How to Remove Harmonic Balancer from General Motors Engines
Experiencing a difficult time taking out the retainer bolt from the harmonic balancer to substitute seal or crank position sensor ? In numerous cases this bolt looks to be either affixed in or welded. Unnecessary to enounce, it is very tight. This is how you will be able to got it out.
- Do the common jacking and placing of automobile on jack stands operation (safety at the beginning).
- Remove the serpentine belt, right front wheel and forward splash guard. Notice a 15/16″ hex in center of harmonic balancer (it is metrical, but a 15/16″ socket will fit).
- To maintain the crankshaft from turning, construct a crankshaft retaining tool from some scraps at your disposition. This can constitute a piece of 1/4″X 3/4″ flat iron stock with holes drilled and tapped for 5/16″X 1-1/2″ bolts appropriately separated to fit in holes in the harmonic balancer.
- Impact wrench (1/2″ or preferably 3/4″) solely partially element in here. As well required is a good 18″ pipe wrench and approximately a 24″ box end wrench big enough to use as a pry bar over the handle of the pipe wrench.
1/2-Inch Heavy-Duty Air Impact Wrench
- While an subordinate below utilizes the impact wrench with a 15/16″ deep impact socket, at the same time from above enforce reverse pressure on the socket with the pipe wrench and box end wrench for leverage. You must push like crazy until you hear a crack, which is the bolt breaking loose.
- Reload pipe wrench and go at it once more repeatedly until the impact wrench will be able to handle removal by itself.