93 GTS timing belt broken - Toyota Celica Forum
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#1 (permalink) Old 08-22-2011, 05:04 PM
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Default 93 GTS timing belt broken

I was driving my 1993 celica gts liftback, and the engine just cut out. I could't get it to start up so I towed it to my mechanic.

He told me that the timing belt had broken and I would have to get the belt replaced and a new water pump to see if the engine would even work again. He only gave my car a 10% chance that the engine would work after the belt was replaced.

If anyone has experience with timing belts breaking and the effect on the engine I would greatly appreciate any advice. Is the engine really most likely blown?
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#2 (permalink) Old 08-22-2011, 08:07 PM
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That 10% chance the mechanic is talking about is if the valves bashed into your pistons. I had a 92 eclipse that had the belt break and got lucky and was fine.
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#3 (permalink) Old 08-23-2011, 01:52 AM
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all depends if the 5sfe is an interference engine. Meaning if the timing belt DID fail while running, the valves would hit the pistons, non-interference you should be ok.

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#4 (permalink) Old 08-23-2011, 11:42 AM
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a lot of the Toyota engine's are non-interference, so you should be okay. I would say that the chance of the valves being bent/hitting the pistons on your engine are about 60%. Not as bad as some others I've seen, but that is still a high percentage.
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#5 (permalink) Old 08-23-2011, 12:13 PM
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Default interference engine

thanks guys!

how do I find out if the engine is "non-interference"?
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#6 (permalink) Old 08-23-2011, 12:15 PM
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Google it:

Google
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#7 (permalink) Old 08-23-2011, 12:31 PM
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and even if it is non interference it still has a 60% chance the valves are bent?
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#8 (permalink) Old 08-23-2011, 07:40 PM
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Rest assured the 5sfe is non-interfering.. I had my timing belt snap about 4 months ago, pulled the motor to do other miscellaneous repairs and rebuilds.. Mine broke at about 50mph.. Took the head off, no bent valves.

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#9 (permalink) Old 08-23-2011, 11:07 PM
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5SFE is a non-interference engine. The head should be fine.


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#10 (permalink) Old 08-25-2011, 11:06 AM
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my belt broke doing 110 mph, and head was perfect
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