broken drive shaft

[vapy]

hi all i been away for while comuter broke lol snaped driveshaft last nite bladdered away from traffic lights and big bang and stop first thought was gearbox oh no had look today wit mate ands onlt diveshaft good good ordered one from bell hill be here tuesday woo hoo

>> Edited by vapy on Friday 5th May 16:45

[Sharky500]

Can anyone translate???

[Podie]

His PC bust, so he's not posted for a while.

He gave it "johnny large potatoes" away from the lights, heard a bang, thought it was the 'box, but it's actually a snapped driveshaft.. but a new one has been ordered and due soon.

I think..

[GreenV8S]

Make sure they replace *both* half shafts not just the broken side.

(They fail due to metal fatigue, and both sides suffer similar stresses.)

[tvrbob]

Is halfshaft failure common? I like "johnny large potatoes" very much but I don't like "bang"

[GreenV8S]

I went through a few before I had the current uprated ones fitted, but no it isn't a particularly common failure.

[that daddy]

Green V8S just out of interest what ford are the modded ones off,are they aftermarket specials,dident know those d/shafts did this they seem relible enough on car they were sourced from(lot more power & torque i guess).Still not something i would like to encounter...........ouch.Good luck vapy with that part.

>> Edited by that daddy on Saturday 6th May 09:39

[GreenV8S]

The uprated ones were made for me by GKN. They're stronger, and also designed to avoid the circlip groove that causes the problems with the standard shaft. It is quite rare to hear of people breaking half shafts and I'm sure the standard ones are fine for 99.9% of the people, but they do fail from time to time.

[trackcar]

I've just supplied a pair of uprated driveshafts to a cerbera owner .. rare as Peter says to have them break but it happens from time to time.

[oggs]

Podie said:

His PC bust, so he's not posted for a while. He gave it "johnny large potatoes" away from the lights, heard a bang, thought it was the 'box, but it's actually a snapped driveshaft.. but a new one has been ordered and due soon. I think..

Podie PH translater

[shpub]

that daddy said:

Green V8S just out of interest what ford are the modded ones off,are they aftermarket specials,dident know those d/shafts did this they seem relible enough on car they were sourced from(lot more power & torque i guess).Still not something i would like to encounter...........ouch.Good luck vapy with that part. >> Edited by that daddy on Saturday 6th May 09:39

Bear in mind that Pete's V8S has smaller CVs as standard than the Griff/Chimaera/Cerbera so the V8S parts are not as strong as the ones on your car to start with. Havingh said that, it is rear for them to break. The CV joints usually die way before.

[That Daddy]

thanks for that info shpub..i was genuinely interested.i fault i had discovered another weakness on the chims until you replied.

>> Edited by That Daddy on Sunday 7th May 20:22

[gudge]

new translation: He gave it 'Johnny Large Potatoes' from the lights, then his flat cap fell in front of his eyes so he lobbed his pigeons and whippet out of the window to slow him down but they got caught in his driveshaft, 'and he painted matchstick men and matchstick cats and dogs [singalong!!!]

[trackcar]

shpub said:

that daddy said: Green V8S just out of interest what ford are the modded ones off,are they aftermarket specials,dident know those d/shafts did this they seem relible enough on car they were sourced from(lot more power & torque i guess).Still not something i would like to encounter...........ouch.Good luck vapy with that part. >> Edited by that daddy on Saturday 6th May 09:39 Bear in mind that Pete's V8S has smaller CVs as standard than the Griff/Chimaera/Cerbera so the V8S parts are not as strong as the ones on your car to start with. Havingh said that, it is rear for them to break. The CV joints usually die way before.

smaller in what way Steve? all the bolt circles are the same and the splines are the same also .. there *are* two types of CV joints but they're identical dimensionally.

[GreenV8S]

Just to clarify: the problem here is not with the CV joint, it is fatigue failure of the half shaft by the groove for the CV joint retaining circlip.

[gudge]

GreenV8S said:

Just to clarify: the problem here is not with the CV joint, it is fatigue failure of the half shaft by the groove for the CV joint retaining circlip.

Your missing the point, he just gave it 'Johnny Large Potatoes'!!!

[shpub]

By smaller I really did mean ratings. Both Granny and Sierra Cosworth CVs are the same size. One you can get for around £20-30 the other is around £100. Difference is in the ability to transmit power/torque. Look at the specs and the power ratings are very different. Some suppliers specifiy a difference, some don't. Definitely worth looking beyond the surface.

[GreenV8S]

Again, the problem in this case is half shaft failure not CV failure. I don't recall ever having to replace CVs on the V8S. To be fair the CV joints got replaced when the half shafts failed, but that was quite a rare occurence (2-3 time in 170K miles), in the S2 I was replacing CV joints annually.

I've never offered up the V8S and Chimaera half shafts side by side to see if they are actually identical, but they look the same to me.