SECTION 303-01A: Engine — 3.7L
2014 Mustang Workshop Manual
DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Procedure revision date: 01/07/2013

Cylinder Head


Special Tool(s)
Compressor, Valve Spring
303-300 (T87C-6565-A)
Compressor, Valve Spring
303-350 (T89P-6565-A)
Compressor, Valve Spring
303-1249
Installer, Valve Stem Oil Seal
303-470 (T94P-6510-CH)

Material
Item Specification
Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor Oil (US); Motorcraft® SAE 5W-20 Super Premium Motor Oil (Canada)
XO-5W20-QSP (US); CXO-5W20-LSP12 (Canada) 		WSS-M2C945-A

NOTE: RH cylinder head shown, LH cylinder head similar.


Item Part Number Description
1 W714133 RH exhaust manifold heat shield bolt (2 required)
2 9A462 RH exhaust manifold heat shield
3 W701706 RH exhaust manifold nut (6 required)
4 9430 RH exhaust manifold
5 9448 RH exhaust manifold gasket
6 W712244 RH exhaust manifold stud (6 required)
7 6G004 Cylinder Head Temperature (CHT) sensor
8 W714090 Timing chain tensioner arm pin
9 W714090 Timing chain guide pin
10 6518 Intake valve spring retainer key (12 required)
11 6514 Intake valve spring retainer (6 required)
12 6513 Intake valve spring (6 required)
13 6571 Intake valve stem seal (6 required)
14 6505 Intake valve (6 required)
15 6518 Exhaust valve spring retainer key (12 required)
16 6514 Exhaust valve spring retainer (6 required)
17 6513 Exhaust valve spring (6 required)
18 6571 Exhaust valve stem seal (6 required)
19 6507 Exhaust valve (6 required)
20 6049 RH cylinder head

Disassembly

All cylinder heads

  1. Remove the 2 bolts and the exhaust manifold heat shield.
  1. Remove the 6 nuts and the exhaust manifold.
  1. Clean and inspect the exhaust manifold. For additional information, refer to Section 303-00 .
  1. Remove and discard the 6 exhaust manifold studs.
  1. Remove the timing chain guide pin.

  1. NOTE: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.

    Using the Valve Spring Compressors, remove the keys, retainer and spring.
  1. Remove the valve from the cylinder head.
  1. Remove and discard the valve stem seal.
  1. Repeat the above steps for each valve.

RH cylinder head

  1. Remove the timing chain tensioner arm pin.
  1. Remove and discard the Cylinder Head Temperature (CHT) sensor.

Assembly

All cylinder heads

  1. NOTE: If the components are to being reinstalled, they must be installed into their original location.

    NOTE: Lubricate the valve stem and valve stem seal with clean engine oil prior to installation.

    Using the Valve Stem Oil Seal Installer, install a new valve stem seal.
  1. Install the valve.
  1. Using the Valve Spring Compressors, install the valve spring, retainer and key.
  1. Repeat the above steps for each valve.
  1. Install the timing chain guide pin and tighten in 2 stages.

RH cylinder head

  1. Install a new CHT sensor.
  1. Install the timing chain tensioner arm pin and tighten in 2 stages.
  1. Install 6 new RH exhaust manifold studs.

  1. NOTICE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.

    Using a new gasket, install the RH exhaust manifold and 6 new nuts. Tighten in 2 stages in the sequence shown:
  1. Install the RH exhaust manifold heat shield and the 2 bolts.

LH cylinder head

  1. Install 6 new LH exhaust manifold studs.

  1. NOTICE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.

    Using a new gasket, install the LH exhaust manifold and 6 new nuts. Tighten in 2 stages in the sequence shown:
  1. Install the LH exhaust manifold heat shield and the 2 bolts.