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After wrong timing

Tiny
ROWLEY96
  • MEMBER
  • 1994 KIA PICANTO
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
My camshaft pulley not stable when running, what should I do?
Wednesday, April 6th, 2011 AT 12:02 PM

10 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Check if it is correctly seated and torqued to specs.
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Wednesday, April 6th, 2011 AT 12:04 PM
Tiny
ROWLEY96
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  • 12 POSTS
Yes, I already checked the seat and torque. Set valve already but same problem. When I replace new water pump and timing belt, I forgot the timing mark, then I crank it 3 times. Then I check again the mark wrong 3 teeth. But why pulley camshaft not stable?
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Wednesday, April 6th, 2011 AT 12:16 PM
Tiny
KHLOW2008
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If the camshaft is wavy, it definitely is not seated correctly. There could be something stuck behind between the pully and camshaft.
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Wednesday, April 6th, 2011 AT 12:21 PM
Tiny
ROWLEY96
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Yes the camshaft is wavy, is that need to change new valve or not? Because the compression and valve noise, ok ill check tomorrow and top ovahaul. :D
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Wednesday, April 6th, 2011 AT 12:29 PM
Tiny
KHLOW2008
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If there is abnormal noise and the compresion has dropped. Check the valve clearnances. If they are excessive, you would need to remove the head to replace the valves as they are damaged by the wrong timing belt installation.
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Wednesday, April 6th, 2011 AT 12:32 PM
Tiny
PLATINUMHYUNDAITECH
  • MEMBER
  • 29 POSTS
Camshaft is wavy? Did you remove the pulley at all? Sounds like something is bent.
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Wednesday, April 6th, 2011 AT 11:22 PM
Tiny
ROWLEY96
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Yes, the camshaft still wavy. I didnt remove the pulley at all. I just replace new timing belt and water pump. Camshaft spoket wavy when running the engine. Im didnt remove the head yet. The valve sound noise, compression stable.
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Thursday, April 7th, 2011 AT 4:21 PM
Tiny
KHLOW2008
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A minor wavy movement is normal but if it is too much, the sprocket could be bent and requires replacement.

For the valve noise, have the valve clearances checked/adjusted, unless it is hydraulic lash adjusters (HLA) which requires them to be serviced/replaced. Our database does not have any information on the engine so I do not know if it is HLA.

Stable compression indicates the valves should not have been damaged by the skipped timing belt installation, unless they are lower than specifications.
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Thursday, April 7th, 2011 AT 5:57 PM
Tiny
ROWLEY96
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You are expert. All you said is correct. Thanks a lot.
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Sunday, January 20th, 2013 AT 4:35 PM
Tiny
KHLOW2008
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You're welcome.
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Wednesday, January 23rd, 2013 AT 7:08 PM

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