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Nissan calls the housing for the thermostat the "Water Outlet".
Contents |
Overview
B110 11062-18000 GASKET-WATER OUTLET 11060-G0300 OUTLET-WATER 11060-H7000 OUTLET-WATER USA MANUAL from 0373
G03 | H70
A-engine Variations
There are a number of different types of water outlets for A-series engines.
Gasket Types (2-bolt, 3-bolt, 4-bolt)
45-degree outlet | 90-degree outlet
3-bolt and 4-bolt types have accessory bolt bosses
* 2-bolt Type -- as used by early engines, and some late engines * 3-bolt Type -- newer engines, with extra mounting bosses * 4-bolt Type -- newer engines, notably those with Air Passage
4-bolt Type | Air Passage (red arrow)
A most important difference is whether it fits over the Air Passage in some cylinders heads.
It further breaks down:
* 2-bolt Type -- as used by Datsun 1200 * B10/B110 Type, outlet points 180 degrees * Late B110 USA -- with boss for thermo switch * B210/B310 Type-Outlet points 225 degrees * 3-bolt Type * with accessory mounting bosses * 4-bolt Type -- as used by some newer engines * with accessory mounting bosses and Air fitting * with accessory mounting bosses (forward) and Air fitting
Head Mating Surface
Starting with the 1973/974 A Engine Redesign, all A-series cylinder heads featured an alternator placed on the right side of engine. This in turn necessitated adding a bolt hole to the front face of the head next to the water outlet (the hole is for the alternator mounting tension bracket).
This means the water outlet was rotated up so as to not cover the bolt. This in turn means the radiator hose location is different, even though the first year B210 radiator is otherwise nearly identical to the B110.
1974-up engine w/bolt hole | 1966-1973 w/o alternator bolt hole
Head Mating Surface: 1974-up engine with Air passage | Adapter covers a hole, allowing old-style housing
Housing Part Numbers
NOTES:
- CAL = California
- CAN = Canada
- FED = USA, except California
- GFU = 5-speed Round-port A14 engine
- JDM = Japan Domestic Market
- Gasket is also called "WASHER-JOINT WATER OUTLET"
The 4-bolt gasket works on a 2-bolt housing.
2-bolt Type
The 2-bolt type is used by B10 and B110. It is also used by B210/B310 engines that do not have an Air Injection passage in the cylinder head.
11062-18000 GASKET-WATER OUTLET
2-bolt Type Thermostat housings attaches radiator hose at:
* B110: 9:00 o'clock (180 degrees)* B10/B210/B310: 10:30 o'clock (225 degrees) to clear belt of high-mounted alternator
7:30 Outlet
It points straight to the side when installed.
11060-G0300 OUTLET-WATER B110 * also used on JDM C20 "Sunny Cab" with A10 engine
B110 housing and original fittings
Aftermarket KILKENNY CASTINGS WO27 * suits 11060-G0300
WO27 (not WO27A)
KILKENNY CASTINGS WO27A (QWO27, MPO27 etc)
#11060-H7000 OUTLET-WATER B110 MANUAL from 0373 USA
9:00 Outlet
B10 & B210 - outlet points slightly up when installed
11060-18000 OUTLET-WATER B10
11062-H7201 GASKET-WATER OUTLET * 11060-H5000 OUTLET-WATER B210 A13 USA 1974, A12 JDM early * 11060-H5000 OUTLET-WATER B310 A12,A13,A14,A15 JDM 8011- * 11060-H5000 OUTLET-WATER B120 A12 -8910 * 11060-H5000 OUTLET-WATER B310 A12A CAL from 0879 * 11060-H5000 B310 JDM -8109 VAN 7901-8010 A12S.S,K+14.V 8011- ALL
KILKENNY CASTINGS WO27A
You can see how on newer engines, the alternator bracket bolts next to the outlet. This requires the outlet at 45 degrees up so the bolt is uncovered.
Late B120
11060-G2500 OUTLET-WATER B120 A12 8910- * 11062-H7201 GASKET-WATER OUTLET -9202 * 11062-18000 GASKET-WATER OUTLET 9202-
11060-H7000
Late 1973 USA has a threaded boss for a water temperature switch.
11060-H7000 OUTLET-WATER B110 USA MANUAL from 0373 * Has boss for temp switch * 22120-U2001 ASSY-SWITCH WATER TEMP from 0373 same switch used by: * L16-powered 620 USA for EGR * 1973 510
Everco part number W2499 similar but is heavy cast iron (all factory housing are light alloy, so this is incorrect material)
The purpose of the late 1973 water temp switch is unknown, but it might replace the ambient air temp switch of the TCVAS system. In other Datsun models it was used to disable EGR, including PB110 L14 engine (in thermostat housing) and EGI A14E engine (in EGR adapter on intake manifold). On the 1974 L18-powered 620, it was activated at 120 degrees, so it is the wrong temp to be used to control a radiator fan.
FWD
11060-M0100 E10 Cherry 2-bolt with accessories boss A10,A12
3-bolt Type
11062-M3001 GASKET-WATER OUTLET * can use 4-bolt gasket
The 3-bolt water outlet was used in newer engines that do not have an air port in the front of the cylinder head -- and that do not have the alternator bracket bolted to the front of the head. In this case, the outlet can exit more to the side, even covering the high bolt hole.
5-bolt Head Face, adds right-side low Alternator Mounting
11060-M3001 OUTLET-WATER * B310 JDM -7812 A12 S,K; A14 V * B310 FED A14,A15 * B310 AUS A14 Wagon 11060-M3010 * N10 JDM A12,A14 Aftermarket: KILKENNY CASTINGS WO92 (THO-60, QTH etc)
3-bolt type fastening housing to head. With two accessories bosses pointing up
4-bolt Type
11062-H7201 GASKET-WATER OUTLET
All engines with Air passage in the cylinder head require a 4-bolt housing and gasket. Some newer engines without Air system also use the 4-bolt kit.
4-bolt
Smog Pump Type - bosses up
11060-H7201 OUTLET-WATER B210 A14 USA 11060-H7400 OUTLET-WATER * B210 A14 FED GFU from 1276 * B210 A12 JDM late, A14 * F10 A14 USA * A10 JDM A14S.S,K -7803
H74 1977 B210 Coupe A14 5-speed GFU
Air Induction Type - 1 Boss Forward, 1 boss up
11060-H9100 OUTLET-WATER B310 A14,A15 CAL,CAN * 11062-H7201 GASKET-WATER OUTLET B310 A14,A15 CAL,CAN 11060-H9100 OUTLET-WATER B310 A12A from 1278 * 11062-H7201 GASKET-WATER OUTLET A12A CAN from 1278 * 11062-M3001 GASKET-WATER OUTLET A12A FED from 0879
Photo Index
A14/A15 high angle
Thermo Switch Housing
Late, Accessory bracket type
