identifying and rectifying the problem

[trigger85]

Hi to all, i need help on either replacing the black circle cap/seal in the middle of the crankshaft casing in the picture or another way of securing it back on any help with this matter will be greatly appreciated.

Ive tried finding the part on line with no success.

Trigger

[drewpy]

maybe put a ring around the seal and use rtv and tap into the case using 4mm set screws!

[trigger85]

cheers drewpy. ill prob use that as a last resort if i cant get anywhere else with it.

[DirtyDT]

Number 17 here? LINKY

[trigger85]

DirtyDT thats certainly givin me some hope now. i know i said in the other section id seen that diagram but obviously i wasnt lookin properly so cheers m8