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Alfa Romeo 145 - 146 Forum _ Spit and Polish _ Expansion Tank

Posted by: Duncan 4th March 2011 22:56

Anyone got any tips for cleaning the inside of the expansion tank? Mine is so stained I can't tell what level my coolant is at! Was gonna buy a new one but Alfa have made the part obsolete!

Maybe parts cleaner and then good rinse?

Posted by: 146tigaz 4th March 2011 23:07

[quote name='Duncan' date='4th March 2011 22:56' post='171255']
Anyone got any tips for cleaning the inside of the expansion tank? Mine is so stained I can't tell what level my coolant is at! Was gonna buy a new one but Alfa have made the part obsolete!

Maybe parts cleaner and then good rinse?
[Got the same problem, was thinking a good soak with bleach?? and then blast it through with the works power washer?? blink.gif ]

Posted by: NaanBread 4th March 2011 23:53

iv heard a mixture of bleach and washing machine powder does the trick, but cant remember exactly how its done. I'll see if I can find the thread I read it on, probably another forum so I may turn up with nothing lol

maybe do a google search and see what comes up?

Posted by: Tifosi1976 4th March 2011 23:56

strangely enough Naan is right.

I took one out of an 8v 155 i stripped that was as good as black inside.

Bleach, 100%. block up the holes obviously

Leave for a few days

Rinse thoroughly.

was SPOTLESS.

Posted by: NaanBread 4th March 2011 23:57

ye have little faith!

Posted by: Tifosi1976 5th March 2011 00:03

QUOTE(NaanBread @ 4th March 2011 23:57) *
ye have little faith!


NEVARRRRRRR

Just stay away from my fireplace biggrin.gif

Posted by: NaanBread 5th March 2011 00:16

laugh.gif thats fine, my speciality is poking fires.

Posted by: Tifosi1976 5th March 2011 14:51

QUOTE(NaanBread @ 5th March 2011 00:16) *
laugh.gif thats fine, my speciality is poking fires.


I thought it was poking old men?

Posted by: kirk46 5th March 2011 15:08

QUOTE(Tifosi1976 @ 5th March 2011 14:51) *
I thought it was poking old men?


i thought is was badgers? laugh.gif

Posted by: NaanBread 5th March 2011 15:29

you wish stuart! ha!

Posted by: Paddy 280bhp 17th March 2011 19:00

Soak it in a bucket of petrol for a day and watch the grime and crud fall out of it.

Posted by: 930Tech 17th March 2011 19:18

I've got a spare expansion tank and it's been submerged in my parts washer for about a fortnight, look pretty clean now.

laugh.gif

Posted by: Paddy 280bhp 17th March 2011 19:50

Or if you want a really clean polished look,then buy a polished stainless steel tank or get 1 made.

Thats what I did.





Posted by: Fuel 7th July 2011 15:44

I would like to know if any of the receipts above have worked well!

I've washed mine one with a mix of water, bleach and soap... with some grinds inside and shaked it.
It has cleaned but it is not completely cleaned yet! I would like to have it like a new reservoir.... unsure.gif


One thing you can always do is to buy a new expansion tank that equips Fiat Brava, Bravo & Marea (I think this one Fiat still supplies)
It is the same expansion tank that equips Alfas 145 phase 2, and it fits all 145 models. Just plug and play.

The only thing is that you will have to pay attention and change the cap of this new reservoir, once on the Bravas and Mareas
the cap is calibrated to 1.4 bar, and in our Alfas (at least the alloy top version....) the cap is calibrated to just 1 bar.

BTW, does somebody of you know where to buy new genuine 1bar Alfas expansion tank cap????


best


Posted by: NaanBread 7th July 2011 16:19

alfa dealer or http://forum.alfa145.com/index.php?showuser=5115 guy smile.gif

Posted by: UK145QV 7th July 2011 21:25

Alfa dealer told me the CF1 expansion bottles were discontinued.
Mine split on the seam, new second hand ones dirty.

Posted by: Tifosi1976 7th July 2011 21:44

Rule No.1 of 'Spit and Polish'

EVERYTHING can be cleaned.

Sometimes it takes patience.

Posted by: Fin 7th July 2011 23:10

QUOTE(Tifosi1976 @ 7th July 2011 22:44) *
Rule No.1 of 'Spit and Polish'

EVERYTHING can be cleaned.

Sometimes it takes patience.

Seal off both the outlet pipes with some old tubing and jubilee clips, drop in 2 or 3 dishwasher tablets and fill with boiling water. Then leave to soak over night! thumbsup.gif

Posted by: Fuel 8th July 2011 00:08

QUOTE(NaanBread @ 7th July 2011 13:19) *
alfa dealer or http://forum.alfa145.com/index.php?showuser=5115 guy smile.gif


Tks Naan!


Posted by: Red Rock 4th January 2012 21:32

My expansion tank was thick with brown gunk and I couldn't see the coolant level anymore, so after reading this thread I thought this would make a good, quick holiday job.

I tried the dishwasher tablets - it made it better, but not great. I then filled it with a bleach solution overnight (didn't have enough bleach for 100%) - again better, but not as good as I wanted.

I then trawled the net for other ideas and putting detergent along with rice or gravel in the tank and giving it a good shake seems popular. Not wanting to turn the Alfa into a Nissan, I went for the gravel option.

Out to the garden path for a handful of pea gravel and into the tank with a bit of water. After shaking it for 10 mins, it was looking really good - not concourse, but clean.

Then came the hard part - because of the baffles in the tank, it took nearly an hour of shaking, turning, twisting and swearing to get all the gravel out again! It was like one of those infuriating puzzles where you have to get the ball through the maze - except you couldn't see the maze!

The tank is back on the car now and looking good, but looking at the colour of the water, a radiator flush is the next job.

Cheers,

Mark.
NZ.

Posted by: langers 5th January 2012 07:36

Any pictures?

Posted by: Red Rock 30th January 2012 07:53

QUOTE(langers @ 5th January 2012 20:36) *
Any pictures?


OK, here's one. Not concourse, but I can at least see the coolant level now. It looked like it had been painted with dark brown fence paint before.



I will try some of the other suggestions if it gets dirty again, but as it had the original clips on the hoses, I'm hoping this is a once-every-fifteen-years job!

Cheers,

Mark
NZ.

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