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303-01A Engine - 1.7L|Description and Operation > < Cylinder Head Distortion
Engine - 1.7L - Specifications Puma 1998 (06/1997-12/2001)

Engine Data

Description 1,7 Zetec-S VCT
Engine management EEC V
Emission standard 96 EEC
Fuel 95 RON
Engine code MHA
Firing order 1 - 3 - 4 - 2
Bore mm 80,0
Stroke mm 83,5
Capacity cm3 1679
Compression ratio 10,3 : 1
Engine power output in accordance with EC guidelines kW (PS) 92 (125)
Engine power output in accordance with EC guidelines at rev/min 6300
Torque Nm 157
Torque at rev/min 4500
Compression pressure at starter motor speed bar 12,4

Engine Oil

Viscosity / ambient temperature Description Specification
Recommended engine oil
SAE 5W30 / below -20 to over 40 degrees Celsius Ford Formula E Economy Motor Oil WSS-M2C912-A1
Alternative engine oils
SAE 10W30 / -20 to over 40 degrees Celsius Ford Super Multigrade Motor Oil ACEA A1/B1 or A2/B2 and/or API/SH/CD EC
SAE 5W40 / below -20 to over 40 degrees Celsius Ford Formula S Synthetic Motor Oil ACEA A3/B3 and/or API/SH/CD EC
SAE 10W40 / -20 to over 40 degrees Celsius Ford XR+ High Performance High Lubricity Motor Oil ACEA A3/B3 and/or API/SH/CD EC

If engine oils with these specifications are not available then other engine oils may be used provided they meet at least the API/SH/CD EC specification.

Oil Pressure

Description
Oil pressure (minimum, oil temperature 80 degrees C) at 850 rev/min bar 1,0
Oil pressure (maximum, oil temperature 80 degrees C) at 6000 rev/min bar 4,0
Pressure relief valve opening pressure bar 4,3

Capacities

Litres
Engine oil, initial fill 4,67
Engine oil, oil change with filter change 4,62
Engine oil, oil change without filter change 4,15

Lubricants, Fluids, Sealers and Adhesives

Item Specification
Oil pan sealant WSE-M4G323-A4
Sealant, camshaft bearing caps WSK-M2G348-A5
Transmission fluid - manual transmission WSD-M2C200-C
Spark plug thread lubricant ESE-M12A4-A
Grease WSD-M1C227-A
Silicone grease ESE-M1C171-AA

Valves

Description 1,7 Zetec-S VCT
Valve control mm Bucket tappets
Valve clearance (engine cold), intake mm 0,15-0,25
Valve clearance (engine cold), exhaust mm 0,25-0,35
Thickness of adjustment shims mm 2,50-3,39
Adjustment shims available in steps of mm 0,05

Cylinder Block

Description 1,7 Zetec-S VCT
Number of main bearings 5
Cylinder bore ÀPÀ, class 1 mm 79,993-80,000
Cylinder bore ÀPÀ, class 2 mm 80,000-80,007
Cylinder bore ÀPÀ, class 3 mm 80,007-80,014
Cylinder bore ÀPÀ, class 4 mm 80,014-80,021
Cylinder bore ÀPÀ, class 5 mm 80,021-80,028
Crankshaft end float mm 0,22-0,43

Cylinder Head

Description 1,7 Zetec-S VCT
Maximum unevenness (mating face) mm 0,05

Camshafts

Description 1,7 Zetec-S VCT
Camshaft bearing diameter mm 25,000-25,021
Camshaft diameter (bearing journals) mm 24,959-24,975
Cam lift, intake camshaft mm 7,8
Cam lift, exhaust camshaft mm 6,65
Camshaft end float mm 0,10-0,24

Pistons

Description 1,7 Zetec-S VCT
Piston ÀPÀ, class 1 mm 79,976-79,983
Piston ÀPÀ, class 2 mm Measuring shim (mm) + 79,983-79,990
Piston ÀPÀ, class 3 mm 79,990-79,997
Piston ÀPÀ, class 4 mm 79,997-80,004
Piston ÀPÀ, class 5 mm 80,004-80,011
Piston ring gap, upper mm 0,2-0,3
Piston ring gap, middle mm 0,3-0,5
Piston ring gap, lower mm 0,15-0,65
Piston ring end float, upper mm 0,04-0,08
Piston ring end float, middle mm 0,03-0,07
Axial play, oil scraper ring mm 0,05-0,15

Big-end bearing shells

Big-end bearing journal diameter Big-end bore diameter Big-end bearing radial clearance Big-end bearing shell
mm mm mm mm
41,994-42,000 45,025-45,031 0,025-0,044 1,504 - 1,507 (blue)
45,031-45,038 0,024-0,044 1,507 - 1,510 (red)
45,380-45,045 0,023-0,044 1,510 - 1,513 (black)
41,987-41,993 45,025-45,031 0,026-0,045 1,507 - 1,510 (red)
45,031-45,038 0,025-0,045 1,510 - 1,513 (black)
45,380-45,045 0,024-0,045 1,513 - 1,516 (white)
41,980-41,986 45,025-45,031 0,027-0,045 1,510 - 1,513 (black)
45,031-45,038 0,026-0,045 1,513 - 1,516 (white)
45,380-45,045 0,025-0,045 1,516 - 1,519 (pink)

Torque Specifications

Description Nm lb-ft lb-in
Catalytic converter to exhaust manifold 47 35 -
Intake manifold to cylinder head 18 13 -
Intake manifold bracket to transmission 35 26 -
Catalytic converter bracket to cylinder block 47 35 -
Suspension arm to spindle carrier 52 38 -
Vibration damper to lower suspension arm 80 59 -
Battery cable to starter motor 6 - 53
Solenoid lead to starter motor 11 8 -
Radiator crossmember 25 18 -
Ground lead to transmission 33 24 -
Suspension strut nut 46 34 -
Drive belt idler pulley 25 18 -
Battery box 25 18 -
Power steering pump bracket to cylinder head. 24 18 -
High-pressure line to power steering pump 65 48 -
Exhaust pipe 47 35 -
Coolant pump to cylinder block 9 - 80
Compressor - Air Conditioning 25 18 -
Upper part of oil pan to cylinder block 20 15 -
Upper part of oil pan to clutch housing 44 32 -
Lower part of oil pan to cylinder block 9 - 80
Generator 49 36 -
Wiring to generator 11 8 -
Catalytic converter heat shield 6 - 53
Exhaust manifold heat shield 7 - 62
Gearshift stabiliser 55 41 -
Camshaft timing pulley (exhaust) 60 44 -
Camshaft timing pulley (intake) 105 77 -
Camshaft timing pulley blanking cap (intake) 38 28 -
Front engine mounting bracket 69 51 -
Front engine mounting bracket to cylinder block 55 41 -
Nut, rear engine mounting bracket 50 37 -
Rear engine mounting brace 11 8 -
Engine roll restrictor to engine 50 37 -
Engine roll restrictor to front crossmember 69 51 -
Coolant pump belt pulley 25 18 -
Drive belt idler pulley 25 18 -
Thermostat housing to cylinder block 9 - 80
Oil pump to cylinder block 9 - 80
Oil baffle plate to cylinder block 9 - 80
Oil pick-up pipe to oil baffle plate 9 - 80
Oil pressure switch to cylinder block 15 11 -
Oil dipstick tube to cylinder head 11 8 -
Oil drain plug 37 27 -
Oil filter 17 13 -
Bolt, transmission fluid check bore 35 26 -
Cylinder head bolts, stage 1. 15 11 -
Cylinder head bolts, stage 2. 30 22 -
Cylinder head bolts, stage 3. 90 ° 90 ° -
Cylinder head cover to cylinder head 10 - 89
Cover plate to cylinder head cover 6 - 53
Fuel distribution pipe to cylinder head 23 17 -
Exhaust manifold studs to cylinder head 17 13 -
Intake manifold studs to cylinder head 10 - 89
Coolant distribution pipe studs 10 - 89
Exhaust manifold to cylinder head 54 40 -
Camshaft position sensor (CMP sensor) to bracket 9 - 80
Camshaft position sensor bracket 9 - 80
Spark plugs 15 11 -
Engine lifting eye to engine (rear) 20 15 -
Engine lifting eye to engine (front) 50 37 -
EI ignition coil 6 - 53
VCT solenoid valve to cylinder head 9 - 80
Camshaft bearing caps, stage 1. 8 - 71
Camshaft bearing caps, stage 2. 17 13 -
Timing belt cover 9 - 80
Bracket, right-hand front axle halfshaft centre bearing 33 24 -
Retaining bracket, right-hand front axle halfshaft 18 13 -
Coolant distribution pipe to cylinder head 20 15 -
Coolant connection to cylinder head 9 - 80
Drive belt cover 6 - 53
Timing belt guard to cylinder block 9 - 80
Timing belt tensioner 35 26 -
Timing belt tensioner adjustment bolt 20 15 -
Crankshaft position sensor (CKP sensor) bracket to cylinder block 9 - 80
Crankshaft rear oil seal carrier 9 - 80
Crankcase breather to cylinder block 9 - 80
Blanking plug for timing peg bore, crankshaft TDC 25 18 -
Crankshaft pulley/vibration damper, stage 1 40 30 -
Crankshaft pulley/vibration damper, stage 2 90 ° 90 ° -
Big-end bearing cap to connecting rod, Stage 1 21 15 -
Big-end bearing cap to connecting rod, Stage 2 45 ° 45 ° -
Flywheel to crankshaft 85 63 -
Clutch pressure plate to flywheel 29 21 -

303-01A Engine - 1.7L|Description and Operation > < Cylinder Head Distortion