Extraterrain
Bought an X
- Location
- Western Washington South Sound
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Last edited:
cylinder head torque?
- Thread starter Extraterrain
- Start date
Extraterrain
Bought an X
- Location
- Western Washington South Sound
I've got lots of pics too. Hopefully it's gnna help somebody in this forum
With future Diy head gasket jobs on the VG33E.
With future Diy head gasket jobs on the VG33E.
Extraterrain
Bought an X
- Location
- Western Washington South Sound
I got an answer why, I walked over next door to Nissan, I talked to a master tech,
He said the theory behind torquing the heads and manifold together is to prevent
The manifold from cracking. If the heads are bolted down first and then the
Manifold is done second, it can potentially pull the manifold apart or outwards.
Thus potentially causing the manifold to warp or crack.
He said the theory behind torquing the heads and manifold together is to prevent
The manifold from cracking. If the heads are bolted down first and then the
Manifold is done second, it can potentially pull the manifold apart or outwards.
Thus potentially causing the manifold to warp or crack.
Extraterrain
Bought an X
- Location
- Western Washington South Sound
I know some engineer probably came up with this theory but I see domestic
Engine builds done this way all day long. So I guess I'll just follow the 20 step
Torque process and get it over with. I just got my heads back from the machine
Shop so I'm ready to put this crap back together and get it off my rack. My shop
Foreman is nagging me to get it done. Since its taking up my valuable space to
Work on customers cars. I'll try and get a write up on here soon.
Engine builds done this way all day long. So I guess I'll just follow the 20 step
Torque process and get it over with. I just got my heads back from the machine
Shop so I'm ready to put this crap back together and get it off my rack. My shop
Foreman is nagging me to get it done. Since its taking up my valuable space to
Work on customers cars. I'll try and get a write up on here soon.
- Location
- Denver Adjacent
Wow. That's a silly process. Does that mean if you remove the lower plenum the head bolts have to be removed and them all torqued together?
Glad you got your answer. Looking fwd to the write up.
Glad you got your answer. Looking fwd to the write up.
the heads "should" have been torqued correctly on original installation of the heads and intake. by removing the lower intake manifold, you shouldnt have to re-torque the heads at all.
however, while you are there, you might as well replace the valve cover gaskets and you can check the torque of the heads if you feel so inclined at that point. you will need a long 10 mm hex socket to fit into the bolt heads though.
however, while you are there, you might as well replace the valve cover gaskets and you can check the torque of the heads if you feel so inclined at that point. you will need a long 10 mm hex socket to fit into the bolt heads though.