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Tsikot Member
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- Dec 2009
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December 17th, 2009 04:01 AM #1Mga bossing meron po ako naririnig na "knocking sound" kapag bagong andar po yung car. pero kapag umaadar naman na nawawala naman po siya. pero minsan po kapag galing ako mabilis tapos bigla hinto then bibilisan ko po ulit meron po ulit siya pero konti lang hindi kagaya kapag bagong andar po. siguro mga 15-20 seconds bago mawala yung sound. honda civic vti '96 po. newbie lang po.
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December 17th, 2009 06:23 AM #2
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December 17th, 2009 06:38 AM #3
Kadalasan pag bagong andar makina mo sa umaga maririnig mo iyan hindi pa kasi umiikot ang langis sa makina. Bumababa kasi sa oil pan ang langis pag hindi mo ginagamit sasakyan. Check mo rin langis mo sa dipstick baka kulang.
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December 17th, 2009 07:08 AM #4
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Tsikoteer
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December 17th, 2009 10:13 PM #6ano ba ang dati mong nilalagay na langis kapag oras ng change oil ng makina mo?
at nagbago ka ba or nagpalit ka ba ng ibang langis nung last ng mag change oil ka?
kasi nangyayari yan kapag nagpalit ka ng ibang magkaibang viscosity ng langis baka dati ang ginagamit mo ay fully syntethic tapos nag mineral oil ka.
isa rin pupuedeng dahilan kung bakit makatok ang makina mo baka dati naman ay hi-octane fuel ang nilalagay mo tapos naglagay ka ng mas mababang octane ng fuel.
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December 18th, 2009 04:40 AM #7
Nag engine oil flush kami (both a Honda and a Mazda.) and oil changed for around 2 weeks we used Mineral Oil (Shell)temporarily where before Fully Synthetic (Shell Helix) and nakakalagay sa dalawang kotse. Then we changed back to Fully Synth (Motul 1). Wala naman knocking na nanyari nung nag Mineral Oil kami from Fully Synthetic.
Nuon I also moved from Shell V-Power to Caltex Silver. Wala din knocking sa Honda.
But when one of the spark plug nung Mazda e bumigay, ayun me slight knocking sound pag start engine which becomes negligible pag tagal. Palit spark ok na naman.
ime.
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Tsikot Member
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- Dec 2009
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December 19th, 2009 02:31 AM #8mga bossing salamat sa input. same lang naman po yung oil it is a castrol magnatec actually po wala pa 2K km. simula nagchangeoil ako. gasoline ko po is shell unleaded then nagpalit na rin po ako ng sparkplug. oil po tama naman yung laman.
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Verified Tsikot Member
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January 26th, 2010 02:45 AM #9
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Verified Tsikot Member
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January 27th, 2010 03:29 PM #10Pre,
ang knocking sound is caused by wrong timing. The knock you here is actual is a premature ignition. That means your ignition is too early for that specific fuel. Ang fuel naman po are rated by the octane ratings. normally from 85 to 98. the higher the rating the lower the flash point.
So if you have been running your car using normal 90 octane fuel. All is well. But when you change to a 95 octane, it will knock. That means you have to delay your ignition a little bit, say another 3 deg BTDC. Try mo lang po, mawawala po ang knocking.
I hoped I helped. Happy driving
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