Quote:
| Originally Posted by simon varley Rich,
when you tighten the fitting the o-ring compresses into the shoulder and the force is transferred axially. As soon as the threads sheared off there was nothing for the o-ring to press against and the axial force was lost. That's why your mate could remove the stub by hand. |
Had exactly the same problem wiht a Cylinder Head stud in a old lancia I was restoring. Bu**er snapped well before the torque setting and the remains were in the cylinder block so could not get anything to grip on it. Phoned round some engineering firms for "Spark erasure" quotes and put off by the amount tried to tap it out with a shap punch (trying to turn it with each tap).
It came out as though it was fixed in butter - no problems at all!