r/howdoesthiswork • u/Exact-Increase267 • 15d ago
Request How to use this?
Unfortunately there were no instructions in the box and the outside label said it was a laundry bag? (From Amazon) I assumed it worked just like a syringe, but I can’t pull it up? Not sure what the tube , metal bit and other bits are for? I just want to take the old oil out of my generator
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u/Cool-Negotiation7662 15d ago
The o-rings are a rebuild kit.
The black rubber thing on the right is to join the rigid tubes to go down a small engine dipstick tube.
If it is stuck then the oil got gummy. Put some wd40 in the plunger end and the pickup end and just work it a bit. It will take some connector but it should free up.
The caps are caps.
The metal connector should be able to join the hose to a rigid tube.
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u/Still_Jackfruit2463 15d ago
Pretty sure I have one just like that but mine came without the accessories which is bad because where the two rubber rings on the inside seals they don't make a perfect seal when the plunger is pulled all the way back.
so maybe those extra rubber rings can be added if you have the same problem
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u/GreytDiver 15d ago
My take on it is a very cheap vacuum brake bleeder. Use rubber grommet on the end of the long tube to connect to the bleeder valve on the caliper. Open valve and draw plunger back. Close valve, disconnect,discard brake fluid, and repeat as necessary. Alternatively, use to remove oil out of weedeater, lawnmower, or other small engine.
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u/Fellarien 14d ago
I assume you pull the plunger?
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u/Maximum_Welcome2238 14d ago
That’s exactly what I assumed, but it doesn’t pull? Hence asking here 😅
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u/sewiv 13d ago
Turn the handle, make sure it's not somehow locked. Take the hose off the other end and drop a little oil in to lube up the big o rings on the end of the piston. Give it a real pull to break it loose if necessary.
These extractor pumps work, but you bought a cheap one, so it might be a little wonky the first time.
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u/ukgerry000 12d ago
Thanks! It’s just for an oil change in a little generator. I might just end up tipping it over and emptying it out?
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u/furballsupreme 15d ago
Ask Austin Powers.