Sodo
Elite Member
- Joined
- Apr 21, 2012
- Messages
- 3,219
- Location
- Cascade Mtns of WA state
- Tractor
- Kubota B-series & Mini Excavator
Trying to reassemble a 'repaired' leaking cylinder. Proper repair of the cylinder (ram rechrome + $100 seal kit from mfr, +labor) was estimated to be $1,000+, and a new cylinder assy is $974. I was inclined to try to fix it, as the pitted part of the cylinder can be avoided most of the time if I'm careful using it. The bore is 2 1/2".
I removed the rod, put it on a "roller bearing contraption", and polished it with an air grinder and polishing pads from Harbor Freight. The HF grinder finished the job. The pits are still there, but much 'softer', it's a vast improvement over the 1st pic below.
I bought new packing $13.49, and now with $35 of HF tools I'm into it for $50 plus my time. Putting it back together now and I'm wondering if I need a special tool to insert the ram packing? The cylinder is nicely chamfered, but the packing seal is pretty stiff, the same size as the chamfer, and won't go in. Is there a "technique"? Or do I need a special tool?![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Thx for tips!!
![crown_pitted.JPG crown_pitted.JPG](https://www.tractorbynet.com/forums/data/attachments/270/270716-53ac03275e58845f0b3a9cf0bb1a6c0f.jpg)
![crown_chamfer.JPG crown_chamfer.JPG](https://www.tractorbynet.com/forums/data/attachments/270/270713-5cc706badc7f155767f108e70cd6387a.jpg)
![crown_ram_packing.JPG crown_ram_packing.JPG](https://www.tractorbynet.com/forums/data/attachments/270/270719-b0f694ecded7ebe14542fa9aeaa89172.jpg)
I removed the rod, put it on a "roller bearing contraption", and polished it with an air grinder and polishing pads from Harbor Freight. The HF grinder finished the job. The pits are still there, but much 'softer', it's a vast improvement over the 1st pic below.
I bought new packing $13.49, and now with $35 of HF tools I'm into it for $50 plus my time. Putting it back together now and I'm wondering if I need a special tool to insert the ram packing? The cylinder is nicely chamfered, but the packing seal is pretty stiff, the same size as the chamfer, and won't go in. Is there a "technique"? Or do I need a special tool?
![crown_pitted.JPG crown_pitted.JPG](https://www.tractorbynet.com/forums/data/attachments/270/270716-53ac03275e58845f0b3a9cf0bb1a6c0f.jpg)
![crown_chamfer.JPG crown_chamfer.JPG](https://www.tractorbynet.com/forums/data/attachments/270/270713-5cc706badc7f155767f108e70cd6387a.jpg)
![crown_ram_packing.JPG crown_ram_packing.JPG](https://www.tractorbynet.com/forums/data/attachments/270/270719-b0f694ecded7ebe14542fa9aeaa89172.jpg)
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