ENGINE TROUBLE DIAGNOSIS AND CORRECTIONS#1
Engine Will Not Start.
POSSIBLE CAUSES
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REMEDIES
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| 1) Weak battery. |
1) Check and re-charge battery as recommended under «Battery». |
| 2) Corroded or loose battery terminal connections. |
2) Clean, examine and tighten cable clamps to battery terminals, as recommended under « Battery ». Replace cables and clamps if they are too much corroded. |
| 3) Weak coil. |
3) Check coil and replace by a new one. |
| 4) Loose or broken ignition cables from coil to distributor and from distributor to spark plugs. |
4) Examine and re-set circuit or replace faulty cables. |
| 5) Cracked distributor cap. |
5) Replace cap. |
| 6) Moisture or dirt deposits on distributor cap contact points. |
6) Wipe and clean points. |
| 7) Distributor breaker contact points dirty, oxidized or blackened; pitted points or excessive point gap. |
7) Clean contacts and adjust point gap as recommended under « Ignition Distributor ». |
| 8) Distributor rotor cracked, or showing signs of burning or wet. |
8) Clean or replace rotor, if necessary. |
| 9) Center distributor cap contact worn or broken or with distorted pressure spring. |
9) Replace contact and contact spring. |
| 10) Shorted condenser or with poor insulation. |
10) Bench test condenser and replace it, if defective. |
| 11) Fouled spark plugs or excessive spark plug gap. |
11) Clean spark plugs and set gap as recommended under «Spark Plugs». |
| 12) Improper timing (ignition). |
12) Check and set timing as recommended under « Ignition Timing ». |
| 13) Defective starting motor. |
13) Locate failure and correct as recommended under « Starting Motor”. |
| 14) Carburetor flooded:a) due to too long starting with inserted choke without using accelerator;b) due to carburetor defect. |
14) Proceed as follows: a) remove and wipe spark plugs or wait some minutes and start engine with choke out and all open throttle; b) remove and rebuild carburetor.
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| 15) Dirt or water in fuel line or carburetor. |
15) Remove and thoroughly clean carburetor; if trouble recurs, flush and blow fuel tank and lines. |
| 16) Incorrect fuel level in carburetor bowl. |
16) Check fuel level in bowl and adjust it, if necessary, as recommended under « Carburetor». |
| 17) Defective fuel pump. |
17) Remove and rebuild fuel pump as recommended under <<Fuel Pump>> |
| 18) Poor compression. |
18) Check compression (99.6 to 106.7 p.s.i. - 7 to 7,5 kg/cm2, Model «500» and 106.7 to 113.8 - 7,5 to 8 kg/cm2, Model « 500 Sports »), using a pressure gauge; service valve seats and rebuild engine if compression is too low. |
| 19) Engine overheating. |
19) Check generator and fan drive belt tension and air outlet shutter control thermostat operation. If faults are as outlined under « Cooling », follow directions in this chapter to remove them. |
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