Metal Vibration Noise In The Engine

udararaj · January 29, 2014

Guys i have a viva elite now reached 18000km. Recently i have noticed a metal vibration noise in the Engine. Normally when i drive my car in the hill area like Kandy (Kadugannawa) we need to accelerate more and engine has to give a extra effort. In such situation i can here a metal vibration noise in the engine.. Im using 95 octane petrol.

Davy · January 29, 2014

Sounds like this are very hard to diagnose IMO without actually seeing or listening to it personally. What I can suggest is that you open the bonnet, start the engine and rev the car from the throttle body until the engine hits the speed that would normally generate the sound when you're on the move. There's a chance that the sound is due to a screw that needs proper tightening or a missing clip of a panel.

Abu Raihaan · January 29, 2014

Your query here is very Vague and not precise hence check your Engine Mounts and the Brackets of the Exhaust System.

Uditha88 · January 29, 2014

may be Timing chain issue if occupied. Get it checked.

Edited January 29, 2014 by Uditha88

udararaj · April 16, 2014

i did the engine tune up recently and now there s no sound or trouble of the engine.

But the cost is bit high in Unit#d Mot#rs for the tune up..

more than 10000..

Edited April 16, 2014 by udararaj

The Don · April 16, 2014

On 4/16/2014 at 5:23 AM, udararaj said:
i did the engine tune up recently and now there s no sound or trouble of the engine.
But the cost is bit high in Unit#d Mot#rs for the tune up..

more than 10000..

What was included in the tune up?

Davy · April 16, 2014

Also curious to know how the noise stopped after the tuneup. What was the actual cause for the noise?

udararaj · April 17, 2014

On 4/16/2014 at 12:20 PM, The Don said:
What was included in the tune up?

Changed the air-filter

Changed the spark plugs

Clean the injectors

Check the engine using a hand held device after tune up

udararaj · April 17, 2014

On 4/16/2014 at 1:49 PM, Davy said:
Also curious to know how the noise stopped after the tuneup. What was the actual cause for the noise?

They told me it is due to carbon and other dirty stuff in the injectors.

The Stig · April 18, 2014

On 1/29/2014 at 2:24 AM, udararaj said:
Guys i have a viva elite now reached 18000km. Recently i have noticed a metal vibration noise in the Engine. Normally when i drive my car in the hill area like Kandy (Kadugannawa) we need to accelerate more and engine has to give a extra effort. In such situation i can here a metal vibration noise in the engine.. Im using 95 octane petrol.

Regarding your problem yes i think they might be right about the injectors, since fuel in Sri Lanka isnt completely debree free its normal for injectors to get clogged up after some time. BTW use an injector cleaning fluid from time to, it will increase the time you need to do a complete injector cleanup.

On a side note it seems that unimo is recommending people to use 95 octane for the Elite which is absurd, there seems to be a big design flaw in this cars engine compression and timing.

Contrary to popular belief higher octane does not mean cleaner fuel nor does it mean better power or efficiency in an engine designed for lower octane fuel. It just has more octane which acts as an anti knock agent meaning the engine can compress fuel to higher ratios without unexpected ignition (Knocking), yes you should use higher octane fuel in a larger engine designed for higher compression however there is no point in using it in a lower compression engine like yours (This has been discussed to death previously, if you dig around you will get plenty of more info on this in AL).