The iboats forum moderators are excited to announce that at this time it appears the iboats forums posting pictures function is working once again. Though we cannot promise for how long, we're hoping for indefinitely.
There would have been a Chapparal manual with the boat when it was new, but it just covers the basics and extra features of the boat. If you are concerned about a leak involving your engine, the engine manual is the way to go. As was pointed out above, it's _probably_ a Mercruiser, but you'll need to check. There should be labeling on the top side of the engine (hopefully!)