Пікірлер

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  @TyzbabieСағат бұрын

  what adapter have you got on the pump to get to the correct schrader size? I tried a shoebox compressor but couldn't find the correct fittings! 😅

• 
  @fergusonvancouver99213 күн бұрын

  Great video, my 76RG Cardinal failed to retract the landing gear yesterday. The gear motor has a light installed that didn't activate. Is there a way to troubleshoot without jacking the plane?

• 
  @danmaggart19414 күн бұрын

  How do you get the rocker arm and shaft back in? Thanks for the vid

• 
  @JK-rv9tp12 күн бұрын

  I made my own dynamic balancer using an accelerometer and optical sensor from Amazon, a tablet app, and 2 channel HANTEK oscilloscope that uses a tablet or laptop's screen. It produces a sine wave from the accelerometer and a pulse from the optical sensor and when I'm at the RPM I want to measure, I do a screen freeze and shut the engine down. I measure the difference in milliseconds from the peak of the sine wave to the start of the pulse, convert to a ratio, and multiply by 360. I don't get an IPS result (I can only measure raw millivolts from the accelerometer), just a sine wave showing fewer millivolts amplitude. I ended up with about 20 grams on the ring gear of my Lyc O-290 after 3 tries which produced a sine wave with just noise, no discernible sinusoidal pattern. Significant improvement in the cockpit, and I gained about 100 RPM at the same manifold pressure with a fixed pitch prop. I think remaining vibration I still have is from the engine's torque pulse rocking couple.

• 
  @ttmich15 күн бұрын

  Thanks for this educational video. It helps me to understand what the stick valve problem is, how to fix it. I am now more conscientious in leaning the engine while taxiing! Is there any product that dissolves and cleans the carbon deposits to prevent the stick valve problem?

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  @williamsaldanah355416 күн бұрын

  I’m an auto mechanic and find it amazing how you did that without putting the head!!

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  @lawrencecarlson242517 күн бұрын

  Good stuff!

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  @Alex-md5svАй бұрын

  compression testing should be done with 2 people.

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  @KiplangatmutaiАй бұрын

  That was terrible way in terms of safety

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  @KerryWhoАй бұрын

  I forgot to post that that is for only SKILLED TECHNICIANS

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  @KiplangatmutaiАй бұрын

  @@KerryWho As a quality Auditor, I don't think, there is a special group of people who are allowed to risk their lives because they are skilled, safety is safety, anyway, maybe that's how you do things over there 😉

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  @KerryWhoАй бұрын

  Surely, I have avoided imminent death for the past 40 years. Also, there is not a single causality in the hundreds of people that I have instructed. Please post your own video on how you think it should be done.

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  @KiplangatmutaiАй бұрын

  @@KerryWho sorry, maybe FAA will gain interested with your skills

• 
  @KerryWhoАй бұрын

  You probably need a third person to write down the results.

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  @michaelsamson3276Ай бұрын

  You can also jamb a common screwdriver between the valve and the rocker.

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  @LTVoyagerАй бұрын

  This is a great example of how NOT to do this test. Keeping any part of your body in the prop arc with more than 20 psi or so in the cylinder is asking for trouble. There is simply no reason to do that. If you have the prop at TDC, it isn’t going to move under 80 psi. If you don’t, it may well move and you don’t want to be in the way.

• 
  @davechapman7735Ай бұрын

  excellent tutorial thanks Sir. best wishes NZ

• 
  @stringfellowhawk3392Ай бұрын

  so you started with a strut with no oil in it. How did you get the old oil out of the strut?

• 
  @namewitheldАй бұрын

  Any reason this wouldn't work on the larger Continentals? Like the 520?

• 
  @pritchettaviation1120Ай бұрын

  Great set-up, thanks for sharing!

• 
  @deswesl2 ай бұрын

  Truly appreciate you sharing your knowledge and experience.

• 
  @09djhurd3 ай бұрын

  Man I’m getting ready to go look at a 310j, now I’m kinda nervous about it. It has over 4K hours

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  @kenrobba58313 ай бұрын

  Good to see the Eighty-Five Hundred line has been set aside; the BEST with this new LINE.

• 
  @billhawkins69593 ай бұрын

  How can you be sure of the gauge from the cyiinder when they both read the same? A new gauge is not that expensive. I wouldn't trust a guess on it.

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  @KerryWho3 ай бұрын

  The tester has a calibrated orfice between the 2 gauges. When not connected to the spark plug adapter the hose end is sealed allowing a comparison of the gauges.pressures.They should be close to the same. A small difference will not affect you deciding whether the cylinder tested is acceptable. It was not my intention to show the theory of how the tester is designed. I could make video showing the difference in reading using a tester designed for large cylinders compared to small. Most of the time you don't even have to look at the gauges to tell a cylinder is no good, air whistling out the exhaust little effort to hold the prop from rotating.

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  @Nord32023 ай бұрын

  Excellent tip when the lifter is full of oil.

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  @ricardocotte44843 ай бұрын

  Thanks for sharing. I'm under the impression that you're not a backhoe mechanic but am greatly impressed by your knowledge and drive to get this job done. I do have a 310sj and this is one of my most feared things along with having to pull the engine off the machine. I wonder how much it cost you and can't imagine how much it would be if you had to take it to a JD Service dealer.

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  @KerryWho3 ай бұрын

  I mainly work on airplanes but 40 years I tried just about everything including heavy equipment. I kind of enjoy moving dirt. I have a JD 550H dozer and just got Hyundai 450 excavator. Still looking for a large dump trailer I can pull with my tractor 🚜 and big compactor. Cost of parts for planes are crazy I bought a cessna 150 that needs a crankshaft. $9,000 US for a used re-certified one.

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  @ricardocotte44843 ай бұрын

  Where's Part 3? Did you get to run the 310sj again? I'm pretty sure you did. Thanks

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  @bobmazone44404 ай бұрын

  Good video, thank you for sharing your tricks with great explanations

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  @michaelbevan32854 ай бұрын

  How much oil goes in?

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  @cubtractor4 ай бұрын

  If you push the other button it averages the balance and you don’t have to watch it and remember it.

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  @lbkducks4 ай бұрын

  What is the likley cause of a sticky valve. What do you recommend to prevent this from ocurring. Running as lean as possible? Additives? What would be the likely cause if it is a recurring problem?

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  @sigitagusprasetyo69624 ай бұрын

  What is maintenance doing ,when valve clearench over limit gap???

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  @KerryWho4 ай бұрын

  On lycoming engines the clearance is corrected by changing the push rod. They are available in different lengths. Check out the lycoming service letter on valve clearance. Continental engines have much larger acceptable clearances and are rarely out of limits.

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  @markpracy4 ай бұрын

  Very good

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  @seanfallon90084 ай бұрын

  What about taking measures to prevent engine start?

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  @davidalvarez41512 ай бұрын

  Like taking all the spark plug leads off? Kinda like he said in the first 3 seconds?

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  @longeronАй бұрын

  As mentioned, ignition leads are off, and also sparkplugs were removed (notice he can rotate the propeller effortlessly).

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  @kentkjr42365 ай бұрын

  Super thank

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  @ronwise43805 ай бұрын

  Compressed air to hold valve in place. That's how I have replaced valve seals on automotive engines. Wondered why in aviation everyone seems to use the rope trick. Would it have been a good idea to lap the valve while you were at it?

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  @Hooknspktr5 ай бұрын

  A good trick shown to me by a mentor that taught me the "rope trick" is to tie dental floss around the keeper groove on the valve. Push the valve in and fish the floss out of the upper spark plug hole with a piece of safety wire with a small hook bent on the end and pull it up by the floss to clean the stem. After cleaning the guide when the valve is back in the cylinder bore, fish the floss back through the guide and it usually pulls right back in.

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  @user-mp8er1ds9xАй бұрын

  Blow air into the cylinder through either hole (spark plug or guide) to blow the floss out the other hole.

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  @nickm7645 ай бұрын

  very interesting and pretty easy, thanks for sharing.

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  @joesilverbliss17215 ай бұрын

  Neat trick. Very clever.

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  @midgetrace6 ай бұрын

  Nice job I did that a few times in the 80s when my 150 was doing traffic reporting around Boston. They flew it 5 hrs a day slow flight so the 100 LL plugged up the valves and spark plugs regularly. I cut 2 fingers off a 4 finger pick up tool went threw the bottom plug hole.

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  @midgetrace6 ай бұрын

  Next time try pushing about 6 feet of cloths line in the spark plug hole and turn the prop until it holds the valve in place. Works even if the valve is bad

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  @tropicthndr6 ай бұрын

  Do you shake your customers hand with your right hand covered in very infectious warts. Yuck such a turn off.

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  @KerryWho6 ай бұрын

  Thanks for the diagnosis Doctor T. You better go back to school. Too bad my skin cancer is not contagious so I can't spread it to your chanel. Ops there is no content to spread to, I think I can guess why.

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  @otiselevator77386 ай бұрын

  Add four ounces of Marvel Mystery Oil to each ten gallons of gasoline in fuel tank. You will never stick a valve again. This has been a sure bet for almost a hundred years. ‘costs almost nothing.

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  @maximolopezsr93997 ай бұрын

  A Compression Test '' is the pressuse elevated by it self thru Cylinder Rotations '' who ever continuing ''..

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  @KerryWho6 ай бұрын

  Yes you are absolutely right if you want to be that picky. In the aviation world we have been using the term compression test and diffential testing interchangeably. I guarantee you its not that we uneducated or don't know the difference.

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  @maximolopezsr93997 ай бұрын

  I must informed this Gentleman ' that what he is doing Is Not Compression Test,,, What this Gentleman is doing is a Differencial Cylinder test ...I have a conversation with A Continental Engeener ..he also was wrong Educated

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  @pi.actual5 ай бұрын

  A&P mechanics know exactly what it is. We call it a compression test just to tweak people like you who think they know everything. BTW your spellcheck ain't working.

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  @robertwilson40477 ай бұрын

  Waste of time, the guide is worn and will get stuck again. This is only a good technique to get a airplane back home. Not at annual, needs to be removed and repaired properly

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  @KerryWho7 ай бұрын

  Worn guides are loose and affect the valve contacting the seat correctly. Sticking valves, is a very common problem running an engine on fuel with way more lead than it was designed to use. Years ago Lycoming issued a service letter to check the clearance and ream as necessary every 400 hours. I have been doing this for over 40 years and never had a issue after reaming a guide, in fact I have never had to ream the same cylinder again after years and many hours of operation.

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  @macmccune216 ай бұрын

  ​@@KerryWhoin your experience, when a valve gets sticky like this what are the odds the other valves need reamed?

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  @KerryWho6 ай бұрын

  @@macmccune21if it was lycoming I would definitely check all others. Continental seems to wear the guides more often than sticking. To be on the safe side it is definitely recommended to check them all.

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  @robertnickell26107 ай бұрын

  I pulled the hydraulic tank. We have a crane and there are only a few hyd hoses. My trans was so covered in old dirt and oil I had to take an air chisel to get to the bolt heads.

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  @robertnickell26107 ай бұрын

  Thanks for the advice. I pulled a 210K trans today, with help from your video. Mine is just the o’ring on the outside of the pump. I will check my converter to pump fit very closely.

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  @dmitrysmirnov91887 ай бұрын

  Nice video! Reminds me of a joke about former gynecologist looking to become a mechanic, who took the engine apart and then built it together -- all through the muffler!

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  @whoanelly737-87 ай бұрын

  nice

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  @reyesben7 ай бұрын

  Well done

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  @YamahaC7SRG7 ай бұрын

  Nice! Thanks!

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  @monteking47418 ай бұрын

  The Service Manual says to remove the spring pulling aft on the lock arm before checking locking forces. That makes a big difference in the final setting. Even though your gauge said you had 19 pounds of down lock force, I can tell by how easily you pushed the lock arm back into locked position that your locking force is too low, probably down around 10 pounds. And, you're only half done. You also have to do the same pull test for the uplock force.. One of the challenges with this system is getting both the up and down locking forces within the 15-20 pound range. There are lots of little tricks to getting both settings right.

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  @KerryWho8 ай бұрын

  Yes you are correct if you are doing a rigging of the gear you must remove the spring. I am just doing a quick check showing the procedure. You must always follow the manual. Every time I have one on jacks I check the locking force just using my feel to see if it needs a complete rigging. Most Cardinals I have come across do not meet specification and most are missing the rubber bumper. Cheers

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  @oneiam15338 ай бұрын

  I guess you don’t use the dial indicator….

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  @maheralazzawi78148 ай бұрын

  very good