+1 to Norm Yanni @ Pisces Marine 669 Third Line, Oakville, ON. L6L 4A9 www.piscesmarine.ca serv...@piscesmarine.ca 905-827-2317 Please don't print this e-mail unless you really need to
-------------------------------------------------- From: <banders...@earthlink.net> Sent: Tuesday, July 06, 2010 3:58 PM To: <liveaboard@liveaboardonline.com> Subject: Re: [Liveaboard] Off topic mechanical issue > > Lee, > > I don't think any chemicals will help. They cannot get inside, and they > cannot reduce the bulk of the rust. > > I would use heat and force. > > I would set up to use hydraulic jack(s) to separate the pieces, welding or > clamping tabs on the steel for the jacks to push against if useful. Then > heat the outside part with several blow torches (I use a oxy/acetyline > rosebud) whilst cooling the inside part with dry (or wet) ice or even just > water, and when everything is smoking and steaming apply as much force as > you can. > > Whack on the pipe to loosen it as you heat, cool, and jack it but take > care > not to whack on the part where they are together for fear of locking them. > > If you can't separate them consider cutting out the stuck part and make a > new joint to weld on. > > Alternately, you might cut two or three slits longitudinally along the > outside pipe at the joint to let it spread, then clamp or weld them back > up > after you separate the pipes. > > Cut a 1/8" or 1/4" pipe coupling in half and weld them on the joint (drill > through after welding) to add grease fittings when you get it apart or > make > a new one to prevent this from happening again. > > > Norm > S/V Bandersnatch > Lying Gloucester MA > > >> [Original Message] >> From: Lee Haefele <l...@htva.net> >> To: <liveaboard@liveaboardonline.com> >> Date: 7/6/2010 11:58:47 AM >> Subject: [Liveaboard] Off topic mechanical issue >> >> I have 2 concentric steel pipes, ~6" diameter, held together with set >> screws. The 2 pipes are within each other, rusted tight. This is the >> adjustable height tube for an aerial lift on a 1 ton truck. It needs to > be >> separated to mount unit to a van. Have tried PB blaster for 2 weeks, > tried >> a 12 ton jack and a huge blowtorch. No movement. We are trying Coke A > Cola >> next. What could shrink the rust material? With more disassembly we > could >> apply more heat. (Need to remove wires and hoses.) >> Lee Haefele > > > > _______________________________________________ > Liveaboard mailing list > Liveaboard@liveaboardonline.com > To adjust your membership settings over the web > http://liveaboardonline.com/mailman/listinfo/liveaboard > To subscribe send an email to liveaboard-j...@liveaboardonline.com > > To unsubscribe send an email to liveaboard-le...@liveaboardonline.com > The archives are at http://www.liveaboardonline.com/pipermail/liveaboard/ > > To search the archives > http://www.mail-archive.com/liveabo...@liveaboardnow.org > > The Mailman Users Guide can be found here > http://www.gnu.org/software/mailman/mailman-member/index.html > _______________________________________________ Liveaboard mailing list Liveaboard@liveaboardonline.com To adjust your membership settings over the web http://liveaboardonline.com/mailman/listinfo/liveaboard To subscribe send an email to liveaboard-j...@liveaboardonline.com To unsubscribe send an email to liveaboard-le...@liveaboardonline.com The archives are at http://www.liveaboardonline.com/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/liveabo...@liveaboardnow.org The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
