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8. Check fuel lines and hoses for splits,
leaks or kinks by disconnecting each section
of line and connect vacuum gage. Crank
or run engine until vacuum gage peaks.
Vacuum should be at least 12 inches. If
less, repair or replace defective line or
hose.
9. If fuel lines and pump check OK, remove
tank unit, replace strainer and clean fuel
tank, if necessary.
L. Hard Starting
-
Hot (Engine cranks OK)
1. Visually check the following:
a. Vacuum hoses for splits, kinks and proper
connections. See hose routing charts,
Section 6E.
b. Air leaks at carburetor mounting and intake
manifold.
c. Ignition wires for cracking, hardness,
proper connections, and carbon tracking.
Repair or replace as necessary.
2. Check ignition timing per emission control
information label.
NOTE: If timing is too early
-
speed up engine
to see if timing mark moves. If not, check
for stuck mechanical advance. Refer to
Section 6D. Repair as necessary and recheck
timing.
3. Check the following:
a. Choke, throttle linkage and fast idle
cam for sticking.
b. Carburetor flooding.
Clean and repair as necessary. If repairs
are necessary,
see
carburetor, cleaning
and inspection, Section 6C.
4. Connect secondary voltage output meter
or scope to engine. Using insulated pliers,
check output with spark plug wire removed.
Output voltage should read 25 KV or above.
If any reading is below specifications or
arcing occurs, turn off engine, remove
distributor cap and visually inspect for dust,
cracks, bums, etc.
Check distributor for:
a. Worn shaft
b. Bare and shorted wires
c. Faulty pick up coil, module, ignition
coil, and shorted condenser. Repair or
replace as necessary.
5. Remove spark plugs. Check for cracks,
wear, improper gap, burned electrodes,
heavy deposits.
Repair or replace as necessary.
6. Also check steps 6, 7, 8, 9
-
Hard Starting
-
Cold.
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