Throw Out Bearings

[cordes]

I replaced the TOB in the minivan yesterday and it sounded nice and quiet on startup. However, after a drive around town, it's rattling about just like the old one. I can understand that the old one was rattling, as it broke and I tried to safety wire it in place on the fork. That worked for a time, but eventually the wire gave way and the rattling began anew.

This is the first time I've had this problem, but it's also one of only two throw out bearings I've used with the wire which sits under the smallest of lips to keep it in place. I'm 99% sure the bearing didn't come off the fork or anything during the actual installation, so I don't see why it would be so noisy. Has anyone had a clutch arm which allows the unit to rattle around or some such? This sounds almost exactly like the last one did, and stops when I depress the clutch, just like the last one did.

I don't really want to pull this trans again, but if anyone has a link to a TOB with the older style tangs which are riveted in place, that may be an option at this point. To say I'm highly frustrated with this is an understatement.

ETA: It's a large spline trans, and I ordered up the Timken one from Rockauto, but what arrived isn't the style they show. It's the same stupid wire design as the rest of them.

ETA II: This seems like entirely too much to spend on a throw out bearing. Surely, there must be something out there like this for less?
https://www.amazon.com/Centerforce-N...+Dodge+Daytona

[BadAssPerformance]

How many miles on the trans? The aluminum shout part of the input shaft seal retainer that the TOB slides on worn? is the clutch cable loose or tight causing the TOB to grind into the pressure plate?

not sure if the strap or wire retainers make much difference for TOB rattles

guessing FWDP or TU may have some old style TOB?

[cordes]

The trans was rebuilt last summer I believe. The sleeve for the snout was fine. I'm going to measure where the clutch arm is relative to the shelf for the cable the next time I get a chance. It looks like it rides about where it should when the clutch pedal is not depressed. I looked at the trans that came out of the van today and I couldn't get it to toss the bearing off of the snout no matter how far or hard I flipped the lever up within reason.

Maybe I'll see if someone has one lying about, but today's experience with the old one makes me think there is no reason it should be ripping them free like this.

[135sohc]

Does the riveted style TOB fit on the 523 style transmissions ? I thought it would hit the part of the casting where the intermediate/pinion shaft bearing is ?

[cordes]

Does the riveted style TOB fit on the 523 style transmissions ? I thought it would hit the part of the casting where the intermediate/pinion shaft bearing is ?

It may not. I thought there were some of that style available for the later transmissions but that could have just been a wrong picture problem on the parts sites. Frankly, I thought that's what I was getting when I ordered up the Timken unit to install recently. That only stayed on until I shifted 5 or 10 times.

Maybe the next time I'll use the fork from the trans which was in the van. This trans came out of a shadow.

[spiro440]

I've tried multiple TOB and they all made that ratt
ling noise. Drives me nuts!!

[GLHS60]

I just have to ask if you guys are talking about the rattle with the trans. in neutral and foot off the clutch??

Thanks
Randy

PS: Hi Spiro !!

[cordes]

Yes, this rattles to beat the band because it's just riding on the shaft and not being held in place. It stops making noise with the clutch depressed. I could see where the clutch fork was slightly beaten up by the process with the last bearing, and the bearing itself was sad looking.

[GLHS60]

In my experience this is what is referred to as synchro rattle.

If so, and gently pressing the clutch pedal stops the rattle, it's not a T/O bearing issue,

I've solved many with a trans fluid change and increasing the viscosity if it's too thin.

Thanks
Randy

[cordes]

I'll have to take a video the next time I have the van fired up and it's really loud. It's definitely the TOB knocking on the fork. There could be other noises assisting, but it's the exact same sound as the last one which was clearly damaged from spinning about with nothing to restrict it. There could certainly be other noises assisting this, but I will say that it was as quiet as can be while running in the driveway for a time before I took it out on the town. A few shifts and we were back to square one.

[GLHS60]

I believe you, it's just that this is something I haven't experienced.

This, and the fact I haven't been to Europe, are two off the top of my head!!

Thanks
Randy

[cordes]

Glad the list is relatively short, Randy!

[GLHS60]

LOL !!

There's a few more but I wanted to keep it clean and simple!!

Thanks
Randy

[cordes]

If the weather holds up I'll install the new bearing with the minivan clutch arm tomorrow. I'm holding out hope for this style of Timken bearing.

[cordes]

Well, I set a new personal record for having a trans and clutch out and in. Oddly enough the TOB was in place and seemed to be functioning normally. Upon further inspection of the clutch area I saw that the little button which comes with the installation tool to presumably center it was all wobbly between the clutch disk and crank. And by wobbly, I mean there was a crazy amount of movement in there.

Now, perhaps that was only because it can fall back out toward the disk with the input shaft not in place, but it was clearly worn from the input shaft, so I guess it could have been floating around and making a noise.

I also noticed when pulling the clutch cable off that it was keeping the TOB very, very close to the pressure plate, if not causing it to ride on the plate itself. I'll be double checking the adjustment before I put it back on the road, as that could be part of it I suppose.

Either way, something must be causing this hellacious noise which completely goes away when the clutch is depressed. I'm pretty sure it's not an internal problem in the trans, or engine, as they would have eaten themselves by now if it was.

Hopefully I have a final update on this in a day or two.