On the right is a C6 three-pinion forward planet carrier. This weak spot for C6 transmissions must be closely inspected. The C6 differs from the smaller C4 in its low-reverse function. This means you are faced with choosing between at least four basic types of C6 bellhousing patterns. This spring returns the piston to rest when hydraulic pressure stops. Once the primary governor opens, allowing fluid pressure to pass, the secondary valve comes on line as a means of controlling the shift point based on vehicle speed. Replace this spring with the natural-metal spring from the kit.
Step-6: Insert Frictions and Steels Alternate clutches and steels with this clutch friction being first after the wavy washer. A An automatic transmission manual valve body is a modified or aftermarket valve body which puts full control of when the transmission shifts in the drivers control. When you apply the intermediate servo and band to the forward clutch cylinder, power is channeled through the forward planet, which becomes second gear during the 1-2 upshift. Replace vs Rebuild Some transmission repair shops might offer the option of rebuilding your current valve body instead of replacing with a brand new or remanufactured one. To get a soft shift, there has to be clutch and band slippage, which means slippage is programmed into valve body design. I live in Lahore, Pakistan and there are not many highly qualified technicians here so your well considered advice will be greatly appreciated as Ive already spent over 5000 usd and the valve body and labour is another 4000 usd.
We do not recomend synthetic transmission fluids. Step-4: Install Thrust Washer This is the number-1 selective thrust washer, located at the front pump, which controls geartrain endplay. When you apply the reversehigh clutch, it engages the forward clutch. It easily happens when it downshifts to an almost complete stop such as first gear will engage and when shifting up, it will jerk badly if I press the gas a little extra. The only really bad news with C6 transmissions is internal drag due to dated thrust washer design, which promotes friction.
Step-2: Install Lock Ring This lock ring secures forward clutch piston. Low-friction Torrington bearings reduce internal friction by a wide margin. The trans filter was changed 75,000 miles when I got the car in 2000. So since I still had a warranty on the parts and labor, I took it back to the dealership where I had all of that recent work done. Step-6: Install Washer Lube and install the number-10 thrust washer.
Comes with complete, easy to follow instructions. As you carefully separate the halves, take note of check ball and valve locations. Torque is 20 to 30 in-lbs. Whenever you source a C6 valve body, always determine origin because applications vary greatly. I cannot overstress the importance of checking clutch clearances followed by an air-check on each. Instead of a low-reverse drum as in the C4, you instead have a low-reverse clutch package tied to the case, which performs the same function in a C6. There would be a violent jerk.
Generally speaking, if you have a higher mileage car 100,000 miles or more , you should simply replace your valve body. Fluid flow begins at the pump cavity and flows into the torque converter. Use a center punch for alignment. In reverse, you want 60 to 93 pounds of line pressure. Manual valve bodies are used in most every type of competition activity involving an automatic transmission, to provide the driver with the additional vehicle control offered by having the gear changes occur on command.
I have a 2008 dodge nitro with a 3. The Audi dealer said that when they opened up the transmission they observed that the Valve body is damaged and needs replacement as the circuits on it are not properly transmitting the signals and the jerks are as a result of this. This is the small-block C6 with the six-bolt small-block bellhousing for 351W and 351C engines. Step-5: Air-Check Clutch Reverse-high direct clutch can be air-checked through the front pump. Torque is 12 to 20 ft-lbs. The jerk feeling while driving is still felt once in a while.
Prior to 1972, a screw-in throttle valve and gasket is used. What do you think the issue could be? Clearances are determined by snap-ring thickness. This gives you a gear reduction of 2. A pressure-relief valve prevents overpressure and catastrophic failure. The number of springs depends on application.
The greater the intake manifold vacuum, the lower the control pressure for a sooner, softer upshift. At a glance, the huge C6 pan has a little dogleg at the vacuum modulator, which makes it easy to identify. You can see the rpms shoot up inbetween gears before in engages second gear. Torque is 20 to 30 in-lbs. Three ratios are available: 1. It is not only about increased line pressure, but the all important timing. I have faced the problem that the car is not moving in drive mode D after driving about 25 km.