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Rover Group - K Series Development
Rover Group - K Series Development
Published: 2015/01/29
Channel: Rover Group Online
MG Rover K Series Head Gaskets Review - The 3 Types, why 2 fail and the ultimate solution
MG Rover K Series Head Gaskets Review - The 3 Types, why 2 fail and the ultimate solution
Published: 2016/09/06
Channel: comeinhandynow
K series - How to make it Reliable. 4 steps. N series gasket, oil rail, PRT, bolts
K series - How to make it Reliable. 4 steps. N series gasket, oil rail, PRT, bolts
Published: 2017/02/24
Channel: comeinhandynow
Lotus K Series Engine Test
Lotus K Series Engine Test
Published: 2009/07/27
Channel: Morbst
Rover K-Series Engine Part One
Rover K-Series Engine Part One
Published: 2008/12/14
Channel: rovamota
Rover K-Series Engine Head Gasket Advice
Rover K-Series Engine Head Gasket Advice
Published: 2013/08/05
Channel: Men and Motors
1.9 Rover K-series turbo - BRM
1.9 Rover K-series turbo - BRM
Published: 2016/11/22
Channel: Stuart Farlow
Rover 1.8 Variable Valve Control Understanding -
Rover 1.8 Variable Valve Control Understanding -
Published: 2015/01/11
Channel: Rover 200 & 400 Owners Club
Rover K Series cylinder head rebuild part 1.
Rover K Series cylinder head rebuild part 1.
Published: 2011/10/16
Channel: Vorsprungdurchturbo
Stripping a k-series head
Stripping a k-series head
Published: 2009/05/25
Channel: tiggermail0101
Tuned Elise 111s  Dyno run
Tuned Elise 111s Dyno run
Published: 2015/03/01
Channel: The Demented Monkeys
Rover K-Series Engine Part Two
Rover K-Series Engine Part Two
Published: 2008/12/14
Channel: rovamota
Rover K-series turbo BRM first start
Rover K-series turbo BRM first start
Published: 2015/12/29
Channel: Stuart Farlow
ROVER K Series Cambelt Change Video
ROVER K Series Cambelt Change Video
Published: 2012/05/04
Channel: metalworker007
Rover K-Series Supercharger Kit - Mapping
Rover K-Series Supercharger Kit - Mapping
Published: 2011/11/30
Channel: Hangar111 Lotus
Rover 1.8 K series HGF head gasket failure
Rover 1.8 K series HGF head gasket failure
Published: 2015/07/22
Channel: David Ashton
Rover K series tapping noise
Rover K series tapping noise
Published: 2011/06/09
Channel: Brendan Tennant
Lotus elise Engine for sale DVA K04 165 bhp(Rover K Series)
Lotus elise Engine for sale DVA K04 165 bhp(Rover K Series)
Published: 2012/04/27
Channel: pantelis01
MG Rover K series VVC Timing Check and Fix - Stuck at only 5500rpm max?
MG Rover K series VVC Timing Check and Fix - Stuck at only 5500rpm max?
Published: 2015/06/14
Channel: comeinhandynow
Rover Head Gaskit Repair k-SERIES Part 3 (HD)
Rover Head Gaskit Repair k-SERIES Part 3 (HD)
Published: 2011/07/27
Channel: Liamautomechanic
K series fitted to Rover 100, runs on R1 bike carbs and MegaJolt ignition
K series fitted to Rover 100, runs on R1 bike carbs and MegaJolt ignition
Published: 2016/03/20
Channel: tomreid7
Land Rover Freelander 1.8 k-series engine sump filled with water.
Land Rover Freelander 1.8 k-series engine sump filled with water.
Published: 2012/02/19
Channel: bowman_concepts
Rover K-Series Dyno
Rover K-Series Dyno
Published: 2011/02/12
Channel: ExonXE
Rover 25 (K series 1.4 16v), starting up after head gasket replacement
Rover 25 (K series 1.4 16v), starting up after head gasket replacement
Published: 2016/07/17
Channel: Dave La Rave
Lotus Elise 111S 160 VVC K Series Engine Start up from cold
Lotus Elise 111S 160 VVC K Series Engine Start up from cold
Published: 2012/06/22
Channel: DJWilma
Dan Spilling
Dan Spilling's HL Mini with K-Series power
Published: 2014/04/11
Channel: MiniWorldmagazine
Classic Mini 1.8 VVC Rover K series 0 - 60
Classic Mini 1.8 VVC Rover K series 0 - 60
Published: 2016/12/13
Channel: ChrisBoostedMini
2000 Lotus Elise with the Rover K Series Engine
2000 Lotus Elise with the Rover K Series Engine
Published: 2014/12/29
Channel: Karen Hoisington
Rover K-series turbo BRM
Rover K-series turbo BRM
Published: 2015/12/29
Channel: Stuart Farlow
The Longbolt (Rover  K-Series)
The Longbolt (Rover K-Series)
Published: 2010/11/14
Channel: Rover 200 & 400 Owners Club
ROVER / MG 1.8 K SERIES ENGINE
ROVER / MG 1.8 K SERIES ENGINE
Published: 2014/06/24
Channel: hessle piker
Rover K-series Head Gasket Cooling Issues
Rover K-series Head Gasket Cooling Issues
Published: 2010/03/24
Channel: AutoInform
ROVER K SERIES CYLINDER HEAD SKIM
ROVER K SERIES CYLINDER HEAD SKIM
Published: 2011/05/18
Channel: meanfazer
Thermostat housing water leak Rover K series engine in a classic Mini.
Thermostat housing water leak Rover K series engine in a classic Mini.
Published: 2017/01/02
Channel: Andrew Goater
Landrover Freelander Cylinder Head: Off 1.8 K Series Snapped Bolt Vid 1
Landrover Freelander Cylinder Head: Off 1.8 K Series Snapped Bolt Vid 1
Published: 2012/10/19
Channel: retrorestore
MG TF turbo VF35 dyno run Rover k series 1.8 310hp
MG TF turbo VF35 dyno run Rover k series 1.8 310hp
Published: 2017/01/14
Channel: Kwstasrwd Kostasrwd
Rover K-Series
Rover K-Series 'Engine Shuffle' Fix
Published: 2013/08/14
Channel: Men and Motors
Cadwell Park 18 4 2016 Classic Mini, Rover K series VVC engine. MGoT
Cadwell Park 18 4 2016 Classic Mini, Rover K series VVC engine. MGoT
Published: 2016/04/20
Channel: Andrew Goater
Lotus Exige with Rover K series Turbo, low compression engine and chargecooled
Lotus Exige with Rover K series Turbo, low compression engine and chargecooled
Published: 2013/12/23
Channel: turbotoaster1984
Austin Healey Sprite Rover K Series
Austin Healey Sprite Rover K Series
Published: 2012/08/04
Channel: Melanie Jackson
Elise S1 Engine swap for Sabre Heads Rover K-Series
Elise S1 Engine swap for Sabre Heads Rover K-Series
Published: 2012/10/04
Channel: OneElevenVVC
Classic mini 1.8 16v turbo K series walk around
Classic mini 1.8 16v turbo K series walk around
Published: 2016/12/29
Channel: ChrisBoostedMini
FREELANDER 25 45 75 ROVER K SERIES 1.8 Engine Complete Free P&p 58k
FREELANDER 25 45 75 ROVER K SERIES 1.8 Engine Complete Free P&p 58k
Published: 2015/06/10
Channel: Cameron McGregor
The K-Series Tuning Checklist
The K-Series Tuning Checklist
Published: 2016/08/31
Channel: Evans Tuning
Rover 1.8 k series turbo metro
Rover 1.8 k series turbo metro
Published: 2015/05/01
Channel: Sean Waite
Caterham R400 Rover K series Dyno Run
Caterham R400 Rover K series Dyno Run
Published: 2016/10/26
Channel: Max Mustermann
rover 75 1.8k series engine rebuilded
rover 75 1.8k series engine rebuilded
Published: 2012/06/05
Channel: alex nitulescu
Caterham 7 with 1.8 Rover K series engine, Emerald ecu and ADE Tuning custom remap
Caterham 7 with 1.8 Rover K series engine, Emerald ecu and ADE Tuning custom remap
Published: 2017/07/06
Channel: ADE Tuning
K-series bare timing cams k16 mg rover zr zs zt 25
K-series bare timing cams k16 mg rover zr zs zt 25
Published: 2013/07/12
Channel: shaun cross
rover k series engine leaking inlet manifold
rover k series engine leaking inlet manifold
Published: 2009/06/06
Channel: simontr6
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WIKIPEDIA ARTICLE

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Rover K Series
MG 7 black 2008 engine.jpg
Overview
Manufacturer Rover Group
MG Rover Group/Powertrain Ltd
Production 1988-2005 (K-Series)
Combustion chamber
Configuration Straight-4
Displacement 1,120 cc (68 cu in) to 1,796 cc (109.6 cu in)
Cylinder block alloy cast Aluminium
Cylinder head alloy cast Aluminium
Valvetrain SOHC and DOHC
Combustion
Fuel system Carburetor or Rover MEMS
Fuel type petrol
Cooling system water-cooled
Chronology
Predecessor
Successor SAIC Kavachi Engine

The K-Series engine is a series of engines built by Powertrain Ltd, a sister company of MG Rover. The engine was built in two forms: a straight-four cylinder, available with SOHC and DOHC, ranging from 1.1 litres to 1.8 litres. Although similar in name, the later introduced KV6 is not related.

Design history[edit]

The cylinder block of a United Kingdom Rover K-series 16-valve DOHC engine with damp liner cylinders

The K-Series was introduced in 1988 by Rover Group as a powerplant for the Rover 200 car. It was the second volume-production implementation of the low-pressure sand-casting (or LPS) technique in a new plant sited between East Works and Cofton Hackett. (The first volume application of the LPS process had been for the M-16 cylinder head, produced in South Works, adjacent to the former forge). The LPS process pumped liquid aluminium into a chemically-bonded sand mould from below. This reduced oxide inclusions and gave a casting yield of around 90%, compared with 60% for more conventional gravity casting processes. The process avoided many of the inherent problems of casting aluminium components and consequently permitted lower casting wall thickness and higher strength-to-weight ratios. However, the process required the use of heat-treated LM25 material which gave the engines a reputation for being fragile. An engine overheat would often result in the material becoming annealed and rendering the components scrap. The aluminium engine blocks were fitted with spun-cast iron cylinder liners that were initially manufactured by GKN's Sheepbridge Stokes of Chesterfield, but these were replaced by liners made by Goetze after some seminal research conducted by Charles Bernstein at Longbridge,[citation needed] which proved influential even to Ducati for their race engines. Unfortunately a large number of aftermarket engines, the so-called "VHPD"s", were built with the old substandard GKNs by Minister, Lotus and PTP well after the Goetze liner's introduction to the production line in 2000.

The engine was introduced initially in 1.1-litre single overhead cam and 1.4-litre dual overhead cam versions. Because Honda stopped providing Rover with engines after the end of their relationship, but well before the BMW takeover, an enlargement of the K Series design to 1.6 and 1.8 litres was carried out. This was done by using larger diameter cylinder liners and also increasing the stroke. The change required a block redesign with the removal of the cylinder block's top deck and a change from "wet" liners to "damp" liners.[1] The plastic throttle body fitted to the engine until 2001 was manufactured by the SU Carburettor company. They also included aluminium and larger sized bodies.

The four-cylinder engines were held together as a sandwich of components by long through-bolts which held the engine under compression, though this construction is not unknown, and was used in early lightweight fighter engines from the First World War. It had also been used in motorcycle engines and Triumph Car's "Sabrina" race engine.

The two types of head that were bolted to the common four-cylinder block were designated K8 (8 valves) and K16 (16 valves). A later head design also incorporated a Rover-designed Variable Valve Control (VVC) unit (derived from an expired AP patent). This allowed more power to be developed without compromising low-speed torque and flexibility. The VVC system constantly alters the inlet cam period, resulting in a remarkably flexible drive: the torque curve of a VVC K-series engine is virtually flat throughout the rev range and power climbs steadily with no fall-off whatsoever until the rev limiter kicks in at 7,200 rpm.

Following the collapse of MG Rover in 2005, the Chinese automaker Nanjing Automobile acquired the Longbridge plant and the intellectual property rights to many designs, including those of the K series engine. The Chinese owner, now SAIC Motor, went on to further develop the K series engine, renaming it "N series" and using it to power its current range of MG cars, the MG 6. The revisions included a different design of cylinder head gasket, higher tensile strength through-bolts and a stronger oil-rail fitted in the bottom end of the engine that the through bolts screw into. These revisions are sold by the British company XPart to solve the issues that some K series engines had of cylinder head gasket failure.[2]

Engine management[edit]

K8 engine[edit]

Early K8 engines used a single SU KIF carburetter with a manual choke and a breaker-less distributor mounted on the end of the camshaft. MEMS Single point injection became standard with the launch of the Rover 100 in 1994.

K16[edit]

K16 models used MEMS, with a 1.6 ECU from 1990 until 1994 and a 1.9 ECU from 1995 onwards, in either Single Point or Multi Point forms, with a single coil on the back of the engine block and a distributor cap and rotor arm on the end of the inlet camshaft. MEMS 2J was used on the VVC engine, to control the Variable Valve Control and the distributorless ignition system, which was used because there were camshaft drive belts at both ends of the engine. With the launch of the Rover 25 and Rover 45 in 1999, MEMS 3 was introduced, with twin coils and sequential injection.

Model range[edit]

1100[edit]

All 1100 engines displace 1.1 L (1,120 cc/68 cu in). Four variations were created:

  • SOHC K8 8-valve, Carburettor, 60 hp (44 kW)
  • SOHC K8 8-valve, SPI, 60 hp (44 kW)
  • SOHC K8 8-valve, MPI, 60 hp (44 kW)
  • DOHC K16 16-valve, MPI, 75 hp (55 kW)

Cars that came with the 1100:

1400[edit]

1.4-litre DOHC K-Series engine in a MG ZR

Engine Codes: 14K2F (8V), 14K4F (16V), 14K16 (16V)?

All 1400 engines displace 1.4 L (1,396 cc/85 cu in). Six variations were created:

  • SOHC K8 8-valve, Carburettor, 75 hp (55 kW)
  • SOHC K8 8-valve, SPI, 75 hp (55 kW)
  • SOHC K8 8-valve, MPI, 75 hp (55 kW)
  • DOHC K16 16-valve, SPI, 90 hp (66 kW)
  • DOHC K16 16-valve, MPI, 82 hp (61 kW)
  • DOHC K16 16-valve, MPI, 103 hp (76 kW)

The K16 82 hp variant is exactly the same as the 103 hp (77 kW) version, apart from a restrictive throttle body designed to lower the car's insurance group. This can be converted to the 103 hp (77 kW) model by changing to the unrestricted throttle body of a 103 engine. The 90 hp (67 kW) Spi features single-point fuel injection rather than the multi-point of the later engine.

Cars that came with the 1400:

1600[edit]

Engine Code: 16K4F

All 1600 engines displace 1.6 L (1,588 cc/96 cu in) and have DOHC, 16 valves and MPI. Two variations were created:

  • 109 hp (80 kW)
  • 111 hp (82 kW)

Cars that came with the 1600:

  • Rover 200
  • Rover 25
  • Rover Streetwise
  • Rover 400
  • Rover 45
  • MG ZS
  • MG F
  • MG TF
  • Caterham Seven

1800[edit]

MG ZR 160 1.800cc TRON 2.0 MKII 2004 DOHC K-Series 160 HP VVC engine in a MG ZR
MG ZR 160 1.800cc TRON 2.0 MKII 2004 DOHC K-Series 160 HP VVC engine in a MG ZR
MG ZR 160 1.800cc TRON 2.0 MKII 2004 DOHC K-Series 160 HP VVC engine in a MG ZR
Rover K-Series turbo in a Rover 25

Engine Codes: 18K4F, 18K4K (VVC variants)

All 1800 engines displace 1.8 L (1,796 cc/109 cu in) and have DOHC, 16 valves and MPI. Six versions were created:

  • 117 hp @5500rpm /160Nm@4000rpm
  • 136 hp (100 kW)@6750rpm/ 165Nm@3000rpm
  • VVC, 143 hp@7000rpm (107 kW) / 174Nm@4500rpm
  • VVC, 158 hp@7000rpm(118 kW) / 174Nm@4700rpm
  • turbocharged, 150 to 160 hp (110 to 118 kW)
  • VHPD - Very High Performance Derivative, 177 hp (130 kW) or 192 hp (142 kW) (Lotus version) (Uses VVC unique cylinder head casting (similar to VVC casting), has big valves, but with fixed cam timing - No development input was requested from Rover)

Cars that came with the 1800:

  • Rover 200 (120HP, 145 HP VVC)
  • Rover 25 (120HP, 145 HP VVC)
  • Rover 45 (120 HP)
  • Rover Streetwise (120HP)
  • Rover 75 (120 HP, 150 HP Turbo)
  • MG ZR (120 HP and 160 HP VVC)
  • MG ZS (120 HP)
  • MG ZT (120HP, 160 HP Turbo)
  • MG F (120 HP, 145 HP VVC and 160 HP VVC)
  • MG TF (120HP, 135 HP and 160 HP VVC)
  • Ariel Atom1
  • Lotus Elise
  • Land Rover Freelander (120 HP)
  • Caterham Seven
  • GTM Libra

Kavachi engine[edit]

Kavachi engine is an improved version of the Rover K-Series, using a different turbo and gearbox, improved head gasket and strengthened block. It is only available in 1.8 (1796 cc) version.

References[edit]

  1. ^ Adcock, Ian (1996). Project Phoenix: the birth of the MGF. Bloomsbury. p. 175. ISBN 0-7475-2695-8. 
  2. ^ "XPart provides Caterham owners with ‘ultimate fix’ for K-series engine". Motorsport Industry Association. 2 December 2009. Retrieved 1 March 2014. 

External links[edit]

Further reading[edit]

  • Engine Overhaul Manual. Rover K-Series. MG Rover Group. 
  • Hammill, Des (2008). The Rover K-series 16V Engine. 1989-2005. CP Press. ISBN 1-84155-688-2. 

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