Page 122 - Mechanic Diesel - TT

MECHANIC DIESEL - CITS

3 Horse by pumping low speed jet from idle screw to become closed.
4 Shutdown of the jet installed on the idle port.
5 Leaking of the gasket below the Carburetor.
6 Entering the intake manifold. (For those vehicles which have wipers fitted on vacuum operatic wings).
3 Idle and slow speed go of rich mixture (Rich Mixture on Idle or Slow Speed)

1 opening of low speed jet opening or Keep flowing.
2 The bypass smells like garbage and the amber-bleed smells like garbage.
3 The idle port gets damaged.
4 Idle screw clutches cut off.

5 Improper fit of throttle valve.
4 Less petrol consumption in high speed circuit (High Speed Circuit-Lean Condition)
1 low fuel pressure.
2 blockage in fuel line.
3 float ball level set low.

4 Needle seat not working properly or needle seat being fitted wrongly.
5 Metering rod accidentally set too long.
6 Shortening of metering rod jet.
7 Poor connection between metering rod and throttle opening.

8 Clogged opening from metering jet to nozzle.
9 Throttle or throttle shaft or bushing wear.
5 Rich fuel going into high speed circuit (Rich fuel in High Speed circuit)
1 Excessive pressure in the fuel pump.
2 Level of float ball being set high.
3 Looseness of the gasket or screw of the float ball cover.

4 Spring of metering rod coming out.
5 Spring of metering rod coming out.
6 Metering rod becoming banded.
7 Choke valve slightly closed.

8 Air-bleed hole closes up to main nozzle.
6 While accelerating, the accelerator pump does not send enough petrol or the engine does not pick up
quickly. (Accelerator Pump Sending Lean Mixture on Acceleration)

1 Weakening of the spring of the plunger.
2 The washer inside the plunger becomes dry, cut or loose.
3 Leaking valve in feed pump.
4 The petrol pipe coming from the feed pump gets clogged or choked.
5 Slight closure of accelerator jet.
6 Stroke of the pump not being complete.

7 Accelerator pump sending more petrol while accelerating (Accelerate Pump Sending Too Rich Mixture
on Acceleration)
1 Increase in stroke of accelerator pump.

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CITS : Automotive - Mechanic Diesel - Lesson 29 & 30 CITS : Automotive - Mechanic Diesel - Lesson 29 & 30