The last row contains the Output Shaft, Governor Assembly and the Output Shaft Support Bearing. It continues to be lauded for its reliability, smooth control and power. Mention this add to receive this special offer. The reaction shaft has a bushing in it to support the input shaft which is part of the rear clutch assembly , oil pump assembly. The rear clutch is on in all forward gears. Many thanks to David Frey, Vicki Milley, Debbie Hoflo, and a very special thank you to Tom Mallot for his photographic help. Loosen the adjusting stud until you can slip the bar that goes from the adjusting stud clip to the band.
I'll explain later why the low-reverse drum must be held stationary, but for now bear in mind that the drum needs to be held during manual low, drive breakaway or low , and reverse. Torqueflite automatic transmission: major components by Tom Hand Courtesy of the with our most sincere thanks. The word firmer is relative; the shifts are not severe in most cases this depends on kit manufacturer as well as intended usage , they are just more noticeable. Also, I need to know what rebuild kit I need to buy. I hope its only a simple o-ring and not an expensive fix, like a new 5-speed put in place.
All eBooks purchased from cartechbooks. Pull tranny back a couple inches so flex plate clears engine housing. Be very careful not to score the walls of the servos. The Torqueflite is relatively straight forward. There are many good forums to get answers to questions. Not only were automatics originally used for general driving comfort, they quickly found a place in competition vehicles.
The only thing left to spin is the rear annulus gear which is splined to the output shaft. However, the second try, I pulled the valve body, and the seal went right on. This band could produce much greater holding power than the single width cast or flex band on most other 727s. Modifications made since 1966 have been small and related to longevity and driver comfort. 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.
The reaction shaft holds the stator stationary in the torque converter and it supports the input shaft in its I. The other modification I suggested at that time was to reduce the input shaft end play down to 0. Reasons for Modifications Stock Torqueflites, since the very beginning, have been very reliable. These transmissions were coded A-488s and were standard on 1957 Imperials and other Chrysler models. Hand has built, raced, and written about TorqueFlites and was fortunate to have grown up in a drag racing family as the eldest son of the famed Pontiac expert Jim Hand. Once the planetaries are utilized, you get gear reduction and torque multiplication; or in other words, first or second gear depending on planetary usage. Whether you are racing or restoring, you'll find the Torqueflite A-727 Transmission Handbook a master reference for rebuilding, modifying and racing your Torqueflite transmission.
My answer was the input shaft end play was too great; the specifications allow too much clearance, 0. Another method is to place the housing in the oven and heat it up, and put the bearing in the freezer to chill it. You can follow Jefferson on Facebook Jefferson Bryant , Twitter 71Buickfreak , and YouTube RedDirtRodz. No, unfortunately we cannot accept returns for eBooks. This should provide a 3000-stall, which will put the engine right in the middle of its power band. The amount of pictures and their quality is unbelievable.
You must download and install Adobe Digital Editions software on each device you plan to read from. Prices of kits and recommended usage will he discussed. In the lower right portion of the picture is the governor assembly and the output shaft support bearing with their associated snap rings. The ring will slide out. . There is little doubt that some of these automatics could be prone to failure, or at least need a thorough rebuild. This will be justified and explained a little later.
Kit Variations and Proper Selection for Required Results This is the point where I'll plug for what I know works. The rear clutch is still rotating the annulus gear and the sun gear is stopped so no torque is transmitted to the rear planetary. I'll go through a gear by gear description explaining the active components and how they combine to get the different gears. This would prevent the front clutch retainer from wobbling on the reaction shaft support, especially with that narrow retainer bushing, causing wear to the front clutch retainer and the resulting front clutch failure. There are reasons for this but they are not important to the overall explanation of the internal operations. There should be a thrust washer on the end. I'd also consider a washer kit, a bushing kit, the one way roller clutch, etc.
Pull the snap ring and the clutches should pull right out. This was with a front clutch retainer that still had the narrow bushing, proving that reduced end play plays a greater role in preventing failure than the wider bushing. Remove shift cable end from lever assembly. Slide the drum over the bearings. The 904 has a smaller over0running clutch so it depends on the band to give it sufficient holding power to prevent breakage of the clutch. The reverse piston spring is a large metal washer similar to the clutch spring for a standard transmission.
Several people I spoke with had had the wavy snap ring replaced with a flat snap ring. If not, your bench will work. The world would be a much better place for us vintage Mopar owners if Tom had written the factory service manuals! 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. Thread on the nut and tighten securely. Part 1: Overview, and what each part does This is part one of a three part paper. Hand walks you through the TorqueFlite rebuild with color photos showcasing step-by-step procedures with highly detailed, easy-to-follow text.