Water Pump Rebuilding - Crown Auto Parts and Rebuilding

Crown Auto Parts & Rebuilding

Matching Numbers Master Cylinder Rebuilding Service:

When Rebuilding the original is the best way to go!

A multitude of decisions must be made whenever the restoration of a classic or muscle car is undertaken. In most cases, choosing to rebuild individual parts rather than to replace them is the best course, especially when conducting a true restoration when correctness and originality are considerations. This is especially true when the car being restored has nearly all its original parts still intact. At Crown Auto Parts & Rebuilding we specialize in rebuilding matching numbers parts for classic cars and trucks to help you keep that classic matched and on the road to handle today's modern fluids.

The master cylinder is the heart of the braking system. Of all systems on your vehicle, the brake system could be the most important. When the driver steps on the brake pedal, a brake booster amplifies the force, pushing directly into the master cylinder. The master cylinder converts linear motion and force into hydraulic pressure. The “master” cylinder distributes this pressure to the brake calipers or wheel cylinders, also known as “slave” cylinders. At the slave cylinders, hydraulic pressure is converted back to linear motion and force, to compress brake pads or expand brake shoes. In turn, the friction generated can keep a vehicle from moving, or slow it down, converting its kinetic energy into heat energy.

Like all mechanical and hydraulic devices, the master cylinder will eventually wear out. Depending on use, the typical master cylinder might last 60,000 to 200,000 miles. The mechanical parts of the master cylinder, the springs, and pistons are so simple that failure is almost unheard of. On the other hand, the rubber seals can wear out and degrade over time, leading to internal or external leaks.

Here are a few symptoms of master cylinder failure;

  • Sinking Pedal: When the driver steps on the brake, it should depress to a certain point and stay there. If the pedal continues to drop, it could indicate an internal brake fluid leak. Before condemning the master cylinder, check brake fluid level and check for external leaks from brake lines, calipers, or wheel cylinders. 
  • Contaminated Brake Fluid: Over time, rubber seals can degrade and disintegrate, resulting in “dirty” brake fluid. This can be caused by incompatible or hydrated brake fluid. To help these master cylinder seals last longer, always use the fluid specified in the Owner’s Manual, fill from a sealed container, and replace the brake fluid every 20,000 miles.
  • Low Brake Fluid: While leaks at brake lines, brake hoses, wheel cylinders, and brake calipers commonly result in low brake fluid, they are usually easier to identify because they are more exposed. External master cylinder leaks can be hard to identify because the only leak point is at the rear, which is often hidden in the brake booster. If the rear seal leaks, it will often leak directly into the booster, though you may be able to see brake fluid residue at the seam between the master cylinder and the booster. Remove the master cylinder to check more closely for leaks.

Original master cylinders were made specially for the engine size, vehicle type and option it came with from the factory. Over the counter master cylinders are made to fit a several years of different vehicles engine sizes and time frame. By rebuilding your original matching numbers and date coded master cylinder you are assuring yourself that the correct fitment goes right back where it started.  One of the key points in rebuilding your OE part.  Never surrender the original! Rebuild it professionally.

If you have purchased a New Old Stock (NOS) master cylinder from ebay, it is recommended that it be rebuilt before attempting to use it.  We are always here to help.

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Crown Auto Parts & Rebuilding specializes in rebuilding all types of master cylinders used on classic and antique cars from 1920 to 1979.  We are one of the oldest rebuilders in the Midwest with over 73 years in the rebuilding business. We do rebuilds for many classic car restoration companies around the country and for individuals that are sent in so we do our best to give you the fastest turn around possible based on the number of units coming in daily.

We rebuild, restore and remanufacture antique, vintage and obsolete master cylinders for any automotive. We specialize in AMC, Alpha Romeo, Aston Martin, Austin-Healey, Bentley, BMW, Buick, Cadillac, Chevrolet, Chrysler, Cord, Desoto, Dodge, Ferrari, Ford, GMC, Hudson, International, Jaguar, Lamborghini, Maseratti, Mercedes-Benz, Mercury, Morgan, Nash, Oldsmobile, Packard, Pierce-Arrow, Plymouth, Pontiac, Rambler, Range Rover, Shelby, Studebaker, Stutz, Sunbeam, Triumph, Volvo, Willys, and most other domestic and import autos. We also offer remanufacturing services for those seemingly impossible jobs where parts are no longer available.

Our Services Include:

  • Disassembly, glass-bead cleaning, boring oversize, installation of a brass sleeve and sizing of your brake parts back to original specifications. Many rebuilders do not offer sleeving as part of their service. The longevity is significantly reduced for components that can be sleeved but are not.
  • Replacement of all seals, gaskets, diaphragms, etc.
  • Application of proper exterior finish:
    • Most cylinders, calipers, & valves: Cast iron gray epoxy or satin black (upon request)
    • Booster finish restored to O.E. specifications: Satin black, silver/clear zinc, or yellow cadmium
  • ALL units are hydraulic or vacuum tested for leaks and to insure proper operation and performance
  • Returned complete and ready for installation

We have the ability to manufacture some parts in house to replace worn out or broken items. Some master cylinders come to us in a rusted unusable condition and we find it necessary to find you a matching numbers replacement if that is the case..

We are a old time rebuilding shop that builds and restores original master cylinders with top of the line parts one at a time. Our policy is not to exchange master cylinders but to rebuild your master cylinder so you have a pump that was originally matched for your vehicle. If you are looking for a master cylinder rebuilder that is far above the rest in quality, workmanship, parts and customer service with one of the lowest comeback rates in the industry then were the one for you.

We offer quick turn-around time based on condition of the master cylinder along with a 5 year warranty.

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Rebuidling Master Cylinders for:

AMC, Auburn, Alpha Romeo, Aston Martin, Austin-Healey, Bentley, BMW, Buick, Cadillac, Chevrolet, Chrysler, Cord, Desoto, Dodge, Ferrari, Ford, GMC, Hudson, International, Jaguar, Lamborghini, Maseratti, Mercedes-Benz, Mercury, Morgan, Nash, Oldsmobile, Packard, Peugeot, Porsche, Plymouth, Pontiac, Rambler, Range Rover, Shelby, Studebaker, Stutz, Sunbeam, Triumph, Volvo, Willys

Vintage Jeep Willys Master Cylinder rebuilding - Crown Auto Parts and Rebuilding St Louis Missouri

Pricing Master Cylinder Rebuilds:

Pricing is based on cost of the kit plus the labor time involved so contact us via our Rebuild Quote or Contact us via phone @ 314-385-1830

We are located in St Louis, Missouri.  Please package up your master cylinder as tightly as possible and enclosed in a zip lock 1 gallon storage bag when shipping!

Make sure label the ziplock with the year make model and your phone number on the bag prior to shipping!!!

 

Send us complete cylinder and we will return it cleaned, brass sleeved and assembled with new rebuild kit, ready to install back on the car.

Most American Make Master Cylinders: Complete Rebuild & Sleeved

Master cylinder, single circuit, w remote reservoir (many pre-1930)

$195

Master cylinder, "in a box", with rotating arm on the side (some pre-1930)

$375

Master cylinder, single circuit, cylinder and its reservoir cast as one piece (most 1930-1966)

$175

Master cylinder, dual circuit (most 1967 & later)

$245

Master cylinder, 1956 Buick

$445

Master Cylinder, Cadillac 1962 Dual Piston

$250
Metric bore - add 20%  
   
Import Master Cylinders Master Cylinders Complete Rebuild

Ferrari Bonaldi Benditalia brake master cylinder,

$175

Ferrari brake master, circa 1950s

$175

Austin Healey 100-4 Brake Master

$195

Jaguar MX 7 brake master

$245

Jaguar XK120 brake master, dual circuit

$325

Porsche brake master cylinder

$245

Triumph TR6 and TR250 OEM Brake Master Cylinder

$120

Triumph Spitfire Brake Master Cylinder

$120
For all other makes and models please send a request quote  

 

 

 

 

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