Page 33 of Borgeson Catalog by Borgeson

31 click: www.borgeson.com orders/tech: 860-482-8283 Design Information CAUTION: Corvair Steering Boxes Corvairs were rear-engined cars; this means there was very little weight on the front tires. The steering box used in these cars was a very light duty box. It is not recommended for use in a street rod with the engine in the front. Steering gear failure could cause a severe accident. CAUTION: Vega Steering Boxes We also recommend a maximum weight limit of 2500 lbs. for a vehicle using a Saginaw 140 (Vega) steering Box. We recommend the 525 Saginaw box for vehicles exceeding 2500 lbs. Steering Box Adjustment All Mullins boxes are set at the factory to the proper specifications. Any adjustments of the box beyond that will void the warranty and cause premature wear on the steering box. Please do not try to adjust your steering box. Please contact us if you feel your steering box needs adjustment. Power Steering Tips Diagnosing Power Steering Problems When trying to determine what is causing a problem in your power steering, keep this in mind. If the problem occurs only in one direction, the problem is probably in the box or rack. If the problem is in both directions, it is most likely the pump, dirty fluid or hoses. Be sure there are no kinks or obstructions in your power steering hoses and that they are the right inside diameter for the application. Dirty Steering System Before changing any single component of the steering system, inspect the cleanliness of your system. Dirty or black fluid can quickly ruin new steering components. If changing the box or rack, rub your finger on the inside of the reservoir. If it isnt clean, you must flush the pump and hoses with clean fluid before installing new components. Bleeding Power Steering All power steering systems are designed to be self-bleeding, but sometimes they need a little help. After installing new components, fill the reservoir and let it sit for a few minutes. Raise the front end of the vehicle and turn the wheels back and forth slowly with the engine off to allow the steering box to draw fluid. Keep the reservoir full. When the fluid level stops dropping, start the vehicle and continue turning the wheels. When the fluid level remains constant the system is fully bled. Put cardboard under the front tires while testing your steering system. The cardboard will slide on the floor and prevent wearing flat spots on the tires from excessive turning of the wheels while not moving. IMPORTANT NOTE: All GM power steering pumps generate approximately 1,000 to 1,200 PSI of line pressure. This is compatible with GM steering boxes and GM rack and pinion units. If these pumps are used with a Mustang II rack pinion, the steering will feel too sensitive on the highway. This can be corrected by adjusting the pumps flow control valve to generate the proper pressure for the Mustang rack. Hose Kit Spec Sheet The following information is needed for ordering a custom hose kit. Hose Type: Rubber or Stainless Steel Pump Type: GM self-contained, GM remote or other (please specify) If remote pump, reservoir type: Mullins, March, Street Perf., Zoops or other (please specify) Box or Rack Type: Specify Hose Lengths: Specify

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