Duratec Sump/Crankcase Oil Leak Query

[finmac]

I have a smallish oil leak which Is from the bottom of the crankcase. I intend to clean it up and try a wee touch of sika flex on to see if it will hold it back. However I notice there’s one set screw down low just off the centre at the front of the engine  (rather than a bolt). It’s in this area it’s leaking, however adjacent is a small black wedge type semi circle of metal, which rests within the casting, not sure what this is for and whether it can be temporary popped out prior to sealing?

[7 wonders of the world]

Are you running the Raceline DS..?

If so the semi circle you can see is the blanking for the casting hole its a press fit alloy plug with tapped M6 for extraction purposes.

You can see the hole in the right hand picture

https://www.raceline.co.uk/products/part_section.asp?categoryID=1%20&SectionID=23

 

[finmac]

Cheers!

It’s a CSR so standard cossie 2.3D. That hole looks like exactly in the right place though, so thanks for that! I suspect it’s also maybe the source of the oil leak! Sounds like the plug screws in but likely needs the crankcase cover to be off to enable it to turn? 

[David Brown]

Did you try dropping the sump and re-sealing it?

[7 wonders of the world]

The Raceline one is just a light interference fit with a smear or sealant around it, tap it in with a mallet until flush with the front edge.

[finmac]

Turns out when I cleaned it all up properly it wasn’t the sump at all - thankfully! 

Rather it looks like it might well be this plug. Will have a better look tomorrow 

[finmac]

Thanks