Mazda diesel engines

Mazda has a long history of building its own diesel engines, with the exception of a few units that were built under license.

Inline-fours

PN - - Used in the Mazda Familia and Ford Laser
R2 - - Used in the 1984 onwards Mazda Bongo
SL - - Used in the T3500 light truck (Mazda Titan), at 3200 rpm and at 2000 rpm
TF - -
TM - -
VS - -
WL - , bore x stroke - naturally aspirated or turbodiesel, used in non-US 1995 Mazda MPV, various Mazda B-Series trucks.
W9 - , bore x stroke - naturally aspirated diesel, an enlarged version of the WL
XB - - , used in 1973 Mazda Parkway (AEXC), E2700 Van and T2700 Titan.
XC - -

Perkins 200 series

The Perkins 200 series engines (GA/GB/GC in internal parlance) were manufactured by licensee Toyo Kogo (Mazda) for use in automotive and other applications. Perkins 4.135, 4.154, and 4.182 manufactured replacement engine parts are used interchangeably in the Mazda S2, XA, and HA engines, respectively.

S2 - - License built Perkins 4.135 related to HA and XA, used in 1979 to 1986 Mazda Luce, Bongo/E2200, B2200, Ford Ranger
XA - - License built Perkins 4.154 related to HA and S2, used in 1970 Mazda E2500 and 1971 Mazda Titan, Mazda Light Bus, Mazda Parkway and some Bobcat skid-steer loaders. A six-cylinder version of this is called the "YA".
HA - - License built Perkins 4.182 related to S2 and XA

All of these engines have cast iron blocks and heads, two overhead valves per cylinder driven by maintenance-free timing gears, crossflow heads, are indirect injection. US-market B2200 and Ford Ranger trucks - and possibly the others as well - had rotary Bosch VE-style injection pumps, built by Diesel Kiki under license from Bosch.

RF series

1983

A diesel variation of the FE engine which shares its square internal dimensions of bore and stroke - it is virtually the same block, with identical bell housing pattern and block dimensions. This could be a testament to the F-block's strength as it was over-built for naturally aspirated duty. Its alloy head is entirely different though, with valves directly actuated rather than the rockers of the FE. The glow plugs are located in remote combustion chambers, with fuel delivered by a mechanical pump. The RF is light, with the original naturally aspirated version weighing in at , ; more than the FE. The RF The RF and R2 continue production to this day as the MZR-CD, with counter-rotating balance-shafts mounted between the engine block and oil pan as well as much evolved head and direct-injection technology. The RF is a SOHC, two valves-per-cylinder engine. One of Mazda's more popular diesel engines, it was also available with a pressure wave supercharger called Comprex.

Applications:

1984–1992 Mazda Capella/626

::* at 4000 rpm, at 2750 rpm (DIN, naturally aspirated EU version)

1983–1990 Mazda E-series
1999-2005 Mazda Premacy
1999 Mazda 626
1984–1986 Ford Tempo/Mercury Topaz
1984–1987 Ford Escort/Mercury Lynx (North America)
1988–1991 Kia Concord
1998–2003 Kia Sportage, Turbo-intercooler diesel variant released for Asia
1994–1998 Suzuki Vitara
1998–2003 Suzuki Grand Vitara

1997

The emission improved version used in the Mazda 323 from mid-1997 adopted a new swirl chamber with an enlarged volume, revised swirl-chamber-to-main-chamber ratio and a narrower throat area. Engine produces at 4500 rpm on a raised 21.7:1 compression ratio, and has an exceptionally wide spread of torque throughout its range, peaking with at 3000 rpm.

Further engine features:

optimized intake manifold, with inertia moment effect flow
camshaft with Mazda's Multi-Function cam profile theory (increases valve lift to and enhances the engine's volumetric efficiency at lower speed range, resulting in an improved torque output, never falling below between 1500 rpm and 4500 rpm)
electrically controlled distributor-type fuel injection pump
electronically controlled EGR valve

Engines were mounted in:

Mazda 323 P 3D hatchback and 4D sedan since June 1997
Mazda 323 5D hatchback since August 1998

RF-CX Comprex

ABB Comprex pressure wave supercharger
at 4,000 rpm, at 2000 rpm (JDM 1987)
at 4,000 rpm, at 2000 rpm (JIS Netto, JDM Comprex 1991)
ZB - - Mazda Boxer (EZA), Mazda Titan (2nd generation), Asia/Kia Combi - originally called the Perkins 6.247.
ZC - -