Theyseemespoolin

Was coasting downhill today, foot off the throttle, when the engine popped and started misfiring. I checked under the hood after parking, and saw that the #1 plug had come out. No obvious trauma to the plug, threads or head that I could see from the outside. Awesome guy at Oreilly's sells me new plugs and tells me that if it doesn't thread right, I need a new head. All went well till I felt it face up to the block. I went in for the final 1/4 turn Dad always talked about, and the plug went loose. I didn't try to pull it out, but it took about the same amount of turns to reach the "loose point." however, I put the plug in and it fires right up.

Do I need a new head?
Can I use a 22re head or do i need an aftermarket/stock 22rte head?
How in-depth is this repair going to be?

This is a 3rd car/toy, so I'm not in a crunch that would justify immediately buying a new $500 head from a parts store. Any help would be great.

87-4runner

Helicoil...

Theyseemespoolin

Is it a good idea to Helicoil with a turbo engine?

Theyseemespoolin

Is it a good idea to Helicoil a turbo engine?

Co_94_PU

iTrader: (-1)

Can you use a 22RE head in a 22RET yes, but you probably shouldn't. The turbo version has a larger combustion chamber, less compression ratio.

Wether you choose to use a helicoil or change the head you will be best off to remove the head from the block, which means an assortment of new gaskets and fluids..

Think you had some other direct questions but I've forgotten them..

Theyseemespoolin

Thanks for the info. Our plugs are m14x1.25, right?

And reliability notwithstanding, wouldn't a smaller combustion chamber=higher compression=MORE POWAH in my turbo engine?

Co_94_PU

iTrader: (-1)

I do not have the sparkplug thread memorized..

Some from memory numbers here, the rte ratio is 9.2 the re ratio something like 11.6 running the hybrid rte pison in an re head gives somewhere around 10.x which puts the timing advance at/over the limiter.. Which leads to needing a higher octane than pump gas if you want to actually drive it..

There are shed loads of information on the RTE forums. I wouldn't suggest messing with the system as designed unless you have a tunable ECU, a dyno guy, and an extra engine laying around.

That all said, there are several reports of turbos attached to stock 22RE blocks.. Again I wouldn't do it, who the hell wants to run a 5psi Turbo! I have a 2L turbo on mine it's it's bloody scary when it hits double the stock pressure and wants to keep going It's not a dragster it's a 4x4, disasters waiting to happen.

Discombobulated

Keep it stock unless you’re going to spend ALOT of money for gains that are not worth it.