348 GTB The rubber boot on the wheel side needs replacement after only 3000km :-( Trying to loosen the center wheel bolt (hub nut, 209184) holding the drive shaft I am using a 50cm long tool and putting all my weight on it (only 75kg) No luck so far I am hesitating to apply heat because that may ruine the expensive bearing Any suggestions??
hello fdekeu, The hub nut is a lock nut, try to get rid of the locking first. Do not stand on the bar, but try to pull it,with this you get 2-3x more force and torque and its also much safer. If possible, use a longer extension. (With your 75kg x 0.5m = 375Nm, you are not too far off getting it free, since theoretically its torqued down with 250Nm). Alternatively, use an impact gun, this will work for sure. For reassembling, use a brand new lock nut (the old locking will have lost its locking function) and tighten it to 250Nm with a torque wrench. Best regards
I used my jack to push the wrench up, must have been a lot more than 300-400Nm Still had to apply some heat (around 60°C, I could still touch it) Will buy a new nut Thanks for the good advice
