The Easiest Way to Set Valve Clearances! (by Craig Kirkman)

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  • Опубліковано 27 лис 2024

КОМЕНТАРІ • 117

  • @Dorado1997
    @Dorado1997 Рік тому +25

    Your cut away engine is just amazing. I feel like I could just stare at it. Most of the engines I work on are the Briggs with the over head valves and the plastic carbs. This helps me understand the whole system perfectly. Thank You!

    • @TheRepairSpecialist
      @TheRepairSpecialist  Рік тому +6

      I'm absolutely thrilled to hear that you're loving the cut-away engine! 😃 It's fantastic to know that it's been so helpful in enhancing your understanding of engine systems, especially with the more modern Briggs engines. Your appreciation and kind words mean a lot to me, and I'm here to provide more insights and information whenever you need it. Keep up the great work, and being happy tinkering with those engines! Craig

  • @RocBoyUniGee585
    @RocBoyUniGee585 6 місяців тому +46

    I smoke ALOT of weed and my memory isn’t as good along with the fact I’m a visual learner. Your tutorial was very concise with amazing clarity. I’ll never forget this.

  • @17maukabtsab
    @17maukabtsab 11 місяців тому +12

    Absolutely impressive demonstration

  • @marcmyers1465
    @marcmyers1465 11 місяців тому +9

    You Sir, Have a Gift ! You are an exceptional Instructor !!! 😉👍

  • @metheewatchakittikorn4796
    @metheewatchakittikorn4796 Рік тому +27

    You sacrificed one of your engine to give knowledge to people. Thank you so much.

  • @Blucenturion344
    @Blucenturion344 9 місяців тому +1

    I had a GS1000 BMW that would need adjustment every month. I did a few, but if I took it to the dealer it would come back perfectly adjusted, I never knew how he did it so perfectly. Maybe 8 hrs daily had something to do with developing skill. I drive a Tesla today, these are but distant memories, of course. Thanks for the detailed explanation.

  • @onlythetruth883
    @onlythetruth883 Рік тому +7

    As usual you are the very best.
    Your explanations are unparalleled.
    Thank you.

  • @breetaylor4586
    @breetaylor4586 9 місяців тому +1

    This is great. Currently I'm working on cleaning my dirty valves, and wanted to know how to get the clearance right upon reinstall. I'm a very visual learner so seeing your cut engine block was great help, thank you!

  • @dirtsquad7127
    @dirtsquad7127 Місяць тому +1

    Probably the best valve clearance adjustment explanation out there. Big thanks!

  • @carlosbah4623
    @carlosbah4623 Рік тому +4

    It's an honor to be the first comment in those fantastic videos.
    Probably the best out there in all the www in this world of small gasoline engines

  • @elementalearth5096
    @elementalearth5096 11 місяців тому +3

    That was awesome thanks so much! I have an Allis Chalmers 170 from the early 70ties and I'm replacing the valve cover gasket, so while I'm in there I will attempt to set the valve lash to factory spec again. Your video helped immensely on accomplishing this. Much appreciated, merry xmas

  • @josepheneziakpo1256
    @josepheneziakpo1256 4 місяці тому

    Best video on this topic. I have watched a lot and I'm very stingy with my compliment. Infact you are the only one that deserves a compliment. I bet you were once a teacher

  • @wayneberry8703
    @wayneberry8703 Рік тому +8

    Thank you so much it was a fantastic insight into adjusting the valves.

  • @marcusscott9800
    @marcusscott9800 Рік тому +8

    Thank you so much for a crystal clear explanation and demonstration of adjusting valves. I learn so much from your videos. Keep up the great work:)

  • @davidkang6663
    @davidkang6663 10 місяців тому +2

    I'm learning new things every day.

  • @lewis84fan1965
    @lewis84fan1965 Рік тому +3

    Thank you Sir,
    New Orleans, Louisiana here !!

  • @jaysimpson
    @jaysimpson 2 місяці тому

    this is fantastic. this one is definitely for the analytical minds that want to know the "why?"
    thanks brother.

  • @xdriedxproductions566
    @xdriedxproductions566 3 місяці тому +1

    thank you for this video, didn't understand what was being adjusted untill now.

  • @aaba1473
    @aaba1473 Рік тому +4

    Awesome video explaining why and how. My old marine diesel engine does not have a spark plug to check the TDC. Do you have any practical advice for finding the TDC on diesel engines?

    • @TheRepairSpecialist
      @TheRepairSpecialist  Рік тому +3

      Finding Top Dead Center (TDC) on a diesel engine without a spark plug hole can be a bit more challenging, but it's still possible using various methods. Here are some practical ways to locate TDC on a diesel engine:
      Manufacturer's Manual: Check if there's a manufacturer's manual for your specific marine diesel engine. It might provide instructions or diagrams to help you locate TDC.
      Crankshaft Markings: Many diesel engines have markings or notches on the crankshaft pulley or flywheel to indicate TDC. You might need to remove an access cover or inspect the engine from below to see these markings. Use a timing light or a simple timing tool to align the marks with a reference point.
      Dial Indicator: A dial indicator is a precision tool that measures piston movement within the cylinder. You can attach it to the engine and rotate the crankshaft by hand. The indicator will show when the piston reaches its highest point (TDC).
      Valve Lash Method: If you need to adjust the inlet and exhaust valves, you can use the valve lash method. Rotate the engine slowly by hand until the intake and exhaust valves are both closed for the cylinder you're working on. At this point, the piston should be very close to TDC, and you can make fine adjustments from there.
      Compression Stroke Method: If you have access to the camshaft, you can determine TDC by observing the position of the cam lobes. The piston is at TDC when both valves for a particular cylinder are fully closed and the cam lobes are not pushing on the valve lifters.
      Trial and Error: If none of the above methods work, you can use a trial-and-error approach. Slowly turn the engine by hand while observing the movement of the valves or the compression gauge. When both valves are closed and the engine seems to resist turning, you are likely close to TDC. Fine-tune from there.
      Remember that it's essential to be patient and cautious when attempting to locate TDC. Rotating the engine slowly by hand to avoid any damage and using tools carefully is crucial. Additionally, ensure the engine is in neutral or properly secured to avoid accidents. If you're not confident in your ability to find TDC, it's best to consult a professional mechanic or service manual for your specific engine.
      I hope this helps a little
      Craig

    • @aaba1473
      @aaba1473 Рік тому +3

      @TheRepairSpecialist Thanks for your detailed answer. I have checked the manual of my 50 year old Volvo Penta MD2B. Using your valve and lash method, I have found the TDC which is between the closure of exhaust and opening of the intake valve (the valves rock one after another). Based on the info from the manual, I made one full rotation to bring the piston to the TDC of compression cycle where both valves were completely closed. I adjusted the valves at this point. Many thanks again.

  • @shafeequeauto5454
    @shafeequeauto5454 4 місяці тому +3

    Sooper.... Sir...... Nice teaching... I am from india.... Thanks sir....

  • @IsleOfFeldspar
    @IsleOfFeldspar 8 місяців тому

    I have to do a head gasket on an old three cylinder diesel and this basic instruction helped.

  • @rickthelian2215
    @rickthelian2215 Рік тому +3

    Thanks for a great explanation 😊

  • @brendanormsby2731
    @brendanormsby2731 6 місяців тому

    Thank you so much for this video! I was able to replace a broken exhaust valve and set the valve lash on my mower.
    I have a couple questions, could incorrect valve lash have caused the exhaust valve to break? The stem broke about quarter inch from the valve lid and was just sitting on the piston head when I took the cylinder head off.
    Also, is it a good idea to check the valve lash on a new mower before first use?
    Thanks again for your invaluable channel!

    • @TheRepairSpecialist
      @TheRepairSpecialist  6 місяців тому +1

      thank you for watching and I'm thrilled to hear that the video helped you successfully replace the exhaust valve and set the valve lash on your mower!
      Regarding your questions, incorrect valve lash can indeed lead to various issues, including potential valve damage over time. When the valve lash (the clearance between the valve stem and the rocker arm or camshaft) is too tight or too loose, it can impact how the valve operates within the engine. If the clearance is too tight, the valve may not fully close, leading to overheating and potential failure. Conversely, excessive clearance can cause noisy operation and inefficient valve timing.
      In your case, the broken exhaust valve could have been a result of incorrect valve lash, especially if the valve was not seating properly due to inadequate clearance. This can lead to excessive wear and stress on the valve, ultimately resulting in failure.
      As for checking valve lash on a new mower before first use, it's generally a good practice if the manufacturer recommends it in the owner's manual. New engines can sometimes require initial adjustments as they settle in and parts wear in. Checking and adjusting the valve lash as per manufacturer specifications can help ensure optimal performance and longevity of your mower's engine.
      I'm glad to hear you find the channel valuable, and thank you for your thoughtful questions! If you have any further inquiries or need more assistance, feel free to reach out. Keep up the great work maintaining your mower, and happy mowing!
      Best regards,
      Craig

  • @TD-ox4pf
    @TD-ox4pf Місяць тому +1

    wow absolutely amazing tutorial with visual for novice. thanks!!!

  • @jaspersabado3859
    @jaspersabado3859 Рік тому +2

    How do you compute the right valve clearance if you used higher cam lift?

    • @TheRepairSpecialist
      @TheRepairSpecialist  Рік тому +3

      Well Its just a case of using the correct specs from the manufacturer really. Taking a look at the owners/service manual

  • @bryanMish
    @bryanMish 4 місяці тому +1

    Very concise explanation thank you!

  • @Broken_robot1986
    @Broken_robot1986 5 місяців тому

    I'm going to tackle my Fit's valves this weekend. Scary for me to open the valve cover on my only form of transportation but my baby needs it. Wish me luck!

  • @cletuskaunda5665
    @cletuskaunda5665 Рік тому +3

    Good work,bro

  • @sidneyfreeman5545
    @sidneyfreeman5545 7 місяців тому

    thank you for all the information you are providing. I have a 4 stroke small engine. The recoil string pulls freely when I remove the spark plug. It is very difficult to pull with the spark plug on. What can be wrong? Your advice is greatly appreciated.

  • @nomoreblahblah
    @nomoreblahblah 3 місяці тому +1

    Very good. Excellent for the novice DIYer.

  • @Motoman3lwarshan
    @Motoman3lwarshan 8 місяців тому +1

    Thank you

  • @tyrotrainer765
    @tyrotrainer765 4 місяці тому +1

    Not trying to be a smart Alec; is it necessary to take account of valve overlap? EG adjusting the inlet when the exhaust valve just starts to open, and the exhaust valve when the intake just starts to close? I've heard this argued on another video and I'm not sure if this is over-complicating things? Or does setting the manufacturer's setting at TDC take into account overlap?

    • @TheRepairSpecialist
      @TheRepairSpecialist  4 місяці тому

      Hi! Thanks for your question and for watching my video.
      When adjusting the tappets and valving system on a small petrol lawnmower engine, the manufacturer's recommendation to set them at Top Dead Center (TDC) generally simplifies the process and ensures accuracy. At TDC, both the intake and exhaust valves are closed, eliminating the need to account for valve overlap.
      Valve overlap, which occurs when both the intake and exhaust valves are open simultaneously, is more relevant in high-performance engines where precise timing adjustments are crucial. For most small lawnmower engines, adjusting the valves at TDC, as per the manufacturer’s instructions, should be sufficient and effective.
      So, unless you're dealing with a specialized engine, setting the valves at TDC should work perfectly fine and avoid over-complicating the adjustment process.
      I hope this helps clarify things!
      Thanks
      Craig

    • @tyrotrainer765
      @tyrotrainer765 4 місяці тому

      @@TheRepairSpecialist It does Craig. Mustard! 👍👍👍

  • @hossenahmed2715
    @hossenahmed2715 6 місяців тому +1

    If you have a manual car a good way to move the engine in to put it in forth and move it forward and backwards with out the key being on

    • @TheRepairSpecialist
      @TheRepairSpecialist  6 місяців тому

      Hi
      thank you for sharing your tip about adjusting valve clearances in a manual car by moving it forward and backward without the key being on. This is indeed a clever method to rotate the engine for valve adjustments without the engine running.
      For those who may be unfamiliar, this technique involves putting the car in gear (such as first or fourth gear) and then physically moving the car by pushing it back and forth. This action rotates the engine's crankshaft, allowing access to different valve positions for adjustment without needing to start the engine.
      Adjusting valve clearances is an important maintenance task for ensuring optimal engine performance and longevity, and your tip offers a practical approach for completing this task safely and efficiently.
      As always, when working around a vehicle, it's essential to prioritize safety by engaging the parking brake, ensuring the car is on a level surface, and taking necessary precautions to prevent accidents.
      Thank you for sharing this helpful advice with our community. If you have more tips or questions related to engine maintenance, feel free to reach out. Your contributions are valued and appreciated!
      Best regards,
      Craig

  • @billybowen3023
    @billybowen3023 Рік тому +3

    Thank you great one.

  • @thelordofdarkness141
    @thelordofdarkness141 10 місяців тому +2

    Quality video thanks

  • @maheralazzawi7814
    @maheralazzawi7814 Рік тому +3

    very good

  • @raskomilutinovic
    @raskomilutinovic 5 місяців тому +2

    ODLICNI STE,POTPUNO OBJASNJENO.

  • @courtneyroy270
    @courtneyroy270 Місяць тому +2

    As usall first class, wow what a model, I want one.

  • @smabeinghuman9236
    @smabeinghuman9236 9 місяців тому +1

    You did a good job sir ❤

  • @giwtwm
    @giwtwm 5 місяців тому

    Good day, how would I go determining which valve lash should I use for an engine with aftermarket cylinder heads , aftermarket cam and rocker (motorcycle converted from 2 valves to 4 valves), is there a way to determine which lash should I use as there is no instruction anywhere its a completely self built engine?

  • @davidruiz5383
    @davidruiz5383 7 місяців тому

    Thanks for sharing. Question: so if piston is full visible does that mean that valves are ready for adjustment. (can a light be use to see the piston position ) please correct me if wrong. Again thanks and God Bless

  • @Liv2Throttle
    @Liv2Throttle Рік тому +4

    Nice video sir.... 👍

  • @Jamieip
    @Jamieip 4 місяці тому +1

    you're amazing for these videos, thank you

  • @rabone1968
    @rabone1968 5 місяців тому

    love the video and how you mad it so easey to understand how to set the valve thanks

  • @stevenmcallister2230
    @stevenmcallister2230 7 місяців тому

    Hi amazing way to explain I need some help I have ktm sxf 250cc 2012 it kick starts good runs for 20sec then dies fuel pump great injectors great could it be my valves

  • @afrikagreen6303
    @afrikagreen6303 Рік тому +2

    good on you,,friend

  • @weschaffin
    @weschaffin 6 місяців тому +1

    Love the content! Keep it coming!!

    • @TheRepairSpecialist
      @TheRepairSpecialist  6 місяців тому

      Thank you! Will do! And thank you for your kind feedback. Craig

  • @nerdsofthefist
    @nerdsofthefist 6 місяців тому

    This is great. At least now I can say I u sweat and the process a little more and can now make a more educated decision on whether or not I’ll do this $1000+ job myself or not.

  • @dendriller
    @dendriller 8 місяців тому +1

    Outstanding, Thank you!!!

  • @arthurfricchione8119
    @arthurfricchione8119 Рік тому +3

    Craig that is one sweet teaching aid. Did you cut it apart ? Thanks for sharing. 👍. Artie

    • @TheRepairSpecialist
      @TheRepairSpecialist  Рік тому +1

      Thanks again Artie. Yes I actually videoed myself taking it from an old wrecked mower and making it. Ive put it here on the channel and ive included the link if you want to see it. Thanks again. Craig
      Link: ua-cam.com/video/b78Uh1c8sy0/v-deo.html

    • @arthurfricchione8119
      @arthurfricchione8119 Рік тому +1

      @@TheRepairSpecialist thanks Craig I will definitely watch it 👍

  • @mirceatoader3667
    @mirceatoader3667 5 місяців тому

    Hello,
    The videos posted by you are very interesting and educational, congratulations for the work done.
    I also encountered the following problem with a 4-stroke chainsaw (clone engine after the Honda GX35). When starting from cold, everything is ok, but after a few minutes of operation, not in a very intensive mode, the chainsaw gets very hot, sometimes it stops by itself. Even if it doesn't stop by itself, restarting is very difficult, sometimes it doesn't work at all, sometimes the air filter gets wet with gasoline. In the settings from the manufacturer, the valve distance is set to 0.08 at the inlet and 0.11 at the outlet, I found the outlet at 0.25, I adjusted it to 0.11 but the same behavior. Do you think it's a problem with the carburetor or the existence of fake air?

  • @perryjones8997
    @perryjones8997 3 місяці тому +1

    Wonderful. Thank you so much!!

  • @JnrKiureakia
    @JnrKiureakia 3 місяці тому

    The flywheel will be turn right or left?
    And what are some other options to use if there is no proper tool like feelergage?

  • @christiannagy8417
    @christiannagy8417 3 місяці тому

    You also dont want to set the valve lash on the compression release on these engines.. some of them have one for easier starting especialy on those with a pullstart only.. the exhaust valve opens, then the intake and slightly after the intake, the exhaust valve opens just a hair and that is the compression release!
    On Briggs and Stratton flathead engines there usually is no adjustment or you have to play with some shims!

  • @shanks9362
    @shanks9362 4 місяці тому +1

    Thank you!

  • @tomwarren5258
    @tomwarren5258 2 місяці тому

    Greg, I got a predator 212 that just quit working or running actually so I’ve been adjusting the vowels and adjusting the valves and adjusting the valves. All wants to do is backfire or after fire. What do I do now?

  • @dawnsabin-simpson8938
    @dawnsabin-simpson8938 Місяць тому +1

    Thanks again.

  • @wyattflp6163
    @wyattflp6163 2 місяці тому

    Good video, good detailed information, thanks

  • @jenniferl9603
    @jenniferl9603 8 місяців тому +1

    Thank you so much!

  • @CRM537
    @CRM537 8 місяців тому

    hi i was told by the dealer to not touch my engine...I have a toyota yaris and i believe it has buckets as for lifters.. I can hear a very faint background tok..but goes away the minute i give it some gas. Sounds more like injectors. its a 2011 yaris with very low mileage.

  • @RsiX_productions
    @RsiX_productions 6 місяців тому

    I have a 1999 r6 , carbed . Carbs balanced , bike runs well but there is ticking from rocker area in low revs and also if riding in town slowly the bike loses a bit of oomph .. until i take it out big roads and blast it then the bike runs great again . Could this be a valve clearance issue ?

  • @khupza
    @khupza 2 місяці тому +1

    Thanks for the video

  • @raymondlumbog5452
    @raymondlumbog5452 Рік тому +1

    Bro. i have a problem in 58cc chinese chainsaw when getting heat its hard to start it again .. why? .. sorry for disturbing.. 😁😁

  • @guyhiller5328
    @guyhiller5328 5 місяців тому +1

    Well done 👍👍👍

  • @RMVZ58
    @RMVZ58 6 місяців тому +1

    Outstanding

  • @kennymosireland7069
    @kennymosireland7069 6 місяців тому

    I watched your vid just now..could you alive me in any way, iv been told my tapets space is correct but if I listen to the top of my engine ..i can clearly hear a rattle ir lower tapping sound over on one area , the inlet side, I have used a a stethoscope, to listen, my engine is..push rod.. its a citreon u25 1993.. its driveinging me mad.. is there any way the rod might be worn, and can this part be changed..do you know. Any tips would be so helpful to me

  • @Foolishnessofpreaching
    @Foolishnessofpreaching 3 місяці тому +1

    Thanks

  • @musicmandz
    @musicmandz 5 місяців тому +1

    great video thanks

  • @tarekessed3036
    @tarekessed3036 4 місяці тому

    Great you're really know what you are doing and 👍👍how you doing it

  • @TOOTHPASTE6vevo26
    @TOOTHPASTE6vevo26 7 місяців тому +1

    Thank you sir

  • @johnkuyzvlogmotorbikeandsc4523
    @johnkuyzvlogmotorbikeandsc4523 4 місяці тому

    Whats the proper clearance for small engine 49cc

    • @TheRepairSpecialist
      @TheRepairSpecialist  4 місяці тому

      You need to check with your engines manufacturer specifications in the service manual. If you no longer have this then you can usually find one online if you put your engine make and model in the search engine. Make sure you have the correct manual though. 👍

  • @m1421
    @m1421 3 місяці тому

    Great video.

  • @Ricktofenable
    @Ricktofenable 5 місяців тому

    Thank you so much, saved a mechanic idiot like me

  • @jamiewarbie643
    @jamiewarbie643 10 місяців тому +1

    Yeah video was excellent

  • @RachelAbraham-s1b
    @RachelAbraham-s1b 3 місяці тому

    Very good thanks sir

  • @blazinbrettuk.lionofthetri4564
    @blazinbrettuk.lionofthetri4564 6 місяців тому +1

    very helpfull. God bless you in the name of Jesus bro

  • @frekolamohammed3275
    @frekolamohammed3275 2 місяці тому +1

    Legend 👍👍👍

  • @levigrafton6854
    @levigrafton6854 8 місяців тому

    I do this, but it still taps, like a valve is too loose

  • @petersack5074
    @petersack5074 3 місяці тому

    Piston broke ; happened more than once, growing up as a ' teen ' ager......back '' in the day ''. Drunk - on the side of the road , car won't start....near the Indian Reserve.........ha. So there, RocBoyUniGee 585. .....anyone else, got some old ' stories '...

  • @TalesWarp
    @TalesWarp 9 місяців тому +1

    nc 1

  • @JohnWick-qf6lx
    @JohnWick-qf6lx 5 місяців тому

    🤙🏻💯💚😀

  • @gregtarasinski5516
    @gregtarasinski5516 Місяць тому

    Hi, I cheat
    TDC exhaust
    One open other closed and vice versa
    Also avoids decompressor
    Stumbled across this technique via penny dropping

  • @mattfarley6068
    @mattfarley6068 3 місяці тому

    I need to adjust my valves on a go-kart engine somebody told me it was a lifan 277 cc or he thought it was that engine I don't have no markings on the engine at all so I don't know what to adjust my valves to

  • @marvinmartinez2637
    @marvinmartinez2637 Місяць тому +1

    Thanks