A slide hammer has been fitted to an injector seized in a cylinder head, but will not pull it. What should be done?
A) drive injector downward into cylinder
B) heat injector with an oxy-acetylene torch
C) pull cylinder head, drive injector upward
D) drill and pull injector with a screw extractor

Question

Quizplus · Accepted Answer

Pulling the cylinder head and driving the injector upward is a safer and more controlled method to remove a seized injector without causing damage to the cylinder head or injector. Heating with an oxy-acetylene torch (B) can damage components, driving the injector downward (A) can cause further seizing or damage, and drilling (D) risks damaging the injector bore or the injector itself if not done with extreme care.

A Slide Hammer Has Been Fitted to an Injector Seized