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which water impeller would work best for 421 serval?


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I run about 70/30. What zilla said about antifreeze is true.

 

Im not convinced overheating is due to any sort of design flaw. Plugged radiator or one thats beat to shit comes to mind as more likely along with jetting.

Or even a dirty rad. I took mine off once and flushed the outside with A/C coil cleaner and water and couldn't believe what came out.

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You should always run an antifreeze and water mix... If you're going to run straight water, it needs some kind of lubricant in it, like Water Wetter or some other kind of additive... Other wise it could damage seals.. Water is a great coolant, but a terrible lubricant...

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