84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

22re Cylinder Head Block / Bypass - Whats it called?

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Old Oct 24, 2009 | 07:19 PM
  #1  
redwolf3's Avatar
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From: Sacramento, CA
22re Cylinder Head Block / Bypass - Whats it called?

Hey Guys-
I need help identifying a part on my '85 22re Cylinder Head. This is on the rear of the Cylinder Head:




I'm really trying to figure out what its called so I can figure out the proper way to seal it back up and the proper torque for it (I removed it from my old head). I'm assuming I can just use some Water Pump Sealant since it appears to be some sort of coolant bypass, but wanted to make sure.

Thanks!
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Old Oct 24, 2009 | 07:28 PM
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crawlerjunkie's Avatar
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From: Santee C.A.
i don't know what its called but there's a gasket for it in every head job Ive done. as for torque i just tighten it evenly all the way around.
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Old Oct 24, 2009 | 07:29 PM
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EGR bypass i believe.... i don't think it has a name..... if it did i think its called cylinder head rear plate...............lol

Last edited by Kiroshu; Oct 24, 2009 at 07:33 PM.
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Old Jun 14, 2010 | 10:40 PM
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MortonPhotographic's Avatar
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From: Scottsdale, AZ
Yup, doin' mine now and it isn't even mentioned in the FSM, but there is a diagram of it in the page 63, # 10 photo in regard to the air injection manifold, which I think is the pipe bolted to it.

The Chilton's manual does call it a Cylinder Head Rear Plate.

I can't find a torque spec on it anywhere, Google actually lead me back to this site which is where I usualy look anyway!
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Old Jun 15, 2010 | 06:34 AM
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It is the cooler for the exhaust gas coming from the exhaust ports to the EGR valve (called the EGR Cooler in my '85 FSM).
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Old Jun 15, 2010 | 11:38 AM
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In the FSM, there are "default" torque specs for fasteners based on size, thread, and type. I used these torques for setting mine. Memory is telling me it was something like 13 ft-lbs, but I'd have to look again.
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