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I've been through this before, 25-30k miles ago.
Tell me what you think of this idea. The chain is too long because the cylinder head has been shaved below minimum specs. OR the cylinder head was replaced by a PO who put on a 22RE head. At the machine shop I saw two numbers yesterday 3.90-3.950' head thickness and 3.785'.


There are two versions of timing chains.
The head could be shaved too much.
The block could be decked too much.
Could be an incorrect head, as you've mentioned... You need to figure you which block/head combo you have as well as measure your timing chain.

22REturbo.net




1988 4Runner
22RTE core, turbocharged, megasquirted...