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'77 clubby van
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PostPosted: Wed Jul 29, 2009 10:26 pm 
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Morris 1100 wrote:
The trick is not to use full throttle!


Huh?.... I,... I don't understand. :? :D

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Morris 1100
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PostPosted: Wed Jul 29, 2009 10:33 pm 
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'77 clubby van wrote:
Morris 1100 wrote:
The trick is not to use full throttle!


Huh?.... I,... I don't understand. :? :D

The carby can freeze at any throttle position but if the spindle freezes up on full throttle the only way it can move is off. The spring is not strong enough to pull it off so it is stuck.
If you are on 90% throttle when it freezes the shaft can still go in two directions, on or off. The spring won't move it off but the throttle cable will pull it on. So you floor the pedal, the ice will break and then you back off.
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'77 clubby van
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PostPosted: Wed Jul 29, 2009 10:40 pm 
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Sorry, I understand that, I just didn't think there was a way of driving a mini without full throttle! :twisted: :lol: :lol:

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Morris 1100
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PostPosted: Wed Jul 29, 2009 10:42 pm 
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'77 clubby van wrote:
Sorry, I understand that, I just didn't think there was a way of driving a mini without full throttle! :twisted: :lol: :lol:

Sorry I keep forgetting you poor Mini drivers, when you drive a Morris 1100 you have to lift the foot on the freeway. :mrgreen:
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MG Rocket
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PostPosted: Sun Aug 02, 2009 6:04 pm 
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Location: Port Stephens, a little north of Newcastle, Australia
Other than the freezing of the throttle shaft is there any problem with the
carby getting so cold?
The way I understand it is......you want cold air (dense, more oxygen and carries more fuel) as far
as the outlet of the carby venturi and then you want a hot intake manifold to vaporise the fuel.
Am I right?
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Morris 1100
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PostPosted: Sun Aug 02, 2009 6:11 pm 
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The throttle shaft is just one way the SU can freeze.
They also freeze the whole body and the piston stops working.
Another problem is when the whole inside blocks up with ice.

Cold air is good for power. Cold moist air is good for ice. :lol:
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MG Rocket
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PostPosted: Sun Aug 02, 2009 6:30 pm 
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Morris 1100 wrote:
Cold air is good for power. Cold moist air is good for ice. :lol:

So what we want is a carby that also dries out the air and then we have power without danger (some would say without excitement) :)
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Mick
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PostPosted: Sun Aug 02, 2009 6:38 pm 
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Location: Under the bonnet son!
MG Rocket wrote:
Morris 1100 wrote:
Cold air is good for power. Cold moist air is good for ice. :lol:

So what we want is a carby that also dries out the air and then we have power without danger (some would say without excitement) :)


Well it does dry out the air....just not where you want it to......

Its the pressure drop across the mostly shut butterflyfrom atmospheric to -20(odd) psi which causes the temperature drop. The water also chooses to condense and freeze...


Silly old Bernoulli caused it......

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MG Rocket
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PostPosted: Sun Aug 02, 2009 6:54 pm 
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Mick wrote:
Silly old Bernoulli caused it......


I was reading the other day..... apparently Bernoulli doesn't hold
up aeroplanes any more...so watchout
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Super-mini
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PostPosted: Sun Aug 02, 2009 6:59 pm 
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Drexxle wrote:
Super-mini wrote:
nicely made!

i've never had probs with icing before.


HAHAHA thats cause your misses is the one that makes the cupcakes!!!! :D


lol u funny :lol:
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