Spline the forward clutch hub and ring gear into clutch frictions by gently working the ring gear back and forth until fully seated. If all else fails, one of the best sources is Transtar for new parts. I was wondering if the typical C6 rebuild kits had the pump with it. If you have at least 18 inches of vacuum and the selector is in any forward gear, you should see 40 to 61 pounds of line pressure. The C6 differs in its size and having a larger case—where bellhousing and main case are one integral casting. If it's the long shaft 4x4, life sucks.
If endplay requires adjustment, there are a variety of thicknesses available. All passages should be clear. Pay close attention to the sleeve drain-hole location, which must line up with the casting provision. Inspect the pump cavity and gears for abnormal wear patterns and scoring. Learn and witness the progression of America's favorite.
Take note of what type of seal is on each component during disassembly to ensure the same type of seal goes back on. The close-up on the right shows how clutch frictions are internally driven. As the sun gear rotates counterclockwise, you get clockwise rotation of the reverse planet carrier. Look for E2, E3, E4, E5, and E6 casting numbers on this bellhousing. On the right is a C6 three-pinion forward planet carrier.
This means the ninebolt 1970-on valve body works with the 1964—1969 eight-bolt C4 case with the added bolt and a locknut. And I don't know about the Haynes. Performance Automatic can sell you a complete C4 ready for street or racing, and it can freshen your C4 core as needs warrant. Make sure the O-ring is thoroughly lubricated. The most popular intermediate-band servos are the C, H, and R, which have the largest piston and bore size for maximum band pressure.
And this is the only phase of C4 assembly where any kind of special tool or fixture is required. I cannot overstress the importance of checking clutch clearances followed by an air-check on each. Step-2: Install Valve Body Manual-shift valve bottom is tied to manual-shift control linkage. New stamped-steel pans are available from Scott Drake Reproductions dealers. Because the C6 has a history of popping into reverse gear without advanced notice, you want to double-check the detent and make sure it is solid and secure.
Check out this dangerous C2 inside. Spring lip must point toward the outside of the case at the roller and toward the inside opposite the roller. Wally, Scott should have the shaft you are looking for. This article will cover the proper torque values to use when working on your C7 Corvette. Step-9: Install Low-Reverse Band First install the low-reverse band, the large band, which has been soaked in transmission fluid.
Step-18: Dress Case Mating Surfaces Dress the transmission case mating surfaces with a stone to achieve a perfect surface to prevent leakage. If you want to reduce internal friction your C4 can be fitted with Torrington bearings. I have torn down and rebuilt a lot worse transmissions. Step-2: Install Throttle Valve Next install the throttle valve assembly and pin. I would suggest an inch pound torque wrench as you also need to torque the valve body bolts 20-40 inch pounds to keep from warping the assy and causing the valve spools to bind. Hydraulic fluid under pressure continues to circulate through the front pump, the torque converter, and return to the sump.
Click on the title above to read more. The C4 transmission employs a conventional fluid coupling known as a torque converter. Torque is measured in lb-ft, meaning the amount of pounds of force it takes to move the bolt holding the wrench X amount of feet away. Input shell and sun gear spline into rear planet. Step-3: Align Intermediate Band Intermediate band and both struts are in place.
Torque bolts to 28 to 40 ft-lbs in crisscross pattern for even torque. The system is protected with drain-back and pressure-relief valves. Locknuts to 35 to 45 ft-lbs. The sun gear is driven by the input shell, which drives the reverse planet gears. Power flows to the input shaft through the forward clutch to reverse-high clutches and drum to the input shell, which is tied to the sun gear. Step-7: Install Parking Gear Closely inspect parking gear teeth for any damage or potential failure points. The tranny i have was completely rebuilt and has 0 miles on it, so i dont' think i need a new tranny, and i believe it has the tail housing on it for the atlas to bolt up, i'll look at it this weekend and see if i cant get the atlas to line up with the holes.