When I removed the spinnaker car T-track I had much the same problem. I started with a test to see if any of the fasteners ( 5/16 SS ) would come out by hand with a screwdriver, no such luck. The next step was getting a bit of penetrating oil to seep in, repeated applications over a few weeks. I noticed that the slot size and the screwdriver blade was not a good match, ended up visiting a few hardware stores until I could get a blade that needed a light tap to firmly fit into the screw. With two people, one person holding the screwdriver in and the second using a wrench to turn it, we tested the screws again. Nothing would budge.
I used a high heat gun to warm up the screw and area, then a can of cold blast to chill just the screw to create some thermal shock and get some penetrating oil in. No success either. So I used a hand impact driver and three pound hammer to remove the 27 screws. Most were so tight that even when 5 - 6 full turns out they would not move with a screwdriver. I did also notice that none of the penetrating oil ever did get to were it would help. Ended up clamping a visegrip around the screws once they were far enough out and rotating that with two hands. Amazingly none broke. You mention adding a T-track for a whisker pole. At least on the 30-1 there is not much adjustment required in board for a whisker pole, normally goes out above the lifelines and level with the clew. You may get away with a simple ring. Using a spinnaker and pole does require adjustment. I found that T-track to be pretty stiff once the pole had loaded up so I switched it to a captive ball track. Mike Brown Windburn C&C 30-1 Message: 1 Date: Sat, 03 Aug 2013 19:59:14 -0400 From: John Russo <johnrussob...@optonline.net> To: cnc-list@cnc-list.com Subject: Re: Stus-List Using a hammer drill to remove corroded fastener Message-ID: <001b01ce90a5$75050570$5f0f1050$@optonline.net> Content-Type: text/plain; charset="us-ascii" Pete, Stainless screw corrosion to aluminum mast is probably the culprit. Heat the screw with Napa torch until it is ret hot which breaks the corrosion then let it cool a bit and then hit with a impact wrench and proper bit. Generally will do it. John Arpeggio C&C 32 From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of kelly petew Sent: Saturday, August 03, 2013 10:14 AM To: cnc-list Subject: Stus-List Using a hammer drill to remove corroded fastener I want to add a "T" track slide to my mast for a whisker pole. The mast tracking is in place, but I can't break the bottom fastener, in order to install the T-Track. Likely, corrosion b/t the fastener and mast is the issue. Has anyone had any experience - good or bad - using a hammer drill to break the corrosion bond?? thanks. Pete W. C&C30 MKII
_______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
