If you have a pilot bearing failure, does your transmission input shaft destroy the ecsentric shaft, or is it the other way around?

 

dont quote me on that, but I think that as long as the bearing's casing isnt destroyed, you shouldnt have any issue, or maybe only vibration on your input shaft of the tranny, which will be a bit hard on the tranny's bearings

I'm not an expert though....

 

hmm, i've seen a couple pilot bearings very destroyed recently. when changed everything seemd kosher, however there wasn't any overt scorring involved on the eshaft insides or the tranny input shaft. one thing to consider is that the pilot bearing casing sits stationary inside of the eshaft, so logically it would follow that if the area can still sufficiently hold the pilot bearing in place without deforming it, then it's ok.

 

well the pilot bearing is new so I figure we mangled it when we put it in. It has been in for like maybe 3,000 miles behind a solid mounted 200hp engine, driving a racingbeat 4 puck clutch and falken azenis tires. I have been nice to this transmission, but now when I let off the gas and coast in gear, it makes this wierd slipping noise, almost like a scratching noise. I would say something is getting machined in an impressice way. the lower the gear, the louder the noise.

 

didn't make any noise, ran fine, till last week.

 

do you put any grease on the pilot bearing when you installed it...... I didn't and it start making noise here and there.... then one I was driving home and input shaft was stuck to the e-shaft bearing destory itself.

This may not be your problem...but just a idea of a possible problem.

 

is it hard to put into gear, particularly 1st or reverse? and does the car creep forward when it is in first with the cluth pedal in? these are some signs of a very trashed pilot bearing.

 

good advice bingoboy, never heard that but I can see how that would work. No, no creep. first and reverse are just as awkard as ever in any 100,000 mile gear box.

 

The pilot bearing will only "activate" when you depress the clutch. The outer race turns with the e shaft, the inner race would be stationary along with the trans main shaft. If you let off the gas, and you say coast with the clutch out, it's not the pilot bearing. If you push the clutch in and there's noise, that same noise would be there when you depress the clutch pedal at idle if it were the pilot bearing.

 

well then I am gonna think it is either a bearing in the transmission or a loose mount or something else that is moving around.

 

You know.... maybe Rotaries are different... but pilot bearings and throwout bearings have GOT to be the same. I've done lot's and lots and lots of clutch jobs in my day, from cars to trucks, to tractor trailers, forklifts, minibikes, aircraft loading equipment, earth moving equip., you name it and I've probably had to clutch it. A Pilot bearing is the bearing that goes into the end of the crankshaft of an engine. Upon installing the transmission, once the input shaft of the transmission is "through" the clutch plate (not to be confused with the pressure plate) the pilot bearing is the next (and last) place the input shaft goes. It's job is to keep the input shaft "centered" , and by doing so keep the clutch disc centered within the pressure plate. Without this "centering, the clutch plate would have a natural tendency to warp..... and then break (I know this for a fact as I once did a Spitfire that had a removable plate between the engine and tranny that was just barely bent.... but bent enough to wipe out clutch discs within about 3 days of installing one). Only way you tell for sure if it's good or bad... yank out the tranny and look at it.... but they very seldom ever go bad. PS, if you have to get it out.... I used to fill em full of grease and take an old input shaft and pound it into it... the grease goes between the bearing and the crank and forces it out. Yotraj

 

I had a pilot bearing go bad on me last summer, it was as if i had no clutch at all. Even with the clutch disingaged the car would still pull if i gave it a little gas. Had to drive it like this for a couple KM till i got home.

Neither the E-shaft or input shaft were damaged.

Sounds like it neither the pilot or throwout bearing but rather a bearing in your transmission. My friends DD civic does the same thing. But spending money to fix that would mean less money for the Rex

 

I have tried this with wet newspaper and grease, it does not work. It may work on other cars, but a friend and I pounded till we were sore, and nothing came out. I think there is a ledge cast into the E-shaft that prevents this from working. I am just gonna drive it and if it breaks, curse the world and fix it again while saving money for a Corvette.