The Car Care Nut talks UR V8 blown head gaskets (6 Viewers)

[ryanCA]

True. Let’s get 380 cases or more and then I am a believer there is an issue. Otherwise this is noise, however unfortunate for the owners.

Yawn

I will call all 380 owners now.

BRB

 

[2021 LC200]

Yawn

I will call all 380 owners now.

BRB

I agree maths and statistics can be boring however most is well understood and documented.

 

[gasman4u]

If I was smart enough to understand math and statistics, I wouldn't be driving a 200.

I am just hanging out till I get deported.

Complete those phone calls. Use that for the basis of your ICE defense case. And that you don’t drive a 250. Two solid cornerstones here

 

[mark71]

380 failures for the numerator? What is the denominator?

I don’t know how many 200 owners post on here, but I suspect that 380 would be an alarmingly high fraction of them, rather than just a data point that reached statistical significance.

 

[gasman4u]

He calls me once a week.

Where I am, I am only allowed collect calls, and he usually doesn't accept.

His "nice guy" act is JUST that?!?! It is quite convincing though with the "hello and welcome..." opening.

 

[gray rider]

What's the significance of 380?

 

[2021 LC200]

380 failures for the numerator? What is the denominator?

I don’t know how many 200 owners post on here, but I suspect that 380 would be an alarmingly high fraction of them, rather than just a data point that reached statistical significance.

There are around 1.75 million 3UR-FE’s between US and Canada, however as soon as the population is big you need those type of consistent cases (~380) without other contributing factors (like being second hand, or over heatiing event) to have a point.

So while helping each other here with repair options and recommendations is, trying to claim there is a fundamental design or manufacture issue requires a lot of data.

 

[WildYoats]

Well, it's not 380, but it's a start. Digging through the many threads here for those us that have experienced blown 200 series headgaskets. Hopefully, they chime in on that database form that was just created in the other thread.

Screen name/model year

wildyoats 2013
surfingpl 2013
jeep2cruiser 2014
vincentdevries 2011
shajbot 2013
comox 2013
YellowG 2014
TTO5 2010
alexvallorosi 2009
bentonrover 2008
570lemur 2008
fountainhead 2010
Bryanmc 2010
RTK 2013
bohdi11 2011
lcgeek 2008
RCCKY 2014
art5519 2009
Atwalz 2013
KyleLyle17 2014
AeroAggie 2010
jmw101 ?

 

[gray rider]

That's a long way from 380 (how is 380 even the benchmark?). But I will add my 2014 fubar retarded timing machine in the fullness of time...

 

[gray rider]

And WHY is it 380??

 

[WildYoats]

And WHY is it 380??

No clue, not sure if a joke or what.

 

[WildYoats]

Not looking to file anything formal over this, just giving a head's up to fellow cruiser owners, best we can do. I feel between just this forum and a mechanic's YouTube video, there's enough evidence to support there's an issue with headgaskets. Period. It's not pretty, i'm not happy about losing my 200 of 10 years in this manner. Over 105 cars owned in my life, never blew a headgasket, never thought it would be Land Cruiser. Is what it is.

Said it before in one of the other 17 threads, i'll say it again to summarize what I found digging through all these posts since it happened to me a month ago:

Of (22) Reported cases here on MUD:
YEARS: 2008-2014
MILEAGE RANGE: 83k to 300K
SYMPTOMS: Rough idle, misfire in certain cylinder (many different cylinders posted), coolant found in cylinder after borescope
OVERHEATED: Many report NO (by dash gauge at least, who seriously has a alternate temp gauge in their 200
REPAIR COST (dealer): $7,500 to $12,000
LABOR: 16 to 22 hours of labor reported. 1 to 2 weeks if done correctly
CAUSE: majority report small coolant passage between cylinders. Several have shown pics of black rubber sealant material gone on HG causing a breach
BAD COOLANT THE CAUSE?: Who knows. Some suggest science behind that. Mine was changed at 78k miles by dealer, my HG blew at 115k.
POSSIBLE RELATED CAUSES: Cracked radiators (common in 200's), valley pan leaks (common in 200's)
WHAT CAN YOU DO: occasional oil analysis, increase coolant flushes, cooling system pressure tests. Preventative maintenance is ALWAYS the right answer with ANY car brand. I do have friends that aren't religious about that, I also have friends that race this engine/car professionally in the desert and have overheated it bad with no HG issues, so sometimes in life schtuff just doesn't make sense.

Best wishes.

 

[gray rider]

I owned an 80 series for 12 or 13 years. Sold last year. Always "expecting" a head gasket problem, but never had one.....

 

[WildYoats]

I owned an 80 series for 12 or 13 years. Sold last year. Always "expecting" a head gasket problem, but never had one.....

Same. I still have my 80, 20 years now. Never any HG issues. Hope I just didn't jinx myself.

 

[linuxgod]

And WHY is it 380??

It’s been a while since I’ve done this sort of math but it’s probably the O(n) required to have a statistically significant sample size

 

[gray rider]

but 380 is still a bit nebulous.....

 

[gray rider]

why not 580 or 1080?

 

[2021 LC200]

This is based on statistics. If the around 380 3UR_FE's have no other contributing factors (i.e. timely oil changes (can only be known by the owner when purchased new), no cooling system overheating events etc) and all blow their HG say under 200k miles statistically there maybe a design and or manufacturing issue. Sofar I have seen few cases amongst those brought to our attention which fall in that category, if any of them. Now if we do not know whether there are contributing factors I suggest these number of cased needs to be well bigger like 10 or 50 times more. I do not see this the case, so we are just talking about individual bad luck cases and the 3UR-FE has no fundamental issue with the HG design or manufacture of the same. Would a bigger cast iron block with large HG seal services be an improvement? Yes it would although there are weight and further fuel consumption trade offs.

 

[gray rider]

But who declared the amazing 380 and why?

 

[gray rider]

Or perhaps it does not matter?