I can confirm that the chaffing is definitely worst at the top and bottom of the tube.
On Tue, Jan 21, 2020 at 9:03 AM Warren Stein via Groups.Io <wrsteinesq=
[email protected]> wrote:
Anything to reduce friction is good; but the real abrasion issue as I understand it isn't the pennant in whatever tube it's in.? Instead, it's where the pennant exits the tube at the bottom, inside the centerboard trunk.?? As the CB is raised and lowered, the angle of the lead changes, causing the pennant to chafe on the lower edge of the tube.? I think that's where the wear is happening.?? So if I'm right, the important thing would be to contour that lower exit point so it's rounded and doesn't have any sharp edges.?? There may also be some wear at the upper edge, as the angle changes; but primarily at the lower end...? I think.??
Warren Stein
-----Original Message-----
From: Bill talbot via Groups.Io <talbot.bill=
[email protected]>
To: T27Owners <
[email protected]>
Sent: Tue, Jan 21, 2020 9:28 am
Subject: Re: [T27Owners] Centerboard pennant fairlead tube repair
Does someone know the dimensions of the inside of the tube. I am looking at a product called alumina. It is highly abrasion resistant . It actually comes in tube form . Was thinkig of sliding one tube form inside brass tube and using dynema . Surface of alumina would act like a slick surface for pennant to ride against it . Rubber sleeve would go right over brass tube as normal
> On Jan 21, 2020, at 8:44 AM, Carl Damm <
cfdamm@...> wrote:
>
> ?The original hose was heater hose.? Marine exhaust is an excellent choice.? Also consider silicone exhaust and corrugated exhaust hose.? All have their good points.? I always use exhaust hose for any critical below water connections.
> --
> Carl Damm
> DAMSELv
> 1976 #593
> Stuart Fl
