Local Wagon R engine knock sound on cold start up

[muhammad.talha3001]

Try changing the fuel filter.

[aminjafer5441]

Why would I need to change the fuel filter?

[muhammad.talha3001]

A clogged filter can cause that problem

[aminjafer5441]

But that would also have other symptoms like feul starvation, loss of fuel economy etc. There are no such symptoms so far, wouldn't you agree?
Also The ticking noise is not from injectors as I have detached them on running eninge to see if sound difference is there.

[muhammad.talha3001]

Oh ok, then there must be some other problem.

[scholar.center]

what is engine behavior?

[aminjafer5441]

Engine is behaving normal, no power loss nor jerking nor any missing.

[fareedtareen10]

When cold the oil is less viscous but when the engine is a little warmed up the oil flows better therefore lubrication at the valve train is efficient....it is some kind of oil starvation problem at the valve train....could be costly if the lubrication isn't efficient at the valve train.

[scholar.center]

one rule of thumb. on a running engine. if you remove plug wire or injector connection. that cylinder should produce vibration very prominetly. if you did not observe this, then that cylinder is not working properly.

[aminjafer5441]

I guess Cylinders are working normal since the engine almost stalls when I remove one of injector connectors

[aminjafer5441]

I think starvation would cause the noise consistently, also there is no visible sludge/grime under the tappet cover, it is almost as clean as a new engine. Maybe the valve clearance needs adjustment but I'm not sure I'll have to check in the manual. Oil is 5w30 which flows freely even at low Temps.
Do you know if this engine has mechanical or hydraulic lifters?

[fareedtareen10]

Well that rules out oil starvation at low temps...then it could just be valve clearance.

[scholar.center]

if your car has faulty haudralic lifter.then chances of tik tik sound is higher. you can use lifter cleaner in this regard.

[Parker1]

There is no such need to try any alternate Oils or oil filters as that will not make any change. this problem even occurs when using Suzuki's recommended Genuine Oil & Filters. Just live with it, unless its not making trouble. The noise must be for the time being at the cold start and should go away as soon as the oil flows up.

[aminjafer5441]

Yes noise is only at cold start and stays until engine warms up.

[Parker1]

Yes, so no worries about that!

[aminjafer5441]

Perfect.

[iecspakistan]

Amin Jaffer bhai I am facing same issue in my Wagonr. How did you solved the Knocking sound issue?

[macroscholz]

This post was flagged by the community and is temporarily hidden.

[aminjafer5441]

Unfortunately, an engine knock cannot be fixed without opening it up and repairing it, whether due to worn rod bearings, excessive piston-to-cylinder wall clearance, or any other reason.
What I can tell you is that this engine is very resilient. The knocking sound has increased since (it's been 4+ years now and almost 200K kilometers mileage) to the point that I can hear it even when the engine is warm. I know some people would say now to go for an overhaul, but there is actually no reason other than just the knocking sound. The knocking sound almost goes away once the car is in gear and engine under load.
There is minimal oil consumption so far. There is no smoke in the exhaust, no misfiring, no power loss, and fuel economy is better than ever.
In this situation, always stay on top of the oil changes and try not to exceed 5000 kilometers on a single oil change, especially if driving in the city. You may stretch it out to 6k or 7k km if driving on long mostly.