Quote:
Originally Posted by globalmarine
Hello, I'm curious looking for answers that may help. I have a 97 SL500 that of course has the 722.6 Trans. It developed a slight knocking sound or better said a continuous tink or clinking sound in park then in gear it would go away then slightly come back until I take off and drive. Only when I slow down or put in park would it arrive again constantly, at least from what I could hear. I was sure it was a cracked flywheel so went out bought one and alas NOPE flywheel was good, took the converter in and rebuilt it but I have a bit of side play on the pump shaft off the input shaft. Should that be there? When I move it side to side quickly it will hit the inside wall of the stator housing and make an almost familiar noise. Has anyone heard of this? Is this a rebuild or am I possibly resolving it with a new converter. They said no obvious problems with the converter though... Thanks in advance.
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That sound you hear is the stator hitting the insides of the converter, this happens in the early 722.6 transmissions as there is a bushing on the K2 drum that goes bad - Once the bushing goes bad your front planetary gearset will start to chew itself to pieces.
Sonnax make replacements for this problem. The later transmissions had a bearing there in place of a bushing, the problem is that parts are not interchangeable between the new and old on a piecemeal bases.
It would be of best interest to not drive the car as this will accelerate transmission wear by atleast 10 times. Get a transmission shop to rebuild it, Most shops that can rebuild Dodge Charger/Challenger/Jeep etc can rebuild them as its the same unit.
If you want to replace with a later model, then best find a later year one and get the TCU and shifter assembly along with it too.