Replacing a head on an engine is a very complicated task. Most likely, any answer you would get here would not be enough information for you, unless it was a book in length. You should go purchase a manual for that, either a Chilton's manual, or Haynes. Your best bet is to take the vehicle to a shop.
Depending on your mechanical ability and tools on hand expect to spend about 8 hours.
Are you sure of the engine size? Should be 7mge inline six cyl. 22r wasn't offered in a 1990 cressida.
To set the timing on a Toyota 22R engine find the distributor. The engine will have marks at which the distributor can be set. The OEM setting for a 22R engine is 5 degrees.
no it will not the pistons are diffrent the 20r has domw pistons and the 22re has flat top pistons
To replace the injectors in 86 Toyota truck 22r, simply refer to your user and service manual.
a 22re is a radiator ignition and a 22r is just the radiator.
According to my 1991 owner's manual the gap is 0.031in or 0.8mm for a 22R-E engine.
Yes. In most models, if not all, the 22r came stock in them.
The 1984 Toyota 22R engine diagram can be obtained from most Toyota dealerships. The engine diagram can also be found at most auto-parts stores.
Replace the head gasket for sure. That is assuming you did not continue to drive the vehicle until you destroyed the engine internally.
You can get a diagram for a 1983 Toyota truck 22R engine at various auto part stores. You can also check in the owner's manual.
In short you have to take the head off, replace the gasket/s and replace the head. You best bring it to a pro.