Seals get generous amounts of transmission assembly lube. Note: There have been many engineering changes in this transmission since its introduction. Prior to assembly, closely re-inspect all parts for unusual wear patterns or damage. Reassembly Step-1: Begin Assembly Assembly on this 1974 Ford C4 Select-Shift transmission begins with the front pump assembly. Rigid Front Band - 1. To reduce line pressure, counterclockwise.
Covers transmission assembly, dis-assembly, diagnosis, and troubleshooting. All you have to do is fill it with C4 internals and make the necessary modifications, which are minimal. Step-15: Install Intermediate Band Fit the intermediate band around the reverse-high clutch drum. The main thing you want to pay attention to is cover and piston size along with Ford part number. The reverse-high clutch assembly does not have to involve special tools. When line pressure is too high, shifts become harsh.
The low-reverse drum is locked by the low-reverse band, which keeps the rear planet carrier from turning. Note primary right and secondary left valves. Step-11: Install Number-7 Thrust Washer Number-7 thrust washer goes on this side of the reverse planet carrier. The case-fill looks like this on the righthand side, with provision for a dipstick tube. C4 flexplates exist in four basic sizes. When vacuum exceeds spring pressure, you reduce control pressure. The Ford C4 is a three-speed, medium-duty automatic transmission introduced on 1964 model year vehicles and produced through 1981.
The governor is still doing its job, the clutch circuit is hydraulically tight, and the 2-3 shift valve is free. There are four or five clutch frictions in a stock C4 V-8 forward clutch. One of the major differences between the 6F35 and 6T40 applications is computer location. This valve is affected or modulated by throttle position and engine load, which directly relates to intake manifold vacuum. The 164-tooth flexplate and bellhousing were more common to fullsize cars and trucks, though they were fitted to 289 High Performance V-8 applications in compacts and intermediates. Front planet gears rotate around the stationary sun gear, which is connected to the input shell.
Valve body identification can get tricky, but not if you know what to look for. Solenoid operation and control are also different between 6F35 Generation 1 and 2. The sun gear is driven by the input shell, which drives the reverse planet gears. Where ordinary checks of the T. This short tailshaft housing is for an application where it is supported from above instead of a crossmember underneath. At higher elevations, your engine may struggle to maintain 18 inches at idle.
In reverse at 3 inches, expect to see 215 to 217 pounds of line pressure. Check the through-detent upshifts by pushing the accelerator to wide open throttle in D and holding it there. Not every transmission shop adjusts bands this way. Just shows the demand for and popularity of the Powerglide. They just seem to keep going and going. When vacuum is low throttle open , this valve signals shift valves to delay upshift and the main pressure regulator to increase control pressure while the vehicle is under acceleration.
. Step-6: Install Governor Distributor Governor distributor is installed next, gently tapping it into place. Guides power safely through the transmission thanks to innovative design and ultra-high-strength materials to stop spline twist and breakage. Spline the forward clutch hub and ring gear into clutch frictions by gently working the ring gear back and forth until fully seated. This transmission can be found in the 2005 Navigator, 2006 Explorer and Mountaineer, 2007 Expedition, 2008 F150 and 2010 Mustang. The best street frictions are those red factory original pieces. Does engine misfire or bog down under load? The patent-pending design completely eliminates pin bias and is packed with many more unique features to make it the ultimate servo for even the most extreme applications.
Buy cheap transmission parts and you can expect shorter transmission life. In other words, the input shaft turns one way and the output shaft is driven in the opposite direction. Step-2: Install Valve Body Manual-shift valve bottom is tied to manual-shift control linkage. Be choosy about the type of aftermarket transmission parts you use. Enjoy a rewarding career and relaxing quality of life in beautiful Southern Vermont.
However, fitment is tricky to impossible in compacts and intermediates, which leaves you with case-fill only. There are 12 rollers and 12 springs. The blended-bell case is known as a pan-fill because the dipstick tube goes into the pan instead of the case. Valve bodies between 6F35 Generation 1 and 2 are also different which indicates the two are not interchangeable. . High Gear When it is time for upshift into direct or final drive, both the forward clutch and reverse-high direct clutch are applied.
The ring gear then rotates around the front planet gears, which are tied to the front planet carrier, which is tied to the output shaft. Force stubborn pieces together and you damage critical surfaces and parts. Step-13: Install Reverse Planet Carrier Fit the reverse planet carrier into the reverse ring gear already installed in the case. Check for proper fit, then lube for installation. It does not match up with your flexplate, front pump, or starter either. Look for E2, E3, E4, E5, and E6 casting numbers on this bellhousing. Because of its cast iron construction, the Ford-O-Matic was very heavy.