Fantastic video. In fact, you introduce to the most common failures of the VVT phaser. Invaluable information. This is the most complete information I've found on internet about how VVT works and most important, the most common fails and why, from the beginning to the end. As student, you've got the point of view for transmitting knowledge, so I advance you'll have a nice professional career. Thanks.
Other than metal clogging the OCV screens, poor oil maintenance building up sludge will do the same thing, sometimes the screens break apart and clog up the oil return side galley and prevent oil flow also. The locking pin hole can get worn out and beveled not allowing the pin to actually lock into place. To visually monitor a slipping problem and not being able to lock down, depending on the valve cover design it may also be noticed that the chain is driving the gear at a constant rate while the cam is lagging behind until the guts of the VVT are forced along with the inner guts being pushed by the outer housing, it's nice to watch this action in slow motion on a video recording. The added pressure of the valve springs is forcing the camshaft to lag behind during a lifting action and more force is needed to push the cam along later in time. Another very nice presentation.
I have a 2007 corolla. it started running rough, dying out with low idle. no codes showed. by chance, I removed the VVT solenoid and cleaned with brake cleaner. reinstalled, and running smooth again.
I have 2012 suabru forester with FB25 engine. Over 300000 km on it. The engine sometimes stalls after HWY speed . And then its crank and no start but after 1 hour its start again no issues . Not fault code no check engine light. I have that happened to me couple of times. I held a starting fluid . Try that once didnt work. I can confirm that I have ignition spark . It sounds like no engine compression . So my main suspect is my VVT phaser . Is Im on the right path for finding the problem ? Thank you for the amazing informative video
Fantastic video. In fact, you introduce to the most common failures of the VVT phaser. Invaluable information. This is the most complete information I've found on internet about how VVT works and most important, the most common fails and why, from the beginning to the end. As student, you've got the point of view for transmitting knowledge, so I advance you'll have a nice professional career. Thanks.
This is excellent. Thank you for an easy to understand explanation of VVT. I did not have a clue. Now I understand the operation. Good job.
Great job! The only one ever to mention the spring role, actually I dissembled my VCT sprocket and didn't know which direction to tension the spring.
Really simple and easy explanation. Great job
Other than metal clogging the OCV screens, poor oil maintenance building up sludge will do the same thing, sometimes the screens break apart and clog up the oil return side galley and prevent oil flow also. The locking pin hole can get worn out and beveled not allowing the pin to actually lock into place. To visually monitor a slipping problem and not being able to lock down, depending on the valve cover design it may also be noticed that the chain is driving the gear at a constant rate while the cam is lagging behind until the guts of the VVT are forced along with the inner guts being pushed by the outer housing, it's nice to watch this action in slow motion on a video recording. The added pressure of the valve springs is forcing the camshaft to lag behind during a lifting action and more force is needed to push the cam along later in time. Another very nice presentation.
Good job explaining the system. Direct and to the point. Not a lot of BS like some videos.
Excellent video thank you for helping our community. Congratulations.👍
Awesome explanation 🙌👍
I have a 2007 corolla. it started running rough, dying out with low idle. no codes showed. by chance, I removed the VVT solenoid and cleaned with brake cleaner. reinstalled, and running smooth again.
شكرا جزيلا سيدي على هذه المعلومات القيمه ,,, لقد سعدت بمروري ,,, تحياتي
Thank you so much for sharing the knowledge.
Very clear and concise
Veey veey informative.
Thanx for your time man.
I have 2012 suabru forester with FB25 engine.
Over 300000 km on it.
The engine sometimes stalls after HWY speed . And then its crank and no start but after 1 hour its start again no issues . Not fault code no check engine light.
I have that happened to me couple of times. I held a starting fluid . Try that once didnt work. I can confirm that I have ignition spark . It sounds like no engine compression . So my main suspect is my VVT phaser . Is Im on the right path for finding the problem ? Thank you for the amazing informative video
Nicely done, Nathan
Thank you very much. Very helpful
Very nice video. Thanks.
Great 👍 you’re a genius already thank
Thank you so much for this explainatry video on vvt. In toyota. Is it okay to block the vvti. at retired state?
Great video 👍
good job brother thanks for explain
Great job 👍
thanks. this is gold
Good job explaining;
Thank you very much.
Good explanation, please is the RPM is calculated
Good information. But how do you fix this problem?
Very informative thank you
nice job
I got one intake valve not closing completely in cylinder one. What could it be? My car is an mk6 jetta gli.
Carbon build up. Damaged valve seat. Exhaust valve bent
How about if the car itself is open loop does the vvt-i works the same?
Good info
Thank you
Nice one
at 11:48 you use a diagram ... could you please give me the reference of this image
❤❤❤thanks
ویدیوت عالی بود
A+ Bro! Hoped you passed!!
Thanks sir
Hi good work.
What is your opinion on the cleaning the solenoid valve on a variable compression automotive ac compressor?
enjoyed Thânxx
Muy interesante
👍