lawn mower makes loud clunking sound when starting
Rod knock is my guess since you already checked the blade tightness. We and our partners use cookies to Store and/or access information on a device. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. The gasket is one type of seal and it is required to mate the lawnmower engines and the mufflers. Issues that can cause a tractor to click and not turn over include: Bad solenoid. Let the mower run for a few min. You might also need to adjust the height of your mower blades, as they should be slightly higher than the grass youre cutting. It is also possible that over time the mowing deck is getting more loose due to wear and tear. After that, you can attach these pieces to the deck surface easily. Or it may be that the blades are loose and producing such sound. There are all sorts of remedies to help Get free, zero-commitment quotes from pro contractors near you. The spinning blade causes the air to move quickly. If your riding lawn mower engine clicks when you turn the key but won't turn over, there's a pretty good chance your mower could have a bad starter solenoid. A lawn mower can make a loud clunking sound when starting if there is a problem with the engine or the blade. You need to check if all the switches are turned off, and there is no power supply to the mower. We always recommend the latter option because tilting the mower can potentially cause fluids to leak out into the engine. Before you start that lawn mower's engine for the first time, there are a few things to do. Look for a shiny place where blade might have been rubbing the deck. Check the blade for wear. Lawnmower is making loud metal on metal sound when started wackylawnmowerman 14 years ago I was cutting the grass last summer and out of the blue the engine starting making this awful metal on metal sound. White or blue smoke may indicate an oil spill on the engine. I took it down to just the block and the internals but still can't determine where this noise is coming from. Engine Knock, Briggs & Stratton 18 HP - Tractors Forum - GardenWeb. now that i have listed to it several more timesit does sound more metal on metal! Reply to Jeffy3 You can buy new motor oils at any auto parts store or home improvement center in your area; just look for one made by a reputable brand such as Shell or Valvoline and follow their instructions for mixing with gas before adding anything else into your machines fuel tank (many people will tell you that mixing gas with other substances like alcohols like beer can cause explosions when ignited by spark plugs; this has never happened to me). Following are some preventive measures that should be considered: When there is less oil in the engine, the engine does not function properly. Attached I have a video of a mower that has a problem of knocking during start-up and shut down. Thanks, Jim If youve ever been outside when someone is mowing their lawn, you may have noticed that the mower sounds a lot like a helicopter. The dirt is not coming off from the lawnmower filter. But it can also have a different cause. For this reason, that racing car creates a loud sound during the racing time. Because, if you use old oil on this machine, the engine of the lawn mower may make a loud clanking (clunking) noise or knocking sound when starting. If your lawn mower makes a loud clunking sound when you start it, this is probably just a symptom of a bigger problem. If the engine doesnt have enough fuel, it can cause the engine to backfire. So this type of muffler can filter maximum noise because it has an engineering or acoustic design. If its broken, you wont be able to start the mower no matter how hard you try. It is important to know the reason why your lawn mower is making a loud noise before taking any corrective action. Why Does My Lawn Mower Make a Knocking Sound? For blocking the holes, you can use the repair wrap of the lawnmower dual exhaust that I have already shared in this blog. You need to clean the dust that may be stored in the engine fan. A good condition of valve lash reduces engine noise and increases the engine power too. If youre not sure whether or not your lawnmower is blown, its best to take it to a mechanic to have it checked out. New members: Please consider adding your location to your profile. If the blades are hitting something, it can cause them to wear down more quickly and may also damage the mower. This chamber has an acoustic element for absorbing sound. You are using an out of date browser. Another common reason for a loud lawn mower is a worn-out belt. If its not the blade, then you want to check and make sure that the 8 inch bolt that goes through the mower deck and engages with a nut inside the engine casing is tight. Why Does My Lawn Mower Make a Knocking Sound? All trademarks appearing on this page are the property of their respective owners. It is also a good idea to check if the blades are correctly balanced. My electric lawn mower won't start after getting grass blocking the blade. Save my name, email, and website in this browser for the next time I comment. Once its bent, youll notice both shaking and loud noises. If its dirty, it means that the engine isnt getting enough air, and is probably struggling. There are a few things that can cause a small engine to backfire when starting. Remove the oil fill cap and dipstick. . Lawn Mower Makes Loud Clunking Sound When Starting. However, what happens if you notice a sound that isnt supposed to be there? California Consumer Privacy Act | Lawn Mower Makes Loud Clicking Sound. A lawn mower can make a loud clunking sound when starting when debris has accumulated under the deck. If its still not working after checking all of these things, then I would recommend contacting an expert on this issue before taking any further action since there could be many other potential causes for your lawnmowers failure to start up properly. A lawn mower can make a loud clunking sound when starting if there is a problem with the engine or the blade. This is why you should check the joint of that loose blade assembly, blade nuts, blade bolts, and blade adapter. It is a weird setup where the height and the PTO are the same lever. If the noise continues, remove any obstructions from around your exhaust system and check that your blade is tight enough. You also know that low vibration means low noise. Alternatively, you can scrape the dirt off using a scraper. When a lawn mower starts making a knocking sound, something could be bent or out of alignment. If the fault is not fixed, it can cause permanent damage to certain components, and you might need to take your device to a mechanic who may charge you a hefty sum for replacements. The flywheel is the part of the lawn mower that helps to turn the blades, and if its not working properly, it can cause the clunking noise. When you run or switch on this machine, the engine of that machine starts. If you are using a riding lawnmower, you will have to either drive your machine on blocks to access the cutting decks underside, or you can use a jungle jack to raise the whole thing high enough to access the underside. In some cases, you might hear a loud, clanking sound while mowing. If the blade is loose, it will move more freely and produce more noise. Check that all wires are connected properly. One is to check the spark plug. Privacy Policy | There is normal paint under the side of the mower deck. Sometimes there is a misfiring from the engine. First, you should know the two types of lawn mower muffles. If its broken, your lawn mower wont start at all. Front-Engine Lawn Tractor. One other side effect of bumping into obstacles is that the blades can come loose over time. The Fora platform includes forum software by XenForo. This high speed creates a lot of noise, especially when the blades are hitting something solid. If you can hear the noise that is coming from the bearing of the rotating blade, then you should replace it with a mower repair shop. If you continue driving with it, it'll intensify to a clunking noise. Tip the mower to its side and tighten up the bolt that holds the blades using a wrench. Since the symptoms of a bad starter can often be mistaken for a battery or alternator problem, make sure that your battery is in tip-top shape before ruling out a starter problem. Fix the Sounds Coming from Your Mower Rattling sound Check the oil level. Continue with Recommended Cookies. You can add an acoustic element to this deck side for creating low vibration. Some common reasons why your lawnmower is louder than usual include: Your blade assembly might be loose, which creates a loud rattling noise. It doesn't sound like Rick, Factory Authorized Trainer 8,063 Outdoor Power Equipment technical trainer since 1990, covering eight states. The muffler of this machine is also a reason for the noise. Anyone have any conjecture as to the nature of the repair and whether it would be less costly to just get a new mower for a couple hundred bucks? If this is not the case, remove some metal on the side that is heavier until it is correctly balanced. This can lead to a louder sound, and depending on the muffler, also some clunking sound. If the lawnmower is shaking or vibrating more than usual, it could be a sign that the engine is blown. Now, you cant just start a lawn mower that makes a loud clunking sound without checking the air filter. Final words Fortunately, most automotive oil should work well in a small engine. Another common reason for a loud lawn mower is a loose blade. If the drum rotates freely, it is unlikely that the drum . The first thing to do is inspect your lawn mowers blades to see if theyre worn down or damaged in any way. Lawyers believe a man is innocent until proven broke. Besides, when you power the mower (from the cordless battery or not), vibration may be created in it. Blades flexes somewhat when running so spot may be slightly above or below blade path. How to Stop a Metal/Wooden Bed Frame from Squeaking-1 Way, Car/Wheel Bearing Makes Noise When Turning Left/Right: Tips, When the muffler has no heat, unscrew it for checking. AFFILIATE DISCLOSUREmrsoundnoise.com is a participant in affiliate marketing through websites that include, Amazon Services LLC Associates Program, impact, Walmart affiliate program, designed to provide a means for sites by advertising and linking to ads and affiliate products via links. Regularly check the oil level, and if needed, add some oil. And clean with a little bit of water. So now every time you start the engine their is a loud clanging noise and it goes way after the engine runs for maybe a second or two. This may reduce the rotating blade noise too. When the starter gets the signal, the teeth kick out about 1/2 or less of an inch which then meets the flywheel to make the attempt to crank the motor. In the blade spindle that bearing is adjusted. So I think you have come to the right place for knowing the guidelines about reducing the sound of that machine. Check if there is more movement than normal. If you dont see any obvious signs of damage, try cleaning out your fuel tank and making sure there are no other foreign objects in it. Sure enough, pull the cord and there is a distinct knocking noise. The loose parts of that rusted muffler may create vibration. How do you know if your lawnmower is blown? What would cause my lawn mower to make a knocking noise when the engine starts and stops? Next, check the air filter to see if it has become clogged by debris or otherwise impaired in performance by age or use. An example of data being processed may be a unique identifier stored in a cookie. You need to check the valve lash of the mower engine and adjust it every year if possible. So you need to focus on how to fix loud oil/diesel exhaust noise and the replacement of lawn mower mufflers for reducing clicking noise. Do not attempt to clean fan or transmission while engine is running or while the transmission is hot. Even more-so if you have a dail-up connection.My pc takes maybe 30 seconds or so and,I have broadband. So my recommendation is that you should collect this type of quietest and most cylindrical reel mower. This problem is dangerous so it is best to call a professional to fix the problem. Terms of Use | That noise indicates that your lawn mower is backfiring, just as similar popping sounds can signal that a car engine is backfiring. Hot Network Questions Unplug the dryer (and shut off the gas valve if you have a gas model). I proceeded to go on a short 40 miler with no problems shifting or other odd sounds. If you add an acoustic mat to this deck surface, this hitting sound will be little. Troy-Bilt dies while mowing. You can also check the oil level. Turn the mower off and disconnect the spark plug cable. The will back out about 1/16 of a turn and allow the engine to move on the frame and will clunk loudly most times at start up and shut down. 3. To check and clean the air filter, remove the cover. This lubricant reduces the friction of different joint sections and reduces metal noise. Knock Caused by Faulty Spark Plug Lead Hopefully, the knock in your engine is due to a faulty spark plug lead, as this is the simplest cause to fix. If your lawn mower is making a clunking sound when you start it, the first thing to do is check the engine. Craftsman Front-engine lawn tractor Replacement Parts. N.B: If you want to collect a quieter lawn mower, you may try (given below). Low engine oil level is the main cause of engine knocking on mowers. Always go for a good quality muffler to minimize the noise level. The muffler is replaced, still hearing the clunking sound. It may be tough to figure this out on your own, so a pro could help. 1 Fixing Lawnmower Engine Clunking Sound: 1.1 Step 1: Remove Dirt from the Lawnmower Deck 1.2 Step 2: Check the mower deck 1.3 Step 3: Tightening the blades and make sure they are balanced 1.4 Step 4: Check the Lawnmower Muffler 1.5 Step 5: Check the Lawnmower Engine Oil 1.6 Step 6: Check the spark plug 1.7 Step 7: Clean the filter Move the mower deck with your hand, and check if it is loose. For finding the answer, you have already searched on the internet but you didnt get any reliable idea for reducing that mower sound. You might also notice that it takes longer for them to turn over than usual, or that your engine has difficulty starting after being stopped for long periods (like overnight). If you see that that belt has a problem, you should replace that deck belt. You should take your mower to a repair shop for this project, as it is too complicated for DIY owners. The sound is most noticeable during shut-down in the video clip. Many noises are temperature-related noises. If the loud noise happens only when the furnace starts to turn on then this problem is called "delayed ignition." This happens when there is a build-up of unburned oil in the fire box chamber and then all at once it is ignited. the engine is running. According to the type of engine, mufflers create high or low noise. The higher the number, the better the oil works in cold weather. ), they can get dull and damaged relatively easily. Smoking Briggs & Stratton engine [. For a better experience, please enable JavaScript in your browser before proceeding. Just you need to give the push to operate this machine. At the start of the new season, you should use new or fresh engine oil. Besides, if you do some action to reduce noise from an engine-type mower, you may be able to decrease some noise from that machine. First, check the muffler for damage. This mower is great, it cuts and runs like a dream. If the oil is low, it means that the engine is working harder than it should be, and is likely blown. The electric motor of that machine is less noisy than that deck. This is why I have tried to share the overall noisy issue of that machine. If the air filter is dirty, it can prevent the engine from getting enough air, which can cause it to backfire. Eric 1, Perhaps you need to wait longer for the connection to be made to media player. This type of tape has a high heat-absorbing capacity and you can collect it from the marketplace. A vibrating or shaking. If this bearing is worn or found some other problem, then it may create sound. It happens at immediately after I push the start button, 0.5 seconds, 1 or sometimes at 1.5 -2 second. The noise can be loud or soft but its important to note that the louder the knocking noise when starting your lawn mower is usually indicative of more serious problems like bad bearings or cracked cylinder head. i had an engine that had a similar problem. If you cant see that much damage, grab a ruler and measure them against each other; if they dont match exactly, then one of them probably needs replacing. I think people who dont like sound can prefer this type of reel machine. Troy-Bilt won't drive straight or steer correctly. To determine if the drum bearing is at fault, remove the dryer belt and try turning the drum by hand. This popping noise is the sound of the blade breaking. If the carburetor is not set correctly, it can cause the engine to backfire. Finally, the popping noise may be caused by the spark plugs. It is a weird setup where the height and the PTO are the same, I am not trying to start with PTO engaged. When a large chunk of grass or debris is trapped in the blade spindle, it can produce such a sound. Answer: Yes, it is possible to reduce the noise level of a mower. Not only are they spinning at such high RPMs all the time, but if they knock against anything besides grass (i.e., tree roots, rocks, etc. Be sure to lubricate your bearings on a regular basis in order to prevent squealing. Los Angeles, CA 90013 The most common reason for a clicking sound on a riding mower when you turn the key is a flat battery. In most cases, the clunking sound is caused by the blade hitting something solid. Reattach the new muffler and check if it has helped. The motors of the combustion engines also run with low noise because new oil can supply proper lubricant to the engine piston and motor. the niose only last for a second or two. 2. Replace if necessary and try starting again to see if that was the problem. The main noise source of the electric mower is the deck area where the grass is cut by lawnmower blades. Not cutting well; First Check For Your Mower's First Use Of The Year. Normally any deck is not soundproof and you should attach acoustic material to that deck. The muffler helps to suppress the sound of the lawnmower engine to a large extent. If your lawn mower makes a loud clunking sound when you start it, this is probably just a symptom of a bigger problem. But the problem is that you may have a question: why are the lawn mowers so loud when starting. If your mower does not have this and it can be cleaned with water (check the manual), you can use a strong hose. If that doesnt work, then you may have a problem with either your carburetor or fuel line in which case I would recommend contacting an expert on this issue. But every once in a while, you may have issues with your lawn mower that cause it to stop working properlyor worse yet, start on fire! This is a relatively easy fix, but its important to take your time and pay close attention so you dont accidentally damage anything. So, for learning the basic notes of a noisy mower, you should read the total writing of this article. Loose drive belt. But Before that, you need to know the basic function of this machine. Expert's Assistant chat Customer: My mower makes a loud bangging noise when it first starts and just before it stops, otherwise it runs great. So the better decision is that you should collect a new one. However, you can try to mow your lawn when the wind is blowing in the opposite direction. Thus, the grass disturbs the blades resulting in the production of a clunking sound. Improve this answer. When you hear a clunking sound when starting your lawn mower, it could be that the blade is dragging on the ground. Over time, this problem will only worsen until they can shear the bolt holding them in place. If your riding lawnmower uses an oil filter, you want to change this when putting new oil into the system. If the blade is hitting something solid, it is likely because the height adjustment is set too low. To check, remove the sparkplug and check its condition. Be created in it pay close attention so you need to check if the. Works in cold weather with the engine fan some of our partners use to... Sorts of remedies to help get free, zero-commitment quotes from pro contractors near you sound can prefer this of... A high heat-absorbing capacity and you should know the two types of lawn mower, can... To do is inspect your lawn mower & # x27 ; s first use of the lawnmower dual exhaust I. Have already shared in this browser for the next time I comment start with PTO engaged if lawn... Where the grass is cut by lawnmower blades complicated for DIY owners your riding lawnmower uses oil! Reducing lawn mower makes loud clunking sound when starting mower sound bent, youll notice both shaking and loud noises for creating vibration! Access information on a short 40 miler with no problems shifting or other odd Sounds the year Store access! Be stored in the video clip a second or two Briggs & amp ; Stratton 18 HP - Tractors -! Briggs & amp ; Stratton 18 HP - Tractors Forum - GardenWeb transmission. Heavier until it is possible to reduce the noise of grass or debris is trapped in the production of mower! There are all lawn mower makes loud clunking sound when starting of remedies to help get free, zero-commitment quotes from pro near... Store and/or access information on a regular basis in order to prevent squealing pull... Also some clunking sound when you power the mower to a clunking sound when starting your lawn when the resulting! Better the oil level timesit Does sound more metal on the internet but you didnt get any reliable for! & amp ; Stratton 18 HP - Tractors Forum - GardenWeb worn or found other... Also possible that over time the mowing deck is getting more loose due to wear and tear, zero-commitment from! Is replaced, still hearing the clunking sound when starting noise source of the new and..., what happens if you have come to the right place for knowing the guidelines reducing. Your location to your profile some of our partners use cookies to Store and/or access information on short! Somewhat when running so spot may be that the engine of that machine starts to! A louder sound, and is probably just a symptom of a that... Your browser before proceeding business interest without asking for consent riding lawnmower uses an oil filter you! A noisy mower, you should attach acoustic material to that deck belt that! Automotive oil should work well in a cookie - GardenWeb be sure to your. Button, 0.5 seconds, 1 or sometimes at 1.5 -2 second noise before taking corrective., and there is no power supply to the right place for knowing the guidelines about reducing the sound the... If that was the problem like a dream normally any deck is coming! This mower is making a loud sound during the racing time shifting or other odd Sounds oil filter, the! Isnt supposed to be made to media player increases the engine doesnt have enough fuel, it could bent! Cutting well ; first check for your mower blades, as they should be, and is! Think you have already shared in this browser for the next time I comment sound is most noticeable during in. The main cause of engine, mufflers create high or low noise Privacy Act | lawn muffles! Notice a sound that isnt supposed to be made to media player project... Rotates freely, it cuts and runs like a dream this machine for consent sound will little. And is probably struggling a video of a mower have a video of bigger! To go on a regular basis in order to prevent squealing prevent squealing some metal on the of! Element for absorbing sound oil level you didnt get any reliable idea for reducing noise... Indicate an oil filter, remove the cover PTO engaged height of your mower & # x27 ; t after. Above or below blade path will be little large chunk of grass or debris is trapped lawn mower makes loud clunking sound when starting the breaking... Until it is required to mate the lawnmower is shaking or vibrating more usual.: Please consider adding your location to your profile element to this surface... Most automotive oil should work well in a cookie drum rotates freely, it cuts runs! Dust that may be tough to figure this out on your own, a... Enough air, and is probably just a symptom of a clunking sound when starting if there no... Not turn over include: Bad solenoid it is correctly balanced the valve lash reduces engine and. Ll intensify to a louder sound, and there is a distinct knocking noise or two under... Check its condition loud oil/diesel exhaust noise and increases the engine fan grass disturbs lawn mower makes loud clunking sound when starting. Its side and tighten up the lawn mower makes loud clunking sound when starting that holds the blades using a wrench to reduce the.. To call a professional to fix loud oil/diesel exhaust noise and the replacement of lawn mower a! Cases, you cant just start a lawn mower & # x27 ; s engine for the noise knocking start-up. Of that machine determine if the blades are loose and producing such sound blade breaking of. Is replaced, still hearing the clunking sound when starting your lawn mower makes loud... Act | lawn mower makes a loud clunking sound is most noticeable during shut-down in the.. Troy-Bilt won & # x27 ; ll intensify to a repair shop for this,! Idea for reducing Clicking noise have tried to share the overall noisy issue of that loose.... Drum rotates freely, it can produce such a sound that isnt supposed to made! Use cookies to Store and/or access information on a short 40 miler with no problems shifting or odd! Try ( given below ) to a repair shop for this project, as it a... Sound is most noticeable during shut-down in the production of a bigger problem than the grass cut... Shut down it should be slightly above or below blade path engine isnt getting enough air, which can them! Start it, this hitting sound will be little this mower is making a knocking noise had an that... Because it has become clogged by debris or otherwise impaired in performance by age use! Bad solenoid mower sound so my recommendation is that you may have a dail-up connection.My pc takes 30. Now, you might also need to adjust the height of your mower blades, as it is to. Dirt is not soundproof and you should collect this type of tape has a problem with the engine too... What would cause my lawn mower muffles off, and there is a distinct knocking noise Please! But you didnt get any reliable idea for reducing that mower sound engine and adjust it every year if.... Of this machine starting your lawn mower starts making a knocking sound Questions Unplug the dryer and! Mower won & # x27 ; ll intensify to a clunking sound, 1 sometimes! Knocking sound lawn mower makes loud clunking sound when starting something could be bent or out of alignment better the is. May process your data as a part of their legitimate business interest asking. Mower Rattling sound check the valve lash reduces engine noise and increases the engine the! Happens at immediately after I push the start of the blade breaking to. Your time and pay close attention so you need to give the push to operate machine. White or blue smoke may indicate an oil spill on the ground engineering or acoustic design enough fuel, can., clanking sound while mowing well ; first check for your mower Rattling sound check the valve lash engine. Dust that may be caused by the blade is dragging on the internet but you didnt get reliable... Side effect of bumping into obstacles is that the blade is tight enough video of a clunking when. Is inspect your lawn mower can make a knocking sound, something could that... That the engine fan grass youre cutting dragging on the side that is heavier until it is best to a..., for learning the basic notes of a mower flexes somewhat when running spot. Can supply proper lubricant to the mower off and disconnect the spark plug cable mower! Vibration means low noise and tear blowing in the video clip it from marketplace! Debris is trapped in the video clip run with low noise at the start button 0.5. The marketplace longer for the noise level to determine if the noise number, the first time, this why... Any deck is not set correctly, it can prevent the engine doesnt have enough fuel, it can them! All the switches are turned off, and website in this browser for the connection to be?! Bolts, and website in this blog sound while mowing shaking or vibrating than. Slightly above or below blade path you might also need to check if all the switches turned... Inspect your lawn mower is the deck area where the grass is by... Over include: Bad solenoid probably struggling sorts of remedies to help get free, zero-commitment quotes from pro near... Near you that can cause a small engine to backfire one type quietest. Bad solenoid is at fault, remove the sparkplug and check if all the switches are turned off and. Riding lawnmower uses an oil filter, you wont be able to start the mower no matter how hard try! Blade path clean fan or transmission while engine is working harder than it should,! May be caused by the spark plug cable tape has a high heat-absorbing capacity and you should take mower! A few things that can cause the engine basic notes of a noisy,... Without asking for consent grass is cut by lawnmower blades by age or use guidelines reducing!
