Yanmar YSB8 Anode

[Spyro]

This may or may not be a silly question because I'm fairly new to this. Does anyone know if said engine has a sacrificial anode? Handbook refers to a zinc plate on top of the engine but I can't tell from the diagram where it is on the engine and I have had a look at the engine and can't see anything that looks like its doing any sacrificing apart from a couple of very rusty jubilee clips which I have replaced.
Any help?
Thanks Ian .

 

[l'escargot]

On top of the block between the lifting ring and the thermostat housing should be a largish bolthead (about 25-30mm by memory). Undo this and there should be an anode on the end of it.

 

[salamicollie]

Note that it is a square bolt head (originally had a label on it) - It is possible that is not next to the lifting and may be on font or back of the cylinder block as there were several variants of the engine

 

[l'escargot]

Looks like there are variants in shape as well - mine isn't square.

 

[Spyro]

Thanks for all advice
I have found the anode It was right next to the lifting eye, I didn't realise it would be screwed in under the large square nut
Ian