I think my clutch exploded, Edit...actually a rear axle split in half |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
I think my clutch exploded, Edit...actually a rear axle split in half |
era vulgaris |
Jul 29 2014, 04:35 PM
Post
#1
|
J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
So I was running up to the store to drop off some Red Box movies, and pulling away from a stop sign I heard a loud pop....then the car stopped moving. The engine was still running and idling fine, but when I put it into 1st again and tried to pull away, the car didn't move and I could hear a sound like rocks in a rock tumbler. I'm guessing clutch pieces rattling around the bell housing?
I tried just shifting through the gears while stopped and I could find every gear fine, so I'm hoping it's nothing internal to the trans. Luckily this happened just a few hundred yards from my house in my neighborhood so getting it back to my house was easy. I'm going to have it towed to a local aircooled shop. But does this sound like a clutch disc that shattered, or possibly something more serious? Of course this had to happen just after I sold my Karmann Ghia, so I have no other means of transport except to borrow my girlfriend's car! |
Old Yella |
Jul 29 2014, 04:42 PM
Post
#2
|
Old Yella Group: Members Posts: 158 Joined: 2-July 13 From: Canberra Australia Member No.: 16,086 Region Association: Southwest Region |
Check the cv joints first.
So I was running up to the store to drop off some Red Box movies, and pulling away from a stop sign I heard a loud pop....then the car stopped moving. The engine was still running and idling fine, but when I put it into 1st again and tried to pull away, the car didn't move and I could hear a sound like rocks in a rock tumbler. I'm guessing clutch pieces rattling around the bell housing? I tried just shifting through the gears while stopped and I could find every gear fine, so I'm hoping it's nothing internal to the trans. Luckily this happened just a few hundred yards from my house in my neighborhood so getting it back to my house was easy. I'm going to have it towed to a local aircooled shop. But does this sound like a clutch disc that shattered, or possibly something more serious? Of course this had to happen just after I sold my Karmann Ghia, so I have no other means of transport except to borrow my girlfriend's car! |
Dave_Darling |
Jul 29 2014, 04:44 PM
Post
#3
|
914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
CV joint broke, or (more likely) unbolted itself from either the transmission output flange or the hub.
--DD |
Cap'n Krusty |
Jul 29 2014, 04:44 PM
Post
#4
|
Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Right. If you can get it into all the gears with the engine running, you have a busted CV joint or the bolts have broken/fallen out.
The Cap'n |
dlee6204 |
Jul 29 2014, 04:48 PM
Post
#5
|
Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
|
era vulgaris |
Jul 29 2014, 04:56 PM
Post
#6
|
J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
Thanks guys, I'll check and see if that's the issue!
|
flippa |
Jul 29 2014, 05:29 PM
Post
#7
|
Advanced Member Group: Members Posts: 3,177 Joined: 7-May 07 From: Boston, MA Member No.: 7,720 Region Association: North East States |
|
era vulgaris |
Jul 29 2014, 05:48 PM
Post
#8
|
J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
Well, the CV joints might still be an issue...but sometimes the solution is staring you right in the face and you don't see it! Apparently I was too busy looking at the shift linkage and clutch cable, and somehow missed THIS!!! Only the passenger side axle snapped. Driver's side is still in one piece.
According to Scotty Boy, these were 930 CV's and 911 axles. Anyone care to confirm or deny that? Also, anyone know a good source for new axles and CV's? Attached thumbnail(s) |
JRust |
Jul 29 2014, 06:07 PM
Post
#9
|
914 Guru Group: Members Posts: 6,307 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest |
Those do look like the thicker 911 cv's. Not sure why they bothered with those for a stock motor. Guess that is what they got doing the 5-lug setup. Those axles are shorter which is why there is that patch piece which is what broke. I'd recommend getting a replacement from Sway Away. They can make the axle the right length in the thicker size you have. Plus they are very reasonable
|
JawjaPorsche |
Jul 29 2014, 06:15 PM
Post
#10
|
Advanced Member Group: Members Posts: 3,463 Joined: 23-July 11 From: Clayton, Georgia Member No.: 13,351 Region Association: South East States |
Contact Chris at Tangerine Racing for your new axle.
He is a good man to deal with. http://www.tangerineracing.com/transmission.htm Attached image(s) |
bdstone914 |
Jul 29 2014, 06:26 PM
Post
#11
|
bdstone914 Group: Members Posts: 4,536 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
You probably should pull the outer CV aand stub axle and make sure that both CV's are the same. I have a custom axle assemble that the PO used a 914 CV on one end and a 911 on the other with a tube tack welded to couple the two axle halves together. I am sure it will work as well as yours did.
|
era vulgaris |
Jul 30 2014, 12:17 PM
Post
#12
|
J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
Are the stub axles not interchangeable between 914 and 911?
So if, for example, I ordered that axle assembly pictured above from Tangerine, would I need to buy it with the stub axle? So this is my other axle, which doesn't have a weld like the one that broke. Does this also have 911 CV's? What are the visual clues to differentiate between 914 and 911 CV's and stub axles? Sorry for all the questions, this is new territory for me! Attached thumbnail(s) |
era vulgaris |
Jul 30 2014, 12:39 PM
Post
#13
|
J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
Also, it's been a while since I had the rear wheels off when I redid the brakes several months ago, but I'm pretty sure my rear rotors were stock four lugs that had been re-drilled for five lugs. I'm guessing this would indicate that my stub axles are 914 stubs, or?
I'll have to double check that when I get home. |
bdstone914 |
Jul 30 2014, 01:55 PM
Post
#14
|
bdstone914 Group: Members Posts: 4,536 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
Are the stub axles not interchangeable between 914 and 911? So if, for example, I ordered that axle assembly pictured above from Tangerine, would I need to buy it with the stub axle? So this is my other axle, which doesn't have a weld like the one that broke. Does this also have 911 CV's? What are the visual clues to differentiate between 914 and 911 CV's and stub axles? Sorry for all the questions, this is new territory for me! If you ordered a 914 axle with 914 CV's it will not fit. 911 and 914 hubs ,CV's, stub axles and axles have a different spline count. It looks like 911 CV's. 914 are 94 mm and 911 are are 108mm. The 911 CV's take a bolt with a 8mm allen head.. If you have 911 CV's the trans flanges are larger to match the CV. The 911 CV go on a bigger axle too. You probably have 911 parts. You can have drilled rotors that were put on 911 flanges. Probably have a 911 axle on the drivers side. The length is not ideal for a 914. |
bdstone914 |
Jul 30 2014, 01:59 PM
Post
#15
|
bdstone914 Group: Members Posts: 4,536 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
[You should also run the wires to the back up light switch on the trans above the axle and out of the way.
|
bdstone914 |
Jul 30 2014, 02:03 PM
Post
#16
|
bdstone914 Group: Members Posts: 4,536 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
Now that I look closer you have a spacer between the CV and trans output flange. Probably there to adapt to the different length 911 axle. No spacer on the passenger side.
And there is no clamp on the small end of the CV boot on the passenger side. Looks loose. Wonder if there is any grease in the CV's? |
Krieger |
Jul 30 2014, 02:28 PM
Post
#17
|
Advanced Member Group: Members Posts: 4,726 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None |
That is a custom POS axle. It looks like it was cut and then spaced to be longer with a tube welded on the ends.
|
Old Yella |
Jul 30 2014, 02:28 PM
Post
#18
|
Old Yella Group: Members Posts: 158 Joined: 2-July 13 From: Canberra Australia Member No.: 16,086 Region Association: Southwest Region |
Just get two new complete axles with cv's and throw all the other crap in the bin.
|
Andyrew |
Jul 30 2014, 03:13 PM
Post
#19
|
Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
|
ChrisFoley |
Jul 30 2014, 03:34 PM
Post
#20
|
I am Tangerine Racing Group: Members Posts: 7,934 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None |
The person who thought it was a good idea to weld a tube into the axle shaft needs his head examined.
A: any imbalance or runout will cause vibration and tear it apart quickly. B: those shafts are hardened material for a reason. A relatively thin mild steel tube as shown has less than 50% of the axle shaft strength. C: proper welding of alloy steel requires techniques the average home hobbyist isn't prepared for. |
Lo-Fi Version | Time is now: 7th June 2024 - 11:00 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |