Automotive Dictionary

We know mechanics can speak their own language. That’s why we’ve tried to de-mystify some of the more unusual terminology to ensure you’re in control of your vehicle.


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K

Kadenacy effect:
When a port of a two-stroke engine opens abruptly the cylinder pressure gives rise to a positive pressure wave transmitted down the exhaust pipe at the speed of sound.

Kangarooing:
The action of moving forward in a succession of sudden jerks as a result of improper use of the clutch in manual cars.

Kit car:
A vehicle designed for assembly by a hobbyist.

Knocking:
Also known as ‘detonation’, this is a rapid rattling that’s heard upon acceleration.

Knurled piston:
A piston where a raised pattern is machined into the skirt area to increase compression.

Kombi:
The Volkswagen Type 2 camper van. Shortened form of Kombinationskraftwagen.

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Who is Elvio?

Elvio is a seasoned Motor Mechanic with 25 years experience in the automotive industry. Well-known for asking the most obvious questions and his bizarre obsession with Datsuns (having owned more than 10), he seems to think the 70s was the golden era of motoring. Current rumours suggest he owns more than 100 caps, prefers Belgium bier to Australian and has been confused with the real Speedy Gonzalez. Well-known at the racetrack for getting maximum performance on a budget and his obsessive attention to detail, he is now taking his passion for all things with an engine to help his customers in his blog. Ask Elvio.