Tundra engine recall - interesting news

No I don't.

I'm not trying to argue with you but it could be from silver solder used in the oil cooler.

 

That starts increasing around 20k miles? Not arguing - nothing else makes sense as the source of silver. It isn’t wash out - it starts at zero and climbs.

https://www.tundras.com/threads/official-oil-analysis-report-thread-only.143958/

 

I guess my sarcasm wasn’t apparent enough.

 

Silver might live in the solder used to make things like an oil cooler. I am not too sure if we have one in of these in the V35 but that sort of thing can contain silver.

 

I'm a new guy here and I don't want to rock the boat.

Thanks for responding.

 

Found this video of a truck in disassembly for the repair. WOW! But doesn't look like the cab comes off.
https://drive.google.com/file/d/1TnjdefoNBNSYXNDnTSqYHIu2HYc5RUJs/view

 

Enhance

 

that looks like one of the short block ones

 

House Keeping? My God, who's in charge? and why?

 

Crazy Ralph said it best ..

https://www.youtube.com/watch?v=YiE41e1bwl4

 

So the Speed Diagnostics says that everybody knows not to use silver in the bearings, but apparently Toyota engineers weren't aware.

The guy who wrote this email got ahead of himself to suggest that Toyota engineers did this simple stupid mistake.

Both Toyota and Blackstone guys are stupid, and Speed Diagnostics is smarter than them all. You should reply to him asking to double check that silver isn't used and they're not testing for it.

More likely the Speed Diagnostics messed up and should in fact be testing for silver as well.

Just making a logical argument here

 

So you’re saying either Speed is wrong or Toyota is wrong and you’re betting on the one that just recalled $2B worth of engines being right. I’ll wait for more info.

 

Yes, Speed is wrong.

Just what you said. I'd bet my money on Toyota and Blackstone engineers, not speed... Never heard of them

 

What does he have wrong? That ZDDP isn’t in oil? Or that it’s not compatible with silver bearings?

 

Pretty sure he’s saying that Speed doesn’t test for silver because silver shouldn’t be in the engine.

 

Speed would agree - but there is silver.

 

That’s what he’s saying

 

Logical question:

If it’s silver leeching from the solder, why isn’t silver elevated on every analysis? Mass produced engines allow “industry averages” to be calculated. This isn’t some one off motor after all, and those averages make the oil analysis reports meaningful.

 

For those that have received letters, has the recall shown up on Toyota.com for you?

 

I just checked Toyota.ca and my truck and 3 recalls all show up there. They are also on my app immediately as they occur.

I have received the letters as well.

I have 3 open safety recalls on my truck at the moment. 2 of them will be there for a long time (fuel line and engine) the other one is the truck driving away in neutral but I don't want to waste a day at the dealership for just one recall. So I am waiting for another one to be ready.

 

I think speed is wrong on both points.

We know that silver is in the oil as confirmed by the Blackstone, so something is shedding silver inside of the engine.

And Toyota engineers weren't concerned about any incompatibilites between silver and oil. I trust them

 

That’s not this repair thats an engine tare down. Done the hard way it looks
Like

 

no joke

thankfully it looks like we are done with the short block bs , but still to your point , that’s a mess

 

Jeep engineers weren’t concerned about the hinges and doors being made of dissimilar metals, and we know how that turned out. Toyota blew it on this motor design, whatever the problem turns out to be.

 

come on dude , jeep engineers?

The motor design is fine at this point and not shown defective , there was a manufacturing problem for sure, let’s not chicken little this

there is a crap load of tundras running awesome

 

Probably not the best way to put it but I get what you mean.

 

lol, ok a bunch? The majority ? , ha!

 

Toyota just recalled 100K engines as part of a safety recall. And motors outside of the recall are failing. If Toyota really believed it was only a small number of engines that would fail, they’d fix the piecemeal. IMO, it isn’t a matter of if these new motors will eat bearings, it’s a matter when. A lot of these motors are running great right up to the moment bearing material gets circulated, I think folks are kidding themselves if they think Toyota is replacing 95,000 long blocks as a preventative measure. And given Lexus has the same issue with Tahara built motors, the machining debris theory (sloppy work in the Alabama plant) is far fetched to me. Seems more likely that they know what wrong… but it’ll sure be interesting to hear about any internal changes to the components/design when the 2025s or 2026s come out. And how long it takes them to really fix the problem. Hopefully it’s sooner rather than later.

 

That will work for the hybrids since they still have "motive power" when the engine fails. This would unacceptable to government regulators for the regular engines due to the safety concern for loss of motive power at speed when the engine fails.

 

It is normal to use silver as an electroplated overlay, but not common to see it on a UOA. It serves to add antifriction and is also stronger than some other materials (such as copper). Silver should actually help with spun bearings, as it can help with a bit more friction than some metals. I would not trust an oil analysis that does not test silver. I also think high silver is a precursor to debris caused engine failure in these engines, as it indicates bearing wear. I have had UOAs on my 5.7 and 4.0 Toyotas and no silver was ever indicated.

Most consumer oils contain amounts of ZDDP compatible with electroplated silver bearings, but some diesel and racing oils do have very high levels. If a backwoods hobby engine builder like me is aware of this, so is Toyota.

Outside of debris, I think fuel dilution could also be a killer.

Silver also is very tolerant to heat. I wonder if the turbos have silver in their bearings.