Shop Press

Shop Press is the news and idea hub for everything related to working on cars and trucks, focusing on repair, technology, and wrenching lifestyle.

From the creative minds at:

FEATURE STORY

Hot Off the Press

Cat DTC Diagnosis (P0420) – ASE Practice Question (VIDEO)

Description Technician A and Technician B are discussing the troubleshooting procedure for a P0420 (Catalyst Efficiency Below Threshold) DTC. Technician A says that the presence of any other codes should be considered first before replacing the converter. Technician B...

What Shape Is a Piston?

At this late date, if you work in a standard automotive facility servicing late-model vehicles, it’s probably infrequently you even see—let alone think about—pistons. However, if you are in a rebuild shop, a race environment, or the antique space, seeing a set of...

Cabin Filters – ASE Practice Question (VIDEO)

Description Technician A says that cabin air filters protect the occupants from over 200 known contaminants found in a typical car’s passenger compartment. Technician B says that the cabin air filter protects the evaporator core from copper particles emitted by the...

Should You Replace That Damaged Plastic Intake Manifold?

It seems like plastic is everywhere under the hood of a modern car. You even have to remove a plastic cover to find the engine! But plastic and composite parts like distributor caps and ignition coil housings have been in use for over 100 years. In the 1970s,...

Politics Ain’t Politic

Red, blue, or green? You’ve pieced together the point of this article by now, no doubt. This will not be a piece that risks raising the hackles of those who are deeply political. That’s not because you’re encouraged to avoid the topic, but instead, to do what makes...

Belt Noise – ASE Practice Question (VIDEO)

Description Technician A says that "chirp" is the most common type of noise complaint customers bring to the shop. Technician B says that EPDM belts can be worn out yet pass a visual inspection. Who is correct?A) Technician AB) Technician BC) Both Technician A and BD)...

Try Doing It the Wrong Way

by | Feb 17, 2026

Today’s article is composed of two quick tips that are distinct and different, but interrelated because they’re used on the same items: the humble fasteners we remove and install hundreds of times daily. These tips are both geared to newer techs since we all must find our way when loosening and tightening screws and bolts, but if you’re an old salt, you might still find them helpful if you’ve never tried ‘em (or you are a “see if I can’t find a better way” type).

CanAm
Photo: AI-generated (Pattern PXM).

First, a tip for installing fasteners. To help start a fastener straight, insert it into the female threads, but turn it the wrong way (counter-clockwise). Commercially manufactured bolts generally have a chamfer at the beginning of the bolt. There’s one spot where the bolt will begin to thread, of course. By spinning the bolt the wrong way by hand, you’ll feel that initial thread “catch” or drop into engagement with the female threads.

As soon as your fingers feel the two mate up, reverse direction and spin clockwise and you’ll avoid damage to the female threads. This trick works with nuts, too, but it really shines in situations involving threaded screws or bolts that are going into a softer material, like the all-too-common steel bolt into blind threads in aluminum. It’s also helpful when the first course or two of threads are damaged (often from previous attempts that resulted in cross-threading!) or in exceptionally sloppy threads.

CanAm
Photo: AI-generated (Pattern PXM).

And the second tip riffs on this theme. We’ve all had the uber-stuck fastener that doesn’t want to budge. You likely know all the tricks involving heat and penetrants. You need it to move, but you also don’t want to really give it the beans lest it break, right? Whether you’re using an impact as gently as possible or putting the spurs to your breaker bar, remember there are two directions you can turn the fastener.

Sometimes getting it to budge just a hair—even in the wrong direction—can create enough room that your penetrating oil can start creeping in. If you’ve ever seen videos of threads moving through clear items, you know that fluid can start moving very far without tons of rotation from the fastener. Sometimes going the wrong way can get you that little bit of freedom that allows you to swing a little farther in each direction as you go, and eventually the fastener will come free. This trick can be used to great effect when removing a nut from a stud—rather than risk damage to the stud or the stud walking out, this often breaks the nut free without disturbing the stud.

Sometimes doing things the wrong way is just right!

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.

Related Articles

Shop Press Comment Policy

Participation in this forum is subject to Dorman’s Website Terms & Conditions. Please read our Comment Policy before commenting.

Subscribe
Notify of
guest
0 Comments
Newest
Oldest Most Voted
Inline feedback
View all comments