Why does everyone moan about Volvo Pentas overheating….

There are a lot of posts about Volvo Penta raw water pumps failing, causing engines to overheat, in forums. Seems to me far more than any other engine. I have a Volvo Penta D2-40, now about 9 years old, in perfect condition. Serviced regularly an inspected frequently. By myself, its my boat and if its not done right I suffer the consequences. Service mechanics don’t as I found out on the first…