How can i tell the difference between an 8v and a 16v 1996 p reg 1.6 ls astra?

i have to change the water pump on my 1996 1.6ls astra and i dont know how to work out if its an 8v or 16vHow can i tell the difference between an 8v and a 16v 1996 p reg 1.6 ls astra?If you don't know how to tell the difference, you shouldn't even be trying to change the water pump as it is driven by the cambelt. Get this job wrong and your car is fit only for a garden ornament. 8V has the spark plug leads at the front of the engine, and the top is thin and silver. The 16V has a squarish black plastic cover running side to side and the spark plugs are under this. To reiterate. If you don't know this, take it to a local mechanic, or if you are in South Yorkshire, I could do it for you.....How can i tell the difference between an 8v and a 16v 1996 p reg 1.6 ls astra?The most definitive way would be to remove the valve cover. It's a four cylinder car and should take about five minutes to remove. Then you can just count the rocker arms or cam lobes on the camshaft.How can i tell the difference between an 8v and a 16v 1996 p reg 1.6 ls astra?It should be on your paper work, or look at the metal plate under the bonnet.How can i tell the difference between an 8v and a 16v 1996 p reg 1.6 ls astra?one camshaft pulley =8v two pulleys =16v i would think its 8v