Dirty Brown Header Tank

Technical questions and answers about the Mazda Bongo

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bub devlin

Re: Dirty Brown Header Tank

Post by bub devlin » Mon Aug 09, 2010 8:24 am

I would just like to express my displeasure regarding number 5 with the use of this yellow smiley eye roll feature. :roll:

However my son is rather partial to number 4. :wink:
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Re: Dirty Brown Header Tank

Post by francophile1947 » Mon Aug 09, 2010 12:32 pm

helen&tony wrote:Hi
Catatouille ???
Cheers
Helen
Or pizza, with mogzarella cheese 8) :lol:
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Re: Dirty Brown Header Tank

Post by helen&tony » Mon Aug 09, 2010 12:43 pm

Hi
John

EEeuukkk....sounds PURRfectly revolting :lol: :lol: :lol: :lol: :lol:
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Re: Dirty Brown Header Tank

Post by widdowson2008 » Wed Aug 11, 2010 5:10 pm

Fredalier wrote:
1. Find some nice brand new brite and shiny little 10mm nuts (that's nuts as in nuts and bolts). Count off about 20 of them. Make a note of how many exactly.
4. Now you can use a combination of water, a squirt of detergent and the previously counted nuts, to put inside the tank,
Getting back to topic.
Theory sounds good. Have you actually tried this? Reason for asking may be clear from the following pic of an expansion tank that has been split along the welded seam.
Image
As you can see, the tank is compartmentalised, each of the 9 compartments joining to the next by a narrow (4mm wide) slit (red marks).
Unless your tank is different,
1 - I'm not sure how you get 20, 10mm nuts in there (Dont think 20xm10's would fit in the first compartment)
2 - As they cant get past the first compartment, how do the other 8 get cleaned?
Steve
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Re: Dirty Brown Header Tank

Post by mikexgough » Wed Aug 11, 2010 6:41 pm

I guess we will never know the answer.......the Original Poster has been banned....... :-({|= :-#
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widdowson2008
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Re: Dirty Brown Header Tank

Post by widdowson2008 » Wed Aug 11, 2010 7:20 pm

mikexgough wrote:I guess we will never know the answer.......the Original Poster has been banned....... :-({|= :-#
Banned?
I go away for a few days and ?????????????????

However, as I said, theory is good but the reality is a little different.
Steve
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Re: Dirty Brown Header Tank

Post by bigdaddycain » Wed Aug 11, 2010 7:24 pm

Hi Steve, from the pictures, it looks as if the split half on the left hand doesn't reach quite halfway of that split section... Hard to tell from the angle. It's a weird thing, the tanks (in general) are rather opaque. I suggest that the plastic isn't actually "caramelized" throughout, just on the inside's (overheating? mix match of coolants? who knows?) I reckon the sheer amount of brown crud makes the tanks appear stained. I know that the tanks have been cleaned in the past (from brown to clear(ish) again) Using a steamer, and kettle descaling tablets. :wink:
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Re: Dirty Brown Header Tank

Post by bigdaddycain » Wed Aug 11, 2010 7:26 pm

Oh i see... The 4mm slits allow the coolant to flow should it be required. So are they "baffles" (for want of a better term) then?
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widdowson2008
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Re: Dirty Brown Header Tank

Post by widdowson2008 » Wed Aug 11, 2010 7:51 pm

Hi BDC
I know it looks that as though there is actually a gap, but trust me, there is no way a 10mm nut can get between the chambers, never mind 20 of them!!....and even if there were, can you imagine trying to get them all out again.

The 4mm slits
Cant actually see them in the pics - thats why I added the red marker lines.
The only reason I can think of for it being designed this way is to direct the flow in a particular path around the tank, creating a calmer flow.
I think your description of the design as 'baffles' is spot on, much the same as the baffles in tanker trucks.

I think it was TGP that suggested that it was a de-gassing tank (rather than just an expansion tank). Until someone disproves this, I'll go along with the idea just because it sounds NOT unreasonable.
Steve
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Re: Dirty Brown Header Tank

Post by mikexgough » Wed Aug 11, 2010 7:54 pm

widdowson2008 wrote:Hi BDC I think it was TGP that suggested that it was a de-gassing tank (rather than just an expansion tank). Until someone disproves this, I'll go along with the idea just because it sounds NOT unreasonable.
Which goes with what I said earlier..... :wink: .......
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Re: Dirty Brown Header Tank

Post by bigdaddycain » Wed Aug 11, 2010 7:57 pm

widdowson2008 wrote:Hi BDC


I think it was TGP that suggested that it was a de-gassing tank (rather than just an expansion tank). Until someone disproves this, I'll go along with the idea just because it sounds NOT unreasonable.
:D Sounds about right :D
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STANIMA

Re: Dirty Brown Header Tank

Post by STANIMA » Wed Aug 11, 2010 8:50 pm

Image


What?
I been slammin the nuts in, bangin the header round for the length of a whole Jay Z on replay & you say there’s compartments in the way!?
I spent time with mine and now find dat nine chambers lock da bleach & slime even used a toilet duck. What the...
reason for the post if my tank is toast and I’s gonna yell at this crazy game of bagatelle I made with twenty Cent nuts & a can of Raid
I sprayed in there to kill the ants I sent to finish the job & do a detail which I thought would hang a neat beat ,
Cuz bugs got little brushed feet!


Stan.
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Re: Dirty Brown Header Tank

Post by mikexgough » Wed Aug 11, 2010 8:52 pm

Degas tank for engine cooling system
United States Patent 5329889
A degas tank for the cooling system of an internal combustion engine wherein the degas tank is formed from two plastic parts each of which has a plurality of cavities formed therein that are defined by ribs and in which certain of the ribs are provided with open-ended slots so when the two parts of the degas tank are joined together, pairs of open-ended slots cooperate to form an opening through which coolant can flow between adjacent cavities.


sounds familiar
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Re: Dirty Brown Header Tank

Post by haydn callow » Wed Aug 11, 2010 8:59 pm

If you look at that tank above.....you will see some dirt in the bottom....this can be removed by whatever method you decide to have a go with....BUT....if you notice the rest of the tank it is the actual plastic which is stained all the way through.....no amount of anything will get rid of that..
This is what my reply above was saying......Fredalier, who started this topic took great exception to me pointing this out and sent me a abusive PM which it seems I would be breaking forum rules by reproducing....this PM is the reason he has been banned..... and the rest of his antics on here.
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Re: Dirty Brown Header Tank

Post by mister munkey » Wed Aug 11, 2010 9:04 pm

Maybe we should have a whip round to help poor Stan.

It can't be nice having your nuts stuffed into a rusty tank with no hope of retrieval.

:(
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