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Old 06-17-2010, 06:08 PM   #1
kpluiten
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Default The NASIOC Transmission & Driveline Carnage Thread ("Look what I broke!")

I realized the other night that I think it's interesting to see how various things fail. I find it somewhat educational and it satisfies a morbid curiosity I think we all have as car enthusiasts.

I decided to create a thread where we can post up pictures of various broken drivetrain parts with a little information about how the failure occurred. I'm certain there are a lot of interesting pictures and personal experiences we can contribute.

I'll start with these. Pretty weak, but it will kick things off.

This was a 2002 WRX with no first or second gear that came into my garage the other night for a transmission swap. The box sounded awful and this came out on the drain plug.





Let's see what you guys have.
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Old 06-17-2010, 08:16 PM   #2
lotarg
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2002 WRX Tranny

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Old 06-17-2010, 08:50 PM   #3
aaron04
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This is my kind of thread Ken!!!!

Stock WRX 3rd (after fp green and tune)

Went to PPG dogbox

Front Ring and Pinion Gear (clutchless shifting)
Case (when the R+P blew up)
Transfer gears (after going RWD)
5th gear and synchro hub (dunno)
Rear axles (2) (being rwd)
R160 (being rwd)
Center diff bearing (dunno)
Driveshaft carrer bearing (shoddy welding on the 1st welded diff)


uhh what do I win?
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Old 06-17-2010, 09:19 PM   #4
kpluiten
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Quote:
Originally Posted by aaron04 View Post
This is my kind of thread Ken!!!!

Stock WRX 3rd (after fp green and tune)

Went to PPG dogbox

Front Ring and Pinion Gear (clutchless shifting)
Case (when the R+P blew up)
Transfer gears (after going RWD)
5th gear and synchro hub (dunno)
Rear axles (2) (being rwd)
R160 (being rwd)
Center diff bearing (dunno)
Driveshaft carrer bearing (shoddy welding on the 1st welded diff)


uhh what do I win?
Nothing until we get pictures!
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Old 06-17-2010, 09:24 PM   #5
aaron04
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Well sorry, kinda tough to get them in Iraq
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Old 06-18-2010, 11:45 AM   #6
xcdhridr
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Just the bits from the drain plug. Other bits had lodged themselves in elsewhere so I couldn't shift to neutral (or any gear)

2nd gear. I'll post a pic of the gear and main this eve.
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Old 06-18-2010, 11:49 AM   #7
kpluiten
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Quote:
Originally Posted by aaron04 View Post
Well sorry, kinda tough to get them in Iraq
^^^ King of carnage right there.

We'll wait until you get back. Stay safe dude.
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Old 06-18-2010, 12:04 PM   #8
03SubyWRX
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Quote:
Originally Posted by xcdhridr View Post


Just the bits from the drain plug. Other bits had lodged themselves in elsewhere so I couldn't shift to neutral (or any gear)

2nd gear. I'll post a pic of the gear and main this eve.
Epic win.
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Old 06-18-2010, 01:29 PM   #9
rexman2002
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I had a picture of rear differ plug with quite a few big chunks on the magnet. I lost a tooth too on the differ. The rear differ has been since replaced.
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Old 06-19-2010, 07:45 PM   #10
Splinter
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The boot was not torn, and it was still packed with grease.

05 STI running gear in a 98 RS with 275/40R17 tires

Subarus aren't designed for drag racing.
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Old 06-21-2010, 01:48 PM   #11
Storm
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Here's a start.... more to come.
Broken 1-2 shift fork. Binary codriver with no "feel" for things mechanical.....


Broken drive hub.....285-30-18 race tires on 10.5" wheels will do this I suppose....


Jay

Last edited by Storm; 06-21-2010 at 01:54 PM.
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Old 06-21-2010, 02:30 PM   #12
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Quote:
Originally Posted by Storm View Post
Here's a start.... more to come.
Broken 1-2 shift fork. Binary codriver with no "feel" for things mechanical.....


Jay
Same thing happend to me, while the car was stock!

I'll post a picture of my busted shift fork, which I kept as a reminder of what not to do with 5 speed.
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Old 06-21-2010, 02:39 PM   #13
rexman2002
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power shifting/grinding into 2nd hard, on a stock 5 speed ftl.
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Old 06-21-2010, 03:33 PM   #14
Storm
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Damn, I thought you took my picture and blew it up!

Guess the weak spot is known, eh?

Jay
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Old 06-22-2010, 01:34 AM   #15
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I have a feeling Karen's shift fork now looks the same

Jay, you talking bout the 285 10.5 rims I currently own
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Old 06-23-2010, 10:03 PM   #16
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Yup went to change my tranny fluid today and...found out what my first gear syncro looks like...when its in a whole bunch of pieces...



All my gears still seem strong but the syncro is definitely gone in first. I basically have to stop to shift into first now. Looks like I get a tranny rebuild in the near future.
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Old 06-23-2010, 10:06 PM   #17
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That doesn't look like synchro material to me...
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Old 06-24-2010, 12:28 AM   #18
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There is some oil from my rag on there but up close they look like "chips" or "shavings" rather than "chunks". I figured if I was bashing up the gears the pieces could be more chunky. When I'm in gear its solid with no whining or anything. The only problem is when I downshift from 2nd to 1st which is why I thought it was a syncro. However, I admittedly don't know anything about how transmissions work when they are um...not working .
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Old 06-24-2010, 01:54 AM   #19
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Synchro material is usually gold coloured, I believe its made of brass
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Old 06-24-2010, 03:18 PM   #20
Storm
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Quote:
Originally Posted by xcdhridr View Post
I have a feeling Karen's shift fork now looks the same

Jay, you talking bout the 285 10.5 rims I currently own
Yes.

Jay
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Old 06-24-2010, 06:51 PM   #21
theSlothy1
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07 WRX 5spd, after 33k, 3rd gear decided to strip, locking the tranny up solid.



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Old 06-24-2010, 10:33 PM   #22
Storm
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^^^ That's 2nd gear up there....the straight cut gear is reverse. I know.....what difference does that make, when the box is forked? Just pointing it out if you decide to order parts to fix it.

Jay
Needs to get the pic of his broken center diff off his phone.....
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Old 06-25-2010, 06:17 AM   #23
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Found this today




And here is from the transmission i bought right before mine broke (was supposed to rebuild that one and sell mine..but 5 days later i broke 2 teeth on 2nd) so i cannot take credit for this assplosion...but thought it should be posted here anyway.




And don't know if you can it here, but this is a broken syncro


Last edited by scoobdude; 06-25-2010 at 06:22 AM.
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Old 06-25-2010, 06:20 AM   #24
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Quote:
Originally Posted by golden_boy View Post
There is some oil from my rag on there but up close they look like "chips" or "shavings" rather than "chunks". I figured if I was bashing up the gears the pieces could be more chunky. When I'm in gear its solid with no whining or anything. The only problem is when I downshift from 2nd to 1st which is why I thought it was a syncro. However, I admittedly don't know anything about how transmissions work when they are um...not working .

You can see some brass flakes in the background here:
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Old 06-25-2010, 01:41 PM   #25
ej20ajk
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Smile

Center diff failed, due to low tire pressure in the front wheels for extended time (15psi vs 30psi) and about 5k km.



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