Japanese V35A-FTS Bearing Issues (5 Viewers)

[Oakleyguy]

Comparison of main bearing oil clearances for the older 1UZ Toyota V8 from the 1990 LS400, two UR series, the 2007 Toyota Tundra and the 2008 IS-F, and the V35A from the LS500.

Both LS400 and IS-F are spec'd to run 5W30 and 10W30. The V35A has larger clearances than either.

Main bearing oil clearance

LS400 standard all journals
.0010 - .0018

IS-F and Tundra journals
2 - 4 .0010 - .0015
journals 1 and 5 .0007 - .0012

V35A from the LS500 journals
1 and 4 .0012 - .00185
2 and .00137 - .00208

Max
1 and 4 .00204
2 and 3 .00228

LS400 max clearance limit .0022
IS-F and Tundra .0024

V35A- FTS bearing clearance
1-4 .00204
2-3 .00228

Here's what I'm seeing for the LX6/7:

Nominal Clearance:

EDIT:

2014 3UR-FE Engine Clearances (tighter clearances!):

2005 2UZ:
Standard clearance:
0.040 − 0.058 mm (0.0016 − 0.0023 in.)
Maximum clearance: 0.070 mm (0.0028 in.)

 

[Zill]

Here’s another 550 which appears to have bit the dust. Sure sounds like a main bearing failure.

 

[dms]

Here's what I'm seeing for the LX6/7:
View attachment 3842112

Would the increased journal size justify using 5-20 vs 0-20?

 

[cruiseroutfit]

Here’s another 550 which appears to have bit the dust. Sure sounds like a main bearing failure.

View attachment 3843354

If you can determine that was a main bearing failure based on the post, you should have a 1-800 hotline offering diagnosis via FaceTime


One of the other reported/suspected engine failures turned out to be a failed camshaft sensor. Easy fix however still unsettling to have a sensor like that failing at such low miles.

 

[rexington14]

If you can determine that was a main bearing failure based on the post, you should have a 1-800 hotline offering diagnosis via FaceTime


One of the other reported/suspected engine failures turned out to be a failed camshaft sensor. Easy fix however still unsettling to have a sensor like that failing at such low miles.

Yeah, based on the post I could also blindly guess that person just ran out of gas

 

[Oakleyguy]

Would the increased journal size justify using 5-20 vs 0-20?

I'm far from an oil lubrication expert, but part of me feels a heavier weight oil may be my move here. I may run 5-30w at the end of the day.

 

[dms]

I'm far from an oil lubrication expert, but part of me feels a heavier weight oil may be my move here. I may run 5-30w at the end of the day.

I have about 29K miles on my 24 LX and it is due for its 30K service. I am going to see how much trouble they give me when I say I want 5-20w for my oil change. When I had them change the transmission fluid at 50K on my 18 LX, they had me sign a form they had saying that it goes against their recommendations. It bet I get the same treatment for 5-20w.

 

[Oakleyguy]

I have about 29K miles on my 24 LX and it is due for its 30K service. I am going to see how much trouble they give me when I say I want 5-20w for my oil change. When I had them change the transmission fluid at 50K on my 18 LX, they had me sign a form they had saying that it goes against their recommendations. It bet I get the same treatment for 5-20w.

I'm surprised that advised AGAINST a preemptive fluid change, that's ridiculous of them. What on earth could that possibly hurt.

 

[bj70bc]

im running 0-30

 

[dms]

I'm surprised that advised AGAINST a preemptive fluid change, that's ridiculous of them. What on earth could that possibly hurt.

That was my thought.

 

[stiffarm]

That was my thought.

Checkout the Australian video on You Tube regarding failure of the V6 Turbo engine at 60,000 miles due to the 3rd piston ring losing its seal because of heat and scoring the cylinder walls. The drag caused the failure of the main and rod bearings.

 

[dms]

Checkout the Australian video on You Tube regarding failure of the V6 Turbo engine at 60,000 miles due to the 3rd piston ring losing its seal because of heat and scoring the cylinder walls. The drag caused the failure of the main and rod bearings.

I'm was unable to find the Aussie 60K mile failure video but I did find another Aussie video (with parts 1 and 2) where they convinced me to up the weight of my oil. They recommend 5W-40 if towing etc. The mechanic in the video said that he does not think that 0w-20 can dissipate heat as well as the heavier oils. I take my LX to the shop next Wednesday for its 30K service and I am going to try to get them to at least put 5W20 in it. If they won't I'll probably put 5W20 or 5W30 Amzoil in it myself.

 

[dms]

I'm far from an oil lubrication expert, but part of me feels a heavier weight oil may be my move here. I may run 5-30w at the end of the day.

I just ordered Amzoil 5W-30 for my 24 LX with 29K miles. All of my driving is highway with no towing. If I was towing anything, I think I would order the 5W-40 or 10W-40.

 

[bjowett]

0W20 has the potential to remove more heat as it is thinner and can flow quicker. The issue with stock systems lies in removing that heat from the oil. Give me 5W30 and an additional oil to air cooler.

 

[Joe T]

I am having a hard time reading everything because I am lazy and kinda stupid.

Should there be a new thread on Oil weights? From what I understand other markets without EPA MPG ratings are told to run a thicker weight oil.

I have always wondered about this on the transfer case and transmission too. Maybe why its so jerky at times. Was thinking about this prior to this oil weight talk. I know in some of my higher mile classic 4x4s the thicker the weight of oil in those makes it smoother and quieter (but they are all original some high mileage).


Joe

 

[dms]

0W20 has the potential to remove more heat as it is thinner and can flow quicker. The issue with stock systems lies in removing that heat from the oil. Give me 5W30 and an additional oil to air cooler.

That is interesting. I was wondering what you would recommend.

 

[Oakleyguy]

I am having a hard time reading everything because I am lazy and kinda stupid.

Should there be a new thread on Oil weights? From what I understand other markets without EPA MPG ratings are told to run a thicker weight oil.

I have always wondered about this on the transfer case and transmission too. Maybe why its so jerky at times. Was thinking about this prior to this oil weight talk. I know in some of my higher mile classic 4x4s the thicker the weight of oil in those makes it smoother and quieter (but they are all original some high mileage).


Joe

Oil weight will not impact your transmission programming.

 

[stiffarm]

0W20 has the potential to remove more heat as it is thinner and can flow quicker. The issue with stock systems lies in removing that heat from the oil. Give me 5W30 and an additional oil to air cooler.

Brad, maybe you can come up with an oil cooler retrofit to solve the problem.

 

[stiffarm]

I'm was unable to find the Aussie 60K mile failure video but I did find another Aussie video (with parts 1 and 2) where they convinced me to up the weight of my oil. They recommend 5W-40 if towing etc. The mechanic in the video said that he does not think that 0w-20 can dissipate heat as well as the heavier oils. I take my LX to the shop next Wednesday for its 30K service and I am going to try to get them to at least put 5W20 in it. If they won't I'll probably put 5W20 or 5W30 Amzoil in it myself.

The title is "300 Landcruiser Engine Failure" under the Engine Care channel.
Could not figure out how to attach--sorry---maybe someone else can.

 

[stiffarm]

The title is "300 Landcruiser Engine Failure" under the Engine Care channel.
Could not figure out how to attach--sorry---maybe someone else can.

The shop is D4 D Engines in AUS.