denhajm
Seaman
- Joined
- Nov 24, 2012
- Messages
- 56
Hello, I have a 4.3L Mercruiser on with an Alpha out drive on a '90 SeaRay BR200. I've had the boat for three boating seasons and am wondering how to tell when the exhaust manifolds and risers are due for replacement? I have had the boat in salt water a few times exploring some near San Juan Islands on calm water days. But it is usually in fresh water when in use, then parked at the house (salt water rinsed out with muffs at home). Still, it is an old boat and I have no idea when they were last replaced, nor how corroded they may be in side. That be said, I'm toying with upgrading to a slight newer, slight more sea-worthy boat for the San Juan islands, so I'm not wanting to needlessly spend money. I've been quoted over $2,000 for the job, but I can buy parts for around $600, so I'm considering doing it myself. I just need to know how to determine when they are bad. Thanks!