944 turbo rear hub/spindle failure

[barks944]

I was out for a spin this morning and lost all drive coming out of a right hand turning off a main road. One driveshaft spins when you bring the clutch up. The spindle spins too so it's not the cv joint. Car is a 87 non m030 which I fitted with an LSD gearbox. Look like the spindle sheared or hub teeth has sheared. Anyone had any similar experience? Can I fit m030 hubs/spindles?

 

[chrisg]

A couple of questions for you:

Is it definitely the spindle/ drive out through the rear bearing ?

Is there drive out of both sides of the gearbox ?

The fact that you've fitted an LSD gearbox to your car would indicate to me that perhaps something has gone amiss within the box.

If I remember correctly the rear axle parts for the Turbo's (S & standard) and S2 are all common, i.e. the spindles, bearings, rear aluminium trailing arms, rear calipers etc. The main difference is the width/ strength of the driveshafts and associated CV joints.

So my suggestion would be to get the car up in the air and check that there's drive coming out of both sides of the gearbox.

Yours

Chris

 

[barks944]

Hi Chris,

If you put the car in gear when stopped and bring the clutch up the drivers side drive shaft spins happily with the wheel staying still.

Tom

 

[chrisg]

Ahh sounds to me as if there's been a CV joint failure , would be very surprised if the spline drive that goes through the wheel bearing has failed.

 

[sulzeruk]

You will have ripped the pslines on a CV joint. the shafts are hardened so the joints will fail way before the shafts will. Make sure you have Turbo/S2 shafts rather than Lux ones, the heavier duty ones have much courser splines.
Alasdair

 

[barks944]

I really don't think its a CV joint, the spindle going into the wheel hub seems to be spinning. If either VC joint was failed surely either the drive shaft itself would not spin or the CV joint outer/drive spline on the wheel hub would not spin, but it does..

 

[George Elliott]

Tom,
The spline in the Hub is like - unbreakable, but if you say the Outer CV assembly is turning, then I'm going to say the wheel must also be turning....but you have clearly said not.....(the outer CV Outer body is difficult to see in the cast rear arm)

Is/are the Hub and Outer CV known compatible, or has the LSD Box install introduced newly matched components?

Or has the new ECU produced 1100lb/ft from 1500rpm to 9600rpm and that the cause....

Sorry to hear of this setback, good luck

George

 

[333pg333]

Tom, I'm not sure what part you guys term 'Spindle'. Which part in this pic do you think is broken? I had a somewhat similar thing happen to me where I went to do a U turn and the car just rolled to a stop and lost drive. Thought I'd somehow broken the gearbox but it turned out to be the bolts on the outer rh hub had backed out. Simple fix.

 

[barks944]

Panic over, checked again in the light of day and I had the same problem as Patrick! Thank **** for that.... More money to spend on track day goodies for march/april now then .

 

[333pg333]

Whew...[] Hopefully you weren't about 10 miles away from the track down a rather lonely and not often travelled road while intending to run a new motor in. Oh, and the track was about 2.5 hours away by car. 4 hours by tow truck. Got to know the driver rather well on a long and sad drive home. [&o]
Tom, you can get a locking system for those bolts. Or some people drill and wire them. The locking system looks simple and easy. Possibly widely available. Pretty sure I bought mine from 'Ideola' on Rennlist. Might be worth the cheap investment.

 

[944Turbo]

ORIGINAL: barks944

Panic over, checked again in the light of day and I had the same problem as Patrick! Thank **** for that.... More money to spend on track day goodies for march/april now then .

good news

 

[barks944]

ORIGINAL: 333pg333

Whew...[] Hopefully you weren't about 10 miles away from the track down a rather lonely and not often travelled road while intending to run a new motor in. Oh, and the track was about 2.5 hours away by car. 4 hours by tow truck. Got to know the driver rather well on a long and sad drive home. [&o]
Tom, you can get a locking system for those bolts. Or some people drill and wire them. The locking system looks simple and easy. Possibly widely available. Pretty sure I bought mine from 'Ideola' on Rennlist. Might be worth the cheap investment.

Yeah I'll take a look, I've got two track days planned in March and April so theres a lot of chance for some to break loose again. One of the bolts sheared off which is a bit annoying, shouldn't be too bad to remove though.