Where the hose with the 90 degree fitting and the "fork piece" are attached is on the oil injector. By pulling the fork piece (retainer) you can remove the 90° fitting and hose. There are o-rings on the fittling and use a new #320107 ty-rap on the hose. If the hose has softened from oil and age, you should have enought to cut back about 1/2" and reclamp with the ty-rap for a leakproof seal. That shorter bit of hose should also remove the stress on the fitting allowing it to center in the injector body.