Senior Member
Join Date: Nov 2005
Location: NW Ohio
Posts: 3,421
Bikes: 1984 Miyata 310, 1986 Schwinn Sierra, 2011 Jamis Quest, 1980 Peugeot TH8 Tandem, 1992 Performance Parabola, 1987 Ross Mt. Hood, 1988 Schwinn LeTour, 1988 Trek 400T, 1981 Fuji S12-S LTD, 197? FW Evans
Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 532 Post(s)
Some have had luck using ammonia as a penetrant to loosen the steel to aluminum bond. It takes some time, and it gives off some nasty vapors, so it is best done outside the house. If you can get the crank removed, then you can pour some ammonia inside the seat tube and let it soak. For the stem, you can just invert the frame and pour it into the bottom of the fork.