Cam you use a th350 torque converter on a 700r4?
Lockup is easy to run. Trucks in the 80's (Full size, C/K) used a vacuum regulated TCC setup before they went fuel injection in 1987. Very simple to setup. Not sure why you'd be putting a diesel trans in that car, while the gear ratios will be the same, the governor is going to put the shift points in a HORRIBLE spot for a gas car with decent rear gears. And no, the trans are not all the same. Ignoring the governor, and all the millions of other changes (thrust bushings vs bearings, number of clutches, etc) in 1987 they changed the casting of the transmission, making it far better. But hey, what do I know?
How do I identify a lock-up torque converter?
The lockup converters are flat on the flexplate side where the clutch engages with the cover. http://www.makcotransmissionparts.com/TC... The non-lockup converters are rounded on the flexplate side since they don't contain a clutch. http://www.makcotransmissionparts.com/TC...
What are some Symptoms of a Torque Converter starting to Fail?
I own a transmission shop, and have seen this a lot. Changing the fluid & filter will really help the problems. Get a bottle of some stuff called "Lubegard" from a parts store, and add that to the fluid change. It will fix the sticking valves that you have, and return the operation of the tranny back to good as new. With the Lubegard, get the one thats in the white bottle, or the one that is not for foreign cars, but I believe it is the white, and not the black bottle. As for the Torque Converter, it will do wild things IF the engine has a miss in it under a hard pull, as in a bad spark plug breaking down under a load, like going up a steep hill in lock up. Use a bottle of STP (black bottle only) fuel injector cleaner to 3/4 tank of fuel every 3rd tank, and that should make the engine a lot happier. As for the Catalytic Converter, it shouldn't make it do anything out of the ordinairy if it is cracked. Have it welded up, or put a new free flowing one on it. The Torque Converter can go bad, and many people mistake an engine miss, torque converter shudder, or an engine vacuum leak for a converter going bad. An out of adjustment brake light switch can also cause the torque converter to no lock up sometimes. A sticking valve within the transmission is the usual cause of an erratic lock up that will mimic a bad converter. Rule out the obvious before you assume its going bad, and/or have it rebuilt. To be honest, even a bad throttle position sensor will make you think the converter is going bad. If you will do what I have suggested, you should see great results. Part 2: A hole in the cat converter can make this noise. How? When you are pushing on the gas, and let off quickly, it will suck cold air into the exhaust, and cause a bang. You may have a bad dough-nut gasket or some type of leak in the exhauset system allowing the air to be pulled into it, and yes it will make a loud bang, and could even split the pipe or cat converter. Has your vehicle been louder than usual kind of like it has a leak in the exhaust? Glad to help out, Good Luck!!!
What are symptoms of a bad torque converter?
Several things…Leaking fluid from the front of the vehicleA whirring noiseIf you give it a little bit of gas going over around 45mph and the car bucks like you’re driving on a rumble strip but stops if you put it in 3rd or give it more or less gas (or if you keep your foot on the same spot on the gas and apply the brake) that is almost certainly the torque converter. I have a car currently that needs a new torque converter and does this.The check engine light comes on with a code related to the torque converter. On many transmissions from the past 20 years or so, the torque converter will not engage if there is an issue with the torque converter.
Does a CVT transmission uses torque converter?
A CVT - like about any other gearbox - needs some sort of a clutch. If your vehicle has no clutch, then the engine will stall as soon as the car stops. Many vehicles with CVT transmission use either a centrifugal clutch (which closes the connection as soon as the engine has reached a certain degree of revlutions) or they have an electronic controlled clutch (which basically does the same) These vehicles are quite easy to detect, because they do not move when te engine is running at idle and the transmission gear selector is in drive mode. If you do not want to use a clutch, you can also use a torque converter. CVT gearboxes with a torque converter often can be spotted from their operation when the engine is running: Then the car crawls - like the cars with standard automatic transmissions do. My 2001 Fiat Punto Speedgear had a CVT gearbox made by Fuji, and the car would crawl when the engine was running and the gear selector was on drive position.This car with its CVT gearbox was very easy and smooth to drive, especially in city traffic. The downturn: It burned quite a bit of fuel.
How does Honda’s CVT work without a torque converter when the vehicle is at a complete stop without the engine stalling?
The solution is quite simple, the CVT transmission in the Honda uses a wet clutch similar to that found in a standard automatic transmission. While stopped the clutches are all released and there is no transmission of power to the output and CVT belt.To reduce/remove hard shifting the engine power passes through a torque dampener, then to the CVT input shaft. Once throttle speed comes up the drive clutch is energized and begins to apply the clutch locking the engine input to the CVT input shaft. For forward gears there is a clutch that is applied for direct drive to lock the input shaft to the CVT input pulley and belt.This causes the input pulley to drive the CVT belt which turns the CVT output pulley.The CVT output pulley is connected to the CVT output to the drive axle through a start clutch which is controlled electronically to determine the gear ratio and style of driving required..Reverse is accomplished by releasing the input drive clutch and engaging the reverse brake which provides input to the CVT pulley through a planetary gear which provides reverse output.The long and the short of it is the transmission goes into neutral below a certain speed / RPM. Once you step in the gas, the drive clutch is engaged and the process begins.
How does the torque converter function during gear shifts?
Torque converters are type of fluid coupling used in automatic transmission. The reason why torque converter is favorable in this application is because being a fluid coupling its main function is to "buffer the torque" between the engine and the transmission. For example when the engine is running but the gear is in neutral, the impeller and turbine in the torque converter spins almost the same speed. Because no load is holding to the turbine (which is connected to the transmission while the impeller is connected to the engine shaft) due to the gears being in neutral thus it just spins freely. The moment you move the shifter to DRIVE, the first gear immediately engages after you release the shifter button. This results in abrupt resistance exerted to the turbine because the turbine now is not free spinning it is now spinning the drivetrain connected to the wheels. This also results in rapidly decreased rational speed of the turbine. But because the impeller and turbine is connected via fluid and there is no mechanical contact therefore the engine will not stall. The abrupt resistance of turbine cannot cause the impeller to stop spinning because of the they are not really in contact with each other. This happen though all gear changes be it upshift or downshift. The torque converter does not open it is always close means the impeller is always trying to spin the turbine.
How does an ECU change the condition of torque converter from lockup off to lockup on? Is it based on fluid pressure or speed?
Modern TCs have a lockup clutch. The torque converter lockup clutch is similar to the clutch in a manual, except that it is electrically operated.The TC itself always slips (unless the lockup clutch is engaged), but at high speeds the fluid path is so designed that the two rotors are almost locked together.At lower speeds the flow is designed to give a torque multiplication.
How do torque converters reverse the direction of traveling vehicles?
A torque converter doesn't change directions to go in reverse. It uses the reverse gear in the transmission to go in reverse or turns first gear backwards within the transmission.The torque converter takes the rotation from the engine and pushes it into the transmission but the transmission decides how to make it go whether it's 1st, 2nd, reverse and so on.So the torque converter operates the same going forwards and in reverse, it's the transmission that decides what gear to go in or what direction to go.