Bos_Trok
Advanced Member
Was getting a little tired of the constant leak coming from my 60year old pump, and also curious to see if anything had changed in pump tech over the years. Looked for 12V pumps a bit, but everything was huge and meant to run a dump trailer.
I found this pump "Hydraulic piston hand pump 2.7 CID with release knob for single acting cylinder, 1 Qrt tank" from Magister Hydraulics and decided to give one a shot. I knew that it would pump the fluid in both the up and the down stroke, so that seemed like a bonus right there. Did some measuring, and it looked to fit. I wanted to get the 3 quart version to have some extra capacity, but that seemed like it would be too close to the top of the cabinet, and impede the pump stroke.
Installing it was easy enough, this was the only adapter I needed for the hydraulics. I also swapped the output of the pump from the left to right side, that was trivial. Both sides are threaded and there is a plug that goes in the unused side.
The pump mounts to the back wall of the cubby instead of the floor, so you will have to drill 4 holes through the side of the camper and run nuts and bolts.
You can see it takes up a less space vs the old one. The old studs are still there, so its easy to compare the footprint. The knob that lowers it had broken off in transit, but the company sent me a new one. I was still able to use it broken in the interim with a small wrench. It is a tight fit against the door with the knob, so I ended up not using the knob so as not to stress the door hinges YMMV. Ultimately I found that removing the knob and attaching a 10mm wrench to the nut with epoxy made for a nice flush mount handle.
Overall I am happy with the pump vs the stock one. Because it pumps on the up and down stroke, you could say it takes half the strokes. My old one was 38 pumps and this one is exactly half at 19, but the upstrokes are as difficult as the downstrokes, it still seems quicker this way. I wish the capacity was just a bit more, it takes a really full tank to have enough fluid to lift up all the way past the holes. If you have any leaks, you will be topping this thing up. I have used it about 10 times and have not had to top it up. Thats much better than my old leaky pump. I may figure out a secondary reservoir if it becomes a problem for me. The fill port is in the very back, so not as convenient as the stock pump.
Back to the old pump, I took it apart after removal, it's very simple, and could be rebuilt with 4-5 O-rings. Mine leaked at the adjuster, which is at the very bottom, so it was always making a mess. I think there are 2 or 3 o-rings there, and then 2 in the actual "pump". It would have been cheaper and easier to just fix the old one, but then I couldn't wow my friends by showing them how this one pumps on the up stroke as well as the down.
I found this pump "Hydraulic piston hand pump 2.7 CID with release knob for single acting cylinder, 1 Qrt tank" from Magister Hydraulics and decided to give one a shot. I knew that it would pump the fluid in both the up and the down stroke, so that seemed like a bonus right there. Did some measuring, and it looked to fit. I wanted to get the 3 quart version to have some extra capacity, but that seemed like it would be too close to the top of the cabinet, and impede the pump stroke.
Installing it was easy enough, this was the only adapter I needed for the hydraulics. I also swapped the output of the pump from the left to right side, that was trivial. Both sides are threaded and there is a plug that goes in the unused side.
The pump mounts to the back wall of the cubby instead of the floor, so you will have to drill 4 holes through the side of the camper and run nuts and bolts.
You can see it takes up a less space vs the old one. The old studs are still there, so its easy to compare the footprint. The knob that lowers it had broken off in transit, but the company sent me a new one. I was still able to use it broken in the interim with a small wrench. It is a tight fit against the door with the knob, so I ended up not using the knob so as not to stress the door hinges YMMV. Ultimately I found that removing the knob and attaching a 10mm wrench to the nut with epoxy made for a nice flush mount handle.
Overall I am happy with the pump vs the stock one. Because it pumps on the up and down stroke, you could say it takes half the strokes. My old one was 38 pumps and this one is exactly half at 19, but the upstrokes are as difficult as the downstrokes, it still seems quicker this way. I wish the capacity was just a bit more, it takes a really full tank to have enough fluid to lift up all the way past the holes. If you have any leaks, you will be topping this thing up. I have used it about 10 times and have not had to top it up. Thats much better than my old leaky pump. I may figure out a secondary reservoir if it becomes a problem for me. The fill port is in the very back, so not as convenient as the stock pump.
Back to the old pump, I took it apart after removal, it's very simple, and could be rebuilt with 4-5 O-rings. Mine leaked at the adjuster, which is at the very bottom, so it was always making a mess. I think there are 2 or 3 o-rings there, and then 2 in the actual "pump". It would have been cheaper and easier to just fix the old one, but then I couldn't wow my friends by showing them how this one pumps on the up stroke as well as the down.
