Question about 1978 Honda GL 1000 (K3)

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Coolant leaking from radiator cap while running. No other leaks.

Coolant leaking from radiator cap while running. No other leaks.

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  • Anonymous Mar 16, 2014

    Leaking

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Hi I am Vortash I hope this is just a faulty cap or seal but it could be signs of something more sinister check your oil for contamination ( emulsification oil in water turns white at temprature ) it could mean you have a head gasket problem starting or indeed happening as preassure is building and blowing the coolant out .. hope for your sake I am totally wrong and it is just a faulty cap .. regards vortash

Posted on May 31, 2009

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Posted on Jan 02, 2017

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COOLANT-ADDING ADDITIONAL
Do not remove radiator cap to add coolant to system. When adding coolant to maintain correct level, do so at coolant reserve/overflow tank. Use a 50/50 mixture of ethylene glycol antifreeze containing Alugard 340-2 y and low mineral content water.
Remove radiator cap only for testing or when refilling system after service. Removing cap unnecessarily can cause loss of coolant and allow air to enter system, which produces corrosion.

COOLANT LEVEL CHECK
The cooling system is closed and designed to maintain coolant level to top of radiator.
WARNING: DO NOT OPEN RADIATOR DRAINCOCK WITH ENGINE RUNNING OR WHILE ENGINE IS HOT AND COOLING SYSTEM IS UNDER PRESSURE.
Remove radiator cap. The coolant level should be to top of radiator. If not, and if coolant level in coolant recovery bottle is at ADD mark, check for:
  • An air leak in coolant reserve/overflow tank or its hose
  • An air leak in radiator filler neck
  • Leak in pressure cap seal to radiator filler neck
TRANSMISSION and OIL LEVEL CHECK TUBES
pctech1_27.jpg

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Water leak from top of expansion tank.2000 BMW 316i se


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