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Old 02-06-2010, 10:01 PM   #1
ProdriveDreams
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Default Loud whining noise after 6spd swap!!! Emergency!

So I just finished the swap from hell (sheared bolts in the chassis that won't come out, Stripped brake line, various other stupid hold ups). I did a '06 STi transmission, axles, hubs, brakes, suspension. ACT clutch, exedy lightweight flywheel, lots of kartboy and TIC bushings. I was so excited to pull it out of the garage finally, so I start the car, and this HORRENDOUSLY loud noise like a bad bearing or metal on metal contact starts immediately on start up. The car started up just fine instantly, but the noise was so loud I could'nt even hear my exhaust at all.

The car moves fine, and gears engage normally, clutch feels normal. Noise is constant with clutch engaged or disengaged. The only thing I can think of is that maybe a pulley is shot? or possibly the pilot bearing is jusk. The driveshaft rotated fairly easily with car in the air. Can't remember if it's engine speed related. Gonna try again tomorrow. To ****ing pissed, and afraid to make it worse.

If anyone has any similar experiences or tips to help isolate this I'd love to hear them.

Thanks in advance

Solved!!
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Last edited by ProdriveDreams; 02-09-2010 at 11:04 PM. Reason: solved the problem!
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Old 02-06-2010, 10:07 PM   #2
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I think the best thing is to take a deep breath...slow things down a bit and go over all your work one more time....

Try to get a better handle on the approximate area the noise is emanating from (if it seems ok to let it make that noise for a few more
seconds). Also definitely check if the noise is dependent on engine speed or road speed (if you are moving).

Are there any weird vibrations that accompany the noise?

How are your fluid levels? Double checked?
Bolts are all tight? Double checked?
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Old 02-06-2010, 10:28 PM   #3
ProdriveDreams
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also after a 1-2 seconds of this on the second try there was a very distinct high pitched belt slippage noise. When I drove the car into the garage 1.5 weeks ago everything was normal.
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Old 02-06-2010, 10:29 PM   #4
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after a long hot shower I was thinking all of these things. thanks for the fast response.

I've been working on this project basically non stop for the past 2 days so I think I need to step away for half a day and relax.
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Old 02-07-2010, 12:54 AM   #5
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if it made all this noise upon startup at a standstill in the garage then you can eliminate the drive train.
its gotta be from the clutch forward. clutch is still moving whether engaged or not.

i would go from the clutch to the flywheel - starter - and so forth.

its more than likely in or around the clutch.

whining gears should only be evident while the car is moving. you need to drive around a lot. stop and go type of driving. no need to really get any higher than first or second gear. let the car coast in and out of gear.
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Old 02-07-2010, 01:12 AM   #6
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Power steering pumps make a horrendous noise when run w/ no fluid or very low fluid levels .
Throw out bearing noises usually change pitch in sound when the clutch is engaged & disengaged .pilot bearings usually change noise w/ rpm increase or decrease .
Idler pulleys on the t belt usually don't make noise for too long before they either seize or explode
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Old 02-07-2010, 02:45 PM   #7
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well today I'm gonna try and do it again and try to isolate the noise. Power steering fluid level is normal. I don't think it's the throw out bearing as the noise didn't change while engaging the clutch, i believe it was engine speed related. I really suspect the pilot bearing, as it's the only thing new that makes any sense...

My only other thought was to remove transmission, then check for obvious problems. if nothing is obvious try starting car without transmission and see if noise persists
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Old 02-07-2010, 10:03 PM   #8
sense of nature
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If it's engine speed related, I'd pull the timing covers to eliminate any of the idler pulleys,if those check out ok, then I'd be pulling the motor & checking the pilot bearing
G/L
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Old 02-07-2010, 10:07 PM   #9
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That's why I mentioned to slow things down a bit, think it through....I've solved more crazy stuff in the shower than you'd ever believe.

Sometimes when you are pushing hard a good nights sleep and a long hot shower brings things back to perspective.
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Old 02-08-2010, 10:43 AM   #10
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can you put the friction disk in backwards on a 6 speed?
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Old 02-08-2010, 11:42 AM   #11
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I don't think so. Mine had a sticker on it that said flywheel side. and it didn't seem to fit the other way.
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Old 02-08-2010, 12:39 PM   #12
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I think you're correct about the pilot bearing, when I read the symptoms that was the first thing that popped in my head, either pilot bearing or throwout bearing. but the throwing bearing noise would change or go away if you engaged/disengaged the clutch.
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Old 02-08-2010, 01:57 PM   #13
ProdriveDreams
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o joy... perhaps I ****ed up when installing it. But it seemed pretty straight forward. O well. Car goes up on jackstands tonight after I verify the location of the noise.

Thanks for your help everyone.
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Old 02-08-2010, 06:42 PM   #14
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Quote:
Originally Posted by boogieboogz View Post
I think you're correct about the pilot bearing, when I read the symptoms that was the first thing that popped in my head, either pilot bearing or throwout bearing. but the throwing bearing noise would change or go away if you engaged/disengaged the clutch.

With the clutch out the pilot bearing doesnt do crap. Not the issue. No change in tone with clutch in\out prolly not release bearing. Since the noise doesnt stop when the clutch is in it must be engine related. Check to make sure nothing is rubbing the flywheel.
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Old 02-08-2010, 07:52 PM   #15
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check to make sure you didn't kink the sheetmetal cover on the bottom of the engine up into the starter teeth of the flywheel.
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Old 02-08-2010, 08:06 PM   #16
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^+1, that would be good news if that's all it was.
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Old 02-08-2010, 10:26 PM   #17
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Quote:
Originally Posted by oldskoolWRX View Post
check to make sure you didn't kink the sheetmetal cover on the bottom of the engine up into the starter teeth of the flywheel.
hah...I forgot about that thing. I don't even think I put that back on. is that bad? haha
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Old 02-08-2010, 11:34 PM   #18
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+1 I have done exactly this! Check it out.
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Old 02-09-2010, 01:53 PM   #19
ProdriveDreams
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I would love it if that were the case!!

How does one go about removing that anyways? it's bolted to the engine??

This seems like the most likely scenario, as i remember while trying to wriggle the transmission in thinking that it was so close to touching that piece. Also this just makes the most sense.

Last edited by ProdriveDreams; 02-09-2010 at 02:24 PM.
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Old 02-09-2010, 05:10 PM   #20
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Quote:
Originally Posted by oldskoolWRX View Post
check to make sure you didn't kink the sheetmetal cover on the bottom of the engine up into the starter teeth of the flywheel.
that is what i was guessing after your 1st post


let everyone know what the culprit is
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Old 02-09-2010, 05:30 PM   #21
ProdriveDreams
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I'll be sure to post back. I hate it when people don't finish the thread for future reference for others. Hoping it's just that sheetmetal will find out tonight.
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Old 02-09-2010, 05:51 PM   #22
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Quote:
Originally Posted by ProdriveDreams View Post
I hate it when people don't finish the thread for future reference for others.

tru dat
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Old 02-09-2010, 07:06 PM   #23
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yup i was gonna say the same thing.. after i did one of my trans swaps, the metale gaurd thing bent up and was hitting the flywheel. check ****
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Old 02-09-2010, 11:03 PM   #24
ProdriveDreams
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YUP! that was it! thank god I was sick yesterday, so I didn't get to rip the transmission out till i saw everyones posts today!! thanks for the tip guys, you saved me a whole lot of trouble!
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Old 02-09-2010, 11:18 PM   #25
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good stuff
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