I have the boat in the water for the summer. Wondering about corrosion to rudder fitting, anything associated with the Keel or centerboard, and anything else that does not occur to me. It's in salt water, I do keep the OB tilted out of the water.What do you recommend? Any specific products or methods?Thanks,Tyler H.SeranitaM17 #232
For the hull and centerboard a sealing coat under the antifoul. The rudder needs to be out the water if the mahogany variety ... Unless coated with fiberglass and epoxy under the antifoul. The kickup ruddercraft types need to be out of the water (ie, kicked up). The lower gudgeon is a problem as stainless should not be under water full time (depends.on how your boat is configured if lower gudgeon will be in the water). Besides the above not much else you can do but prayer. ;-) My M17 spent over 20 years on a mooring on Puget Sound with no problems. (The cast iron centerboard was serviced at 20 years.) :: Dave Scobie On Jul 13, 2017 5:28 PM, "Tyler Heerwagen via montgomery_boats" < montgomery_boats@mailman.xmission.com> wrote:
I have the boat in the water for the summer. Wondering about corrosion to rudder fitting, anything associated with the Keel or centerboard, and anything else that does not occur to me. It's in salt water, I do keep the OB tilted out of the water.What do you recommend? Any specific products or methods?Thanks,Tyler H.SeranitaM17 #232
Thanks David, I have antifouling paint so that is good. I do have a kick up rudder, and I have noted some minor surface discoloration on the SST that is submerged. I found a rudder sacrificial anode on Defender marine, was going to try to mount that somehow. Will also try prayer. http://www.defender.com/product.jsp?path=-1|299255|319698&id=3320019 Tyler From: Dave Scobie <scoobscobie@gmail.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com>; Tyler Heerwagen <theerwagen@yahoo.com> Sent: Thursday, July 13, 2017 4:47 PM Subject: Re: M_Boats: Zincs needed for my M17?? For the hull and centerboard a sealing coat under the antifoul. The rudder needs to be out the water if the mahogany variety ... Unless coated with fiberglass and epoxy under the antifoul. The kickup ruddercraft types need to be out of the water (ie, kicked up). The lower gudgeon is a problem as stainless should not be under water full time (depends.on how your boat is configured if lower gudgeon will be in the water). Besides the above not much else you can do but prayer. ;-) My M17 spent over 20 years on a mooring on Puget Sound with no problems. (The cast iron centerboard was serviced at 20 years.) :: Dave Scobie On Jul 13, 2017 5:28 PM, "Tyler Heerwagen via montgomery_boats" <montgomery_boats@mailman.xmission.com> wrote: I have the boat in the water for the summer. Wondering about corrosion to rudder fitting, anything associated with the Keel or centerboard, and anything else that does not occur to me. It's in salt water, I do keep the OB tilted out of the water.What do you recommend? Any specific products or methods?Thanks,Tyler H.SeranitaM17 #232
Hi Tyler, I'm new to the group, and only have a little M12. But, I have a bunch of friends who work in boatbuilding and we've a lot of boats in salt here in Downeast Maine. Dave Scobie is right on about stainless underwater in saltwater. Keel bolts exposed to saltwater with no chance of getting air are going to be failing in time. Now, if wind and waves expose that stainless to air at times, it may be okay and only discolor. We've moored our (now sold) 19' Mariner in saltwater and had zero problems with the lower pintle or gudgeon at all. I did make the mistake of leaving the outboard down for too long and it was plastered with barnacles, but that's another story. Electrical current in the boat or in the water are the big issue that could create problems, from what I have read. I have seen a number of outdrives on power boats corrode quickly at dockage on Lake Winniepisaukee (sp?) where there is electrical dockside hook ups, and that is freshwater. If you are in an area with dockside power, there will likely be some electrical current in the water-- the greater concern might be your iron keel, from what I understand. Burt On Thu, Jul 13, 2017 at 7:28 PM, Tyler Heerwagen via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
I have the boat in the water for the summer. Wondering about corrosion to rudder fitting, anything associated with the Keel or centerboard, and anything else that does not occur to me. It's in salt water, I do keep the OB tilted out of the water.What do you recommend? Any specific products or methods?Thanks,Tyler H.SeranitaM17 #232
One more thing to keep in mind - for those in estuaries, which might be called bays, but are any place where fresh and salt water mix regularly... The fresh/salt mix combo is even more corrosive on average than straight-up seawater. Especially when it's constant - e.g. frequent or constant incoming fresh in an ocean-connected bay, basin, inlet, whatever. There's nothing different to do as preventative measures - just more of the same and keep a closer eye on anything mission-critical (e.g. mooring parts & pieces, underwater metal on the boat, etc.). cheers, John S. On 07/14/2017 01:29 PM, Burton Lowry wrote:
Hi Tyler,
I'm new to the group, and only have a little M12. But, I have a bunch of friends who work in boatbuilding and we've a lot of boats in salt here in Downeast Maine.
Dave Scobie is right on about stainless underwater in saltwater. Keel bolts exposed to saltwater with no chance of getting air are going to be failing in time. Now, if wind and waves expose that stainless to air at times, it may be okay and only discolor. We've moored our (now sold) 19' Mariner in saltwater and had zero problems with the lower pintle or gudgeon at all. I did make the mistake of leaving the outboard down for too long and it was plastered with barnacles, but that's another story.
Electrical current in the boat or in the water are the big issue that could create problems, from what I have read. I have seen a number of outdrives on power boats corrode quickly at dockage on Lake Winniepisaukee (sp?) where there is electrical dockside hook ups, and that is freshwater. If you are in an area with dockside power, there will likely be some electrical current in the water-- the greater concern might be your iron keel, from what I understand.
Burt
On Thu, Jul 13, 2017 at 7:28 PM, Tyler Heerwagen via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
I have the boat in the water for the summer. Wondering about corrosion to rudder fitting, anything associated with the Keel or centerboard, and anything else that does not occur to me. It's in salt water, I do keep the OB tilted out of the water.What do you recommend? Any specific products or methods?Thanks,Tyler H.SeranitaM17 #232
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participants (4)
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Burton Lowry -
Dave Scobie -
John Schinnerer -
Tyler Heerwagen