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Not sure it's been discussed. Just throwing this out there as a potential couple bleeding tools for the more "Pro" enthusiast or mechanic who works on a lot of brakes. I have a similar unit which also has build-in vacuum (these don't) ...and the unit is a real time-saver! You might still have to make/buy a flat cap for older GM's/cars.
That's not a bad price Mike, $219.00 with shipping included.. Good looking unit, You just can't beat a good pressure bleeder when doing brakes by yourself. I sent the seller a message asking if they offer the GM style master cyl adapter. If they do, I think I'll grab one of these.
Honestly I think a guy would be better off taking a piece of acrylic (Here), and drilling/tapping a hole for the fitting (and add a schrader valve to release pressure). And then C-clamp it to the m/c with a rubber seal between. Reports by forum members are most aftermarket flat GM-style caps don't come with very good hold-downs and can sometimes 'spit'. The big advantage of acrylic or Lexan is you can 'see' what's going on inside the m/c with a flashlight if needed as you're working. But if the company can turn you onto a quality cap, great ...please share. I've seen other GM bleed caps on ebay too that were in the $12-15 range IIRC.
Or you might be able to take an old cap you might already have around, and braze/weld all holes shut and weld a bung onto the cap .. (for the threaded fitting) onto it. And a release valve if you need to.
Note: I haven't actually used that particular bleeder unit, but it seems nice. I do have a different electric bleeder and it's completely enhanced the brake bleed process. It's particularly good for guys who have a lot of vehicles.
The Lexan MC lid was my idea back '17. Its shown in my photo album about brake bleeding. I think I have $20 into it.
You can see what's going on in the MC with the Motive filling it instead of constantly removing a metal lid.
It's in my photo album, after clicking on my avatar.
For what its worth, I had a glass place of business cut the Lexan to size. Any business that caters to home windows will have Lexan.
I ordered half inch thick so when it's clamped to the MC it won't crack, bend or break.
Having spent a lot of money trying many of the various devices that are supposed to help you bleed the brakes more easily I finally settled on the Phoenix Reverse Bleeder. It makes the job very quick and simple (AFTER you have done it once or twice). The basic idea is that air likes to go UP naturally. I also use a rubber mallet to tap on the calipers and Brass Union Blocks to ensure that all the air is released. I push the air up from each caliper and then remove the excess with a turkey baster with a plastic tub under the master cylinder. You can tell when the new fluid is there when the fluid changes color.
They make these Phoenix Bleeders in a variety of sizes and kits. I have used mine to bleed all my cars and motorcycles as well as my Cessna 172. The Phoenix Reverse Bleeder is probably the only easy way to bleed the hydraulic clutches on many GM Pickup trucks, it is a lifesaver on later Corvettes with their hydraulic clutches.
It might be different than what people are used to but the Phoenix Reverse BleederReally works and works very well!! The base model is about $60 and they go up from there based on your application. I have had mine for well over 20 years and have not had to rebuild it yet. It is very simple to use and Rebuild when needed.
This might be out in left field somewhere, but I use a home blood pressure tester from Costco that cost me $30. Though it's only powered by some AA batteries, it pulls some really good vacuum and i think it could be connected to a collection jar and used to pull all the air out of your bleeders. Should work much better than those hand trigger jobs.
That's a really GOOD idea...LOL. (blood pressure device w/collector cup). I wouldn't have thought of that. I use the vacuum side of my pressure bleeder all the time. Put a drop of gear oil on the bleeder threads and it creates a good seal.
Those blood pressure testers are great tool for applying vacuum for the distributor or headlight testing or other DRY vac leak testing.
However, just like a Mity Vac tool, no matter how careful you are some DOT3 vapor slips past the collection jar and enters the tool. Fortunately, the Mity-Vac can be drained & cleaned of brake fluid.
In the case of the blood pressure tester, DOT3 would accidently destroy the internals of the pump rendering it useless. And a good B.P. tester / monitor is $40.
A Mity-Vac is $25.
Last edited by HeadsU.P.; Aug 14, 2023 at 07:34 PM.
Electric Brake Bleeder
