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All About Car Restoration

CAR RESTORATION HOW TO

TROUBLESHOOTING

1953-1960 Classic Car Engines Troubleshooting Guide: Engine Overheats - Water Leakage

Things to Look For:

Cylinder Head

  1. Loose attaching bolts.
  2. Dirty, corroded or burred surface prevents tight fit.
  3. Warped surface does not fit tight against gasket.
  4. Cracked due to freezing or excessive heat.
  5. On overhead valve head, exhaust valve seats may be cracked, allowing water to leak into cylinders and crankcase.

Cylinder Block

  1. Dirty, corroded or burred surface prevents tight fit.
  2. Warped surface does not fit tight against gasket.
  3. Cracked due to freezing or excessive heat.
  4. If L-head design, excessive heat may crack exhaust valve seats, allowing water to leak into crank-case.
  5. Block cracked due to use of cylinder head bolt which is too long.
  6. Leaky expansion plugs or pipe plugs in water jacket.

Cylinder Head Gasket

  1. Dirty, corroded or broken.
  2. Loose because cylinder head bolts are loose.
  3. Leaks because it cannot make tight contact between head and block.

Water Pump

  1. Loose pump.
  2. Faulty gasket.
  3. Improper installation.
  4. Warped pump body or dirty metal surfaces.
  5. Hole or crack in pump body.
  6. Worn seal.
  7. Seal improperly installed.
  8. Bent pump shaft.
  9. Loose bearings or bushings or worn pump shaft.

Radiator

  1. Leaks due to freezing or corrosion.
  2. Strain due to improper attachment to car.
  3. Fan striking radiator.
  4. Drain plug or petcock leaks.
  5. Radiator baffle bent so that water is directed into overflow pipe.
  6. Clogged radiator causing water to pile up in upper tank which causes coolant to flow out overflow pipe.

Hose

  1. Hose clamps loose.
  2. Hose improperly installed.
  3. Hose rotted through.

Heater

See that all heater connections are tight and that its radiator does not leak.

The Complete Guide to Troubleshooting 1953-1960 Era American Classic Car Engines

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