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  #1  
Old 01-07-2009, 10:36 AM
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Default Help...... Heli's = No Brakes!!

Over the weekend I made use of the wet weather and tried some helis in my wrx…..all on private property


After a 360 I stopped accelerating, put my clutch in and put my foot on the brake to stop me rolling into a fence.

And my brake peddle wouldn’t budge! So I hit the fence …..i was only moving slow, but it felt solid!

Only a few scrapes and scratches, so no real harm done. Thanks God!










So thinking about it now, when I went to push the peddle it felt further out than usual, and about 2 or 3 seconds after I hit it slowly went soft again, and I could brake normally.


I'm thinking it would be something to do with the brake booster, and the boost from the engine giving it pressure not vacuum…

Does the brake booster work from the engine pressure, or is there a vacuum pump?
does this often happen? what fails causing it?


cheers in advance, Steve.
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Old 01-07-2009, 10:43 AM
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haha i tried a few yesterday. Massive carpark at city beach has had sand wash all over it. I yoinked and poped but it just stays doin really big arcs. How do ya get it to pivot? Stay on it? Eg more than one or two revoloutions? I got scared and buggered off.
also you didnt hit a brake line with your rim did ya and pop it? Happened to me a couple of eeks ago on the track with my trac k rims. scary!!!! Braided in now.
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Old 01-07-2009, 10:47 AM
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air bubbles in your brake line?
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Old 01-07-2009, 10:50 AM
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Check Valve in the brake booster?
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Old 01-07-2009, 10:56 AM
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its abs, and thats normal.
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Old 01-07-2009, 11:00 AM
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Quote:
Originally Posted by tuna
its abs, and thats normal.

oh, why does it do it?

why would the abs not let you brake???
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Old 01-07-2009, 11:01 AM
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^ beat me to it, ABS will play silly buggers, speed sensor experiencing some decent speed and then latching on the brakes you get the wooden pedal.

Its safer to roll out of a heli, donut etc then hitting the skids.
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Old 01-07-2009, 11:19 AM
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Yeah ABS sucks in that situation. It's all confuzzled and doesn't know what's really happening, but you do.
ABS aint so good on gravel, too

Best thing is like Jme says, chuck the clutch in and let the wheels grip up and the car sort itself out.
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Old 01-07-2009, 11:28 AM
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[QUOTE=RUSSGT]haha i tried a few yesterday. Massive carpark at city beach has had sand wash all over it. I yoinked and poped but it just stays doin really big arcs. How do ya get it to pivot? Stay on it? Eg more than one or two revoloutions? I got scared and buggered off.
QUOTE]

im a noob at this but what "yoinked and poped" ive seen this words alot but dont really know what it is....

when i did mine took 3 rev before going into 1 small circle did 2 of those and i got sick lol

seen vids where they can engage a heli in some helaa small areas but i need a large area to start mine off..
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Old 01-07-2009, 11:41 AM
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"yoink" the handbrake - "pop" the clutch
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