Technical Multipla DriveShafts

[boutineau]

Hi All

Two week ago i changed both front suspension arms due to one of them failing its MOT on bush deterioration. Bit of a job doing it on your back but managed all looked fine. Then at the weekend i jacked up the nearside to do a oil change. After this i started to hear a noise when pulling away best described as a knock/creak. Then today on pulling away the near side / Passenger side drive shaft sheared the bolts connecting it to the gearbox. Looks like the gearbox has not been damaged / no hole in the casing. Any one any ideas why the driveshaft may have failed as i dont want to repair the shaft and have the same issue.

Many thanks

Andrew.

 

[JTDman]

Sounds like you have pulled the inner cv joint apart when you did the wishbone replacement, you say its sheared the bolts ? do you mean the ring of bolts on the inner cv?

 

[boutineau]

Hi

It has doen the bolts that connect it to the gearbox. it has also done damage to the gold cap. if this helps.

Andrew.

 

[boutineau]

Re: Multipla DriveShafts Update

It has damaged / Ripped out / sheared the Allen bolts that connect it to the Cup that then connects to the gearbox using what looks like 4 x 15 mil bolts . It has also done damage to the gold cap that clips onto the shaft that holds the grease in place. I have managed to drill and tap out the 3 sheered bolts from the cup and clean up the other three threads. I have managed to put the shaft back into place and the gold cup I bent back into shape adding some more CV grease. I have used 6 new bolts and also used lock nut just in case I was just unlucky and the work I did just aggravated an existing condition. BUT I still have the Creak when pulling away in first gear and sometimes a knock. If is almost as though something is flexing.

:bang:

 

[MultiPa]

Re: Multipla DriveShafts Update

Mine has done exactly as you describe - except the cup is unuseable now.

Do you know what size the bolts are and if they are available separtely?

And is the 'cup' item 7 on here - and does it being listed as it's own item mean it is availale to buy as a single part? http://tinyurl.com/2u2chs7

Also, have you had any more problems?

Cheers.

 

[simo817]

i know it's to late , but fiat always use new bolts on driveshafts and seal cover's.. ( oil seal and tow bolts for cover about £6 )

 

[boutineau]

Hi All

Just a quick update the noise that was left after i had fixed the drive shaft was due to one of the wish bones bolts shredding the threads. I replaced the wish bone with a new one and the no noise since. The multipla has now well over the one hundred thousand miles on the clock.

 

[MultiPa]

Mine was still under the 3 months guarantee I got with it as it turned out, so they collected it and fixed it.

I'd had a look myself but as some of the bolts had sheared it was beyond my abilities to fix it.

Came back good as new, but did it again two weeks later - turned out they'd used cheap aluminium bolts to put it back together and they'd all given up the fight.

I bought the proper bolts off Fiat and it's been fine for 8,000 miles or so now.