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What is the difference between an interference and a non interference engine?

Anonymous

∙ 10y ago

Updated: 12/13/2022

Piston to valve clearance.

In the event of a cam belt or timing chain failiure

an engine classed as interference wil suffer considerable damage

when the belt/chain fails the valve timing goes out of sync

which causes the valves to contact the pistons,

resulting in bent/broken valves, possible damage to the valve guides located in the cylinder head, and very rarely damage to the pistons.

A non interference engine,also known as a freewheeling or safe engine.

In the event of belt/chain failiure, the valves do not meet the pistons

I:E the engine fails safe

A precautionary compression test should be carried out after belt/chain replacement

to check condition of the valves.

best wishes

Wiki User

∙ 10y ago

What else can I help you with?

Is the 1MZ-FE engine interference or non interference?

Noninterference engine.

Does 1996 Ford Contour 2.0L engine have an interference engine or non interference engine?

should be non interference

Is the 2.5 engine in a 1999 Mazda Milenia an interference or non-interference engine.?

non interference.

Is your Mitsubishi 3.5l engine a non interference engine?

Yes, it is a non-interference engine.

Does the 1996 Mercury Villager 3.0L engine have an interference engine or a non interference engine?

It is my understanding that Villager engine are non-interference.

Is the 2004 Chrysler 2.4L engine an interference or non interference engine?

It is an interference engine.It is an interference engine.

Is the 1999 Chrysler 3.2 L engine an interference or non interference engine?

It is an interference engine.It is an interference engine.

Does a 2001 Honda Civic LX have a non interference engine?

http://www.gates.com/shared/brochure.cfm?brochure=109 This site has a list of many car makers including hondas with list of recommended belt changes. If your model year has a small asterisk after it, then it is an interference engine. It also has graphic displays so you can see what the difference between interference and non-interference is.

Does the 2001 Mercury Villager engine have an interference engine or a non interference engine?

The Villager is NOT an interference engine. This is straight from a guy who was engineering liaison between Ford and Nissan on this project. The catalogs that say it is are WRONG.

Is the engine on a 1997 dodge stratus 2.4l non interference engine or a interference engine?

Interference,

Does a 3.1 Chevy Monte Carlo engine have a interference or non interference engine?

Interference engine.

Does the 2002 dodge stratus have a interference or non-interference freewheeling engine?

Non-Interference

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