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Original Message
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| RE: by pass hoses |
| By Barry B. - 11/06/2000 10:42:14 AM; IP 134.217.237.30 |
Gordon, you need the bypass hose for the coolant to circulate through the engine while the thermostat is still closed. By plugging the hose, the coolant remains stagnant in the block and heads during warm-up and is causing hot spots in the heads. That is the thumping sound you hear, the coolant is hot and stagnant in the heads, creating steam pockets. Also during warm-up, the temperature gauge and thermostat temperature lags the true average temperature of the engine because the stagnant coolant has large temperature gradients throughout the engine (it needs mixing). The only time you can plug the bypass is when you run without a thermostat. If you are looking for more heat, just put a higher temperature unit in it.
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