Is this timing belt worn out?

[ib2loud]

I don't really know how to tell by looking so I took a couple of pictures. I was told it was changed around 90k and the car currently has 110k, but this belt doesn't look that new so I'm thinking I was lied to.

What do you think?

 

[JBScat]

Honestly nobody will be able to tell you with any certainty. Did they give you a receipt for the service?


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[ib2loud]

I'm still trying to get a receipt. I was thinking the white lines on the back of the belt may be a sign of stretching...but then again I'm no mechanic so I'm kind of uncertain on these things.

 

[2014 Blue RS]

Belt looks pretty new. No signs of cracking at all. IMO 2nd pic shows the rubber is still fresh. The rough edges aren't even worn off. Think dimples on a new tire.

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[$ub$onic]

That looks like a 100k Mile belt.

I would recommend changing it.

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[ib2loud]

So we have two completely conflicting thoughts...I don't know what to do. I hate to waste money on an unnecessary belt but I'd really hate to have to replace the engine due to it breaking...

 

[2014 Blue RS]

Take that pic to your local auto store. Don't tell them any history just ask how the belt looks.

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[2014 Blue RS]

Non interference motor do at least you won't slap a piston!

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[ib2loud]

Non interference motor do at least you won't slap a piston!

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Is it? Everything I've read about this engine is that it's an interference engine and a timing belt failure will be catastrophic.

 

[2014 Blue RS]

http://garage.grumpysperformance.co...erferance-vs-non-interfearance-engines.11439/

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[CAMARO-TECH]

don't trust those "Auto Zone" people. They are worthless in my mind. I been a tech for over 11 years. When In doubt replace. There shouldn't be any marks on the ribs when new. In my mind its old. Anyone remember the chevy Aveo and the maintenance said replace at 60k. I saw too many fail before that.

 

[2014 Blue RS]

It for da mn sure isn't 110k belt belt but far be it from me to lead you down the wrong path. My .02

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[Stew]

Rockauto timing belt kits are also calling this an interference engine. Considering I put off replacing the timing belt on my last car, which was also an interference engine, and had it fail on me, I would not screw around and replace it. I have the old shredded timing belt hanging on the garage wall to remind me to not be that stupid in the future.

If it does fail you are looking at pulling the head and replacing a bunch of bent valves - at the least. I did the work myself on my last car and adding up the head work, towing, etc it still came to around $1000. If you have to pay someone to fix it for you it will be a lot more expensive than that.

2013 CHEVROLET SONIC 1.8L L4 Timing Belt & Component Kit | RockAuto

 

[ib2loud]

I went ahead and ordered the belt and tools. I figure it'll be a fun weekend project with the kids either way.

Thanks for all the responses.

 

[$ub$onic]

Non interference motor do at least you won't slap a piston!

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1.8s are interference​.

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[rojoes]

1.8s are indeed interference engines.

 

[arkansawyer]

Chevy dealer wanted $1,220 to replace the belt.
Independent shop wanted $590.
Still thinking about doing it myself.

 

[ib2loud]

Get the right tool to hold the cams in place. I ordered mine from Europe for their cars as it was much cheaper than here stateside. Other than that, it's pretty simple as long as you take your time and can handle a few hand tools. I went ahead and did the water pump and serpentine belt while I was at it. 15k miles since then and I haven't had any issues.