Zetec engine identification

[frodo_monkey]

Hi all,

I've just bought a mk3 Fiesta fitted with a 2 litre Zetec, and I was wondering if someone could help me identify whether it is a silver top or black top engine, and which phase it might be? I've searched a lot and found some conflicting information. I know it is a 2.0 as '20' is stamped into the block, and the engine code starts with NGA (I can't read the rest of the numbers):






The engine number - which I can't make out!


The reason I'd like to know is that the water pump needs replacement and I was wondering if it will be possible without removing the timing belt? I haven't got around to taking the timing belt cover off yet as you can see from the pictures. From what I can see the water pump is driven off a triangular belt between the crank pulley, alternator and water pump itself if that helps; apparently on black top engines you don't need to remove the timing belt!

All help gratefully appreciated.

[frodo_monkey]

Thanks, that chimes with what I was thinking... Silvertop (with a black cam cover) it is, and I'll swap out the timing belt/tensioner as judging by the rest of the car it'll need doing

[frodo_monkey]

I'd already picked that up but thanks for the reminder