I like this idea, but I do not understand how the bolt is used to pull the bearing out. To me it looks like a piece is missing on the end of the bolt to capture the bearing. I understand you use the bolt on a slide hammer or perhaps you screw it to force out the bearing. I’m not understanding what keeps the bolt from just sliding out. Please splain.
Hey RB,
I made that tool by taking a hacksaw to cut 4 slots in the end.
I ground the end of the bolt to make it like redneck tap or thread chaser.
My old man was an old school auto mechanic and I remember him making a tool the same way, but may have been used for another application.
The bolt is a metric 19mm, with .491” at the threads, and .494” at the shank. .The inside diameter of pilot bearing is 12mm or 0.473”, so it was a tight fit.
I tapped in the bolt with a hammer until the tip seated against the crankshank.
I began turning the bolt clockwise hoping the threads would force the bearing further onto the bolt and out of the crankshaft.
I tapped and turned until it popped out. It took less than a minute
to get it to pull out of the end of the crankshaft. I found the tool, but I didn’t save the old pilot bearing.
The friction of the bearing as it rode against the threads of the bolt did smash the edges of the threads as it slid further onto the bolt.
I have tried the special tools from AutoZone and they never even came close to working for me.
The post is compressing the photo somehow. Here's the link to the photo on my imgur site:
https://imgur.com/sMCJ112Gnarls
