Threaded plug in engine block

[KWM338R]

I'm stripping my block down for a thorough clean and repaint and have unearthed a threaded plug I've never seen before as it was covered in gunk.




Is this just simply threaded into the block or If I try to remove it am I going to open a can of worms? I had a major big end bearing failure so need to get at all the oil passageways to make sure all debris is gone.

Regards,
Mark

[trackerjack]

Suggest you leave it well alone as I believe this is the plugged hole for the oilway that is fed by the jackshaft and transfers oil to the head.

[soe8m]

Yes you can unscrew these. Theres also one around the dizzy. When unscrewing these you can clean all oilway's in the engine and a lot of residu is alway's present in that particular bore. I use a hex plug to close these again.

Jeroen

[KWM338R]

thanks Gents.

I'll have to look more closely round the dizzy, I hadn't noticed that one.

Cheers
Mark

[Mad Mart]

I've always left them alone.

[KWM338R]

I don't want to take any chances after finding a big end bearing looking like this.