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Gasgas delta 250 1991 cooling problems


r1chard06
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Someone help me out I’m stuck engine keeps boiling coolant after about 20 mins the thermostat has been bypassed chAnged water pump radiator and pipes new head gasket no crack in head so what the held going on also wording been modified to bypass thermostat

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 So you have a fan issue. Did you ever just hook a battery to the fan? So when you checked the impellor, did it spin when you kicked the motor? Did you try spinning it with your finger? The threads can strip, so they never push enough coolant.  

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