Not every transmission shop adjusts bands this way. . . But with the right combination of parts, a stepped-bell, case-fill C4 offers convenience and is capable of staying together at more than 600 hp. Make sure the O-ring is thoroughly lubricated. This means there is an abundance of C4 cores available from 10 years of production so you can build the kind of transmission you need for street or strip. The roller clutch not pictured allows low-reverse drum rotation one way, but not the other Step-4: Install Inner Race Documentation Required The inner race fits in the center of the roller clutch.
Follow transmission case provisions for clearance and the low-reverse band goes right in. Look for E2, E3, E4, E5, and E6 casting numbers on this bellhousing. Snap In Replacement Front Band. C4 band adjustments are all coarsethread. Now is the time to be absolutely sure about wear. Unless you have a 1962—1964 221-, 260-, or 289-ci engine with a five-bolt block, you need the improved six-bolt C4 bellhousing.
Confusion abounds when mass rebuilders get pieces mixed up. Locknuts have integral seal lips to keep fluid inside. From the manual shift valve on, it gets complicated. However, the eight-bolt valve body does not work with the nine-bolt 1970-on case. Kevlar bands work quite well for allout drag racing but make no sense on the street. The C4 transmission employs a conventional fluid coupling known as a torque converter. Early units have 10 small clutch-piston return springs, which is what you witnessed during disassembly.
For used parts like bellhousings, there are Ford specialty parts dealers around the country all too happy to help you. Step-4: Install Intermediate Band Adjustment Screw Install the intermediate band adjustment screw along with the locknut. Step-13: Install Reverse Planet Carrier Fit the reverse planet carrier into the reverse ring gear already installed in the case. Now install the reverse ring gear and hub. Be very careful about seal lubrication and protection.
This valve is affected or modulated by throttle position and engine load, which directly relates to intake manifold vacuum. Some builders use Teflon sealing rings with great success. When vacuum exceeds spring pressure, you reduce control pressure. Another issue to watch out for is five- versus six-bolt bellhousings. Reverse-high clutch return springs do differ in old-versus-newer C4 units. The pan-fill C4 does not fit compact and intermediate Fords and Mercurys due to dipstick tube clearance issues with headers and frame rails. There is no leaking coming from the front seals, rear sears or oil pan.
. Pack pump cavities with transmission assembly lube for generous lubrication on startup. Some C4 and C5 applications have an O-ring instead of a gasket. The front planet pinions then rotate clockwise and the sun gear rotates counterclockwise. Steels are driven by the clutch cylinder also called a clutch drum. Not for Type-F fluid The C5 was in production from 1982-1985 and can be identified by the 11 bolt oil pan and 3 forward gears.
For 1970-on, there was yet another revised valve body eightbolt versus nine-bolt along with a corresponding change in the transmission case. I get many questions from customers and people on Ford forums asking about how to tell the difference in C4 year model, case and pan fill, styles of bellhousings etc. Low-reverse band to10 ft-lbs and then back off 3 full turns. To increase control pressure, throttle valve adjustment needs to be clockwise. Bishop I definitely recommend a look at these transmissions, you've got to have a look. Install the springs as shown here.
New stamped-steel pans are available from Scott Drake Reproductions dealers. However, Torrington bearings, and modifications designed to accommodate them, do not come cheap. . This mid-1970s C4 unit has a single large return spring. Best servos are H or R types for full-size Fords and trucks, which are the largest and provide the greatest apply area for better band hook up.
They just seem to keep going and going. Tabs seat into provisions in the reverse planet carrier. Seals get generous amounts of transmission assembly lube. Most of you know Pinto, Bobcat, and Capri were never factory fitted with a V-8. As the sun gear rotates counterclockwise, you get clockwise rotation of the reverse planet carrier. It was primarily used with Ford's inline six-cylinder engines and small V8 engines see Ford Windsor engines , usually up to 302 in³ 5. Rollers lock against the rise in the case, which is how this works as a one-way clutch.