Can a damaged harmonic balancer be repaired on a 350?
How to repair a crankshaft on a 350 or SBC with a damaged woodruff key slot and replace the harmonic balancer. The other option is to replace the crankshaft and spend some serious dollars. Category Autos & Vehicles Show moreShow less Loading… AutoplayWhen autoplay is enabled, a suggested video will automatically play next. Up next
Can you drill a bolt out of a crankshaft?
If you have room to get a drill on the bolt, get some reverse twist bits and drill it out. The reverse spin sometimes will drive the bolt out. It surely is not pewter. I replaced my mom’s timing belt and cannot picture any bolt like the one you describe on that car, and I didn’t need any special tool for the harmonic balancer.
What kind of bolt is in a crankshaft?
” And, to make things worse, it turns out the bolt is made of pewter and is about 3-4 inches in the crank.” If you have room to get a drill on the bolt, get some reverse twist bits and drill it out. The reverse spin sometimes will drive the bolt out. It surely is not pewter.
Where does the thread start in a crankshaft?
Now, this bolt had threads at the top to turn the bearing, a shaft, and then about half inch but no more than 3/4 inch of thread at the bottom to thread into the crank and a long shoulder in between. The bolt broke at the bottom where the threaded part started.
What is the purpose of a harmonic balancer?
Its purpose is to absorb and reduce harmonic vibrations from the engine as the crankshaft rotates, as harmonic vibrations at high engine speeds can cause accelerated wear and damage to the components. The purpose of the harmonic balancer is to reduce engine vibration and in many cases, serve as a pulley for drive belts.
What is the purpose of a harmonic pulley?
The purpose of the harmonic balancer is to reduce engine vibration and in many cases, serve as a pulley for drive belts. Harmonic balancer’s do have many names, though, such as damper, crankshaft pulley and crankshaft balancer, among others.
What should I do if my crankshaft bolt breaks?
If the bolt broke due to bottoming out it will be difficult to get it free. It might be worthwhile to have a well equipped machine shop get the bolt out and save the crankshaft. A drill that runs off center and into the crankshaft threads could destroy it.
” And, to make things worse, it turns out the bolt is made of pewter and is about 3-4 inches in the crank.” If you have room to get a drill on the bolt, get some reverse twist bits and drill it out. The reverse spin sometimes will drive the bolt out. It surely is not pewter.