c3 corvette pitman arm torque

These systems leak at the control valve and they can also leak at the power ram. (Photo Courtesy Van Steel). Our performance and installation facility is open Monday-Friday from 8:30am-5:30pm (EST). The difference in pumps is more about pump reservoir shape, fittings and shaft type than anything else. Hand tighten until the bushings are slightly compressed. Whether youre maintaining your Shark Corvette or completing a full restoration, our selection of C3 Corvette Power Steering parts is unsurpassed. This helps keep critical parts within easy reach. Plug Refer to the Chevrolet Shop Manual or other authorized manuals for the correct assembly and torque information. Simply reverse the disassembly procedure discussed in Chapter 6. Do not tighten the two bolts that secure the upper control arms rubber or poly bushings until the car is ready to be driven. lower the weight of the car on it, roll the car, go back and torque the spring & arm bolts with the suspension loaded to the specified AIM torque rating. Original-equipment spring rates usually give the best ride if your only intent is cruising with your restored Corvette. Any out-of-spec measurements cause an annoying vibration that can be felt throughout the vehicle. Yoke. The store will not work correctly in the case when cookies are disabled. Thanks guys. They lock the clutches and provide power to both wheels. When the ball joint stud threads are exposed, install and tighten the nut. Torque to specs. The seals tend to leak if they sit or have high mileage. Removing and Reinstalling 1965-82 Corvette Rear Spindles - Duntov Motor 1963-82 Corvette Rear Suspension Parts - Duntov Motor Company Rebuild Your C2-C3 Corvette Steering Box With Flaming River If you take two shims out of one side, for example, you must place the same number onto the other side. Install the nut and tighten it until the hub barely turns. Make sure the spring is properly seated in the control arm so it does not slip. Now use a ball joint separator to loosen the ball joint from the spindle. Rotate the Posi clutch pack unit (shown on a jig in step 4) until you have enough room to insert the washer. The ram (shown) is attached to the relay rod. Ball Joint Torque Specs - DigitalCorvettes.com Corvette Forums 20, Differential Mount Bracket Then press the second bushing into the arm or onto the shaft. Pump Bolts Turn the wheels (off ground) right and left, lightly contacting the wheel stops. Farmers Branch, TX 75234. Also, the distance between the box and pitman arm on the old box was 1/2" and the new setup is 5/8". Bolts Mounting Bolts You have a thread showing. Clutch It is best to sit the differential onto a jack and then install the frame member. Remember that the threaded end of the link kit must point up. The third arm does the work of both an idler and pitman arm in a recirculating ball steering system. Tubular upper and lower aftermarket control arms are available from Corvette suppliers such as Van Steel. Gather all necessary parts that need to be installed onto the frame. This spring is under a lot of tension and might require the use of sandbags to be placed on the frame to help attach these end links. Use a 13/16-inch socket on the top and a 7/8-inch wrench on the bottom to tighten the bolt. 32878 - 53-62 Pitman Arm/3rd Arm Ball Stud. - Corvette Parts Worldwide These are fairly inexpensive and it is a good idea to install fresh bump stops when putting the front suspension together. 24, Upper Control Arm, Shaft Bolts Spark They are usually to 1 inch in circumference. 25 This illustration shows some but not all of the major parts in a Posi-Traction unit.1. GM torque specs for the pitman arm nut is 120-160 ft-lb.2. 20, Drain Plug On the Corvette, you have power assist whereby you have a manual type of steering gear box but the drag link is actually comprised of a hydraulic valve and cylinder. The frame is light enough for two people to carry it to your work area for assembly. Slowly lower the jack to see if the upper and lower control arms securely hold the coil spring in place. C2 Corvette Pitman Arm & Relay Rod (1963-1967) Books & Manuals Home 63-67 C2 Corvette Parts Steering Systems Steering Linkage Pitman Arm & Relay Rod 17 Items Show per page Sort By 1/2-20 Slotted Hex Nut Price: $1.99 SKU: BL-212 Add to Cart 53-62 Steering Drag Link & 63-76 Relay Rod End Plug Price: $8.99 SKU: SC-533 Add to Cart The Eaton system uses four coil springs, while the Dana utilizes a conical Belleview spring to preload the clutch pack. Be careful to not over tighten them, as it will damage the roller bearings. The worm gear retainer and the Pitman shaft cap can be installed and torqued to specification according to your assembly manual. Remember the coil spring will be pushing down on the control arm with tension. Start gathering various bits and pieces, such as small bolts and brake and fuel lines, and place them in your work area. I just installed my new power steering box and pitman arm. Add or remove shims to adjust the toe-in or toe-out of the rear suspension. The relay rod also connects to the idler arm (far right). Need Pitman and Idler torque specs | Diesel Place The bolts that you bagged and tagged when you removed this unit should be the correct size. 12: Now remove the retaining bolts and take the upper control arms out. Apply silicone lubricant before installing the seal gear into the housing. It is not diffi cult but care must be taken to avoid injury to yourself or others. Pitman to steering cross member nut Idler to pivot nut Idler to steering cross member nut 02 VW Jetta TDI 330K+ miles, 48-52 MPG 03 VW Jetta TDI (Wife Crashed it) 200K+ miles, 40-45 MPG 95 Silverado K2500 6.5L TD Ext Cab, 4x4 When draining the oil from the differential, check for a burning odor, which indicates overheating of the gears and case. The springs push against the clutches with more force as the cars speed increases. Only because there aren't any threads protruding past the nut and the arm is further from the box than it was on my old box. Some even include multistep adjustments to dial in the ride you want. 35: Assemble the tie rods and sleeves. The long-neck pump has a keyed shaft and pulley versus the pressed-on pulleys used from 1975-'82. Each bolt has a wedge near the head (arrow) that prevents it from moving once the suspension has been mounted. in/lbs, Lower Housing to Engine Slowly raise the jack, while the upper knuckle ball joint opening is placed into the top control arm ball joint stud. Water New parts have been welded into place by a professional Corvette repair shop. . Check to make sure hoses are not touching any other parts of the car particularly sheet metal and exhaust manifold. Thermostat Universal Transfer this measurement to the corresponding new tie rod assembly. As you know, both the Eaton 65-79 and the Dana 80-82 Corvette differentials use springs to preload the clutch pack that transfers torque to the unloaded tire. Water Place a floor jack under the spring and slowly lift the spring until you are able to attach a nut to the bottom of the end link bolt. If you are not replacing the caliper, you can make a hook out of mechanical wire (or a coat hanger) and let the caliper and hose hang from the frame. 90 The lower control arm includes a steel shaft and is attached with two 7/16-20 x 1.-inch bolts at each end of the arm. Slowly raise the jack making sure the spring stays seated in the control arm. Feed the shock through the bottom of the lower control arm and insert the top of the shaft into the opening on the frame. Drain Plug 35, Differential Spring Bolts Torque Arm Throttle Cable Included No Yes Transfer Case Assembly Included . In many ways, the camshaft is the command center of the engine. Clutch plates10. Removing Pitman arm from steering box 1,948 views Apr 5, 2018 Like Dislike Share Save Fun with cars - mostly Corvettes 640 subscribers Frame off refresh of a 1974 Corvette. (See Photo #16A.) Lubricate all of the clutch discs thoroughly on both sides with GM Posi-Traction additive. Notice how the end of the coil spring rests in the lower control arm. The fluid pressure reduces the effort it takes to turn the steering wheel. Once this nut is secure, your helper can exit his or her perch on the frame. This part takes a lot of stress and should be closely inspected to ensure that it is in excellent condition before installation. For a better experience, please enable JavaScript in your browser before proceeding. Set up several large tables so assembly parts can be laid out in their correct order. 25: After the shaft and bushings are installed, screw the cap screws, lock washers and collars into place. Four bolts with 9/16-inch heads fasten both strut rods. The front suspension is the perfect place to start reassembling the foundation of your C3. Even if you use the same shims in the same location, always take your completed Corvette to an alignment shop. Torque specifications for 68-82 Corvettes FT/LBS (Unless specified) Front Suspension: Rear Axle: Front Wheel Bearings 12 Differential Cover Bolts 50 Upper Ball Joint Nut 70 Driveshaft to Pinion Flange 15 Lower Ball Joint Nut 90 Differential Front Mounting Bolt 65 Ball Joint Attachment Nut 28 Steering Arm to Spindle 70 Brake System: This is an important area to reinspect before you start installing your parts because the crosspiece that runs under the engine is prone to bending. Supporting the center of the dash is critical so as to not crack or damage it [Click here to read more], General Motors, like all the other car manufacturers of the time, did not put much valuable information on the vehicle identification number (VIN) plate. This has to be done with the weight of the car on the suspension. Comet Torque Converter Clutches & Parts for Go Karts & Mini Bikes Check belt tightness and check for a bent or loose pulley. If you find that the ball joint was bolted in place, then you know the ball joint had been replaced sometime in the past. You can also potentially get hydraulic lines backward during installation from the control valve to the ram and steering becomes erratic quickly. When taking a differential apart, be sure to mark the left- and right-side pieces. This photo shows a typical pinion bearing with a crush sleeve between the inner and outer bearing. After the clutches and side gears are installed, insert a thrust washer on each side of the unit. C2 Corvette Pitman Arm & Relay Rod (1963-1967) Oil Toll Free Order Line. The Fora platform includes forum software by XenForo. This aluminum. Click Here For Details. SAFETY NOTE: To minimize any danger, you may want to use a coil spring compressor tool available at any tool rental or auto parts store to help with the coil spring removal. in/lbs, Link Bushing Bolts The 1975-'79 "canned-ham" pump is very similar to the revised Saginaw pump used from 1980-'82. Main The lower control arm has a deep well that supports the bottom of the front suspension coil spring. Place the frame on four safety stands that are sturdy and protected with pieces of cardboard. Remove the races and seals and clean the trailing arm in a parts washer to remove the grease and grit. Nicks in the fittings and seats will cause leaks because there's a lot of pressure going on here. 40 Ft-Lbs. 15, Upper Shock Mount Bolt 06: Disconnect the idler arm bracket from the passenger side of the frame and then use the tie rod separator to remove the control valve stud from the Pitman arm. Note: C4 - FRONT Bushing Clamp Bolts. They are fitted with universal joints so they move through the arc of the suspensions travel as it encounters changes in the road surface. The lower control arm shaft and bushings remove in the same way except you will need a 7/16-202 cap screw to install in the end of the shaft. Be careful not to overtighten, as it will damage the roller bearings. After the shims have been installed, attach a dial indicator to the differential housing to check the gear backlash. 90 Yellow or white dye (or marking compound) is usually found in a differential kit. Two trailing arms are bolted to the frame on each side and held up with a transverse steel spring (1968-1980). The specialty rebuilders that have seen [Click here to read more], Dash Carrier Assembly Removal Reassemble the powdercoated arms. 25 The relay rod connects to the steering box Pitman arm (lower left). A professional can put the correct suspension settings back into your car. Pan Drain Plug 28: The new pump came with a pulley installation tool. This is how the steering knuckle looks when it is properly secured to the upper and lower control arms. As you raise the jack, position the upper ball joint into the spindle. The box output shaft isn't sticking out past the nut as much as the box I removed. That way when the linkage is installed, the front end alignment will be close enough for you to be able to drive to your local Corvette alignment shop without doing any damage to the front end or tires. Use engine assembly lube to perform this task. 80 in/lbs, Jounce Bumper to Frame Four discs without tabs are on each side. Install the screw and tighten to specs. Repeat this process until you get the correct measurement. Also check the oil for any metal fragments, which tell you a gear tooth might be chipped or broken. Specs. If one wheel loses traction the clutches engage and lock both wheels to provide added traction. The leader in Corvette Parts parts since 1977. This prevents them from loosening and backing out. 10: To remove the upper control arm, start by placing a jack securely under the lower control arm as support. Cautiously tap the side shims into the case to avoid damaging the cast-iron shims. This won't happen if you pay strict attention to how the lines and hoses are routed and installed before taking the system apart. 30, Pressure Plate Bolts A piece of wood or a half piece of pipe is placed on the inside of the control arm to keep the arm from bending while the bushings are being pressed into the control arm. Whenever there is a need, want and use for a torque sensitive drive system device that is infinitely variable from engagement . A torque converter system concept of driver, driven and belt member, the opposing halves or sides of each member being unequal in angle. The C3 rear suspension was an engineering breakthrough when introduced in 1963 on the C2. Because the system is external, everything is easy to access. The frame has now been completed and rolled outside for a final inspection. The power ram shaft A-bracket attaches to the lefthand framerail. The arms are robust but the bearings are prone to failure. Corvette Central Project Split Mod Part 3: Chassis | CC Tech Steering is a vital function for the cars safe operation and a worn or failing steering box needs to be replaced. These springs were installed on Corvettes built at the new Bowling Green assembly plant. For the best experience on our site, be sure to turn on Javascript in your browser. 21: To make the bushing installation easier, place all of the bushings in a freezer overnight. Place a dial indicator over the rotor to to verify rotor trueness. Install the ring gear onto the Posi unit with new Grade 8 bolts and lock washers. When lines are backward to the ram you steer left and the ram applies pressure right snatching the steering wheel out of your hands violently. 1963 - 1982 Corvette Idler Arm C2 C3 Midyear NEW (Fits: Chevrolet Corvette) $44.00. This is also a good time to steam clean the parts and repaint or powdercoat before reinstallation. 80, Mount Bolts ft. and install cotter pin. Why tighten more?? Oil Notice that it is equipped with power steering. 70, Rear Outlet 2, Wheel Nuts 30, Torque Arm Attach a nut to the bottom of the bolt using a 7/8-inch socket on the nut and a 13/16- inch wrench on the bolt head and torque it to 100 ft-lbs. 27, Flywheel to Engine Largest Inventory. Laying them out on your workbench in the proper order will help you identify the correct placement of these parts during reassembly. The new shock runs up the middle of the spring and is attached to the upper frame and the lower control arm. The front steering system connects to the spindle on each side of the car to provide steering to the front wheels. Just try one with a different thread. Read more about our performance and installation facility here. Increase engine speed to approximately 1500 rpm. Torque the bolts to 70 ft-lbs. Place a floor jack under the lower control arm so it rests on the jack. This puts the trailing arm in the correct ride height position and makes putting the half-shafts and strut rods into the car much easier. The C2/C3Corvette has two identical tie rod assemblies that connect the left and right steering arms to the steering relay rod. Push the spring up into the upper control arm spring well in the frame. In addition it houses the front wheel bearings, brake rotors, calipers, and brake lines. 28, Upper Control Arm to Frame As with any major rebuild, you will need more than average mechanical ability and some specialized tools along with factory shop, component and assembly line manuals. Verify that each bolt has been properly installed and torqued to specifications by marking them with White-Out. Filter Bypass Valve This cutaway of a C3 differential reveals the components to inspect when the rear case cover is removed. It's Worn C2/C3 Corvette Power Steering Replacement The suspension must have time to settle on the springs before these bolts are tightened. Transmissions | O'Reilly Auto Parts 30 If you pull the pitman arm, it is sometimes possible to see the twist in the sector shaft splines. Three basic types of Saginaw power steering pumps were used in C2 and C3 Corvettes. Apply some dye according to the kit instructions. Worn Posi-Traction clutches often chatter at low speeds when making a sharp turn. 65, Spring Link Bolt to Torque Arm.- 20 Torque them to 30 ft-lbs. All new pumps come minus the pulley so you will need to use a puller such as this to remove the old pulley from the pump without damage. Service the pump with just enough fluid to submerge the pump inside the housing. Corvette "power assist" steering has long been a very effective tool in reducing steering effort while keep us in touch with road feel, which is why Corvettes were equipped with this type of power steering to begin with. These control arms come ready for installation. Use a torque wrench to secure the box with 9/16-inch bolts and torque to 30 ft-lbs. Visit our showroom to setup an appointment to have your Corvette tuned, accessorized, enhanced or more. Any mismeasurement makes it difficult to align the chassis correctly. 45, (+ to Align Cotter Pin) Tighten the nuts evenly on both sides. This bracket is attached to the lower control arm on each side of the front suspension. I figger it ain't going no wheres. Your completed front suspension should look like this unit, which is installed on a 1980 Corvette. 50 The upper and lower control arms should look like this once they have been installed. Now install the new pump, new hoses, and then tighten the belt to specs. Invert the control arm and repeat the process on the other bushing. You are looking for a clearance measurement of .005 to .010 inch. This is a good procedure to complete before taking the car to the alignment shop. These bump stops play a very important role in protecting the suspension in case you hit an unexpected bump too fast and the suspension bottoms out. Contact us here24 hours a day 7 days a week. Once the bolt is attached with the nut and washer, slowly lower the jack. 07: After the Pitman arm has been separated from the control valve, the whole steering linkage will fall to the floor in one unit. Once the spring is in the proper position, loosen and remove the hose clamp. 30, Upper To check the gear pattern, hold the yoke with one hand and turn the ring gear back and forth with the other hand and a 9/16-inch wench on the ring gear bolt. The fl at washer has a notch that matches the one on the spindle to prevent it from turning. Gary 69 vert 350 M20-373's 72 coupe 350,TH400,336's. Reply . 27: The power steering pump was badly leaking so we asked Zip to send us a brand new one. The larger the bars, the more taut the ride. The tie rod screws into the sleeve and connects to the steering knuckle. 30, Axle Shaft to Diff.. Side Yoke Free shipping on many items | Browse your favorite brands | affordable prices. For power levels up to about 500 hp, theres really not much that needs changing, other than to [Click here to read more], Selecting a camshaft is one of the most important decisions youll face when building a high-performance small-block for street or bracket racing. 1963 - 1982 Corvette: Technical Article: In-Vehicle Corvette Steering 70 Master 60, Upper Torque to 25 lb. The differentials are basically all the same inside, but you find some minor changes during an overhaul. Torque specifications for 68-72 Corvettes The 3/4-inch inner camber bolt was torqued to 70 ft-lbs. Rocker The correct measurement is 26-3/8 inches. Vette. Joints U-Bolts This will ease installation. Four 1/2-inch or 9/16-inch bolts, depending on the year the car was built, fasten the brackets to the frame. They start the process by disassembling the old parts. The spring should look like this when installed in its correct position. Removing Pitman arm from steering box - YouTube If the threads engage the entire nut and you torqued to spec, you're good to go. 41: Re-pack the front wheel bearings and install them into each rotor along with the grease seals. Place the control arm in a press and support the other end of the control arm shaft with a 1 11/16 socket. Housing http://www.chevelles.com/forums/album.php?albumid=2153&pictureid=21505, http://www.chevelles.com/forums/album.php?albumid=695&pictureid=6156, http://www.chevelles.com/forums/album.php?albumid=428&pictureid=4468, http://www.chevelles.com/forums/album.php?albumid=826&pictureid=7810, http://www.chevelles.com/forums/album.php?albumid=834&pictureid=7834. Torque these bolts to 100 ft-lbs. Press out the bushing into the socket. 70, 1/2" Bolts - After the nut is on fully, slowly remove the jack and torque both ball joints to specs and install the cotter keys. 44: After the car is sitting back on the ground, you will need to torque the upper and lower control arm bushings, cap screw and collars. Insert the trailing arm bolt through the trailing arm. Recheck the side yoke endplay. Use an adjustable micrometer to verify the thickness of any shim before installing it. Sometimes this sounds a lot easier than it actually is. If your rotors are new and out of spec, return them to the vendor for a refund. Before attempting to [Click here to read more], Choosing big-block cylinder heads depends entirely on the application. In addition, Zip stands behind all of our Corvette parts with our "No-Hassle Guarantee" - That\'s customer service the Zip way! Get the best deals on Pitman & Idler Arms for Chevrolet Corvette when you shop the largest online selection at eBay.com.

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