What is the cylinder head x engine block torque specifcation

[Rasteirinho]

Hello,

I need to know what is the torque specification for the bolts from cylinder head x engine block.

I think it's 30 N.m more 90º and more 90º...

[banpei]

removed wrong values
It's on page EM-117 of my 4AGE manual, but perhaps you can find it here as well:
http://files.aeu86.org/manuals/4A-GEManual.pdf

[Rasteirinho]

That's strange banpei...

I have a RM from the 4AFE and 4AGE engine (for the Celica, Carina and Corolla i think) and it says that the torque is 30 N.m, then 90º and then another 90º.

Very strange i think...

I ask because my engine is loosing water between the cylinder head and engine block immediately after start.

[Eircamae86]

AE86 engine bay stickers

300kg +90/+90 or see manual!!!! which tells you something else

[Rasteirinho]

2 figures...

I supose they are equivalent...

[banpei]

Ah, I see my error...
Looked at the wrong head: info I gave you are for the 8-valve head.
Correct value would be 300kg/cm (22 ft/lb, 29 N.m) if you look at page EM-117 in the manual.

[oldeskewltoy]

OR... if you have an olde manual you will note the head to block torque is 44#s. Btw... the head bolts NEVER changed part numbers... so new ones are not TTY. I used 44#s when I built my engine 5 years ago.... no head gasket or overheating issues.

I believe.... the new spec is cause there were too many STUPID techs who didn't think to do the head bolts in 3 passes(25, 35, 44). The new spec pretty much requires them to do it in 3 passes..........

[Rasteirinho]

Well, but it's tough to make the 3rd pass (last 90º).