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#1
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Hydraulic steering: lines with severe soft spots
Hi NG,
A few years ago I topped up up the reservoir of my steering system with BP 22 High Performance hydraulic oil. Everything works ok but now I discovered a few stretched spots right after the hydraulic pump. Could it be this BP oil affects the plastic lines? Any ideas about cause and/or solution? TIA, Len. |
#2
posted to rec.boats.cruising
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Hydraulic steering: lines with severe soft spots
On 2008-01-05 16:23:00 -0500, Len said:
A few years ago I topped up up the reservoir of my steering system with BP 22 High Performance hydraulic oil. Everything works ok but now I discovered a few stretched spots right after the hydraulic pump. Could it be this BP oil affects the plastic lines? Any ideas about cause and/or solution? I'd say replace with a hose that you know will handle it. Whatever the old line's construction, it's time to replace, whether it was caused by the oil or not. "Stretched" sounds like you might want to make the new line a bit longer so it doesn't have that stress. -- Jere Lull Tanzer 28 #4 out of Tolchester, MD Xan's pages: http://web.mac.com/jerelull/iWeb/Xan/ Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/ |
#3
posted to rec.boats.cruising
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Hydraulic steering: lines with severe soft spots
On 6 jan, 02:38, Jere Lull wrote:
I'd say replace with a hose that you know will handle it. Whatever the old line's construction, it's time to replace, whether it was caused by the oil or not. "Stretched" sounds like you might want to make the new line a bit longer so it doesn't have that stress. With stretched I meant the forming of a spot with a much larger diameter, like an aneurysma. The lines have a reinforcement inbetween two layers and the outer layer has come loose. I'm even thinking about copper lines now. Thanks for your reaction. Len. |
#4
posted to rec.boats.cruising
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Hydraulic steering: lines with severe soft spots
Len wrote:
On 6 jan, 02:38, Jere Lull wrote: I'd say replace with a hose that you know will handle it. Whatever the old line's construction, it's time to replace, whether it was caused by the oil or not. "Stretched" sounds like you might want to make the new line a bit longer so it doesn't have that stress. With stretched I meant the forming of a spot with a much larger diameter, like an aneurysma. The lines have a reinforcement inbetween two layers and the outer layer has come loose. I'm even thinking about copper lines now. Thanks for your reaction. Len. The metal re-inforced lines used on building plant, bulldozers etc., are best, but are possibly not available in a small enough diameter for a steering system. Dennis. |
#5
posted to rec.boats.cruising
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Hydraulic steering: lines with severe soft spots
Len,
Some hydraulic systems require the use of rather specific fluids.Using the wrong ones can cause part failure. You may wish to consult with the manufacturer of your boat or it's steering system. If you did use the wrong fluid then you may experience other failures. If you are using the proper fluid your hose could be dying of old age. Dave M. |
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