As the sun gear rotates counterclockwise, you get clockwise rotation of the reverse planet carrier. You get what you pay for. This extension is used with the deep oil pan shown in the upper left corner. The C5 also has a deeper pan than the C4 along with a corresponding pickup. I am not going to describe each valve or spring just yet.
In the right half of this picture is the kickdown servo assembly, and the kickdown band. Step-2: Install Valve Body Manual-shift valve bottom is tied to manual-shift control linkage. Part three give some of the techniques that can be used to troubleshoot Torqueflite irregularities that I've seen most often. This Tech Tip is From the Full Book,. Step-2: Install Governor The governor installs on the tailshaft.
. Spline the forward clutch hub and ring gear into clutch frictions by gently working the ring gear back and forth until fully seated. And this is the only phase of C4 assembly where any kind of special tool or fixture is required. It is also the timing of clutch and band application and release that makes these kits so effective. It is easy to make this upgrade. Gently press the intermediate-band servo piston into the servo cover. This means the ninebolt 1970-on valve body works with the 1964—1969 eight-bolt C4 case with the added bolt and a locknut.
I've experimented with different types of products and they won't be named here. Clearance is controlled by a selective thrust washer on the reaction shaft support, available in 3 thicknesses. Need help, at your location, with a rebuild in Southern California? Street and weekend-racing C4s can easily handle 250 to 600 hp without breaking a sweat. The staff has been amazing to work with and takes care of their customers better than any other company I have ever dealt with. To overcome this reluctance and to learn at the same time, I got a spare valve body from a salvage transmission and followed the Chrysler service manual in disassembly and reassembly procedures. You have to rock this assembly back and forth to achieve proper planet carrier mating.
However, this is still very streetable and reliable 95% of my Torqueflites get these. Both 904 and 727 Torqueflites use the accumulator to give a cushioned drive breakaway only, depending on which side of the piston the spring is placed. This band could produce much greater holding power than the single width cast or flex band on most other 727s. For every action there is an equal and opposite reaction, so if the overruning clutch was not holding, the car would not move forward. The kickdown servo assembly consists of the retaining snap ring, cast iron seal ring, the aluminum pin guide, the large servo return spring, and a controlled-load servo with its cast iron rings below it. Other performance lovers may buy a car with an auto stick option. Buy cheap transmission parts and you can expect shorter transmission life.
Locknuts to 35 to 45 ft-lbs. Many thanks to David Frey, Vicki Milley, Debbie Hoflo, and a very special thank you to Tom Mallot for his photographic help. If the modulator is not plugged into proper vacumn, the trans will shift very late. If you are interested in more detail than I have given, get the. Everything I read including Ford manuals says to use nothing but MerconV… Whats the deal with that haha? Note that in this photo the forward planet carrier is not installed in the ring gear. If you want fluid to run cooler, go with a cast finned aluminum pan. Additional full throttle and down shift control is provided in addition to all the standard Shift Kit features.
Modifications made since 1966 have been small and related to longevity and driver comfort. 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. Be prepared to measure them with a micrometer and then check clearances with a thickness gauge after installation. With the band released, the front clutch starts spinning. The most common complaint after modification is due to improper product selection I use only modification kits from a company called Transgo in El Monte, California. A seal is used at the end of the housing to ride on the drive shaft yoke to keep oil contained in the case. External Assembly Step-1: Install Governor Screen Install the governor filter screen.
Even with the best factory parts, the C4 is a hardy box that will serve you for years and thousands of miles with regular fluid and filter changes. Step-4: Install Intermediate Band Adjustment Screw Install the intermediate band adjustment screw along with the locknut. C5 intermediate band adjustment is fine-thread, while low-reverse is coarse-thread. Alterations to any original design do not necessarily make that design bad; it just shows that some individuals like things to be different in one way or another. Step-17: Torque Bolts Torque Fasteners Use a high-temperature thread locker on pump bolt threads for added security. Below all this is the oil pan I've shown the Direct Connection deep pan with a drain plug , the fluid source for the hydraulic system some oil cooling is also done by the pan.
Automatic Transmission Exploded View Automatic Transmission Diagram The hydraulic part of the equation is an intricate network of passageways, fluid controlled pistons and servos plus other components that use the magic of hydraulic oil pressure to control the internal operation. Written by George Reid and Republished with Permission of CarTech Inc. Want to see some outstanding photos of a 350 being rebuilt? The channels in both valve body and transfer plate that resemble endless mazes, transfer fluid from valve to valve, or valve to case passageway. These requirements brought the home mechanics and aftermarket manufacturers to some of these same conclusions; design and construction of transmission shift modification kits were needed. The main thing you want to pay attention to is cover and piston size along with Ford part number.
Learn how the factory manipulates shift quality using the. Since direct drive is the only other time the front clutch is used, and the vehicle is already in motion, no extra holding power is needed to sufficiently lock the front clutch drum. When spring pressure exceeds vacuum pressure, you increase control pressure. When vacuum drops open or wide-open throttle , the throttle valve increases control pressure through the valve body and contributes to the delay of upshift at wide-open throttle. The front planet pinions then rotate clockwise and the sun gear rotates counterclockwise. No real problems were noted by changing to the smaller unit except for 1978 early lock-up shuddering, remedied by delaying the lock-up speed a few mph later that model year.