Correct level of Expansion Tank again!!!!!!

Post by **Jutstar** » 02 Nov 2008, 18:34

I ve posted a few topics about how i had problems with my T25 and they were resolved, etc, etc.

The main problem was a overheating one, which thankfully has been sorted.

However, i m paranoid so a bit of further guidance would be great. Just wondered what the correct level is of the expansion tank, i ve had a look in haynes and WIKI and can t see.

I v e taken he cap off (when cold) then started the engine and filled it to the brim, then put the cap on and gone off on my way. Last night i did it and the level was just above the minimum line when i stoped, i didn t put any further water in and did 20 miles and the levels stayed the same. I have no leaks anywhere.

My heaters are all good, temperature gauge is good, but it does creep up a bit when the heaters are put on cold, but ive read that this is ok.

So in a nut shell what should the levels be of the expansion tank or is is just one of those guess ones.......

Thanks again guys.

1987 dg wbx 1.9

Post by **Krisis** » 02 Nov 2008, 19:30

Hello Jutstar,
With my diesel I fill the expansion tank, in the bay, to the top, start the engine then turn on the heater.
Let the engine warm up, rev to about 2500 / 3000 rpm, the level drops then fill to the brim and put the lid on Then I top the rear tank, behind the flap to max, drive it for a bit and job done.

Go back when its cooled down and check and top up where needed

TTFN Kris

Post by **kevtherev** » 02 Nov 2008, 20:21

Jutstar wrote:
I v e taken he cap off (when cold) then started the engine and filled it to the brim, then put the cap on and gone off on my way. Last night i did it and the level was just above the minimum line .........

Woah! stop right there

the expansion tank has no marks
the top up tank does

so are you saying that the top up tank is at the minimum level after filling the expansion tank?

the expansion tank should remain full to the brim at all times.
the top up tank level should remain between the MAX and MIN marks at all times

Post by **Jutstar** » 02 Nov 2008, 20:45

Hi Kev,

The expansion tank, i m sure when i was checking it i could see a min mark on it, the top up tank, behind the plate seems to stay put.

By your response is it new engine time ......................................

Post by **kevtherev** » 02 Nov 2008, 20:49

what colour is the cap on the expansion tank?

Post by **Jutstar** » 02 Nov 2008, 20:53

Hi,

I ve just had it replaced and it s blue.

Post by **kevtherev** » 02 Nov 2008, 21:13

[img:500:500]http://www.brickwerks.co.uk/components/ ... coohtc.jpg[/img]

like this one?

Post by **Jutstar** » 02 Nov 2008, 21:18

Yup thats the badger

Post by **kevtherev** » 02 Nov 2008, 21:22

have you recently drained the cooling system?

Post by **Jutstar** » 02 Nov 2008, 21:23

I would add, that since the water pump, expansion tank and cap have been replaced it has only had normal anti freeze put in, i will be ordering some from JK tommorow.

Post by **Jutstar** » 02 Nov 2008, 21:25

It s not been drained but did loose quite alot when the above items were replaced, i toped it up with water and normal antifreeze and did bleed it through the rad bleed

Post by **Mocki** » 02 Nov 2008, 21:30

it needs bleeding again.......

Post by **kevtherev** » 02 Nov 2008, 21:33

Then I would suggest it is still ridding air... keep bleeding

Post by **Red Westie** » 02 Nov 2008, 21:35

TWO TANKS......
Top tank with the DARLEK pressure cap (should be full to the brim)
The lower tank (the one you can see behind the number plate flap) the level should be between Min ans Max. This has a plain cap.

Martin

Post by **Jutstar** » 02 Nov 2008, 21:38

Ok lovely job something for me to do next weekend. Is JK the best shout for coolant?

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Correct level of Expansion Tank again!!!!!!

Correct level of Expansion Tank again!!!!!!

Re: Correct level of Expansion Tank again!!!!!!