This video focuses on how to find TDC on any 4-stroke engine. That should be most car engines. All you need to do is find which cylinder is number 1 and do the following procedures for that cylinder. I am simply a medical student/Anatomy professor who just has an interest in cars and making videos. Check out my Human Anatomy and Physiology Videos under my other username: ProfRoofs
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Hey sorry for the late reply… and I'm glad I could help! That's a pretty diesel truck.. do you take it off-roading? How is it running 2 weeks later? haha
Thank you. I actually am an Anatomy & Physiology professor and med student now. I make videos mainly on A&P and if you know anyone who needs help I have another channel under a different username (ProfRoofs). I figured if I could figure out the human body I could star to figure out a car. I appreciate your kind words. Hope everything is well!
Hi! I would like to thank you for a brilliant tutorial! I found it really professional and comprehensive. Great job you've done! I always tend to do repairs myself and rely on youtube to look for best practices. Needed to find TDC and your video answered all my questions, so I don't need to look for other clips. Many thanks!
Great Video. My friend you really helped me out on my project. Looking forward to more of your videos. Thanks.
Thanks for the vid!!! I am in a situation where I rotated my engine without the timing belt on so now everything is whack!!! But now, at least, I have somewhat of an idea of how to get things lined up on the compression stroke. I had no idea of how to try to find which position my camshaft would have to be in in relation to my crankshaft. I think this video just helped me a bit. Thank you!!!
You're welcome and glad I could help. If you know anyone going for nursing school or learning Anatomy & Physiology then please direct them to my other channel with name (ProfRoofs). Thanks!
Thank you friend for the kind words. I currently broke a vertebra playing ice hockey so it will be a while until I can get some videos out because of my back. I also got another channel (ProfRoofs) that I mentioned below where I teach Anatomy & Physiology. Thanks for the encouragement!
You're welcome. Sorry for the late reply. I've been out of the country and in the hospital, but recovering. How did the job go or are you still working on it??
@doctaroofy
Thank you for taking the time to make this video, it was very educational and helpful. I'm going to be replacing my timing chain very soon and want to get everything right before I jump in. Thanks again
thanks alot for this demonstration i like the way you explain thanks again
e up about evert 10 revolutions of the crank depending on the lenght of the chain
put your thumb on the cylinder and have a buddy crank the engine till your thumb goes up
On some engine(interference) you need to be sure on the correct direction of rotation and be sure not to rotate the wrong direction when locating TDC.It can damage the engine.
Great vidoe!
So fine Doctor ..thank…RAFAEL
Just what I was looking for! I worked on Piper single engine aircraft, and I used the propeller to rotate the engine to find TDC while using the "hand methed" you demonstrated.
nice! just what im looking for, thanks
ONE OF THE BEST VIDEOS IVE SEEN. GREAT EXPLAINING DOC!!!
you should never put anything down the cylinder it can damage the delicatet surface of the piston head and put dirt in to the piston chamber and that can damage the piston rings eventually leading to the need to tear down the engine and having to overhaul and hone all cylinders. it will burn oil and cause extream fatigue to the metal of the engine block
Great video very helpful.
Thanks man, i have a test on this tomorrow and this helped a lot
Nice job explaining tdc. Thanks!
Hi Doc. I am a student and very much interested in IC engines.
Allow me to congratulate you such brilliant hands-on video.
However, if you allowed me, I would like to ask, what about set timing few degrees ATDC? I have read about that, but just not sure i fully understood. Is it engine specific? Correct me if i am wrong, on your video set the timing right at TDC, right?
I just wanna say, that as far as dropping in a distributor when you're at TDC you may have to turn the crankshaft clockwise a little to align the timing marks on your harmonic balance and timing cover. This is one of the best video tutorials explaining TDC and compression versus vacuum ( exhaust stroke ) thanks !
Ur smart bro great video just to touch bases and refresh my mind
Kiki. is a dumb ass I always do this trick works all the timing
So if my camshafts are out, how do I find TDC?
your gonna be one heck of a medical professional!
so for any engine the valve have to be close
you have to use A real strong light to see the dark blue links
This young man is great at explaining what to do and not to do..Lots of help !!. great job young man !! sure you will succeed in all you do !!
Very good video indeed.
But I think the Power Stroke is on the way down after the the spark ignites the fuel air mixture.
Excellent information mate, yes those pushrod/valve bumps on the camshaft are called lobes not journals. Journals are on the crankshaft, there are main bearing journals and connecting rod journals. But keep the vids coming cheers.
Yes as you said the number one piston needs to be at TDC on the compression stroke when both valves are closed then to fit your ignition leads you need to look where the rotor button is facing in the distributor relative to the fitment of the distributor cap then you set your ignition leads in a clockwise direction according to the engines firing order for example on a 6 cylinder 153624.
Would it start if it's not on tdc
One heck of a job with all the explanation you gave… Thumbs up for sure..I've done this kind of work since I was 17 I'm 46 now and have never heard some one explain it the way you did,Awesome.. Keep it up and you'll have 2 professions… Money,money,money!!!! Lol.
Appreciate your time and effort in making this video!
Thank you. Good job making this video.
best so far. Thanks man..Keep it up!
Great video. I thought i had marked TDC clearly before i took everything off but apparently not. Hopefully, tomorrow, by following your directions, I can find it again so I can finish replacing my timing belt. Thanks tons.
Good job
Amazing !
fantastic explanation and with footage.
so BTDC could be determined on either the exhaust or compression stroke, it wouldn't matter
I acutely did this on my Jetta. They had mark on the motor but they were all off. I used a antenna from my rc controller to find TDC. Car runs great.
Brains unlimited , Thankyou.
Excellent, good Job.
Nice explanation! It was very well done and helped me to wrap my head around finding TDC. Thanks man! Thanks for sharing, and keep up the great work in whatever you do.
Those are "lobes" on the cams that push the valves. PLEASE put two drinking straws together to measure piston height!