Morris

MORRIS
4 CYLINDER
1973-72 998cc Mini SU-1 HS-4 4330
1972 2275cc 2200 (2 Carb) SU-1 HS-6 4330
1972-71 1275cc 1275GT SU-1 HS-4 4330
1972-71 1275cc, 1798cc Marina SU-1 HS-4 4330
1.3, 1.8
1972-71 1798cc 1800 MK ll SU-1 HS-6 4330
1972-69 998cc, 1275cc Mini SU-1 HS-4 4330
Clubman
1972-68 848cc, 998cc Mini MK II SU-1 HS-2 4330
1972-67 1275cc 1300 SU-1 HS-4 4330
1971 1275cc 1300GT (2 Carb) SU-1 HS-4 4330
1971-70 1275cc Mini Cooper “S” SU-1 HS-2 4330
(2 Carb)
1971-67 848cc, 998cc Mini MK SU-1 HS-4 4330
1971-67 1098cc 1100 MK ll SU-1 HS-4 4330
1968 1798cc 1800 MK ll SU-1 HS-6 4330
1968-65 848cc Mini SU-1 HS-4 4330
1968-63 998cc Mini, Deluxe SU-1 HS-2 4330
1968-60 948cc, 1098cc SU-1 HS-2 4330
Minor 1000
1967-66 1798cc 1800 (2 Carb) SU-1 HS-6 4330
1967-65 1098cc 1100 SU-1 HS-4 4330
1967-64 998cc, 1070cc, 1275cc SU-1 HS-2 4330
MiniCooper, MiniCooper”S”
(2 Carb)
1966-61 1622cc Oxford Vl SU-1 HS-2 4330
1964 1798cc 1800 SU-1 HS-6 4330
1964-63 Oxford Hindustan SU-1 HS-2 4330
1962-61 948cc Minor, 997cc SU-1 HS-2 4330
Mini Cooper (2 Carb)
1962-59 848cc Mini Minor SU-1 HS-2 4330
1960-59 1498cc Oxford V SU-1 HS-2 4330
1959-48 948cc 1000 SU-1 HS-1, HS-2, 435

Recent Posts

Choke Types

We have 4 different types of chokes, Intregal, Divorced, Electric & Electric Conversion.

Intregal Choke

Integral ChokeThe integral choke is mounted on the carburetor, either near the top, or near the bottom. The illustration shows the choke mounted on the top of the carburetor. The thermostat is heated by a heat tube that runs down to the exhaust manifold. The heat tubes heats up the thermostat and moves the choke valve to the open position. A vacuum passage in the carburetor feeds up to the choke housing and helps pull in the heat from the heat tube. Some of these chokes will also have a hot water jacket running through, or on the thermostat to facilitate heating.

Divorced Choke

Divorced ChokeThe divorced choke typs has the thermostat mounted in the intake manifold instead of on the carburetor. In this illustration, the arrow points to the thermostat which is covered by a metal shield. A rod connects the thermostat to the choke lever, which controls the choke valve to be opened, or closed. As the intake manifold heats up, the thermostat mounted, expands, opening the choke valve.

 

Electric Choke

 

Electric ChokeThis is a typical electric choke mounted on the carburetor, which is integral. In this case there is one wire on the choke thermostat. This is the 12v source, which all electric chokes use. The thermostat is grounded via the carburetor itself. Some electric chokes will have a 2nd wire (ground wire), which is connected back to the carburetor. When the key is on the thermostat is heated up, opening the choke valve.

Electric Choke Conversion

 

Electric Choke ConversionThis is a typical electric choke conversion kit. This is used to convert an integral, or a divorced choke to an electric choke. These choke kits come with a temperature sensor that bolts on to the intake manifold, which provides more accurate choke control than with an electric choke without the gauge. The electric choke conversion kit is not used for a manual choke conversion. The choke housing must be in place in order for it to work.
This choke installs in 20 minutes or less with no special
tools. Remove the old choke thermostat and replace with this choke conversion kit.
Attach the temperature sensor under an existing engine bolt.
Wire the positive wire into the vehicles electrical system. Ground the choke to the carburetor.
Complete instructions are provided for each application.

 



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