Weak valve symtoms?

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Weak valve symtoms?

Salam bro's

What are the known symptoms on cultus valve weakness?

My car sometimes when i start then engine there is very starange noise from engine it's like it's not stable, and then engines went down... it sound like in carburetor CNG and petrol has been mixed. So if i keep accelerating the car and turning on and off the engine then after 2 3 tries it's sound becomes normal...

And it happens on both either i turnoff engine on CNG or Petrol. This happens sometimes not all the times.

Sometimes even when i try to start the car the sound like "turrr" "turrr" i doubt it's battery, so i got checked battery but it's in fine condition.

One mechanic says it's valve issue while other says that there are no symptoms of valve? I dont know how do i myself diagnose this problem?

Gari.pk User 12254 asked on 18 Dec 2010 09:47:31 am

1 Answer

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Zubair - on 18 Dec 2010 09:48:03 am

Every mechanic is not 100% while telling you truth.
Truth reveals if they open up.
The guy saying you valve problem, may be right, because of which you are facing heat up problems since a couple of months.
Actually when valve's seat burns, it doesnot shut at the head completely, which becomes the cause of leaking heat from combustion chamber and reducing your economy aswell as improper engine's capabilities reducing power,creating viberation etc.

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