Re: i386 Boat Restoration. (Crosby Sled)
...continued
Inside view of flared tube.
Outside view of flared tube.
This process did not go very well on the first try...
I used my tubing cutter to cut the tubing 3/16 longer than the hole. There was some play in the cutting wheel so it took a few tries to get lined up on my mark. If you have a good tubing cutter, you should be good. I bet a band saw would do even better. After coating the tube in 5200 and putting a little oil on the flaring tool I started to tighten the nut to flare the tube. By the time the tube was sufficiently flared, it was split in about 6 places.
The tube was quickly removed with a "throw away" flathead screwdriver and hammer, then the 5200 was cleaned off of everything in preparation for the redo.
Round 2.
I'm glad I ordered 2 of those. This time a few extra steps were taken and it worked. I don't know which, if any contributed to the success, but I will do it this way from now on.
1. Cut the tube 1/8" longer than the hole is.
2. Anneal the tube by heating it with a propane torch until it's red hot, then allow it to cool slowly in the air. (Do not quench it in water)
3. Sand the cut end of the tube to remove any "micro-splits" that may develop into big ones.
4. Slather the tube in 5200. Having plenty of excess 5200 squeeze out during flaring is highly desirable.
5. Put a little oil on the part of the flaring tool that touches the drain tube and a little on the bolt threads.
6. Tighten and flare slowly. You can back off and check it as many times as you need to before tightening more.
7. Wipe off the excess 5200. I cleaned up the outside, my tools, and myself with a little Goof Off.
Fun with flaring tools...
I am not sure how to do this without getting in trouble, but it sure would be fun to lend this tool out to fellow boat fixer uppers and let them sign their handle on the little box. Well, at least until someone decides to keep it. Lat time I checked iBoats doesn't sell this tool.