Neon valves broke?

[Eddie]

Neon 1997 interference engine. Timing belt broke with engine idleing at ~ 800 rpm. Is there a simple way to determine if valves are damaged without removing the head? Thank you. Ed Hayes

 

[Cutehumor]

quote:

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Originally posted by Eddie:
Neon 1997 interference engine. Timing belt broke with engine idleing at ~ 800 rpm. Is there a simple way to determine if valves are damaged without removing the head? Thank you. Ed Hayes

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how many miles were on the belt when it broke? It's really hard to say. I've heard a very rare few say they just slapped on a belt on an interference engine and the engine was fine. But most of the time, timing belt broke, interference engine, there's nothing you can do. if you put the belt on yourself, it'w worth a shot.

 

[Marlin]

Yes the valves are damaged. Will the car run with them like that, MAYBE. But in the end it would have been MUCH cheaper to do basic maintaince, like timing belt/water pump replament, then having to fix it.


Ounce of prevention is worth a pound of cure.

 

[seotaji]

quote:

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Is there a simple way to determine if valves are damaged without removing the head?

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compression test?

 

[JohnBrowning]

COmpression test, Visualy look at the valves with the valve cover off etc.... If I had to wager one way or the other I would bet that you have a bent valve someplace in their!

 

[JTK]

Some manufacturers rate their engines as interference even though they may not sustain damage after a T-belt failure. The only thing I can figure is they are *close* to being smashers & the manufacturer is covering their butt(s). For instance the 1998+ isuzu 3.2/3.5L DOHC is rated as interference per isuzu, but MANY owners have had T-belt breakage without issue. Plus many have done a DIY T-belt changeout, had the valve timing set way off & sustained no damage what so ever. Cam sprokets could be rolled over without interference. Hopefully that's the case for you! Dunno for sure!
G/luck
Joel