I'm in need of a engine and looking for ideas.
Some questions I have are:
I'm posting pictures/video to answer question of why I'm looking.
Heater Tee blew, combustion gas coming out the rear water by-pass joint water outlet hose.
Edited 2/17/18 to include post near end, skip if you'd like to just read through.
Conclusion took me back to what @Ali FJ80 first said to me "stick with the Japanese made engine for my replacement selection"
I've post in many Tundra, Sequoia & Land Cruiser forums and threads asking about rods & piston slap (after warm up). I've not found evidence or firsthand knowledge of these things in any forums or news articles.
But, 2 out of 3 Mechanics are seeing more issues with USA made 2UZ-fe.
Turning to shops for answers, asking mechanics what they're seeing.
1) One, a heavy duty Toyota Dealer mechanic of 20 years said: "odds of piston slap are the same Japanese or US made" He doesn't think there's a difference.
2) One, at a one man shop that work on various makes or models, but specializes in Toyota said avoid the US made they develop piston slap.
3) One at a one man shop that works only on Toyota said; "Seeing broken rods and hears piston slap in USA made, and not in Land Cruisers".
I did not find out where the respective components (block, crank, rods, pistons, heads, cams, etc.) are forged. But did see written in article about million mile tundra and video evidence they're machined at plant of assemble
I'd like to find out why this is the case; metals, coatings, tolerance, oils, workmanship or what?
Why! Concern without more info, can new OEM parts from the Dealer to be trusted.
Edited 2/17/18: To include a later post, that I copy over from the Tundra section also include links from other Forums.
Thanks @krice118 I do recall that thread now, it was very inconclusive. Accidental Tundra Motor Upgrade 2UZFE engine
He didn't even state which year the Tundra 4.7 was from. Just said 01-04, which could be Japanese or USA made (03+ USA made). His claim it has super power, well the long block and intake are the same in all 4.7L. What I did find interesting, is he bent a rod by overboosting a 100 series w/SC. All 4.7L rod are forged. That said; I've heard of bad rod on Tundras, but never on 100 series that are stock.
@FJ73Texas labor force may well be the case, I can't say! Toyota does say; Quality control, training and management style is the same world wide.
What I can say, or rather wish I had the answers for:
"Thereafter" oil in the real world use, how engine maintained and frequency & quality of oil & filters (Oil & Air) certainly have effects. But if we assume we've about equal good & poor maintainers of each, than that is really beyond the scope of is this as a Toyota manufacturing issue.
Indication are there was a lot more Tundras & Sequoia 4.7L than the 100 series in the USA. Could numbers be the reason USA made 4.7L had/have a bad rap. Well' I asked each mechanic if they saw/worked on more USA or Japanese made. They each said about equal, which surprises me, beings it seems we've more of one than the other here in the USA.
I ask the mechanics:
Was there any years which they saw more issues than others. One did not indicate years. But was very clear he not only experiencing in the shop, but heard complaints about piston slap while on Tour with Toyota, from owners of USA made 4.7L.
Another said the 03-early07, thereafter it stop. It seemed with the intro of the 5.7, they made a change to the 4.7L. Again one must ask; was this perception (based on numbers) as more 5.7 would surely have been bought/sold IMHO by first adopters and those desire for latest great and more power. Or did Toyota change something.
Issue obviously does not affect all USA made or I would have gotten overwhelming response in the many forums I posted these question in. But I'm now of the opinion it is a manufacturing issue, of at least some of the USA made 4.7L.
I've enough concern I'll not buy a USA made pre 07 without hearing it run, for use in a 100 series. The risk; I may waste money and time needed to pull back out is just to high!
Some of the thread I posted these question:
Japanese 4.7L engine better than USA made?
Piston Slap, who's noticed some?
Japanese 4.7L engine better than USA made?
Are 2UZ-fe in Tundra/Sequoia developing piston slap?
Japanese 4.7L engine better than USA made? - Toyota Tundra Forums : Tundra Solutions Forum
Piston slap - Toyota Tundra Forums : Tundra Solutions Forum
Japanese 4.7L engine better than USA made? - TundraTalk.net - Toyota Tundra Discussion Forum
Some questions I have are:
- What all makes, models and years did Toyota/Lexus install the 2UZ-fe VVti in?
- Are the 2UZ-fe VVti engine the same in the 06-07 Land Cruiser/LX470?
- Are 4runner, GX, Tundra, Sequoia etc. different then ours?
- What are the difference?
- What are some good sources for engines?
I'm posting pictures/video to answer question of why I'm looking.
Heater Tee blew, combustion gas coming out the rear water by-pass joint water outlet hose.
Edited 2/17/18 to include post near end, skip if you'd like to just read through.
Conclusion took me back to what @Ali FJ80 first said to me "stick with the Japanese made engine for my replacement selection"
I've post in many Tundra, Sequoia & Land Cruiser forums and threads asking about rods & piston slap (after warm up). I've not found evidence or firsthand knowledge of these things in any forums or news articles.
But, 2 out of 3 Mechanics are seeing more issues with USA made 2UZ-fe.
Turning to shops for answers, asking mechanics what they're seeing.
1) One, a heavy duty Toyota Dealer mechanic of 20 years said: "odds of piston slap are the same Japanese or US made" He doesn't think there's a difference.
2) One, at a one man shop that work on various makes or models, but specializes in Toyota said avoid the US made they develop piston slap.
3) One at a one man shop that works only on Toyota said; "Seeing broken rods and hears piston slap in USA made, and not in Land Cruisers".
I did not find out where the respective components (block, crank, rods, pistons, heads, cams, etc.) are forged. But did see written in article about million mile tundra and video evidence they're machined at plant of assemble
I'd like to find out why this is the case; metals, coatings, tolerance, oils, workmanship or what?
Why! Concern without more info, can new OEM parts from the Dealer to be trusted.
Edited 2/17/18: To include a later post, that I copy over from the Tundra section also include links from other Forums.
Thanks @krice118 I do recall that thread now, it was very inconclusive. Accidental Tundra Motor Upgrade 2UZFE engine
He didn't even state which year the Tundra 4.7 was from. Just said 01-04, which could be Japanese or USA made (03+ USA made). His claim it has super power, well the long block and intake are the same in all 4.7L. What I did find interesting, is he bent a rod by overboosting a 100 series w/SC. All 4.7L rod are forged. That said; I've heard of bad rod on Tundras, but never on 100 series that are stock.
@FJ73Texas labor force may well be the case, I can't say! Toyota does say; Quality control, training and management style is the same world wide.
What I can say, or rather wish I had the answers for:
- We don't know if metals are the same. By this I mean, was the same crank, rods, block or piston for example provided from same or different source in USA vs Japanese made engines?
- Final machining of these various parts was likely done at their respective assembly plants. Could the talorances be better at one more than the other plant. If so, wouldn't equipment difference more so than labor force the issue?
- There is a coating on the piston shelve (see above). Was there any different of coating.
- Any difference in Oils use in assembly. Somewhere I saw; Toyota use same for assembly that they put in the crankcase for shipping.
"Thereafter" oil in the real world use, how engine maintained and frequency & quality of oil & filters (Oil & Air) certainly have effects. But if we assume we've about equal good & poor maintainers of each, than that is really beyond the scope of is this as a Toyota manufacturing issue.
Indication are there was a lot more Tundras & Sequoia 4.7L than the 100 series in the USA. Could numbers be the reason USA made 4.7L had/have a bad rap. Well' I asked each mechanic if they saw/worked on more USA or Japanese made. They each said about equal, which surprises me, beings it seems we've more of one than the other here in the USA.
I ask the mechanics:
Was there any years which they saw more issues than others. One did not indicate years. But was very clear he not only experiencing in the shop, but heard complaints about piston slap while on Tour with Toyota, from owners of USA made 4.7L.
Another said the 03-early07, thereafter it stop. It seemed with the intro of the 5.7, they made a change to the 4.7L. Again one must ask; was this perception (based on numbers) as more 5.7 would surely have been bought/sold IMHO by first adopters and those desire for latest great and more power. Or did Toyota change something.
Issue obviously does not affect all USA made or I would have gotten overwhelming response in the many forums I posted these question in. But I'm now of the opinion it is a manufacturing issue, of at least some of the USA made 4.7L.
I've enough concern I'll not buy a USA made pre 07 without hearing it run, for use in a 100 series. The risk; I may waste money and time needed to pull back out is just to high!
Some of the thread I posted these question:
Japanese 4.7L engine better than USA made?
Piston Slap, who's noticed some?
Japanese 4.7L engine better than USA made?
Are 2UZ-fe in Tundra/Sequoia developing piston slap?
Japanese 4.7L engine better than USA made? - Toyota Tundra Forums : Tundra Solutions Forum
Piston slap - Toyota Tundra Forums : Tundra Solutions Forum
Japanese 4.7L engine better than USA made? - TundraTalk.net - Toyota Tundra Discussion Forum
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