5.7 engine maintenance video

Great video of the 5.7 engine if anyone is interested.
https://youtu.be/2bsULQcMxlg?feature=shared

 

You know I saw a video of his yesterday. It was him taking about Toyotas best and worst engines. The considers the 5.7 a Honorable mention. I don't think the 5.7 is that bad to not make it to 1 of Toyotas best engines.

 

Can tower leaks (pretty minor), a few broken valve springs (major) and some cam chain tensioners (eventually major) are the only real problems I’ve heard of with the 5.7. Pretty impressive for a 350ci class motor with 400 ft/lb of torque. Slap a few more gears in the trans and could sneak up 2 MPG’s and be competitive efficiency wise.

 

In the above vid, he says the 4.7 is not only one of the world's best engines, it is The Best. While the 5.7 is a glorified version of the 4.7 with some odd changes leading to the problems we all seem to know about...

 

"Thank's Yota707" .... Somehow I managed to miss that video of his? You own a 5.7, or the destroked 4.6, it should be made mandatory viewing. I actually learned a couple of things I wasn't aware of.
Thanks!

 

Gotta admit, watching him tear it down stressed me out some. I’m a DIY by heart, but that’s pushing my limits. Hopefully I’ll never have to deal with chain tensioner or timing cover issues.

 

I think the honorable mention was pretty fair, given just how bulletproof the best engines were. The 3ur is rock solid, but the 5vz, 1uz, 2uz, and 3uz are just on another level. Toyota just makes such solid power trains that being even honorable mention pretty much means better than any competitors' best motors.

 

He does say at the 56 minute mark, there is no evidence the tensioner noise has every caused problems where something breaks or jumps out of place, just an annoyance but yeah many on here don't like those....

 

Answered a lot of questions for me. Thanks for posting.

 

Per Mr. Sierradevil's suggestion it sure would be nice to get some of the redundant and repetitive topic's combined. Any programmer's out there? Probably need a twelve or thirteen year old wiz kid.

 

I have one question that I was hoping someone could answer.. And for the record, I am by no means trying to start yet another trans cooler discussion..LOL At the beginning of the video, I did not see an external transmission cooler mounted on the front of this 2016? Did I miss something or am I wrong in thinking that Toyota only removed it from the 19-21 models?
thanks

 

Pretty sure they had them integrated into the AC condenser by 2016 (still a far better setup than only having a transmission warmer like MY19-21 trucks). I know that's how my 2018 is setup.

I can check the video again to make sure, but have poor service at work, so can't until later. If you see 2 lines coming up from the transmission towards the passenger side of the AC condenser, then that's indeed the setup the truck has.

 

Ok, that makes sense.. I did not know that.. I always thought it was a separate unit (like the 2007's) or nothing (like the 2019-21). I learn something new everyday.. thanks for the info.

 

I guess that kind of makes the theory that Toyota removed it due to the refrigerant change more plausible.

 

You that's the explanation I'd bet on. But still seems lousy of them to not just fit $100 auxiliary cooler and call it a day.

 

Yea, I agree. My main gripe is that they advertised it to have a cooler when it absolutely did not and they didn’t drop the price when they dropped the cooler.

I would have been OK with adding one after the fact (and did), but I believed the sticker when it said there was a cooler. Didn’t find out until after I bought it that it didn’t have one.

Shame on me for believing Toyota.

 

The 5.7 (and 4.6) are completely different designs than the 4.7. The 4.7 has a cast iron block, shim-under-bucket valve system with a timing belt that needs changing every 90k miles.

The 5.7/4.6 are all aluminum (block & heads), have hydraulic valve lash systems requiring no adjustment and cam chains that are maintenance-free. Also, the 4.6 has 310 hp vs. 271 for the 4.7, almost 40 more hp.

I put 225,000 miles on a 4.7 in my 2006 Tundra over 12 years and loved it other than the timing belt issue which I really hated (expensive even when I did it myself). The 5.7 in my 2018 Tundra has been perfect, haven't had to do a thing to it in 85,000 miles and 6 years (except basic fluid and filter maintenance that any engine would require).

Dan

 

I don't get why timing belt motors get so much hate. They only need replacement every 90k miles. Typical Toyota timing belt kits go for around $400. A good DYI mechanic can replace it in 3-4 hrs. And it also eliminates one of Toyota's most common oil leak locations (front timing cover).

 

Thanks for posting for this. Great video and the owner of the truck did post in the comments of it.

Well worth the $5200 he paid for this repair.

The varmint nest was quite a surprise.