HF Vacuum Brake Bleeder


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Old 11-17-21, 03:12 PM
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HF Vacuum Brake Bleeder

I recently got a Harbor Freight Brake bleeder kit model no. 92924. The trigger on it does not seem to fully engage to allow full vacuum. There is a trigger locking ring that it will not depress far enough to engage it.

Thinking it was defective, I took it back up to the store to exchange it. They had 3 other units on the shelf and all 3 of them are like mine. Are they all defective or am I missing something here in operating it? I'm afraid to squeeze the trigger any harder for fear of breaking it.
 
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Old 11-17-21, 03:33 PM
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What do you mean by full vacuum? The tubing connected to the bleeder valve must remain open under vacuum to allow brake fluid to flow into the bleeder reservoir.
 
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Old 11-17-21, 03:37 PM
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Maybe fully open is a better term? The trigger does not seem to press all the way making me think its not working properly. The vacuum it was producing in the hose did seem pretty weak.
 
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Old 11-17-21, 03:47 PM
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or am I missing something here
Try a Mityvac system, might cost a bit more but it actually works!

Tools are not an expense, they are an investment!
 

Last edited by XSleeper; 11-17-21 at 03:55 PM. Reason: Unnecessary negative comments removed
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Old 11-17-21, 04:10 PM
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This is a tool I will use sparingly so not interested in spending big money on it. It was endorsed by Brian "Makuloco", the YouTube Ford mechanic, he uses it a lot in his shop.

More info:
1) My compressor is a 30 gallon Sears unit rated at 6.4cfm at 90 psi
2) Hooked it up again and it does blow through but does not seem to produce the venturi effect to create the vacuum through the hose. I even disconnected the tee at the end of the hose, no vacuum felt at the hose.
 
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Old 11-17-21, 04:55 PM
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I have several of the solo bleeding kits....and the mightyvac.
I've never found one that works as well as having a second person in the drivers seat pressing the brake.
 
 

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