Watched another video where a guy lined up the drivers side timing mark with the camshaft position sensor to access service bolt them removed cams, but there wasn’t 2 holes lined up on the cams inside and removed the cams that way. How will you be able to line back up after ? Asking because I’m tearing apart a 4.7 now and that’s what I did.
When you match the timing marks to open the timing belt the cam pulley marks on the drive side will match but when taking the cam apart remember the EX cam gear has a tensioner to hold the 2 cams together. And there is a hole for 10mm bolt to fix it The drive side is down so the cam is aligned with the 2 mark
The drivers side has two dots to line up, the passenger side just one. This keeps the cams side specific. This answer is not from my experience (soon though,waiting for parts!)but from watching other videos. If I find out differently when I do mine I will delete this response. Update: the left bank cams do line up with the single dots,AS did the right bank. Temporarily putting cam and crank pulleys and belt back on,rotated engine twice, the timing marks (and dots) lined up perfectly
Did lightning up the one dots on the left bank work once put together. All service manuals say to light up the 2 dots on left bank and 1 dots on right bank. I did that but left bank timing is not in alignment.
Whichever engineer had the great idea to put the cam seals inside the engine, instead of it being easily accessible on the outside, like the older non-VVTI engines, deserves a special spot in h3ll on top of a hot coal
You're kidding me right? You have to remove the whole camshaft pair to replace a seal? Who's idea was this and is there a special place in hades for them? I've never seen such a stupid idea/design. If it aint properly leaking, nope.
I got over my surprise and just dug in to bang it out. Actually isnt that bad to do if you're already doing a timing belt and water pump job. Good video on the procedure by the way. @@Autoenginecheck
@@CristianCruz-jf4iwActually when i stopped whining about it and just got to doing the job, it really wasnt so bad. It wasnt hard to line up using some tricks from the toyota service manual. Just make sure to lock the exhaust cam sprocket with a valve cover bolt without the washer or something the same size and thread so the damper built into the sprocket doesnt untension when you remove the exhaust cams or when you install them.
