On the second one, I was being careful not over tightening it, then it snapped anyways. At this point I truly regret building this engine project. What is the Flexplate Bolted To? If all you have to do is put the shifter in a drive (D) and step on the gas pedal, your vehicle has a flexplate.
There are some particular common problems, including mechanical misalignments, starter system problems, engine tune-up problems, fastener problems and problems regarding interferences. Still waiting for the Bulldog heads which should be "shipping any day now. " How can you tell if something is not right with your flex plate or transmission system? 1) Remove the flex plate. Tech / General Engine. What is a flexplate on a truck. A flexplate is mounted to the crankshaft and connects the output from the engine to the input of a torque converter. Built from 1990-present.
When you engage the reverse and forward gear, the noise and the knocking sound should alert you early enough. 351W (Windsor)1969–1997 28. I tried having converter connected to tranny then tranny to success (this is where I am Cracking the bell housing).
Location: Philly, PA. Posts: 7, 072. Many factors can cause wear to and deterioration of your flex plate. There are a few indicators that the layman can use in order to determine whether the flex plate has developed a fault or become damaged. Early GM(Chevrolet) Small Block Engines. Their lifecycle can outlast that of the clutch but will need resurfacing before installing a new clutch.
Also listen for any rhythmic clunking or grinding noise while the engine is idling in neutral or park. A race car, for instance, may need more clearance than a street car. The torque converter is located between the flexplate and the transmission. Unless you have had extensive experience in working with automatic transmissions, leave this to the professionals! Which way does a flexplate go on sale. It got me the flexplate be installed backwards on a 454? The metal frame of the flexplate itself will have multiple machine-cut holes within the body of the plate. Transmissions and Drivetrain. 97 LT1 Z28 "The Hornet".
They are generally a type of fluid coupling that can multiply torque and is used in transferring rotating power from the prime mover (internal combustion engine or electric motor) to a rotating driven load. The clearance between the converter and the flex plate is about 1/8" for many cars. Note: I took out a 96 expo tranny and put in a 97. 1971 chevy c10 ECE 4. Flex plate removal/install write up. Engines mated to automatics from the factory are not machined for a standard Mopar pilot bushing, will require special bronze bushing to run manual transmission. Brake or wire brush. I am on the home stretch on my Stealth and should be as far as I am going on it by the end of the week. A problem with your flex plate can be very dangerous.
The inclusion of the term "flex" in the name flex plate implies some kind of flexibility and this is another important aspect of a flex plate that differs from that of a flywheel, which is rigid. When they need do need replacing, you can typically get away with using an aftermarket replacement. Other problems can include the engine running rough, or the transmission not shifting properly. Yes the flexplate is bolted to both the torque converter and the crank so you have to pull the inspection plate and unbolt it from the converter, disconnect the transmission to drop it then unbolt the flexplate from the engine. Shims must be flat and consistent pad-to-pad. How to install the flex plate and torque converter. And then, rotate the assembly a few times to make sure it can rotate properly without any bolt interference. Re: Is my flex plate on backwards?
0L LS engines have an extended crank flange that requires a specific flywheel/flex plate. A tight fit can ensure that it would not be easy to remove in future use. Ford FE & Y Block engines. Care must be taken to ensure that the spacer is properly centered by the flex plate lip on the crankshaft. The flexplate must be installed correctly or it will not work properly. Question about flexplate. The ring gear of the flex plate will be far off and won't engage with the starter when you install the plate backwards. The most common problem is that the engine will not be able to start. There was one variation for the Mustang Shelby GT500 at 5. 2) Prepare the surface before installing the new flex plate. A fault on the starter drive sometimes causes teeth or the ring gear to wear rapidly or snap. If, on the other hand, the clearance looks smaller, the machine increases the clearance. It's not the best way but I have changed flexplates by just sliding the trans back a couple of inches on some vehicles. Join Date: Sep 1999.
BAD FLEX PLATE INDICATIONS. In our shop, we have a variety of flywheels for your comfort. Stephen has been an automotive enthusiast since childhood, owning some of his vehicles for as long as 40 years, and has raced open-wheel formula cars. If installed backwards, the weights would be on the inside of the wheel instead of the outside and would not work correctly. This vid might help - take a look at time 00:40-00:50 to see what I mean. When I tighten it, SNAP there goes the bell housing. Which way does a flexplate go online. Mine said in small stamped letters (hard to see almost) "engine side" on the side that goes toward the block. After ensuring that the mechanical and electrical systems are working properly, it is time to connect the starter. So, an engine making noise when starting, often indicates either; a starter failure or broken teeth on your transmission flex plate. You can now fix the flex plate onto the crankshaft. That sucks, hope you didn't warp it.
The energy held in the flex plate/flywheel is transferred to the gearbox and transmission by means of a system called a torque converter which broadly is the equivalent of a clutch on a manual transmission vehicle. I do believe the raised portion where you have the bolts going through - that raised portion should be on the torque converter side. I have built a nice 302 engine, and it is ready to go. Finally, the application for which the vehicle is being used will also impact the amount of space needed between the flexplate and torque converter. Well, I had a nightmare last night.... Why does he need a new flexplate if it was on backward for a short time? Its a 318 motor and a 727 tranny and does anyone know where i could get the bolts for the flex plate and torque converter thanks. The flex plate is made from a sheet of fairly thin stamped steel whereas the flywheel is heavier and solid. Pay close attention to the kind of damage the plate has so that you can correct such issues before installing the new one. To the contrary, if the clearance turns out to be visually smaller, you must machine or shim to guarantee the clearance, since improper clearance can lead to many kinds of serious failures.
If you are having trouble bolting up the transmission when you install a new flex plate, then it is time to reevaluate the process again. Also I marked my old flex plate when I took it off so I knew which bolt went in what hole, according to Steve Christ's book. Also referred to as the 385 series of engines sold between 1968 – 1997.
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