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Old 24 Feb 2014, 11:33 am
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Default b17a1 engine water isnt cycling?

I have been trying to figure out why the water in my b17 isn't cycling, have been trying to figure it out since last night, have checked the hoses to see if maybe something is blocking it, checked for leaks... nothing

Any ideas or suggestions would help!
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Old 24 Feb 2014, 11:49 am
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Join Date: Nov 2007
Posts: 106

How do you know it's not cycling? Are you overheating? Are you not warming up? Are you watching the coolant with the radiator cap opened? Since that hasn't been established, I'll try to answer this as best as I can.

To review - the cooling system helps keep your engine at a set temperature. This is normally controlled by your thermostat. It's basically your flow control while the water pump continuously circulates the water and the radiator cools it down. I also have to note that the system needs to be pressurized otherwise it's inefficient and you'll overheat eventually.

Things that can go wrong...

A thermostat is likely to break open meaning that it will stay open all the time. When this happens, your car will have a hard time warming up and staying at its operating temperature. This is especially true in the cold. However, it can also break closed which completely cuts off your engine's supply of cooled water; stops the flow. And as you might have guessed, you'll over heat.

If you can't find leaks around your water pump, it's unlikely that it's bad since this type is belt driven. However, if the water pump has not been changed in a long time - years of electrolysis can eat away at the pump's blades rendering it unable to circulate water.

In the past, I've also experienced clogged radiators. Most of the time this is a result of someone trying to seal their leaking radiator with a cheap off the shelf fix. If you see evidence of this, replace your radiator. It's possible that parts of your system is also clogged - hope that's not the case.

If you're really after a heat issue - then there's other areas to look into as well but that's another discussion.
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