Head Torque sequence needed?

Cylinder head bolt tightening Stages
1. Tighten to 11 ft lb.
2. Tighten to 26 ft lb.
3.90 degrees
4 then another 90 degrees.

You're asking for the tightening pattern for the cylinder head bolts on a Mitsubishi 4B11 engine (which is in your 2015 Lancer ES non-turbo). This pattern is crucial for evenly distributing the clamping force and preventing head warping.
While I can't provide a visual diagram directly, the standard tightening pattern for a 4-cylinder engine like the 4B11 is typically a spiral pattern, working from the center outwards.
Here's a general description of how it works for a 10-bolt cylinder head (which is common for these engines):
Imagine the cylinder head with its 10 bolts arranged like this (numbers represent bolt positions, not tightening order):
(10) (8) (6) (4) (2)
(1) (3) (5) (7) (9)

The tightening sequence would generally be:
* Start with the two center bolts. These are usually the ones closest to the middle of the cylinder head.
* Work outwards in a spiral or criss-cross fashion. The goal is to apply even pressure from the center towards the ends of the head.
A common pattern would look something like this in terms of the order you tighten them:
(9) (7) (5) (3) (1)
(2) (4) (6) (8) (10)

Tightening Order:
* Center (one of the middle two)
* Other center
* Bolt next to #1 (towards one end)
* Bolt next to #2 (towards other end)
* Continue alternating and moving outwards.
Why the Pattern is Important:
* Even Pressure: This ensures the cylinder head is pulled down evenly onto the engine block, preventing high-stress points that could lead to cracks or warpage.
* Proper Gasket Sealing: An even clamp is essential for the head gasket to seal correctly, preventing coolant or oil leaks and maintaining compression.
* Preventing Distortion: Without a proper pattern, the head could distort as it's tightened, leading to future problems.
Crucial Reminder:
As mentioned before, always refer to a specific service manual for your 2015 Mitsubishi Lancer ES (with the 4B11 engine). The manual will contain a clear diagram of the exact tightening sequence, along with the multi-stage torque and angle specifications. Using the correct pattern is just as vital as using the correct torque.

Good luck hope this helps ".