How to Replace VVTI Gear O-ring on Toyota 2UZ-FE 4.7L V8 | Lexus GX470 LX470 | Tundra | 4Runner

How to Replace VVTI Gear O-ring on Toyota 2UZ-FE 4.7L V8 | Lexus GX470 LX470 | Tundra | 4Runner

We replace the VVT-i Cam Gear O-ring with a new Viton O-ring due to age and brittleness. This was causing an oil leak after I changed all the cam seals and valve cover gaskets. The last piece of the puzzle was the O-ring which is technically not serviceable according to Toyota.
I used a generic eBay set of O-rings which cost $15 but were kind of small and the rubber was soft.
I found better viton set for same price but for QTY 10.

The O-ring is a 151 90A Durometer 3″ ID, 3-3/16″ OD, 3/32″ width.
Amazon – https://amzn.to/41h6rUN
They are also available on McMaster-Carr but more expensive with shipping.
You will need a 5-point security, 30 IPR bit to unscrew the bolts
5-Point IPR Torx Set – https://amzn.to/40IgW3i

Other detailed Youtube Video: https://youtu.be/blqBJe4lX5s
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