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dfwallis 
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Joined: 09 Mar 2023
Location: DFW
Points: 562
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 Topic: CA Hydraulic Pump Not Functioning
Posted: 4 hours 58 minutes ago at 12:44pm |
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Not even a hint of pumping, full fresh oil. Do I need to prime it? Not been operated in at least 30 years, probably 40. Piston noise sounds normalish if not a little louder than I remember. Things to check before I take it apart? I adjusted screws out against stops, disabled drawbar control by loosening adj screw and screwing lock screw into the housing, hold plate locked together.
I'm betting suction ball bearing stuck, rusted...
Edited by dfwallis - 4 hours 15 minutes ago at 1:27pm
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1952 CA13092
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dfwallis
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Joined: 09 Mar 2023
Location: DFW
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Posted: 3 hours 44 minutes ago at 1:58pm |
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Ok, oil drained, delicate workbench cleaned, let the surgery begin:( I was hoping against hope, but not unexpected.
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1952 CA13092
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dfwallis
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Posted: 2 hours 52 minutes ago at 2:50pm |
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Stuck piston, gobs o gunk in intake...suspiciously, one of the mounting bolts was loose.
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1952 CA13092
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
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Posted: 1 hour 46 minutes ago at 3:56pm |
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Like them all, but love the "B"s.
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dfwallis
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Posted: 1 hour 24 minutes ago at 4:18pm |
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How do you unstick a fully depressed piston, nothing to grab onto, no back side access.
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1952 CA13092
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steve(ill)
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Location: illinois
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Posted: 1 hour 12 minutes ago at 4:30pm |
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is there a port 90 degrees to the side to blow air into the top of the piston ? If air is not enough, maybe soak thru the port with penetrating oil, then put a spoon full of oil thru the port and compress to build up psi ?
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Like them all, but love the "B"s.
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dfwallis
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Posted: 58 minutes ago at 4:44pm |
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Check valve port inline, but none of the balls move. I haven't researched which direction they check
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1952 CA13092
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ekjdm14
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Joined: 20 Aug 2024
Location: Manchester UK
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Posted: 30 minutes ago at 5:12pm |
Assuming it's stuck because of gunk and not mechanical damage, I'd be inclined to throw it in either a heated parts washer* or ultrasonic tank to try and free things up. If it doesn't loosen the piston it at least ought to free up the check balls and allow you to use air.
I mention damage because of the loose bolt, hopeful someone didn't gouge it up trying to remove previously.
*A dishwasher, minus the salts, can suffice in a pinch. Just make sure to oil parts after drying to avoid flash corrosion, and DO NOT attempt if there's a chance of being busted in the act by the wife! Ours takes about 50 minutes including drying cycle.
Edited by ekjdm14 - 24 minutes ago at 5:18pm
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