Why Valve Tappets are Noisy, Ticking, Tapping 99% of the time!
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- Опубліковано 8 лип 2023
- Valve Lash, or Valve clatter is at the center of this problem. A common problem with your Valve Tappets. Here I Explain
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Introducing my other Channel "Things to Know" - which i'm just getting started. It's a go-to channel for insightful worldly explanations, handy tips, and expert advice on everyday things and repairs of domestic items. Here is the link: / @thingstoknow3645
Internal combustion engines require regular maintenance, including valve lash correction. To guarantee optimum valve operation and engine performance, the space between the valve stem and rocker arm must be regulated.
An engine's valve train noise, sometimes referred to as valve clatter or valve tapping, is the audible sound made by the moving and colliding parts of the valve train. It is a frequent problem whose severity and frequency might change depending on a number of factors.
Inadequate Valve Clearance: Inadequate valve clearance is one of the main reasons of valve clatter. The components can make contact and produce a tapping or ticking sound when the engine runs if the space between the valve stem and the rocker arm or cam follower is too short (tight). The valve cannot fully close due to insufficient clearance, which results in insufficient compression and potential performance problems.
Worn or Damaged Valve Train Components: The rocker arms, lifters, pushrods, and camshaft are a few examples of the valve train parts that can wear out or become damaged over time. Increased clearance between the components due to wear may increase the force with which they collide and produce valve clatter.
Lack of Lubrication: To ensure that the parts of the valve train operate without interruption, proper lubrication is essential. Insufficient lubrication can increase wear and friction, which can result in valve clatter. Low oil levels, bad oil quality, or a broken lubrication system are all causes of insufficient lubrication.
Valve springs that are deteriorating or worn out: Valve springs are essential for regulating the opening and closing of the valves. Due to metal fatigue, these springs may become brittle or lose their tension over time, causing valve float and an increase in valve train noise.
High engine RPM: When the engine is running faster, the parts of the valve train are subjected to greater forces and velocities, which can enhance valve clatter. Given that they have less cushioning than hydraulic lifters, mechanical valve lifters and solid lifters are particularly susceptible to this impact.
Not just annoying, valve clatter might be a sign of future issues with the engine. Valve clatter can have a number of implications.
Reduced Engine Performance: Valve clatter can result in a decreased engine performance, which can affect the power output, the throttle response, and the fuel economy.
Increased Wear: Excessive valve clatter can hasten the deterioration of the valve train's parts, sometimes resulting in early failure and expensive repairs.
Engine Damage: When valve clatter is severe, it can interfere with the movement of the pistons, bending the pistons and valves and perhaps leading to catastrophic engine failure.
Reduced Valve Clatter:
In order to address valve clatter, the root causes must be found and fixed. Potential remedies include the following:
right Valve Clearance Adjustment: It's important to make sure that the valve clearance settings are right and according to the manufacturer's guidelines. The valve clearances should be regularly checked and adjusted to maintain maximum engine efficiency and reduce valve clatter.
Maintenance and Replacement: Replace broken or worn valve train parts, such as worn lifters or worn valve springs, as soon as possible to stop valve clatter. To avoid excessive wear, regular engine maintenance is also essential. This includes oil changes and lubricating system inspections.
Lubrication: By keeping the oil levels in check and using the premium lubricants the manufacturer recommends, you may improve the lubrication of the valve train's components, lowering friction and valve clatter.
Professional Inspection: Consulting a knowledgeable mechanic or technician is advised if valve clatter continues despite corrective actions. They can perform a thorough inspection of the valve train and related parts to find any underlying problems that need fixing or replacing.
Thank you
Craig (Owner and Creator of The Repair Specialist Channel)
#ValveLash
#ValveClatter
#EngineMaintenance
#ValveAdjustment
#ValveTrain
#EnginePerformance
#Lubrication
#MechanicalIssues
#EngineRepair
#InternalCombustion
#AutomotiveMaintenance
#EngineNoise
#EngineHealth
#ValveClearance
#MechanicAdvice - Авто та транспорт
Hi guys I just wanted to Introduce to you my other Channel "Kirkman's Academy" - which i'm just getting started. It's a go-to channel for simple explanations for hard to grasp subjects such as physics, maths and chemistry etc. Here is the link: www.youtube.com/@kirkmansacademy/videos . Thank you so much for looking, and if these topics interest you then I hope to see you the there. Many thanks indeed. Craig 😊👍
Hi new subbed here do you have facebook so I can msg you ? pls I badly need your help for my scooter that has high lift cams, producing this ticking sound
This is the best explaination with sound and the whole action how it happens.
Thank you so much 👍👍👍
I used to adjust the valve lash, in about 15 minutes once the valve cover was removed... New rocker arm was about $2.75. New pushrod a $1.99. I charged about $15.00. labor plus parts. Pull your heads and new head gaskets, about $60 plus parts... Milling the heads and grind the valves and seats, was. $50 per head. New cam and lifters installed about $100 plus parts...
Simple, straightforward explanation 👌👌
Extremely simple yet effective explanation, so impressive how some people can teach and explain everything they know in a way anyone can understand,
thank you so much sir!!!
👍👍👍👍👍 ⭐ ⭐ ⭐ ⭐ ⭐
Thank you so much. I really appreciate it. Craig 👍
Now I know what to listen for when buying a used car.
Thank you!
This type of situation really doesnt happen with modern cars that dont use solid parts, but still, if you hear excessive clatter you would want to look for another car yes.
Special thanks to Click and Clack the Tappet brothers of Cambridge, MA
Hey, thats very informative.
I have couple of doubts, could you please clarify them-
Is this causing my engine to lose power and also increases engine vibrations?
My motorcycle is making clattering noise, and when I accelerate, it jerks forward for a moment. When I let go of the throttle, it suddenly slows down.
Is this something to do with the valve clearance?
Does this apply to modern engines? I can hear a slight clatter or ticking noise as I accelerate a little faster but it’s only noticeable when you give it more gas or going up an incline
Very well done.
.👍# 5
Stay well, Joe Z
Is it ok to set tappet loose after a fresh engine rebuild? the idea is to let valve seat to adjust properly cause they were built new too.
Interesting stuff
There is little ticking sound in my newly purchased TVS Jupiter Zx 110 cc scooter when i run it. Technical said it's no problem. What shoult I do ?
Hi new subbed here whats the disavantage if you have this valve clatter
Hi how can we fix this tappet make it tight or something else to do ?
Thanks for your valuable information.. excellent 👍
You are most welcome
Does it cause serious damage to the engine??
My car has this.. what is the solution? How much does it cost to fix?
Wow thanks, so thsi could also mean the stem valve seals are also warn down? As I checked my piston and noticed oil on the piston head
Yes, absolutely, you could be right on that. Nice one. Craig
New Sub🤙🏻💯😀
Some years ago, I bought a 1997 Volvo V70 with this noise. Ran it for 40 000 km and sold it further on. If its an old car, just run it. The engine will most likely run for a very long time anyway.
It sounds like you had quite the journey with your 1997 Volvo V70! It's true that sometimes with older cars, a little noise here or there is just part of the charm, and it's great to hear that you were able to drive it for another 40,000 km with no major issues. Volvos are known for their durability and longevity, so it's no surprise that the engine kept on chugging along. It's all about enjoying the ride and making memories along the way. Happy driving!
Craig
Master 🙏
How to fix it then?
HI. you just need to adjust your valve clearances. Here is some guidance on that but you must read your manufacturers handbook for their procedure, safety advice and their clearance settings before attempting this procedure, but here is a guide of the sort of thing you will be needing to do:
Setting the valve clearances on a small single-cylinder 4-stroke engine is an essential part of regular maintenance to ensure that the engine runs smoothly and efficiently. Here's a general guide on how to set the valve clearances:
Note: Be sure to consult your engine's specific service manual for the correct clearance values and procedures. This is a general guide and may not apply to all engines.
Tools and Materials Needed:
Wrenches or socket set
Feeler gauges
Screwdriver
Service manual (for specific engine clearance values)
Steps:
Prepare the Engine:
Make sure the engine is cool and not running.
Disconnect the spark plug wire to prevent accidental starts.
If necessary, remove any engine covers to access the valve components.
Locate the Valves:
Typically, the valves are located on the cylinder head.
There should be two valves: an intake valve and an exhaust valve.
Determine Top Dead Center (TDC):
Rotate the engine's crankshaft to find the top dead center position for the cylinder. This can be done by either following the engine manufacturer's instructions or by using a timing mark on the flywheel.
Check the Clearance:
Use the service manual to find the recommended valve clearance specifications for your engine.
Insert the feeler gauge of the appropriate thickness between the valve stem and the rocker arm (intake valve) or between the valve stem and the adjustment screw (exhaust valve). The feeler gauge should slide in with a slight drag.
If the gap is too tight or too loose, you will need to adjust it.
Adjust the Valves:
To adjust the valve clearance, you may need to loosen the lock nut on the adjustment screw. Use a wrench or socket to do this.
Turn the adjustment screw to achieve the desired clearance. Turning it clockwise decreases the clearance, while turning it counterclockwise increases it.
Recheck the clearance with the feeler gauge and make further adjustments as needed.
Once the clearance is set correctly, tighten the lock nut while holding the adjustment screw in place.
Recheck and Finalize:
Recheck the valve clearances to ensure they are within the specified range.
Once you are satisfied with the clearance, replace any engine covers you removed.
Reconnect the spark plug wire.
Test the Engine:
Start the engine and let it run for a few minutes to ensure it's operating smoothly.
Maintenance Records:
Keep a record of when you last adjusted the valve clearances to help you stay on top of regular maintenance.
Valve clearance adjustment is crucial for maintaining proper engine performance and preventing damage. If you're unsure about any of the steps or don't have experience with small engines, consider seeking help from a qualified technician or consulting the engine manufacturer's service center for guidance specific to your engine model.
I hope this helps a little.
Craig
Thank you@@TheRepairSpecialist
If your car suffers this condition just move to Minnesota and drive in a passive aggressive manner and the engine heals itself. 👍
This is the truth 🎉
I bought a 2015 Mitsubishi Outlander, 2.0 Litters, with only 43,000 miles and it's already making that noise. What a crappy car.