SHIFTER

Bought my 88 4runner a few weeks ago, snapped the timing chain causing a head replacement (opted to do this over rebuilding do to cost). Well i got a FRESH 22re cylinder head and the pistons hit. The motor in my truck HAS been replaced by the past owner, and is NOT turboed. However it has dished pistons and a spherical combustion chamber in the old head that is being replaced. The new 22re head does not have the spherical combustion chamber in the head, causing the pistons to hit the head where it isnt cut out

However, everything else bolted up just fine to the head and block with the new head.

SO.... what are the differences in heads for the 22re, 22rte,and 22r. What is in my truck.

SHIFTER

This is what my pistons look like... this is not my picture however: Nor is my truck turbo


Here are the two heads that I have, this first one is the original head with a bent valve that im replacing.... but worked fine on the block with the pistons in it.

Here is the Marking on this old head.... its either a 9 or 6

This is the brand new head... the pistons meet the head on the flat surface near the valves where it isnt cut out like the old head

This is its markings, it has a 12 and an 18 under the cam, but only a 12 on the side of the head


Just one last note... my truck is NOT turboed.

Dipstik_90

sounds like you have an old style 22re in the truck now and you got a head for the new style. Do the old pistons when at TDC stick above the deck of the block?

SHIFTER

I dont believe they come above the deck at TDC... however them meeting the head about 5* before tdc might indicate otherwise.

The entire bottom end (and likely old head) were installed by the last owner as a replacement, so it is likely he could have installed a 22r/22re/22rte block from a different vehicle. I havent touched the bottom end or block as it ran fine before the timing chain snapped.

SHIFTER

Well it seems after doing my research that i have an older 22R motor in the truck with 22RE injection setup on it. I am assuming there is no way to use the 22re cylinder head on this truck? nor is there anyway to use my new water pump and oil pump that i purchased for the 22re? And probably the same goes with the timing chain?

Now the question is, what to do next, use a 20r head? rebuild the old 22R head i have now... or what?

Dipstik_90

Maybe he decked the block and used a thicker headgasket?

SHIFTER

That was our first thought too... but we took a mic to the old gasket and new one and they're identical

so its pretty much positive its a 22r block though with 22re injection on it.

ugh.

Dipstik_90

I ran into exactly the same problem with mine. I bought a 22re not knowing the year, come to find out I had the early version with the taller deck height. I ended up buying a different engine that was the right one. There both 22re's just a early block and a late bock.

SHIFTER

its really a toss up for me.... im debating on just fixing the old head and slapping it back in.

only thing is, i bought a new waterpump, oil pump, and timing chain... all of which wont work with this.


hell i wonder if the head bolts are different btw the 22r and 22re. i bought new 22re headbolts too

blacletter

well this sucks i have the same problem the diffrance with mine is that my pistons stick up about 1/8 inch and hit my head i just got the runner about a month or so ago and it had a oil leak at the head so i bought it . it would run so i wasnt worried i figured it just needed a new head gasket well i pulled the head off and there were two head gaskets on it i assumed that when the guy i got the truck from had done the head gasket he had just forgotten to take the old gasket off the head well know i know whats going on is it just a differant piston or is the block completly differant

blacletter

well i found out some good news yesterday from my local machine shop . they looked up the specs on the two pistons and the real major difference is that the old style piston is around 4mm taller and all the other specs are the same so im going to try that out and see how it turns out i think i will start a build thread as i go along so that it might be a little easier for other people in the future

tried4x2signN

blacletter, stop. You have the wrong engines. The two are incompatible.

1985!

These two, NO WORKY!











and uh, two head gaskets? Who the ell "forgets" to remove one?

tried4x2signN

"All Toyota 20R - 22R - 22RE engines use the same crankshaft and connecting rods. To accommodate the different deck heights, Toyota changed the compression height (piston pin location)."



...

blacletter

yeah i called lc yesterday and they told me the same thing .thanks for the help though i found a 85 pickup that was rolled the motor has just been rebuilt has brand new 35s new cragers and the guy only wants 500 hundred bucks so we will see how it goes if not my dad has a block and rotating assembly that he gave me already but it 3 hours away and the snow hasnt let up much yet and im driving a 2wd dodge pick up so it will just have to wait oh by the way the extra block i have is out of a 88 4runner the one that my parents had when i was growing up so no doubt on year

blacletter

the domed piston in the picture doesnt look any thing like mine on closer inspection. it looks like someone ground down the tops on them so that the piston is sitting about an 8th of an inch above the block the runner ran when i got it . it just didnt run good and i now see why! man i realize that it will be a little while before i have this sorted out ,at least there is still hope . no telling what all the guy did wish me luck and thanks again for the help .