Figure 1: Bottom plate of clamping apparatus (left) has a slot (arrow) to clear a gusset on the bottom of the Element's reservoir. Modified Element brake master cylinder reservoir cap 46662-S5A-003 (lower right) has a Schrader stem with the valve removed and an O ring under the top washer. It also has an extra gasket on the underside (red ring, Figure 2).

One-Person Power Brake Bleeding

I have a DIY pressure bleeder made from a garden sprayer and common pneumatic hardware. It worked fine on AMCs, which use a flat-top steel master cylinder with integral reservoir: I simply used a flat plate with a valve stem and gasket material, clamped down with big U bolts.

The Element's plastic reservoir, OTOH, resisted my prior attempts to get a seal. This thread at Element Owners Club gave me the impetus to try again.

No leaks at 12 psi with the new gadget.

It's great to be able to once again bleed the brakes system quickly, and without a helper.

Would like to see what the Honda setup looks like, if anybody has a photo.

Figure 2: Bottom plate has one countersunk screw (arrow) due to tight clearance at the clutch fluid reservoir. Top plate (upper right) is padded to spread force over the dished cap.    Figure 3: Reservoir setup in action. The wing nuts don't need to be torqued tight, just evenly.

Figure 4: Long view, showing high-pressure air source (yellow coil hose), 0–15 psi regulator, pressure vessel (converted garden sprayer), and clamping apparatus on the reservoir. The low-pressure regulator came from a plastic-welding kit; I couldn't find one separately.

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