Volvo B16B Repair Instructions Download Page 8 | Manualshive

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Volvo B16B Repair Instructions Download Page 8

Excessively high fuel consumption

I ncorrectly fitted fuel needle.

Jet not being properly pressed up against the
adjuster nut, this resulting in excessively rich
fuel mixture.

Driving habits in many cases. Repeated fierce
acceleration and braking.

Adjust the fitting. See "Replacement of fuel

needle". Adjust the vertical position of the jet.

See under the heading "Idling adjustment and
coupling of carburetors".
Check or replace lever spring. Centralize jet.

Lower jet and smear exposed part with oil.

More sensible driving habits.

Leakage from the lower part of the jet

Replace the seal rings.

Seal rings damaged.

The cold starting device functions stiffly

Lower the jet and lubricate the exposed portion.
Centre sleeves, see "Centralizing the jet".

Chafing jet.

Jet sleeves badly centred.

TOOLS

( Only carburetor tools. See also Service Manual for B 16 A).

1

Wrench for adjuster nut.

SVO 2324

Gauge for float level.

SVO 2369

Centralizing tool for upper and lower

jet sleeves.

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Summary of Contents for B16B

Page 1: ...ow spindle on the suction chamber piston is filled with oil and functions together with the small damping plunger 3 Fig 8 as a damper This should be topped up with oil at regular inter vals for example when the engine oil is changed Screw off the nut at the top of the suction chamber lift up the nut and the damping plunger and top up with oil through the hole Fill only the centre spindle so that t...

Page 2: ...ed parts JET UNIT 1 Remove the return spring for the jet lever and the link rod between the lever and the cam shaped plate 2 Remove the bolt for the jet head and the upper bolt for the link and then remove the l ever See Fig 13 3 Remove the lock nut and take out the jet bearings with the spring and gland Pull out the jet Screw off the adjuster nut and remove its spring SUCTION CHAMBER WITH PISTON ...

Page 3: ...s very Fig 17 Attachment of fuel needle A attaching level important to ensure that the needle assumes the right depth See under the heading Replacement of fuel needle Do not tighten the float chamber hollow screws too hard otherwise the gaskets can be damaged The piston in the suction chamber is grooved and a guide projection in the carburetor housing fits into this groove Lubricate the piston spi...

Page 4: ...shers for the upper and lower seals should be in contact with the spring Fig 18 Centralizing the jet Fig 19 Setting the adjuster nut 3 Push in the jet together with the assembled parts into the carburetor housing see Fig 15 Screw on the lock nut loosely Centralize the jet as shown below and then fit the lever and the other disassembled parts Centralizing the jet In order to ensure that the carbure...

Page 5: ...e carburetors are connected together in order to get the highest output from the engine 1 Run the engine until it is thoroughly warmed up If the jets have not been adjusted a rough adjustment can be first carried out by screwing the adjuster nuts to their upper position and then screwing them down again one complete turn 2 Loosen one of the connections 9 Fig 4 on the shaft between the carburetors ...

Page 6: ...ed out as far as it will go the long lever ends should be lifted so far that the jets are completely lowered i e the levers should contact the stops in the li nks Make sure that both levers are influenced to the same extent through the curved cable so that both jets start to move downwards at the same time Throttle setting The position of the accelerator pedal should be adjusted so that there is a...

Page 7: ...carburetors 2 14 FAULT TRACING FAULT stances be blocked since this can prevent the carburetor in question from operating correctly Fuel Since this engine has a comparatively high com pression ratio fuel with an octane rating of 93 Research should be used fuel is reaching the carburetors that the spark plugs are working correctly and are receiving electric current that all the controls are func tio...

Page 8: ... and coupling of carburetors Check or replace lever spring Centralize jet Lower jet and smear exposed part with oil More sensible driving habits Leakage from the lower part of the jet Replace the seal rings Seal rings damaged The cold starting device functions stiffly Lower the jet and lubricate the exposed portion Centre sleeves see Centralizing the jet Chafing jet Jet sleeves badly centred TOOLS...

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