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View Full Version : how much to lube throw out bearing?


nka203
06-17-2007, 06:11 PM
hey guys, a week ago i put in a new tranny, did everything ok, lubed the pilot and throw out bearing up and put em in. first few days were awesome, no grinds, noises, perfect. after a week, something would squeal quietly when i press the clutch pedal in, so i thought huh, maybe the TOB needed more lube? but since it was very quiet i left it alone. this morning when i started up my car with the clutch in it started grinding horribly so i let go and the noise disappears. now everytime i have the clutch pedal in the horrible grinding noise comes back 9/10 times. how much was i supposed to lube this thing up? its even hard to shift while its grinding but the clutch does disengage.

johngriff
06-17-2007, 06:14 PM
tob requires no lube.

Problems:
Defect TOB
Broken TOB guide
Backwards installed TOB
Wrong TOB for pressure plate (like using ka24 tob on act pressure plate)

Either way, drop the trans.

nka203
06-17-2007, 06:47 PM
oh ok thanks. which TOB do i need for ACT pressure plate?

fliprayzin240sx
06-17-2007, 07:23 PM
Get a Z32 TOB, thats what ACT uses. Lube only the inside of the carrier and be careful not to get grease on the clutch plates. Since your dropping the tranny, double check the clutch/flywheel and make sure you didnt get any grease on it. Also, what kinda clutch is it and did you break it in?

nka203
06-17-2007, 07:45 PM
its the ACT HDSS street clutch set with pressure plate. yea i have about 3000 miles on it. i think the TOB went out? is the z32 tob durable? i don't want to have to do this every few thousand miles.

johngriff
06-17-2007, 07:52 PM
the act is a pile of crap. Their pressure plate is not meant for an SR. More than likely it broke the guide for the tob.

fliprayzin240sx
06-17-2007, 08:14 PM
They sent me the wrong TOB, was told by people to just run the Z32 TOB so I did (i bought it locally since I didnt wanna wait for me to get my car up and running since its was my daily). I had it on my car for over 3 yrs and never had an issue. I has running a 6 puck unsprung extreme clutch.

nka203
06-17-2007, 08:30 PM
hm don't u have an SR? I have a KA, does it matter? would the z32 tob fit on the KA tranny too? gah i just finished jacking up my car.. T.T sucks ass.

johngriff
06-17-2007, 08:38 PM
OH.... its a ka. All of act's diaphrams are overly hardend. Drop the trans.

fliprayzin240sx
06-17-2007, 10:26 PM
hm don't u have an SR? I have a KA, does it matter? would the z32 tob fit on the KA tranny too? gah i just finished jacking up my car.. T.T sucks ass.

Same tranny, same tobs, same carriers, same thickness, just different bell housing. Dont see why it wouldnt work.

nka203
06-17-2007, 10:31 PM
alright thanks alot, im unbolting the bellhousing now.. guess ill see if a nissan dealership nearby has a z32 TOB.

johngriff
06-17-2007, 10:40 PM
IDK, the sr pressure plate from act is not sr, because it is maxima, and that is what is available inexpensively, so it would make sense for them to cheapen out on it. KA is KA, i think the KA tob is fine.

nka203
06-17-2007, 11:22 PM
alright i just dropped the tranny. there was a slight grinding residue on the pressure plate but it rubbed right off. it seems as if the outside of TOB i lubed was spinning on top of the pressure plate instead of sticking to it then spinning. all the TOB parts were in good cond. spins freely, guide is good cond, etc. now im confused if the horrible grinding noise is from the TOB or the tranny itself. the grinding noise is only present when the clutch pedal is pressed in, but when i try to shift into gears it grinds louder for a second then goes into gear, and all noise is gone as soon as i let the clutch out and drives smoothly until i press in the clutch pedal again. is it the TOB or the tranny? i need help..

johngriff
06-18-2007, 12:29 PM
What about the tube that the tob slides on? Where it meets at the trans? Is that cracked? The tob should spin over the pressure plate, grind a little, that is normal.

Take some pics of inside the trans w/good lighting, and good focus.

steve shadows
06-18-2007, 12:43 PM
you should use a little bearing grease on the pilot shaft, where the TOB slides on, so you do need SOME lube in that regard. dont overdo it and dont get it on the tob surface that faces the pp.

nka203
06-18-2007, 01:07 PM
got it, right now i have some lube on the tob surface and on the pp, clean those with brake cleaner? im taking some pics of the shaft as well.

nka203
06-18-2007, 01:21 PM
here are the pics, btw the retainer clip on the tob fork was completely out/weird wen i took it out, i bent it to the right shape and put it back in but i dont think thats the problem?? also i cleaned the tob surface and grinds on the pp before taking the pics.

http://i90.photobucket.com/albums/k266/nka203/TOB2.jpg
http://i90.photobucket.com/albums/k266/nka203/PP1.jpg
http://i90.photobucket.com/albums/k266/nka203/TOB1.jpg
http://i90.photobucket.com/albums/k266/nka203/SHAFT4.jpg
http://i90.photobucket.com/albums/k266/nka203/SHAFT3.jpg
http://i90.photobucket.com/albums/k266/nka203/SHAFT2.jpg
http://i90.photobucket.com/albums/k266/nka203/SHAFT1.jpg

nka203
06-18-2007, 01:22 PM
if everything seems right, is it the tranny problem?

johngriff
06-18-2007, 01:38 PM
I think the TOB might be facing backwards. ON the outer most face that contacts the pressure plate, does that spin freely of the tob guide?

Maybe im tripping on the pic.

nka203
06-18-2007, 01:46 PM
huh yea it spins nice and free.
could the retainer clip bouncing around in there cause it to grind so much?
heres another pic if that one trips u out.
and again thanks for ur help.
http://i90.photobucket.com/albums/k266/nka203/TOBB.jpg

johngriff
06-18-2007, 02:10 PM
yeah, i can see the bevel of the bearing and where it contacts now. Maybe it was that clip coming loose, and letting the bearing rattle loose against the pressure plate?? With that bad of a noise, I was expecting something horrid. While everything is out, might as well do the pilot bushing, just to be on the safe side.

steve shadows
06-18-2007, 02:13 PM
he has to remove the cltuch and pressure plate for that.

I dont think this is addressing the real issue here.

It looks like there is no lube at all on your pilot shaft. put a little bit on there.

If the clutch is in and your hearing noise its typicall the throw out bearing, if the clutch is out and your hearing noise is pilot bushing.

johngriff
06-18-2007, 02:14 PM
he has to remove the cltuch and pressure plate for that.

Yeah, obviously...

nka203
06-18-2007, 02:16 PM
thanks for the help guys, yea the clip that keeps the bearing on the fork does keep coming out, from the pics how does it look? the clip won't stay in there.
and also, judging from the symptoms, do u think it could be the tranny at all? the tranny has been running low on fluids but i topped it off and the problem stayed.

steve shadows
06-18-2007, 02:18 PM
thanks for the help guys, yea the clip that keeps the bearing on the fork does keep coming out, from the pics how does it look? the clip won't stay in there.

yeah this has been an issue on a couple cars lately.

get a new one. I think napa has them, of nissan dealership.

Im relplacing this part on every hi-perf clutch job from now on.

cheers

nka203
06-18-2007, 03:09 PM
hm okay, which way is that clip supposed to go in? like i can flip it and it'll fit too. can u see if in the picture it's in correctly?

steve shadows
06-18-2007, 03:12 PM
no, the way it is is the right way dont flip it, jsut get a new one if its lost its elasticity

nka203
06-18-2007, 06:20 PM
i have some lube smeared on the pp fingers, do i need to clean them before putting it back on? and also the tob surface?

fliprayzin240sx
06-18-2007, 06:30 PM
i have some lube smeared on the pp fingers, do i need to clean them before putting it back on? and also the tob surface?

Yes clean it, last thing you need is grease in there and make your clutch slip. Grease the pilotbearing, the inside of the TOB carrier, the shaft that the carrier sits on (not the input shaft itself). Replace the retaining clip, last thing you wanna do is reuse the fucked up and have the carrier slip off the fork, cuz then your dropping the tranny again to fix that shiet. While your at it, double check the pivot that the fork sits on, make sure its not bending or cracking and put grease on the pivot too.

nka203
06-18-2007, 07:08 PM
k great, i found the culprit lol.. it was the nismo pilot bearing i put in there last time i dropped the tranny. turns out it's shattered to pieces lol. i think when i hammered it in it cracked the roller part or something then the tranny shredded it into pieces. it looked fine when i put it in but oh well i guess not. im sticking with a stock pilot bearing.

johngriff
06-18-2007, 08:18 PM
Sweet, I rock.

nka203
06-18-2007, 08:22 PM
haha yea thanks for the help. now only if i can get the outer part of the bearing out.. its stuck in there so gona try and cut it out with a saw blade.

nka203
06-18-2007, 08:24 PM
do nissan dealerships usually have pilot bearings in stock?

johngriff
06-18-2007, 08:36 PM
Yes. Try a slide hammer for the bearing.

steve shadows
06-18-2007, 09:20 PM
Sweet, I rock.

hahahaha oh man sometimes i miss you

how the fuck did you shatter the fucking pilot bushing anyways? not easy to do

nka203
06-18-2007, 09:21 PM
i believed it got weakened/cracked when i put it in there with a hammer, wasn't very easy to put in even with lots of lube.
plus the roller bearing i used has many parts to it not just one big bronze thing like the stock one so its easy to come apart.

fliprayzin240sx
06-18-2007, 10:00 PM
Just get pilot bearing from kragens or autozone. KA, SR, VG, they all use the same pilot bearing. Grease it, put a socket on the bearing that fits and tap that in with a rubber mallet.