Spark plug replacement on Land cruiser 100 series LX470 and all Toyota 2UZ engines 

Thanks, and you’re welcome!

thanks!

You’re welcome!

I’m about to do the same. Been getting 9 mpgs for quite some time. Intermittent slightly rough idle. Particularly in cold weather. But the other day my check engine light started blinking and the car was misfiring quite badly. Gonna do all 8 today.

Thanks!!

👌👌👌

Thanks for the comment! Anti-seize I believe is a must in corrosion prevention. Spark plugs are exposed to extreme heat and then cooled off completely when the car is off. I’m not sure if anti-seize will change the torque value, but even if it did, I wouldn’t think it would be enough to cause any damage to the engine unless you over torque by a significant amount. Which would be due to over torquing and not anti-seize. The boots are a must which I will add to my list!

@@chowcares Basically what the threads say is that it lowers the true value and causes the plugs to work themselves loose. Eventually this turns into a "tick" that can be mistaken for an exhaust manifold leak but can lead to misfires, coil issues, boot issues, and false codes. Like I said, some debate but FSM does not recommend usage of anti-seize so I won't bother.

mizznfizz1 that’s very interesting. I’ve owned and worked on many different cars and I want to say I always use anti-seize on spark plugs and exhaust bolts. Maybe I’ll do a follow up video after 10k miles or so and see if any of the plugs got significantly loose

I use to use anti-seize until that thread. And normally I would take what I read on the internet with a grain of salt but from denso's website it says, "If a thread lubricant such as grease is coated on the thread, tightening to the recommended torque is tightening too much; this has been linked to seal leakage. Do not use a thread lubricant.". Also, NGK is an oem plug and what came out of my LC and they state," NGK spark plugs feature trivalent plating. This silver or chrome-colored finish on the threads is designed to provide corrosion resistance against moisture and chemicals. The coating also acts as a release agent during spark plug removal. NGK spark plugs are installed at the factory dry, without lubrication or anti-seize. Anti-seize can act as a lubricant, altering torque values up to 20 percent, increasing the risk of spark plug thread breakage and/or metal shell stretch. Thread breakage can sometimes involve removing the cylinder head for repair. Metal shell stretch changes the heat rating of the spark plug and can result in serious engine damage caused by pre-ignition. Do not use anti-seize or lubricant on NGK spark plugs. It is completely unnecessary and can be detrimental." With that said, no more anti-seize for me.

@@Motokarts Thanks for this.

Good to know!

Nice!

You shouldn’t use dielectric grease anyways, as it’s an insulator and you don’t want to mess with the contact between the coil and plug. Instead use lithium grease.

Luckily I haven’t had any issues with the throttle body yet. Access to the throttle body is easy so if it is clogged you should be able to take it off and clean it pretty easily. Your best bet is to get an obd scanner (auto parts stores loan them out for free) and see what codes the computer is reading.

chowcares good idea I’ll try that

I already did mines 😭😭😭. If you’re in SoCal, I can do yours for you if you let me film it

@@chowcares I'm in Fontana, let me know best time schedule

Thanks! It’s one off eBay. Sorry I don’t have a video of me putting it in but swapped it out before I started doing RU-vid stuff. Maybe if someone local wants to buy all the parts and bring it over I can do a vid on steering wheel replacement 🤔

Thank you!!! Yes, the stock wheel on my GX is the same as LX, Sienna, Camry, 4Runner, Tundra, Sequoia and others from that era feels rather thin. Your new wheel looks meaty and should be comfortable I think.

Maxim’s DIY Garage yes I believe it’s a bit thicker to accommodate the wood inserts

Spark plugs - 13 ft lb (17.5 Nm) Coil packs - 66 in.-lb (7.5 Nm)

Snug!! Lol

I don’t have the torque specs for the plugs. I usually do them hand tight plus a 1/4 turn. They don’t need to be tight tight. Can someone help him out with the specs?

@@chowcares thank you for reply. I will do what you suggested. 👍👍

This has been a hot topic on mud lately. 13 ft lbs is not enough. They WILL work loose and can cause serious problems if not caught in time. Not sure why there hasn't been a TSB put out on this. 16-18ft lbs is the general consensus.

Motokarts good to know!!

If you still care to know: Coil Packs: (5.5 Ft lbs.) 66 Inch Pounds Spark Plugs: 13 Ft lbs “technically” but as mentioned 16-18 Ft lbs is good.

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I guess so huh?

Just because I was looking for an ignition coil replacement video and this helped me understand how :) I do SEO for a living, but have 1/25 experience in mechanical work :/ ☮️

Exactly. Never use anti-seize. Rookie mistake.