Hi!
Just below the alloy alt/genny stand, where the firing order is marked, on the engine block itself is a number, for example, AB, AE etc. You can then go onto here and it will tell you what it is:
http://www.type2.com/bartnik/enginecodes.htm" onclick="window.open(this.href);return false;
http://www.partsemporium.co.uk/EngineCodes.htm" onclick="window.open(this.href);return false;
If it's a bug engine, it may have the wrong tinware over the back of the engine (like mine :roll: )
Hope this helps.
Alistair