Tom Bradley
| Joined: | 07-15-2013 |
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| Posts: | 203 |
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If the thermostat controlling the coolant flow is working correctly then having the fan operating continuously should not make any significant difference in how fast the engine warms up. After all, the original fan connected to the crank shaft was always running whether there was a shroud installed or not. If the fan is mounted directly to the radiator, I do not think a shroud makes that much difference. The main reason a shroud was needed on the original fan was because there was too much space between it and the radiator for it to pull air through very efficiently.
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