SECTION 303-01A: Engine — 3.5L Ti-VCT
2014 Flex Workshop Manual
DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Procedure revision date: 05/02/2013

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

Cylinder Head

NOTE: RH shown, LH similar.


Item Part Number Description
1 6518 Intake valve spring retainer key (12 required)
2 6514 Intake valve spring retainer (6 required)
3 6513 Intake valve spring (6 required)
4 6571 Intake valve stem seal (6 required)
5 6507 Intake valve (6 required)
6 6505 Exhaust valve (6 required)
7 6571 Exhaust valve stem seal (6 required)
8 6513 Exhaust valve spring (6 required)
9 6514 Exhaust valve spring retainer (6 required)
10 6518 Exhaust valve spring retainer key (12 required)
11 6G004 Cylinder Head Temperature (CHT) sensor (RH cylinder head only)
12 W714090 Timing chain guide pin
13 W714090 Timing chain tensioner arm pin (RH cylinder head only)
14 6049 Cylinder head

Disassembly

All cylinder heads

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.

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

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. Install the valve.

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

    Using the Valve Stem Oil Seal Installer, install a new valve stem seal.
  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.

RH cylinder head

  1. Install the timing chain tensioner arm pin.
  1. Install a new CHT sensor.