What Needs To Be Done To Change The Valve Lifters On A 1996 Ford Ranger 4.0

The 4.0L OHV (Over Head Valve) 5-6 engine institute its fashion in to the Ford Ranger in 1990 and ultimately replaced the 2.9L 5-6. This evolutionary redesign of the American 2.9L solved many of the reliability issues that plagued its predecessor. A beefier cylinder head design eliminated the two.9L's common failure of cracked heads. Hydraulic roller lifters replaced the simple hydraulic lifters used in the 2.9L, which were sometimes overly sensitive to oil contamination, often requiring the lifters to exist replaced prematurely. All the same, i major pattern mistake was non completely eliminated: Valve rockers and upper pushrod tips even so received poor oil supply, resulting in eventual wear to these areas, and consequential valvetrain noise equally a consequence of the increased clearance. Required replacement of these parts is common in older engines.

The iv.0L OHV engine was produced until 2000 and was used in the Ford Explorer and Ranger. Output was 160hp and 225 ft�lbf. Though at that place is some variation, typically 155hp is quoted equally horsepower for 1990-1992 applications.

In 1998 the iv.0L SOHC (Single Over Caput Cam) engine replaced the 4.0L OHV engine producing 207hp.

SOHC & OHV Engine Differences:

The difference between a SOHC 4.0L and OHV four.0L is that in a SOHC engine in that location is a camshaft sitting on the top of each cylinder head with the valves running directly off the camshaft. It doesn't rely on push rods, rocker arms, or lifters. The SOHC engine uses a jackshaft in place of a camshaft to drive a timing chain to each cylinder caput. Three timing chains are used, i from the crank to the jackshaft, i in the front of the engine to drive the cam for the left bank, and one on the dorsum of the engine to bulldoze the cam for the correct bank.

The OHV engine has the cam mounted in a higher place the creepo. The cam and crank are joined in time by a timing chain. Lifters ride on the cam and button rods that extend to rocker arms in the heads which push the valves.

The SOHC four.0 Usage:

Nosotros know that the Ford Ranger switched from the OHV iv.0L to the SOHC 4.0L in 2001, only the Ford Explorer wasn't equally divers. The Ford Explorer actually started using the SOHC 4.0L in 1997 forth with the OHV four.0L. It wasn't until 2001 that Ford completely dropped the use of the OHV 4.0L in the Explorer. So that means that a 1997-2000 Ford Explorer can accept either a OHV 4.0L or SOHC 4.0L, so you definitely need to look at the intake manifold and run across how information technology'southward stamped.

Specifications

Engine Displacement (Cubic Inches)

245 CID

Type

OHV (1990 - 2000) (VIN Code X)

SOHC (2001 - 2007) (VIN Code E)

Bore x Stroke

3.95 x iii.31 inches

Compression Ratio

9.0:one

Fuel System

Sequential Fuel Injection

Fuel Force per unit area

39 - 40 PSI (xxx PSI @ idle) (OHV Engines)

64 - 75 PSI (SOHC Engines)

Horsepower

160hp @ 4200 RPM (1990 - 2000)

207hp @ 5250 RPM (2001 - 2007)

Torque

220 @ 2400 RPM (1990 - 2000)

238 @ 3000 RPM (2001 - 2007)

Oil Force per unit area

40 - 60 PSI @ 2000 RPM

Tune Upwards

Spark Plug (Motorcraft)

Of import Notation: The SOHC spark plug is almost one/4 inch longer then that of the OHV. The OHV plug will fit but it won't operate properly.

(OHV spark plug at the top - SOHC plug on the lesser)

1990-1996 uses SP486 (Platinum) (old part number is AWSF42P)

1997-2000 uses SP500 (Platinum) (old part number is AGSF22PP) or SP413 (Premium Nickel)

2001-2005 uses SP498 (Platinum) (old part number is AGSF34FP) or SP412 (Nickel)

Spark Plug Gap

0.054 inches

Ignition Timing

10 degrees BTDC

Firing Order

1-4-2-5-iii-half dozen

Capacities

Oil Capacity With Filter Alter

five Quarts (OHV Engines)

5 Quarts (SOHC Engines)

Cooling System Capacity (Quarts)

W/Air conditioning- 7.two / W/O AC vi.five (OHV Engines)

13.two Quarts (SOHC Engines)

Torque Specifications

Cylinder Head

Torque in 3 steps [1st (22-26ft-lbs), second (52-56ft-lbs), third (Tighten another 90-degrees)] (OHV Engines)

Torque in 2 steps [1st (24ft-lbs), 2nd (Tighten another 90-degrees)] (SOHC Engines)

Chief Bearing Bolts

66 - 77 ft-lbs (OHV Engines)

72 ft-lbs (SOHC Engines)

Rod Bearing Bolts

xix - 24 ft-lbs (OHV Engines)

Torque in 2 steps [1st (15ft-lbs), 2nd (Tighten another 90-degrees)] (SOHC Engines)

Crankshaft Pulley Bolts

Torque in 2 steps [1st (30-37ft-lbs), 2nd (Tighten another xc-degrees)] (OHV Engines)

Torque in 2 steps [1st (37ft-lbs), 2nd (Tighten another 90-degrees)] (SOHC Engines)

Flywheel to Crankshaft Bolts

59 ft-lbs (OHV Engines)

75 - 85 ft-lbs (SOHC Engines)

Lower Intake Manifold / Throttle Body

Torque in 4 steps [1st (iii-6ft-lbs), 2nd (6-11ft-lbs), 3rd (11-15ft-lbs) 4th (15-18ft-lbs)] (OHV Engines)

vii ft-lbs (SOHC Engines)

Frazzle Manifold

19 ft-lbs (OHV Engines)

16 ft-lbs (SOHC Engines)

4.0L Firing Society

4.0L Engines Firing Order: 1-four-2-five-3-6 DIS Ignition Organisation

Known Bug:

Missing or Bogging - There are several things that could be causing this. Starting time off your MAF may exist dirty. Check HERE on how to clean it. Then in that location are the obvious - plugs, wires, dirty injectors. Tune upward items basically.

Also, if yous go a trouble with hesitation, check the wires around the exhaust. One of the oxygen sensor wires may have been damaged by the frazzle.

Loose Intake Manifold Bolts - Some 90's 4.0L's accept a trouble with loose intake bolts. Click Here for more details.

Functioning Parts:

Tom Morana:

Offers stroker kits, camshafts, connecting rods, pistons, cylinder heads

K&Due north Filters :

Carries products including new air intake systems for some iv.0L Rangers.

Camcraft :

Offers a new camshaft for the iv.0L.

Kurtz Kustomz :

Sells a True-Rev Sport Induction Kit.

Super Six Motorsports:

Offers heads and intakes for the four.0L engines.

Competition Cams :

Offers camshaft# 49-410-viii equally an OEM replacement skilful for towing and all around operation. Camshaft# 49-422-eight is a more aggressive cam for four.0'southward with other modifications. It is designed to improve midrange power and torque.

Thomas Knight :

Offers a kit to install an Eaton supercharger on the 4.0L Ranger.

eBay Supercharger Kit:

Nosotros establish this kit on eBay to mount an Eaton supercharger on a newer SOHC 4.0 Ranger. The kit does not include the supercharger. The supercharger required is the 3rd generation m90, from the 1989 thru 1993 Ford T-Bird Supercoupe. (the inlet is oval). The manifold is all (aluminum), each port uses ii"OD aluminum ninety degree ells. At that place are 3-1/8" threaded pipe plugs in the manifold for sensor, water or booze injection, etc. The manifold will handle the weight of the M90 (without) additional support. This kit includes all component parts to install an Eaton M90, 3rd generation Supercharger on a 2002 Ford Ranger 4.0 SOHC.

Offers the X-Charger for the iv.0 SOHC Ranger.

Explorer Limited X-Charger

Explorer Express also offers headers, spark plug wires, throttle bodies, and intake tube for the four.0L OHV Ranger.

Vortec and Paxton had produced superchargers for the iv.0L engine but nosotros can no longer discover them listed.

BBK offers 66mm throttle bodies for the 4.0L OHV Ranger.

Offers a throttle body spacer that's said to increase low end operation and horsepower.

Pacesetter offers headers for the 4.0L OHV Ranger.

JBA offers headers and ignition wires for the four.0L Ranger.

Offers headers for the 4.0L engines.

Both offer cat-back exhaust systems for the Ranger.

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Modifications:

Head Porting:

Port your upper and lower intake. The intakes don't line upward bore to bore. Porting opens this upward and allows better flow. Knife border the intake side of the throttle body to remove the front end lip. Y'all can use a Dremel tool to grind, sand and buff this expanse to obtain a smooth airflow in to the engine. Y'all can likewise mill down the butterfly to blend in to the shaft for a smoother air flow.

For details on how to port your heads, click Here.

Ignition:

MSD - Manufactures a DIS ignition arrangement forth with wiring harnesses. Detect their parts at Summit Racing .

JetChip - Makes a module to reprogram the engines estimator. Click Here.

iv.0 Reckoner Numbers Submitted by: skineral

1991 Explorer 4.0 Manual Transmission 4x4

Dogie 3006 (F07F-12A650-YA) & (F07F-VAMR)
Fed 3007 (F07F-12A650-VA) & (F07F-VAMR)

1992 Explorer four.0 Transmission Transmission 4x4

Dogie 3397 (F27F-12A650-VC) & (F27F-12A650-VCMR)
Fed 3398 (F27F-12A650-TC) & (F27F-12A650-TCMR)

1993 Explorer 4.0 Manual Transmission 4x4

Calf 3729 ( F37F-12A650-XB) & (F37F12A650-CRA)
Fed 3726 (F37F-12A650-UC) & (F37F-12A650-Yr) & (YMBR)

1990 Ranger 4.0 Manual Manual 4x4