Real Mechanic Reacts to Horrible Facebook Car Advice

Summary by Krater

Four professional mechanics react to and rate DIY car repair hacks from online videos, determining which tips are legit and which deserve to be locked up.

From the video

Answers: Are viral DIY car repair hacks on social media legit or dangerous?

• DIY car repair hacks
• Car maintenance tips and tricks
• Evaluating online mechanical advice
• Wheel bearing removal
• Tyre rubber removal
• Checking car drain holes
• Straightening bent wheel rims
• Oil filter placement
• Engine cylinder sleeve replacement
• Ball joint removal
• Stud removal
• Serpentine belt installation

What it concludes

• Using a socket and steering force to remove a wheel bearing can work, though mechanics would normally use a hammer.
• Using a vegetable peeler to shave rubber off a tyre to fit aggressive wheels is dangerous and compromises the tyre sidewall.
• Checking and cleaning all car drain holes regularly is a legitimate and important maintenance practice.
• Using a hydraulic press and specialized tools to repair a bent wheel rim is standard, but hammering or heating wheels yourself is risky.
• Checking engine oil filter orientation is critical, but some unorthodox removal methods are impractical or risky.
• Using heat and cold spray (thermal expansion and contraction) to fit a cylinder sleeve into an engine block is a legitimate mechanical science technique, though difficult to do by hand safely on a car engine directly in this manner.