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> I think my clutch exploded, Edit...actually a rear axle split in half
era vulgaris
post Jul 29 2014, 04:35 PM
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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!
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Old Yella
post Jul 29 2014, 04:42 PM
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Check the cv joints first.


QUOTE(era vulgaris @ Jul 29 2014, 03:35 PM) *

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!
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Dave_Darling
post Jul 29 2014, 04:44 PM
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CV joint broke, or (more likely) unbolted itself from either the transmission output flange or the hub.

--DD
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Cap'n Krusty
post Jul 29 2014, 04:44 PM
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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
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dlee6204
post Jul 29 2014, 04:48 PM
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era vulgaris
post Jul 29 2014, 04:56 PM
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Thanks guys, I'll check and see if that's the issue!
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flippa
post Jul 29 2014, 05:29 PM
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Been there, done that.
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era vulgaris
post Jul 29 2014, 05:48 PM
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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?


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JRust
post Jul 29 2014, 06:07 PM
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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
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JawjaPorsche
post Jul 29 2014, 06:15 PM
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Contact Chris at Tangerine Racing for your new axle.

He is a good man to deal with.

http://www.tangerineracing.com/transmission.htm


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bdstone914
post Jul 29 2014, 06:26 PM
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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.
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era vulgaris
post Jul 30 2014, 12:17 PM
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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!



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era vulgaris
post Jul 30 2014, 12:39 PM
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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.
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bdstone914
post Jul 30 2014, 01:55 PM
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QUOTE(era vulgaris @ Jul 30 2014, 11:17 AM) *

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.
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bdstone914
post Jul 30 2014, 01:59 PM
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[You should also run the wires to the back up light switch on the trans above the axle and out of the way.
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bdstone914
post Jul 30 2014, 02:03 PM
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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?
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Krieger
post Jul 30 2014, 02:28 PM
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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.
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Old Yella
post Jul 30 2014, 02:28 PM
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Just get two new complete axles with cv's and throw all the other crap in the bin.
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Andyrew
post Jul 30 2014, 03:13 PM
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QUOTE(Krieger @ Jul 30 2014, 01:28 PM) *

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.

^This.

You typically dont see the axles ripping in half. The CV joints break much quicker than the actual axles failing.
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ChrisFoley
post Jul 30 2014, 03:34 PM
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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.
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