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JC
PostPosted: Tue Jun 14, 2005 8:09 pm 
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Got a question about the twin tank set up. I'm having trying to map out what i'm thinking so if it doesn't make sense its not intentional.

If i just use the standard speedo that shows the fuel level am I getting a correct reading from what is left in both tanks? Meaning - If the level is reading half have i got half of the capacity of both of the tanks or half of the capacity of the tank with the sender on it?

I guess the real question is - do the tanks level out? If i fill up the left tank and not the right will it say i have half capacity left, which is not really the case?

Whilst typing I have raised another concern. Because Striped is going to be fool injected and if the tanks don't level out that creates the possibility of air getting in the lines. F/ing the pump and.or the injectors.....

Anybody able to shed any light?

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Mini Mad
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PostPosted: Tue Jun 14, 2005 8:14 pm 
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I think the theory is they are supposed to level out through the balancer pipe..but it takes a while..

Sorry, not much help..

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GT1360
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PostPosted: Tue Jun 14, 2005 8:17 pm 
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Mine do.. it takes a little bit after filling before they are the same..
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drmini in aust
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PostPosted: Tue Jun 14, 2005 8:20 pm 
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On level ground they level out. If car is tilted they level, but will not be equal- fuel gauge reads whatever level in LH tank is.

Note: If parking car severely tilted,
1. You want good caps that seal. :lol:
2. The breather pipes on the top of tanks must each cross to other side of car. If not it can drain to lowest tank, then siphon fuel to ground.... :shock:

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JC
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PostPosted: Tue Jun 14, 2005 8:25 pm 
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Mini Mad wrote:
balancer pipe..


Balancer pipe hey? which one is that? The one at the bottom that goes into the T piece?

And if they be balancing does that mean the return line from the fuel rail can just go into one of the tanks?

drmini in aust wrote:
2. The breather pipes on the top of tanks must each cross to other side of car. If not it can drain to lowest tank, then siphon fuel to ground.... :shock:


Can you elaborate on this Doc? I don't quite get what you mean.....Note - There are no pipes coming from the top of either of my tanks.

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drmini in aust
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PostPosted: Tue Jun 14, 2005 8:32 pm 
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The `balance pipe' pipe is the RH feed pipe to tee.
Yes the return can go back to 1 tank, but it might be an idea to make RH tank's feed pipe bigger.. :wink:

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JC
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PostPosted: Tue Jun 14, 2005 8:35 pm 
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drmini in aust wrote:
The `balance pipe' pipe is the RH feed pipe to tee.
Yes the return can go back to 1 tank, but it might be an idea to make RH tank's feed pipe bigger.. :wink:


Why's that?

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drmini in aust
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PostPosted: Tue Jun 14, 2005 8:36 pm 
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Look inside boot- there is a spud fitting right at top of each tank pointing to centre of car. There should be 2 black pvc? pipes on there, on an S, they cross each other under parcel tray..
Then they exit thru boot floor, near battery cable and fuel line to pump. :wink:

On a single tank Mini, it exits near the fuel line, doesn't go across the car.

Must be smelly in your car with no breather hoses.. :lol:

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drmini in aust
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PostPosted: Tue Jun 14, 2005 8:37 pm 
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Whitestriped63 wrote:
drmini in aust wrote:
The `balance pipe' pipe is the RH feed pipe to tee.
Yes the return can go back to 1 tank, but it might be an idea to make RH tank's feed pipe bigger.. :wink:


Why's that?

Because the return flow might exceed the balance flow (which is powered by gravity..) :wink:

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JC
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PostPosted: Tue Jun 14, 2005 8:42 pm 
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drmini in aust wrote:
Look inside boot- there is a spud fitting right at top of each tank pointing to centre of car. There should be 2 black pvc? pipes on there, on an S, they cross each other under parcel tray..
Then they exit thru boot floor, near battery cable and fuel line to pump. :wink:

On a single tank Mini, it exits near the fuel line, doesn't go across the car.

Must be smelly in your car with no breather hoses.. :lol:


Ok so i need to fit a pipe to connect the two black PVC's?

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drmini in aust
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PostPosted: Tue Jun 14, 2005 8:44 pm 
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NO... they are separate, 1 from each tank, so 2 breathers thru boot floor.

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JC
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PostPosted: Tue Jun 14, 2005 8:44 pm 
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drmini in aust wrote:
Whitestriped63 wrote:
drmini in aust wrote:
The `balance pipe' pipe is the RH feed pipe to tee.
Yes the return can go back to 1 tank, but it might be an idea to make RH tank's feed pipe bigger.. :wink:


Why's that?

Because the return flow might exceed the balance flow (which is powered by gravity..) :wink:


You've lost me again. What's the difference between the return flow and the balance flow?

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JC
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PostPosted: Tue Jun 14, 2005 8:45 pm 
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drmini in aust wrote:
NO... they are separate, 1 from each tank, so 2 breathers thru boot floor.


Oh, to atmo?

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drmini in aust
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PostPosted: Tue Jun 14, 2005 8:52 pm 
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:idea: Yeah......... :wink: 8)

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JC
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PostPosted: Tue Jun 14, 2005 9:16 pm 
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Whitestriped63 wrote:
drmini in aust wrote:
Whitestriped63 wrote:
drmini in aust wrote:
The `balance pipe' pipe is the RH feed pipe to tee.
Yes the return can go back to 1 tank, but it might be an idea to make RH tank's feed pipe bigger.. :wink:


Why's that?

Because the return flow might exceed the balance flow (which is powered by gravity..) :wink:


You've lost me again. What's the difference between the return flow and the balance flow?


an den?

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