[C320-list] Mast thickness

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Tefgel to prevent SS-aluminum corrosion. Lifetime supply on Amazon for $36:
























-----Original Message-----
From: Greg Flanagan via C320-list <c320-list at lists.catalina320.com>
To: C320-List at catalina320.com
Cc: Greg Flanagan <greg.flanagan at shaw.ca>
Sent: Sat, May 13, 2023 7:26 pm
Subject: Re: [C320-list] Mast thickness

Yes, thank you.

PS the machine bolts I used on the plate were machine head (round) not knurled, so they need a screw driver. We use Roberts heads here in Canada as they don’t strip out like slot or Phillips. However, a hex head would also be good. I don’t take the plate off. I just loosen it and it gives an opening where the glides can slip in.

Greg
Hoop Dancer #1076
Sidney, BC

> On May 13, 2023, at 4:10 PM, Dave Hupe via C320-list <c320-list at lists.catalina320.com> wrote:
> 
> Greg-
> Probably Lanocote grease for use between different metals?
> Dave Hupe 1994 C320 #32
> 
> Sent from Yahoo Mail on Android 
> 
> On Sat, May 13, 2023 at 6:56 PM, Greg Flanagan via C320-list<c320-list at lists.catalina320.com> wrote: I had the same problem. I got a drill bit and tap the next size up. Redrill the hole which will not generate much metal as the next size is about the size of the old tap. The thickness is  only about 3/8” so one needs to tap carefully maintaining a strict perpendicular approach. Aluminum is easy to tap but still use oil while doing this. I went with a fine thread. The cause of the initial problem is a SS machine bolt going into aluminum. The dissimilar metals rots the metal. A friend gave a grease like material (help needed on what this is) to coat the new bolts with before I reassembled the plate. It is now over 10 years and all is well (even better).
> 
> 
> Greg
> Hoop Dancer #1076
> Sidney, BC
> 
>