Dash port on 4AGE

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Dash port on 4AGE

Postby NA Drifter » Sat Jul 31, 2004 5:34 pm

Well, dash port... the thing that located under the trottle linkage on the 4AGE.. what are they? what do they do? it seem like there is an adjustment srew for them.
when the car is started, from the vaccum in the manifold, it make the dash port to suck in...
can anyone tell me what they for?
cheers
Keith
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Austin Mini with 1275,TT140 Corona GT-TR with 3TGTEU, TE71 GT Levin with 2TGEU, AE86 Trueno 4AGE, AE85 Trueno 3A, Hilux Surf with 2JZGEU
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Postby matt dunn » Sat Jul 31, 2004 10:24 pm

dont know exactly what you mean but i can guess.
They have a bit called a dash pot on the throttle. It has vacuum on it and when the throttle opens it spring out. When the throttle snaps shut it is slow to return and stops the throttle plate from smacking closed to prevent damage to it.
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Postby NA Drifter » Mon Aug 02, 2004 1:52 am

ahh yes, Dash pot.. not port. :P
I think that's how they work, but just wanna know what they do. Another guess is that, I think they "slow" down the butterfly in the trottle body when you back off the trottle?.. so that your car engine won't stall??... from sudden lost of air supply for the engine?
Keith
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Austin Mini with 1275,TT140 Corona GT-TR with 3TGTEU, TE71 GT Levin with 2TGEU, AE86 Trueno 4AGE, AE85 Trueno 3A, Hilux Surf with 2JZGEU
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Postby 86 Power » Mon Aug 02, 2004 1:24 pm

They seem a bit useless. I have removed it off my car and noticed zero difference. Technically it should slow the throttle the last 5mm before it closes, but it doesn't seem to touch it. It also seems to shrink when you apply throttle, rather than grow? I thought it should have grown. Then shrink when the throttle hits it.
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