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Input shaft bearing???

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Old 01-06-2008, 02:54 AM
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Originally Posted by tskeltonPGA
SWOOPE...def not a squeel...raw metal on metal spinning sound...like i said...can be heard from a good 100 yards away...oh yea...def. nice and quite when you push the clutch in...only noise when clutch is out

that's what i got goin on
Old 01-06-2008, 02:55 AM
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let me see if my memory is clear swoope k? have patience before i really need to dig up the service manual.

motor-flywheel-friction disc/pressureplate/throw out bearing/clutch fork---input shaft/trans.

and in that order.

am i missin something?
Old 01-06-2008, 02:57 AM
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Originally Posted by tskeltonPGA
SWOOPE...def not a squeel...raw metal on metal spinning sound...like i said...can be heard from a good 100 yards away...oh yea...def. nice and quite when you push the clutch in...only noise when clutch is out
give the ppf info i have given you .. if the clutch was good when it came out that is kinda a sign right there.. the clutch was not the problem. clutches do not squeel. they chatter or vibrate..

my best guess is pilot bearing made worse by misaligned ppf... or you could also have a failing clutch pedal that is putting just a bit of pressure on the to bearing..

right now all one can do is try to point you in the right direction.. i hope the online manual helps..


beers
Old 01-06-2008, 02:58 AM
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Originally Posted by TrochoidMagic
let me see if my memory is clear swoope k? have patience before i really need to dig up the service manual.

motor-flywheel-friction disc/pressureplate/throw out bearing/clutch fork---input shaft/trans.

and in that order.

am i missin something?
yes the pilot bearing, and how the clutch adjusts..

beers
Old 01-06-2008, 03:01 AM
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swoope...how could my ppf just suddenly have become misaligned tho? it was aligned properly for 69,000 miles and at 69,054 decided to become misaligned? no it def. was NOT the clutch...the clutch was not messed up at all..i thought all along that the clutch felt fine...hell the tranny feels fine changing gears driving the car...its just a noise...a very loud metal on metal grinding/spinning noise...thats what has me leaning towards a bearing...but still not sure obviously...trying to go over the manual right now
Old 01-06-2008, 03:05 AM
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ok tskel, and swoope...sorry if i'm being a dick.

i know what it is. and i know the symptom. and just have patience, let me bust out the service manual. i can state the clearances and specs... though whoever did the repair is probably a dumb-*** and don't know how to use the service manual or have the proper tool to measure the clearances. so here it comes.

and to answer the earlier q's, no. a clutch can be fine and throw-out bearing go bad. for example...do you ride your clutch? do you step on it even if not goin anywhere?

see, you can step on the clutch all day and not use the friction disc once... that'll kill the bearing for sure. does that answer the question good enough?
Old 01-06-2008, 03:06 AM
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Originally Posted by tskeltonPGA
swoope...how could my ppf just suddenly have become misaligned tho? it was aligned properly for 69,000 miles and at 69,054 decided to become misaligned? no it def. was NOT the clutch...the clutch was not messed up at all..i thought all along that the clutch felt fine...hell the tranny feels fine changing gears driving the car...its just a noise...a very loud metal on metal grinding/spinning noise...thats what has me leaning towards a bearing...but still not sure obviously...trying to go over the manual right now
they took the trans out to replace the clutch? if they did not do what is in what i linked, well there you go...

and it is common for people not to replace the pilot bearing as it take a special tool to get it out, and it is a bit of a bitch..

so the noise was there before and after? correct. the clutch looks fine. what does that tell you..

btw, a very long shot...

http://www.finishlineperformance.com...4-06-1641a.pdf

hey. but what do i know..


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Old 01-06-2008, 03:10 AM
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Originally Posted by swoope
they took the trans out to replace the clutch? if they did not do what is in what i linked, well there you go...

and it is common for people not to replace the pilot bearing as it take a special tool to get it out, and it is a bit of a bitch..

so the noise was there before and after? correct. the clutch looks fine. what does that tell you..

btw, a very long shot...

http://www.finishlineperformance.com...4-06-1641a.pdf

hey. but what do i know..


beers
ok be patient w. me...not very knowledgeable when it comes to transmissions...

the noise was there before and after...that is correct...the clutch looks good...that is correct...i don't know what that tells me tho swoope...im still trying to sort through the manual
Old 01-06-2008, 03:10 AM
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Originally Posted by TrochoidMagic
ok tskel, and swoope...sorry if i'm being a dick.

i know what it is. and i know the symptom. and just have patience, let me bust out the service manual. i can state the clearances and specs... though whoever did the repair is probably a dumb-*** and don't know how to use the service manual or have the proper tool to measure the clearances. so here it comes.

and to answer the earlier q's, no. a clutch can be fine and throw-out bearing go bad. for example...do you ride your clutch? do you step on it even if not goin anywhere?

see, you can step on the clutch all day and not use the friction disc once... that'll kill the bearing for sure. does that answer the question good enough?
you miss the point there is nothing to clearance. it is self adjusting...

did you read the part where the throw out bearing when it fails makes noise when the clutch is depressed???

the throw out bearing is not in use when the clutch is out..

i do have one note on the exception on that in my posts..

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Old 01-06-2008, 03:16 AM
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ok so this is important right here...

basically...those looking at this thread have said NOTHING about it actually being the tranny correct??? this is extreemly important right now!!!
Old 01-06-2008, 03:20 AM
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Originally Posted by swoope
yes the pilot bearing, and how the clutch adjusts..

beers
ok. pilot bearing is on the friction disc side. mazda decided to mess with me and call this the clutch release collar...

so its that...

as for the clutch adjustment... look up anything with clearances on clutch slave cylinder and you'll sure come up with something. being its a hydraulic unit, it can have too large of a gap leading to too much free play. or too close, and binding...like always riding on the clutch pedal, never fully disengaging the disc and partly slipping...early disc failure.
Old 01-06-2008, 03:25 AM
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Originally Posted by TrochoidMagic
ok. pilot bearing is on the friction disc side. mazda decided to mess with me and call this the clutch release collar...

so its that...

as for the clutch adjustment... look up anything with clearances on clutch slave cylinder and you'll sure come up with something. being its a hydraulic unit, it can have too large of a gap leading to too much free play. or too close, and binding...like always riding on the clutch pedal, never fully disengaging the disc and partly slipping...early disc failure.

the pilot bearing and clutch release collar are not the same...i'm looking at the diagram right now

the pilot bearing is between the flywheel and the clutch disc while the clutch release colar is on the transmission side of the clutch cover..

it goes
flywheel--pilot bearing--clutch disc--clutch cover--clutch release colar
Old 01-06-2008, 03:29 AM
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ok so can someone do this for me...

when the clutch pedal is OUT/NOT PRESSED IN...what all is SPINNING

i know stupid question...but please can someone give me details as to what exactly is spinning...only reason i ask is because it is the sound of something metal rubbing on something metal while its spinning...just trying to get a list of things..what i have right now is

pilot bearing and clutch colar...anything else?
Old 01-06-2008, 03:29 AM
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Originally Posted by tskeltonPGA
the pilot bearing and clutch release collar are not the same...i'm looking at the diagram right now

the pilot bearing is between the flywheel and the clutch disc while the clutch release colar is on the transmission side of the clutch cover..

it goes
flywheel--pilot bearing--clutch disc--clutch cover--clutch release colar
the pilot bearing is what is in the motor. it is what the nose of the input shaft rides in...

not sure what mazda calls it..

wow, trying to help is hard!!!!!

beers
Old 01-06-2008, 03:31 AM
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ha no **** man!!!! thats for all of it tho guys! the clutch release collar is the same thing as a throw-out bearing or release bearing right...just trying to clarify
Old 01-06-2008, 03:32 AM
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Originally Posted by tskeltonPGA
ok so can someone do this for me...

when the clutch pedal is OUT/NOT PRESSED IN...what all is SPINNING

i know stupid question...but please can someone give me details as to what exactly is spinning...only reason i ask is because it is the sound of something metal rubbing on something metal while its spinning...just trying to get a list of things..what i have right now is

pilot bearing and clutch colar...anything else?
clutch, clutch disk, input shaft. flywheel, engine. ah i see where you are going with this...

beers
Old 01-06-2008, 03:35 AM
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well i know its not the clutch and not the clutch disc and not the engine and not the input shaft...does the collar release bearing spin when the clutch pedal is out? or is the pilot bearing the only one that spins? or does it even ******* spin
Old 01-06-2008, 03:50 AM
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Originally Posted by tskeltonPGA
the pilot bearing and clutch release collar are not the same...i'm looking at the diagram right now

the pilot bearing is between the flywheel and the clutch disc while the clutch release colar is on the transmission side of the clutch cover..

it goes
flywheel--pilot bearing--clutch disc--clutch cover--clutch release colar
thats what i clarified if i accidently confused of the name. but regardless, its "clutch release collar" (throw out) or what not.

but here's the catch: the system can be in proper installtion order. but was the system bled?

do that. and after the clutch slave (clutch release cylinder) is bled, check other adjustments... if you're looking up the manual, go to clutch pedal adjustment, pedal stroke inspection/adjustment. pg 5-10-4.
and pedal play... and this is where i mean adjustments.

if measuring pedal play (5-15mm) and if measuring pedal push-rod play.. and you should come up with 0.1mm-0.5mm.
Old 01-06-2008, 03:59 AM
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Originally Posted by tskeltonPGA
well i know its not the clutch and not the clutch disc and not the engine and not the input shaft...does the collar release bearing spin when the clutch pedal is out? or is the pilot bearing the only one that spins? or does it even ******* spin
they both do. and always in constant contact of something. one (like swoope clarified) rests on/in the friction disc, and the other (clutch release collar) rests and controlled by the fork.

clutch release collar inspection 5-10-15. i can pretty much guarantee that something there is outta order.
Old 01-06-2008, 04:02 AM
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o btw, here with only 5k miles. after noticing someone with an 06 and around 20~k miles, i noticed the collar noise. mine just started to have very slight noise, but gone only when pedal is depressed.

so like i said, this symptom i know for sure...and it must seemingly be a design flaw.
Old 01-06-2008, 04:09 AM
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Originally Posted by TrochoidMagic
o btw, here with only 5k miles. after noticing someone with an 06 and around 20~k miles, i noticed the collar noise. mine just started to have very slight noise, but gone only when pedal is depressed.

so like i said, this symptom i know for sure...and it must seemingly be a design flaw.
that is the gear rollover. it is normal... you have to understand that the transmission is about 24" away from you ears..

it is the input shaft spinning in the trans... if you can sit in another rx8 you will hear the same thing.. it sounds worse if you are sitting in a garage..

as for a design flaw, you decide. it is what it is..

beers
Old 01-06-2008, 04:18 AM
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tom,

here is the photo.. it is not charles, but the same issue...

https://www.rx8club.com/showpost.php...&postcount=162

btw, after the talk. cant wait to see how this plays out.. wack.

beers
Old 01-06-2008, 04:24 AM
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good find swoope. you seem to know where the answers to problems are posted on here.

good luck helping him, i hope you got him what he needs.

as for me...i can live with it. it barely started as i put more miles on, but is very slight. i can live with it... it ain't getting noisier and i'm still under warranty.
Old 01-06-2008, 04:28 AM
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Originally Posted by TrochoidMagic
good find swoope. you seem to know where the answers to problems are posted on here.

good luck helping him, i hope you got him what he needs.

as for me...i can live with it. it barely started as i put more miles on, but is very slight. i can live with it... it ain't getting noisier and i'm still under warranty.

i hope i did to, but the issue here is out there a bit.. wack..

find someone in your area and compare, it will ease you mind...


beers
Old 01-06-2008, 06:50 AM
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no **** its out there a bit...i swear this has to be simpler than we are making it out to be...


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