Topping up the coolant

[Hi RX7]

As a fairly new owner I am slowly getting to grips with the car I bought but I have been topping up the water many times and there seems to be no leak and I\'ve just noticed a kink in the pipe going from the air removal unit, I have put what I consider to be a lot of water into the correct filler but after a run the water in the expansion tank is cold and at the same level. Do I just fill and fill till the water does not drop in level?

[logicalChimp]

Hi

You only need to fill up from the cap in the center of the engine - this is the main coolant cap.  You don\'t need to worry about the other two coolant points (behind drivers side popup lamp, and just behind the intercooler).

As long as the level at the center cap doesn\'t change, don\'t worry - the other two points are expansion tanks, so the level of coolant in them changes based on temperature etc.  

Likewise, provided the level at the center cap isn\'t changing, don\'t worry if the others aren\'t either.

However, if you are putting lots of coolant into the main filling point, and it\'s just disappearing (after a drive), then you have a problem - either a split AST, a split cooling pipe, or problems with your water seals (although I think water seal problems result in clouds of white smoke/steam coming out the exhaust - very noticeable)

[Hi RX7]

Thanks just had a look and noticed all that I put in seems to be on the floor so it must have come out the expansion tank. The Apexi records 82-85 while driving and no lights or buzzers have come on.

[sickboy2345]

lol! i did that when i first got it :] used it coz it says "coolant only"

:]

[nikp]

If no buzzer is coming on, then you shouldn\'t need to top it up. Obviously don\'t rely on the coolant level sensor, but it is very simple and if it fails the buzzer comes on - so if its not on it usually means it\'s working!

Coolant level should be about 2 inches below the top of the filler neck. And if you put in more than the system needs, the coolant system usually spits out MORE than you put in. So it might be that.

[welshrx-7]

which is the colent pipe is this the pipe that runs from the engine colent area to the ast? mine got like a rubber sleve over it? is this comon or have someone tryed to botch it before me?

[nikp]

Many of the standard pipes do have rubber sleaves, thats normal.

[welshrx-7]

which is the colent pipe is this the pipe that runs from the engine colent area to the ast?

[sickboy2345]

[welshrx-7]

i have bubbling water and was looking to change the colent pipes which ones should i change? is it the blue pipe that comes from below the filler cap and usally goes to the ast. the pic oabove is of one that has had the ast removed is it? why do this?

[sickboy2345]

mate  u really need to start using search go http://www.rx7club.com they have much bigger archive, just search what you need to know, AST removal, water bubbles, -u name it...

[welshrx-7]

thanks mate just signed in now.

[marcusd666]

this may be a silly question but what is the level under the cap should be when cold?

[sickboy2345]

f876 in hell mate you didnt even read this thread, you got ur answer in like 2nd post...

[marcusd666]

f876 in hell mate you didnt even read this thread, you got ur answer in like 2nd post...

OK I will hold my hands up that I have only had my FD for 3 months now and I have read the owners manual was does not say anything about the centre cap. I have attached two pics showing the level all i was asking is this ok?