Valley Pan Torque...Help!

[Blk00ss]

I'm doing the valley pan gasket, knock sensors, intake manifold gasket etc on '05 Tahoe 5.3. Can anyone tell me...

Valley pan cover bolt torque and sequence
Intake manifold bolt torque and sequence

I'm seeing conflicting info online. Thanks!

 

[MassHoe04]

This if what I have from my 04 FSM on torque specs...

Engine Valley Cover Bolts 25 N.m (18 lb ft)

Intake Manifold Bolts - First Pass in Sequence 5 N.m (44 lb in)
Intake Manifold Bolts - Final Pass in Sequence 10 N.m (89 lb in)

 

[MassHoe04]

Intake instructions from Summit Racing

How do I install my LS intake manifold?

help.summitracing.com

 

[MassHoe04]

I am wondering if there is any sequence on the Valley Pan torque...
I did not see any when I Googled.

The torque is pretty light... 18 lb ft is not exactly cranked on there that tight. Possible there is no sequence?

Others will tell you more than I can on dealing with the Valley Pan torque.

 

[Blk00ss]

I am wondering if there is any sequence on the Valley Pan torque...
I did not see any when I Googled.

The torque is pretty light... 18 lb ft is not exactly cranked on there that tight. Possible there is no sequence?

Others will tell you more than I can on dealing with the Valley Pan torque.

I was wondering the same. I think to be safe (if no one says otherwise) I may just run them cross pattern like the intake

 

[Alex_M]

Cross pattern doesn't hurt, but the valley pan isn't super critical to get perfect. Good clamping force even at low torque with all those fasteners, and a nice soft thick gasket to make a good seal.

I don't even use a torque wrench on them. Just run em down "about right". Never had one leak.

 

[Blk00ss]

Well I guess neither of my click torque wrenches goes down low enough for the intake. Guess I'll have to guess a little

 

[89Suburban]

Well I guess neither of my click torque wrenches goes down low enough for the intake. Guess I'll have to guess a little

Use "The Force"...

 

[Blk00ss]

Use "The Force"...

I'm amazed how light the torque is on the intake. I realize its plastic, but I figured it would be more than 89 inch pounds. thats only like 7.5 ft lb

 

[Blk00ss]

Guess I'll tighten first pass, then go 10lb ft the 2nd. anyone try this method haha?