| |
Condition |
Possible
cause |
Remedy |
| 1 |
Shift
clutch slips at full throttle but not only just after
shifting. |
Clutch
linings oily, clutch defective, linkage incorrectly adjusted. |
Fit
new plate, eliminate oil leakage, fit new clutch, adjust
linkage, check if there is play in clutch linkage. |
| 2 |
Clutch
slips too long after gears has been shifted. |
Reducing
valve adjusting screw in too far, hose between carburator
and valve venting diaphragm leaking or off, venting diaphragm
defective. |
Adjust
correctly, fit new house, fit new diaphragm. |
| 3 |
Clutch
not disengaging properly. |
Linkage
not adjusted properly, leakage in hose or vacuum tank,
servo diaphragm defective, needle bearing in clutch defective. |
Adjust,
eliminate leakage, fit new servo, fit new needle bearing
and seal in clutch carrier plate. |
| 4 |
Clutch
not disengaging at all. |
Circuit
to solenoid interrupted, switch contacts burnt or dirty,
poor ground to body, solenoid in control valve defective,
hoses kinked or collapsed (no air passage) servo diaphragm
faulty, excessive voltage drop in cable to solenoid. |
Eliminate
fault, fit new fuse, clean contacts or fit new switch,
check ground connection, fit new solenoid, house or servo.
May be necessary to install a relay to cure voltage drop. |
| 5 |
Engine
stalls during gear shift |
Hose
from control valve to servo leaking, servo diaphragm leaking. |
Fit
new hose or new servo. |
| 6 |
Engine
stalls and cannot be started again. |
Hose
from manifold to control valve loose or defective, hose
from control valve to vacuum tank loose or defective,
tank leaking. |
Secure
hose or fit new, repair hose or replace vacuum unit. |
| 7 |
Clutch
does not engage after shifting down. |
Gear
level contacts sticking, ground in cable from contacts
to solenoid, control valve solenoid sticking. |
Clean
and free off contacts, fit new gear lever if necessary,
eliminate ground or fit new cable, fit new solenoid. |
| 8 |
Clutch
grabs after selecting a gear. |
Oil
or grease on clutch linings, friction surface of carrier
plate distorted. |
Fit
new plate, fit new carrier plate or machine old one. |
| 9 |
Vehicle
jerks at idling speed when lever is released after selecting
a gear. |
Idling
speed too high, control valve adjustment incorrect. |
Adjust
idling, adjust control valve. |
| 10 |
Noise
from converter (high-pitched hissing). |
Oil
level in container low, pressure low, converter losing
oil at pump hub or at welded seam between impeller and
turbine. |
Add
oil, strip and check pump, replace seal on pump hub, replace
converter. |
| 11 |
Poor
acceleration despite good engine output. |
Converter
faulty, check stall speed with aid of electronic rev counter,
should be between 2000-2500rpm. |
If
stall speed to high or too low, fit a new converter. |
| 12 |
Warning
lights do not work. The lights can be checked with a stall
speed test. Secure vehicle with hand and foot brakes,
engage 3rd and give full throttle. After about 2 minutes
oil temperature should reach 125 degrees C and lamp light
up. |
Lamp
or cable faulty or temperature switch defective. |
Replace
lamp, repair cable, replace defective switch. |
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