Atos damaged crankshaft and cambelt drive gear. - Hyundai Forums : Hyundai Forum
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post #1 of 14 (permalink) Old 03-04-2013, 08:18 PM Thread Starter
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Atos damaged crankshaft and cambelt drive gear.

Hi All

I would like to find out if this is a common problem with the Hyundai Atos 1.1 engine.
The cambelt drive gear which is located on the crankshaft does not have a keyway locator. The crankshaft end has "flattened" sides which the drive gear slides onto. (I hope this makes sense)
Over time this gear's inner portion develops play between it and the crank. This results in a wobble of the gear which worsens over time. This wobble causes damage to the gear and the shoulder on the crankshaft. The gear progessively "moves" toward the engine and results in the belt pulleys touching the camblet cover and the cambelt gear touching the crankshaft end cover. Also the crank timing sensor gets damaged by the timing plate which is on the crankshaft and eventually touches the sensor.

I brought this to the attention of a local Hyundai dealership who acknowledges this is a common problem with this engine and recommends the gear be replaced at regular intervals to prevent this failure.
Needless to say they accept no liabilty for the poor design. ..

Anyone else experience this?

Last edited by GeraldV; 03-04-2013 at 08:20 PM.
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post #2 of 14 (permalink) Old 03-15-2013, 09:55 PM
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post #3 of 14 (permalink) Old 06-07-2013, 08:05 AM
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joyauto
Seen this problem a couple of times, new crankshaft and all that goes with it.
same engine set-up as in the Kia picanto.
Just replace the gear with every timing belt change.
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post #4 of 14 (permalink) Old 06-26-2013, 07:05 AM
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Ruggero58
How often should the gear and belt be changed?
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post #5 of 14 (permalink) Old 05-14-2014, 01:20 AM
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Andrel
Yes, I also have a worn pulley and amaged crank. Has anyone come up with a cheaper remedy as I've been told the only solution is to replace the crank and pulley.
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post #6 of 14 (permalink) Old 06-12-2014, 12:58 PM
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Andrel
Here in Cape Town I've discovered an engineering firm that re-machines the crack without removing the engine. Works out much cheaper. Andrel.
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post #7 of 14 (permalink) Old 06-13-2014, 12:36 AM
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Quote:
Originally Posted by Andrel View Post
Here in Cape Town I've discovered an engineering firm that re-machines the crack without removing the engine. Works out much cheaper. Andrel.
Hi Andre

sorry,I want to ask...because not clear yet

How about this problem solution...welding,changing or.....explaine please

Thx
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post #8 of 14 (permalink) Old 08-03-2014, 01:28 AM
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fanie is an unknown quantity at this point
what i have done is to drill a hole tap it and secure gear
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post #9 of 14 (permalink) Old 02-13-2015, 02:48 AM
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kennethmclennan is an unknown quantity at this point
Thumbs down mr k mclennan

I have 2006 atos prime 1.1. I am on my third cambelt pulley. I was told i need to replace my crank solve the problem. nice hey. Very stupid Design, for all that torque on the two slots.
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post #10 of 14 (permalink) Old 02-13-2015, 05:20 AM
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hi Andrel, Can you please give me the contact details of these guys that may be able to solve my problem. Many thanks. I stay in Rondebosch
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