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How to perform a cylinder leakdown test: Demo on Harley Shovelhead EVO TWIN CAM

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Performing a cylinder leakdown test is crucial to determining the mechanical integrity of an engine. I'm demonstrating this on a Harley Davidson Shovelhead, but the same procedure applies to any four-stroke engine (4 stroke). Click the links to playlists: (entire list link is the last one)
Leakdown Tester:
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Опубликовано:

5 сен 2024

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Комментарии : 26

@COMPUTERTECHATHUTCHTECH 2 года назад

as an educator myself, I have to say that this is a FANTASTIC video. Very well done. I have to do a leakdown test on my 52 pan chopper, used this as a refresher on how to do it.

@How2Wrench 2 года назад

You rock! Best way to help us back is joining or grabbing our T-shirt! Support links and gear below! Awesome and thanks for commenting! Smash the subscribe button (thank if already a sub!) Have you seen our "RU-vid Trained Support Shirts? Great way to "high five us" goodfellasmerch.com/collections/how-2-wrench/products/support-shirt Join this channel to get access to perks: ru-vid.com/show-UCBhM8DCKnT3qXwTW0eToyCgjoin -Daily MEMBER FIRST COMMENTS ANSWERED FIRST -Live Q/A video chats -Wonder if we have a video on your need? Members can request content links! -Full Access to the ENTIRE 700 video library -Member-Only FREE tool giveaways Just want to say thanks quick to support us for this information and our work saving you money? Give us a high 5 here: www.paypal.me/how2wrench Got an emergency and your head is about to explode from frustration or fear? Get Shane’s cell here: how2wrench.com/ols/products/techline-one-on-one

@Marillionado 8 лет назад

Hi again Shane. Just a thought. For those out here who don't have access to a leakdown tester, what do you think about the old school method of pouring some engine oil inside the cylinder, through the spark plug hole, and then measure the compression against the previous measure, before putting the oil in. If you get an improvement in PSI, wouldn't this tell you that there some leaking taking place in the rings? If, on the other hand, no PSI improvement was to be found after pouring in the oil, the leak would be in the valves. Granted the PSI was below engine specs to begin with. Naturally this won't let you check leaks other than rings or valves, like the one coming from the crank, like in the video. Thanks again for yet another very educational video. Hope you keep em coming. Best regards.

@johncasor9698 6 месяцев назад

head gaskets leak too... and yes old school is good. but for $50 you can get a leak down tester come on...

@johncasor9698 6 месяцев назад

My owns a motorcycle shop and just told me he just keeps piston on BDC to check leak down and no worries about piston jumping around , he said it works just fine... no need to have piston on TDC. if it leaks it leaks... but i always use my snap-on tester correct by having piston at TDC...

@tomrohn8607 Год назад

Best Harley videos..ive seen yet

@How2Wrench Год назад

Thanks Tom. Please see our HD playlists for them all too! Shane used Harleys for a lot of demonstrations throughout this channel too. Glad it helped! You rock for commenting! We will let Shane know! You can give him a high 5 here: www.paypal.me/how2wrench Another way to help us back is joining or grabbing our T-shirt! Support links and gear below! Awesome and thanks for commenting! Smash the subscribe button (thank if already a sub!) Have you seen our "RU-vid Trained Support Shirts? Great way to "high five us" goodfellasmerch.com/collections/how-2-wrench/products/support-shirt Join this channel to get access to perks: ru-vid.com/show-UCBhM8DCKnT3qXwTW0eToyCgjoin -Daily MEMBER FIRST COMMENTS ANSWERED FIRST -Live Q/A video chats -Wonder if we have a video on your need? Members can request content links! -Full Access to the ENTIRE 700 video library -Member-Only FREE tool giveaways Got an emergency and your head is about to explode from frustration or fear? Get Shane’s cell here: how2wrench.com/ols/products/techline-one-on-one

@steventucker2415 7 лет назад

Thanks for all your awesome and insightful videos.

@How2Wrench 7 лет назад

Head over to the new website and subscribe to the newsletter to never miss a video or newsletter! how2wrench.com/contact/ If I can ever be of service to you, here is a video explains how to connect with me. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vjvmB01ebcs.html Keep Wrenching, Shane Conley Instructor/Motivator/Motorcyclist www.how2wrench.com Did you like this free video and hope to see more? Would you just like to say thank you with a donation? Click www.paypal.me/how2wrench

@camshaftP16 8 лет назад

Good info here, what I will add to this is I use my ultra sonic leak detector to zero in on finding any air passing instead of the soapy water.

@How2Wrench 8 лет назад

Cool tools out there! Thank you for sharing. What brand do you work with?

@camshaftP16 8 лет назад

Have a Robinair model, not to expensive and work well on vacuum and pressure leaks, also can find bad bearings with it when the probe is installed, handy tool for sure

@dalenolden1875 Год назад

Do it correct the first time. You're the guy.

@How2Wrench Год назад

Nice...Thanks Dale! Appreciate the kind note and we will share with share.

@surgingcircuits6955 2 года назад

I understand how compression rings expand with compressed air getting behind the ring and pushing out to seal the ring race with the cylinder wall, but the fact that the ring is split and not continuous, I still don't understand how there's a seal.

@johncasor9698 6 месяцев назад

There is a ring which is continuous i have them on my honda race car engine 1994 GSR B18-C1.. THERE called Total sealed power rings out of Arizona ... and what is happening with the rings is the gap you are talking about is only .004 gap per inch okay. so a 4 inch piston would have a max of .016 gap. now the gap is rotating around they say so it will change location on the piston and car engine pistons have 2 rings and a oil ring too... but what is also happening is the pressure from the compression will get behind the rings and push them away from the piston to seal them to the cylinder walls remember that... now i have seen rings on motorcycles that have a locator pin in the ring land that touch's the ring and keeps it from moving or spinning around the piston, i have that pin in the piston ring land on my weed eater because i burned up the piston and had to install a new piston and i saw a tiny pin to line and stop the rings from moving. crazy...

@alazanjoe 2 года назад

Good Video and perfectly explained follow up overview and details. Beginner Home Shop Owner Thank You

@How2Wrench 2 года назад

Thanks for watching! You rock! Best way to help us back is joining or grabbing our T-shirt! Support links and gear below! Awesome and thanks for commenting! Smash the subscribe button (thank if already a sub!) Have you seen our "RU-vid Trained Support Shirts? Great way to "high five us" goodfellasmerch.com/collections/how-2-wrench/products/support-shirt Join this channel to get access to perks: ru-vid.com/show-UCBhM8DCKnT3qXwTW0eToyCgjoin -Daily MEMBER FIRST COMMENTS ANSWERED FIRST -Live Q/A video chats -Wonder if we have a video on your need? Members can request content links! -Full Access to the ENTIRE 700 video library -Member-Only FREE tool giveaways Just want to say thanks quick to support us for this information and our work saving you money? Give us a high 5 here: www.paypal.me/how2wrench Got an emergency and your head is about to explode from frustration or fear? Get Shane’s cell here: how2wrench.com/ols/products/techline-one-on-one

@mikebielen7057 7 лет назад

as a 30 year harley wrench you test the motor cold then hot i have seen shovel heads with 25% leak down get it hot 6 % leak down know why it had low silicon pistons lot of piston running fit ! there are a lot of factors

@c79891 10 месяцев назад

EXCELLENT

@How2Wrench 10 месяцев назад

Cool. We love sharing comments like this with Shane. Thanks for sharing and the added value to our wrenching community. Keep them coming. Join the channel. Best $1.99 you'll spend to access all 800 vids and Shane Daily! Smash the sub and like please. Throw Shane a high five donation, channel membership or merch for saving you $$$$$$$ Links below to support more for this work! 🙏 You rock for commenting! We will let Shane know! Want even more? Best $2 you'll ever spend...Join this channel to get access to perks: ru-vid.com/show-UCBhM8DCKnT3qXwTW0eToyCgjoin -Daily MEMBER FIRST COMMENTS ANSWERED FIRST -Live Q/A video chats -Wonder if we have a video on your need? Members can request content links! -Full Access to the ENTIRE 700 video library -Member-Only FREE tool giveaways Ways to support or high five How 2 Wrench! Thank you in advance. YOU MOTIVATE US TO DO MORE! 1. Smash the subscribe button (thank if already a sub!) 2. Have you seen our "RU-vid Trained Support Shirts? goodfellasmerch.com/collections/how-2-wrench/products/support-shirt 3. High five donation: www.paypal.me/how2wrench 4. Got an emergency and your head is about to explode from frustration or fear? Get Shane’s cell here: how2wrench.com/ols/products/techline-one-on-one

@ashvinvaria210 5 лет назад

Nice..

@30Higgins 6 лет назад

Would it be possible to hold the engine in TDC position with a gear on and rear brake applied ? im am an A&P mecanic so for us it's so easy to hold the propeller ;-)

@How2Wrench 6 лет назад

If the brake was working...:) You can reach me personally @ how2wrench.com/contact/ Please show your support by a membership or donation to get the help you need beyond those popular free videos that have saved you so much money and grief! You can say thank you here: www.paypal.me/how2wrench

@matheusmoura503 Год назад

Hey!! Do you have an email where I could contact you? I'd like to have your help to clear some doubts!

@How2Wrench Год назад

Sure do. Use the contact link on our website www.how2wrench.com W ehave multiple options for your training needs. Quick or deep 1:1 Glad it helped! Thanks! Join the channel. Best $1.99 you'll spend to access all 800 vids and Shane Daily! Smash the sub and like please. Throw Shane a high five donation, channel membership or merch for saving you $$$$$$$ Links below to support more for this work! 🙏 You rock for commenting! We will let Shane know! Want even more? Best $2 you'll ever spend...Join this channel to get access to perks: ru-vid.com/show-UCBhM8DCKnT3qXwTW0eToyCgjoin -Daily MEMBER FIRST COMMENTS ANSWERED FIRST -Live Q/A video chats -Wonder if we have a video on your need? Members can request content links! -Full Access to the ENTIRE 700 video library -Member-Only FREE tool giveaways Ways to support or high five How 2 Wrench! Thank you in advance. YOU MOTIVATE US TO DO MORE! 1. Smash the subscribe button (thank if already a sub!) 2. Have you seen our "RU-vid Trained Support Shirts? goodfellasmerch.com/collections/how-2-wrench/products/support-shirt 3. High five donation: www.paypal.me/how2wrench 4. Got an emergency and your head is about to explode from frustration or fear? Get Shane’s cell here: how2wrench.com/ols/products/techline-one-on-one