This seemingly-impolite question can defuse tense situations in the shop or auto parts store.

For the longest time I used to remove cotter pins with either a hooked mechanic’s pick or a pair of needle-nose pliers. And when I say a long time, I mean, probably 15 years. Then my friend Zito showed me a better way. I’ve since seen others use this method, but I didn’t know about it, and it seems anyone I show is either amazed or doesn’t know any other way to do it: use diagonal pliers.
The loop in the head wedges itself in the vee of the pliers and the harder you tug, the more it seats itself. You also have excellent leverage if you rock the diagonal pliers against the item holding the cotter. Since the pin is too thick to be cut (unless you are Superman), the pliers just score up the pin. Since the pin will be replaced anyway, the damage is inconsequential.
After trying Zito’s way once, I was hooked. I can’t even think about how many wheel bearing services I performed, needlessly fighting cotter pins. Try it out if you haven’t.
Who knew removing cotter pins was so easy? I guess everyone but me. Photo by Lemmy.
There’s lot of advice out there about how to choose a reliable mechanic. We asked mechanics what they would advise.
Watch as Lemmy demonstrates the fastest, easiest way to remove a Woodruff key using a common tool that might surprise you. Give it a try next time!
Life can't all be brake jobs and pre-delivery inspections. Beating time is the name of the game, but it doesn't always work out. Watch as a few Dorman mechanics talk about the jobs that make more sweat than bread in this video.
The Proving Grounds crew is back again for a new grudge match in the garage called The Mystery Box.
Learn to ID Miatas generation by generation like a pro (and from a pro!)
The articles and other content contained on this site may contain links to third party websites. By clicking them, you consent to Dorman’s Website Use Agreement.
Participation in this forum is subject to Dorman’s Website Terms & Conditions. Please read our Comment Policy before commenting.