Toyota Valvematic Valve Timing
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- Опубликовано: 12 сен 2024
- Toyota Valvematic Valve Timing.
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Toyota joined the electronic valve timing and lift club in 2008, with its Valvematic technology. Compare with BMW Valvetronic, and Nissan VVEL, Valvematic is different in some aspects. Its construction is relatively simple, It is compact and does not increase the height of cylinder head. It improves the power output by 10 percent, while reduces in 15 percent, the fuel consumption during regular driving. Most importantly, it adds little inertia and friction, thus, does not compromise top end power.
Valvematic employs an intermediate shaft to achieve continuous variable valve lift. The intermediate shaft, has an actuating geared member rocker arm, like for each cylinder. Each actuating member rocker is made of two finger followers, and a roller bearing. The finger followers can rotate in relation to the roller by means of internal gear threads, and an electric motor attached to the end of the intermediate shaft. Also very important, is that the gear threads of the roller rocker, and finger followers, are in opposite direction. This mean that when ...
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That's correct, Toyota on most systems still keeps a throttle valve, but holds it open at all times. Thanks for sharing.
Thank you for explaining this, Stephen Hawking.
We appreciate that, keep posting and sharing.
Thank you for taking the time to upload this video. Helped me out.
At this point in time almost all of them. Even the lower ended models if they don't have it already are about to get this system. Often times you don't even know it's there unless you read the specs for the car or open the hood and see the decal for it.
Sure, for the most part Toyota still employs a butterfly valve, but it's held open at all times. Thanks for posting.
It means you diagnose it once, repair it once and that's it. You don't throw parts at it or play a guessing game. Makes sense.
I can tell you this, from the moment you decided that someone else is less than you, you sold yourself short. There are no techs at dealerships, just warranty parts changers. The independent repair shops account for 75% of repair shops, some are bad, but most are good people who see real world diagnostics. Quit your dealership job and then post back with more good news. Thanks for posting.
sera GENIAL que lo traducieran al español pero desde ya es muy muy interesante y didactico el video pues se entiende casi todo.saludos desde PERU de un suscriptor Freddy Puma Gracias.
Saludos amigo... www.paypal.com/donate/?hosted_button_id=F9W5VPHTGWBV6
ok sir
I don't get how just having opposing helical gears on the same shaft would make it so that when you turn the shaft clockwise the roller followers turn counter clockwise while the roller followers turn clockwise. If both gears are attached to that shaft they will turn clockwise, and if both gears are nested within the rocker and the followers then the motion will be in the same direction. Even in the animation it shows the middle helical gear rotating in the same direction as the other gears. So how is it that it can change the direction?
If I understand it correctly the intake and exhaust controlled independently throughout the rpm range?
Thanks for sharing. Although I disagree...
Can the valvematic unplug and have the engine still running?
Maybe
why did you use a computer for the speech and why did you use velvematic instead of valvematic?
Have no idea what you're talking about.
In the film the text "velvematic" is used and the voiceover sounds like a computer generated voice.
No no.. We'll have no of that here...
Remco Meeder is absolutely correct on both points.
ADPTraining ... Are you the computer?
Hello,
What engines have Toyota/LEXUS employed this system of VVT on?
I LOVE IT
Bonsoir j' ai les problèmes d accélération avec ma Toyota Avensis 2010 moteur valvematic par moment elle perd la puissance je ne sais comment résoudre ca
see where this is wrong is that the rockers only rotate, they do not move up and down like your animation, you got me very confused, but you are the only one explaining the helical gear "threads" where others leave you to guess how they change the relative angle
Very clever!
I would love to know what "A one shot Diagnostic and Repair" actually means lol classic
I have converted my 2zr from automatic to manual but having a problem with the rpm keep hugging up. What can I do to fix that problem?
Ok
What is the use of the valve lifter in this case? It seems like it is not doing anything
THis is valve timing, not lift. Most brands now use 1 or 2 stage valve lift, but that's another video.
according to the video,the valvematic system varies lift,and the timing is controlled by the VVT-i system not talked about here.
Hello, my famous chronic problem ??? I have an Auris 2 year 2014, petrol 1.6, Auto CVT type box, after repairing my box, I took my Auris out of the garage exactly on October 19, 2022, I drained the engine just 8 days later, so that driving about 3 weeks after October 19, I had 2 check engine lights on and the ESP, the diagnosis on the scanner gave 2 error codes p264A and p1047, I changed the oil, both lights still on, from time to time they go out but often on and with the same error codes, no one has been able to dissect this phenomenon, my vehicle is almost always in degraded mode, here I am, I find myself in a dark impasse, if please if someone has already experienced this phenomenon, he can guide me, thanks again the team
👍
can this be used in high rpm applications
It is used on Lexus, so if they think it's good enough for them, then yes, I'd say so.
is this vtec or a copy of somthing else
Rotating of intermediate shaft is not correct in slow RPMs!
অসংখ্য ধন্যবাদ
Ok
The valves become the throttle by there controllability
As I agree with the fix it right the first time Comment...I get the impression you have no clue on real world or diagnostics, some times it isn't as easy as just reading a code and replacing a part.
Us Toyota techs and MDT's (such as myself ) are getting screwed on diagnostics by Toyota under warranty to diagnose this crap....bet it is still .2 scan tool diag. what else do they expect ...with that mentality YEP Throw A Part At It!
Velvematic
Yeah
The last comment is not needed for explanation and is very snarky.
Ok
Перевод где по русски
Yes
Conclusion = valve matic better than vtec hahaha
hate that music!
soo its an explanation of how crap the engines are? almost 10 years and they still use the same crap engines and same crap 4 speed auto trans in a time where 6 speed trans and 9 speed trans are taking over?lol.
If that's what you think then you totally missed the point my friend. In your case, this video was for naught.
oh, i didnt miss it. its there.
If I understand it correctly the intake and exhaust controlled independently throughout the rpm range?
yes, that is correct...
Hello, my famous chronic problem ??? I have an Auris 2 year 2014, petrol 1.6, Auto CVT type box, after repairing my box, I took my Auris out of the garage exactly on October 19, 2022, I drained the engine just 8 days later, so that driving about 3 weeks after October 19, I had 2 check engine lights on and the ESP, the diagnosis on the scanner gave 2 error codes p264A and p1047, I changed the oil, both lights still on, from time to time they go out but often on and with the same error codes, no one has been able to dissect this phenomenon, my vehicle is almost always in degraded mode, here I am, I find myself in a dark impasse, if please if someone has already experienced this phenomenon, he can guide me, thanks again the team
Retrace your steps and find what you did wrong. Could just be a Reflashing issue.