Well, not a rebuild exactly, but a complete powerhead replacement. This is a 91 with almost 1200 hours on it. The cylinders have been bored at least once already (only on one bank for whatever reason) and now the sleeve is too thin to bore them any further. I haven't looked at it myself, but the tech says the peak compression was good but the bored-out side failed the leak-down test. One of the pistons on that side is impacting the cylinder head, and is visibly loose in the cylinder. Also, they seem to think it sucked a reed into one of the cylinders at one point. They're quoting me $5000 for a new powerhead. I don't know if that's reasonable or not, or if it even makes sense. I think I could make 5 grand go a lot further with a good used replacement engine. Also, it hasn't "blown-up" yet, and it runs OK most of the time. I only brought it in for service because of the intermittent power loss I was experiencing. So, do I have any other reasonable alternatives, or should I bite the bullet?
