What steps should be taken before overhauling the Brake Master Cylinder on 1990 Mazda 323?

Before overhauling the master cylinder, check availability/cost of new or rebuilt units and kits. Inspect the bore; adjust booster push-rod clearance per specs. For 1997+ models, special factory tool/dealership recommended. Disconnect level sensor, drain fluid, cap lines, remove unit, rebuild with kit, bench-bleed, install, bleed system, test brakes.

Genuine 1990 Mazda 323 Brake Master Cylinder

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1990 Mazda 323 Master Cylinder Part Number: BR70-43-400R-0D
$151.85 MSRP: $201.11
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Product Specifications
- Other Name: Reman, Brake Master Cylinder
- Item Weight: 2.10 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: BR70-43-400R-0D
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following 1990 Mazda 323 Submodels:
- Base, SE | 4 Cyl 1.6 L GAS

1990 Mazda 323 Brake Master Cylinder Parts and Q&A

Q: What steps should be taken before overhauling the Brake Master Cylinder on 1990 Mazda 323?
A: Before overhauling the master cylinder, check availability/cost of new or rebuilt units and kits. Inspect the bore; adjust booster push-rod clearance per specs. For 1997+ models, special factory tool/dealership recommended. Disconnect level sensor, drain fluid, cap lines, remove unit, rebuild with kit, bench-bleed, install, bleed system, test brakes.