1974 20' SeaCraft CC w/ I/O in Saltwater Slip
 

We’re considering a restored 1974 20' SeaCraft CC w/ I/O but after searching the site for feedback on I/O in saltwater I've found most folks don't recommend it. We're also still in the process of determining what "restored" actually means but that is another matter.

Does anyone have personal experience with an I/O seacraft that is kept in a saltwater slip for 6-7 months a year? We have owned an I/O boat and do understand the maintenance requirements of the I/O system. We currently own a 1989 Tiara 3600 that has twin engine inboards so I’m very familiar with FWC engines and the maintenance associated with keeping them in saltwater.

What I don’t have experience with are I/O boats that are kept in saltwater and am looking for anyone that has personal experience they could share that would help us make an informed decision.

Thanks

Re: 1974 20' SeaCraft CC w/ I/O in Saltwater Slip
 

my boat's kept in saltwater from april to december-it's a stern drive set up.
unfortunatley,there's alot of bad information-"bad information" being incorrect...i've read all kinds of untruths-one gentleman stated,"bellows have to be repalced every year"...merc calls for bellows every 5 years-same time as manifolds and risers...no big deal...
i'v ehad no problems,nor have any of my customers...old saying,believe half of what you see and none of what you hear...
and for the record,i own and operate a marine repair biz...

Re: 1974 20' SeaCraft CC w/ I/O in Saltwater Slip
 

Thanks pelican
I always feel its best to ask people to share their personal experiences when trying to form an opinion about an issue or decision where I have no direct experience.

Thanks again for your input.

I hope to hear from others as well about their saltwater I/O experiences.

Re: 1974 20' SeaCraft CC w/ I/O in Saltwater Slip
 

I spent over 20 years in the marina business. Keeping an I/O in saltwater is only a problem if the maintenance isn't performed properly, particularly sacrificial zinc anodes and outdrive impellers, and fresh water flushing of the motor after use. Otherwise, no biggies.
Clean your manifolds and risers every 3 years, and then replace every 10 years, or just replace them every 5 years. The cost is about the same, but the first avoids the deterioration in cooling performance occurring from years 3 to 5.
Raw water cooling DOES have a deleterious effect on the block and heads of the motor, as well, but those are generally long-term issues (20+ years) if regular PM is performed.