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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Hydraulic fluid question
On my new old jack, I put a pint of jack oil in it, and it worked up and
down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? May just flush and add new oil, but flush with what? Steve |
#2
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Hydraulic fluid question
On 2009-09-10, SteveB wrote:
On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? I had milky compressor oil once, in the old Quincy that I have. I set it in a plastic jar on purpose to see if it would separate. The short of it is that it did not separate after several weeks. i May just flush and add new oil, but flush with what? Steve |
#3
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Hydraulic fluid question
"SteveB" wrote in message ... On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? May just flush and add new oil, but flush with what? Steve Put it in an old pot on the stovetop - heat to drive off the water - no warrantee / don't burn your house down / don't get caught by the missus etc. I don't know if it works but it should - may cost more than new oil...... |
#4
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Hydraulic fluid question
"SteveB" wrote in message ... On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? May just flush and add new oil, but flush with what? Steve Add a bit of acid and the water will separate. Then you have to neutralize the acid somehow. |
#5
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Hydraulic fluid question
On Wed, 9 Sep 2009 21:25:57 -0600, "SteveB"
wrote: On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, No and can I then recover the oil and toss the water? Having had a steam heating pipe develop a pinhole leak into a tank containing 50,000 litres of lubricating oil being manufactured, the only way to remove the water is to heat the emulsion until the water evaporates. We had to heat the oil mix to 80C for about 3 days ( in another tank) until the oil was dry ( crackle test ). We guessed that there was about 200 litres of water mixed in the tank as it was almost overflowing through the dip hatch. That happened to about 6 tanks over a 6 month period in '92, not too bad as they were built in '65, 27 years of continuous use before failure of the heating coils. May just flush and add new oil, but flush with what? First flush with kero, then flush with new/dried oil, then heat jack to about 45C ( hot to hold ) and flush about 3 more times with new/dried oil then final fill with new oil. Alan |
#6
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Hydraulic fluid question
"Buerste" wrote in message ... "SteveB" wrote in message ... On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? May just flush and add new oil, but flush with what? Steve Add a bit of acid and the water will separate. Then you have to neutralize the acid somehow. For $4, I'll just go get another quart of oil. |
#7
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Hydraulic fluid question
"SteveB" wrote in message ... On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? May just flush and add new oil, but flush with what? Flush with kero and refill with fresh jack oil. |
#8
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Hydraulic fluid question
On Wed, 9 Sep 2009 21:25:57 -0600, the infamous "SteveB"
scrawled the following: On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? Aw, ****. stryped, is that you hacking SteveB's account? May just flush and add new oil, but flush with what? Denatured alcohol. It'll absorb the moisture. -- Government is like a baby. An alimentary canal with a big appetite at one end and no sense of responsibility at the other. --Ronald Reagan |
#9
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Hydraulic fluid question
On Sep 9, 9:25*pm, "SteveB" wrote:
On my new old jack, I put a pint of jack oil in it, and it worked up and down. *It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. *Aha, I suspected water. *I drained all the oil, and it was a milky gray versus the light black of new oil. My question: *will this separate overnight, and can I then recover the oil and toss the water? May just flush and add new oil, but flush with what? Steve "light black"?? What are you using, old crankcase drippings? The jack oil I have looks like regular straight mineral oil, clear, no color at all. In a pinch, I've been known to use 10W30, but the stuff that leaks out of the chink jacks I have is clear. Stan |
#10
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Hydraulic fluid question
Ignoramus9171 wrote:
On 2009-09-10, SteveB wrote: On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? I had milky compressor oil once, in the old Quincy that I have. I set it in a plastic jar on purpose to see if it would separate. The short of it is that it did not separate after several weeks. Compressor shop told me I need to run the compressor over an hour once in a while to boil off the water in the oil. |
#11
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Hydraulic fluid question
On 2009-09-11, Bob F wrote:
Ignoramus9171 wrote: On 2009-09-10, SteveB wrote: On my new old jack, I put a pint of jack oil in it, and it worked up and down. It sputtered a couple of times, and kicked out some milky looking fluid from the filler hole. Aha, I suspected water. I drained all the oil, and it was a milky gray versus the light black of new oil. My question: will this separate overnight, and can I then recover the oil and toss the water? I had milky compressor oil once, in the old Quincy that I have. I set it in a plastic jar on purpose to see if it would separate. The short of it is that it did not separate after several weeks. Compressor shop told me I need to run the compressor over an hour once in a while to boil off the water in the oil. I heard that, too. I will see if I need to. I did run my 7.5 HP Quincy for up to 40 minutes nonstop for that reason (and to test whether it had any problems). i |
#12
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Hydraulic fluid question
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