[MBZ] 560 SEL -- now hyd cylinder
I didn't trigger on this till just now. I repaired an old Sears floor jack a couple of years ago. It was very easy. The only problem was finding the rubber parts for it. Look for a place that repairs the big hydraulic jacks in repair shops. I found one in Jacksonville. Take the parts to them and they hand you the right new ones. I can't really remember now but I seem to recall that there was a big rubber thing on the bottom of the ram and a seal type where it ran in and out. May have also been a smaller seal at the valve. The rest was little springs and balls in the valve system. A pain to refill with oil but it has worked like new since then. I also seem the remember doing a bench top press with hose connected remote hand pump at one time in the past. Just a quick and dirty job at the time. Replaced the seals at the top of the ram and left the rest. It still works when I need it. Manfred Date: Thu, 23 Dec 2010 01:36:44 -0800 From: Jim Cathey j...@windwireless.net To: Mercedes Discussion List mercedes@okiebenz.com Subject: Re: [MBZ] 560 SEL -- now hyd cylinder I have a really old hydraulic floor jack with a leaky cylinder, have thought for some time to try to rehabilitate it. Are those similarly arranged? I think they can be repaired, but I've never done one. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 560 SEL -- now hyd cylinder
I have a really old hydraulic floor jack with a leaky cylinder, have thought for some time to try to rehabilitate it. Are those similarly arranged? I think they can be repaired, but I've never done one. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 560 SEL -- now hyd cylinder
Rebuild depends on design and availability of parts. If the seals are all orings, you are in luck as long as metal parts are not worn badly. I think some jack pumps use a cup in the pump, and it may be hard to find replacement cups. I have worked on hyd cylinders that are in the range of 100 years old, but still perform regular duty made with leather cups. The leather cups are available. The cylinders run and work ok at 2000 psi. One I saw being operated at 2750 psi on an 8 cylinder. that is 16 pi x 2750 or 70 tons on a piece of leather. I have a really old hydraulic floor jack with a leaky cylinder, have thought for some time to try to rehabilitate it. Are those similarly arranged? I think they can be repaired, but I've never done one. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 560 SEL -- now hyd cylinder
On Thu, 23 Dec 2010 07:41:43 -0600 Dieselhead 126die...@gmail.com wrote: I have worked on hyd cylinders that are in the range of 100 years old, but still perform regular duty made with leather cups. The leather cups are available. The cylinders run and work ok at 2000 psi. One I saw being operated at 2750 psi on an 8 cylinder. that is 16 pi x 2750 or 70 tons on a piece of leather. But the leather is most surely in compression between the hydraulic fluid and steel cylinder walls and a steel piston attached to the cylinder's rod, with only a small part exposed to the gap it's sealing. Craig ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 560 SEL -- now hyd cylinder
Yes, that is why leather can work in such a situation On Thu, 23 Dec 2010 07:41:43 -0600 Dieselhead 126die...@gmail.com wrote: I have worked on hyd cylinders that are in the range of 100 years old, but still perform regular duty made with leather cups. The leather cups are available. The cylinders run and work ok at 2000 psi. One I saw being operated at 2750 psi on an 8 cylinder. that is 16 pi x 2750 or 70 tons on a piece of leather. But the leather is most surely in compression between the hydraulic fluid and steel cylinder walls and a steel piston attached to the cylinder's rod, with only a small part exposed to the gap it's sealing. Craig ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 560 SEL -- now hyd cylinder
I have a really old hydraulic floor jack with a leaky cylinder, have thought for some time to try to rehabilitate it. Are those similarly arranged? Parts available? Or should I take it off and take it to a shop and have them deal with it? --R On 12/22/2010 9:37 AM, Jim Cathey wrote: The 87 TD struts are different and I have been told by several different authoritative sources that they are not rebuildable. Did you see: http://bmwe32.masscom.net/gavin/LAD_strut_rebuild.htm Does that crimped-on cap look anything like your strut? Mine doesn't have that. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 560 SEL -- now hyd cylinder
Have one of those dead floor jacks also, I have to say that I've lost confidence in the thing at this point and I'm not sure I'd want myself or anyone else to use it. -Max From: Rich Thomas richthomas79td...@constructivity.net To: Mercedes Discussion List mercedes@okiebenz.com Sent: Wed, December 22, 2010 10:05:47 AM Subject: Re: [MBZ] 560 SEL -- now hyd cylinder I have a really old hydraulic floor jack with a leaky cylinder, have thought for some time to try to rehabilitate it. Are those similarly arranged? Parts available? Or should I take it off and take it to a shop and have them deal with it? --R On 12/22/2010 9:37 AM, Jim Cathey wrote: The 87 TD struts are different and I have been told by several different authoritative sources that they are not rebuildable. Did you see: http://bmwe32.masscom.net/gavin/LAD_strut_rebuild.htm Does that crimped-on cap look anything like your strut? Mine doesn't have that. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 560 SEL -- now hyd cylinder
Rich Thomas wrote: I have a really old hydraulic floor jack with a leaky cylinder, have thought for some time to try to rehabilitate it. Are those similarly arranged? Parts available? Or should I take it off and take it to a shop and have them deal with it? Hydraulic cylinders are usually held together with a screw on cap. Always fun finding a way to apply huge torque to the cylinder body (and the cap, if the cap isn't a hex head). I took my grandfather's (1975-1980 vintage) small floor jack to a shop about 20 years ago, and they told me it wasn't fixable. I never threw it away, intend to tear it apart some day but never have. Mitch. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
