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Discussion Starter · #1 ·
Ok, Installed the LL over the weekend and bled the lines well. Upon trialing out the sytsem I did notice that the truck was able to overcome the LL when first gassing it and/or if rotational speed was reduced, thus increasing traction.

Is this normal or is there a way to increase this holding pressure? Does it change with, or is it related to, the amount of pressure applied on the pedal while actuating the LL? Will a rapidly depressed brake pedal allow for greater hold than one that is just eased into?

Any comments would be appreciated... :smt023
 

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It can only hold whatever pressure you put in with your foot, it's just a valve that closes when activated-- only allowing pressure to enter (1 way).

Before going to the hydroboost setup, I would do a fairly hard press on the brakes, engage the LL, then let up pedal and give it one more medium-hard pump for good measure. Right way or not, it seemed to work well.
 

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Discussion Starter · #5 ·
It can only hold whatever pressure you put in with your foot, it's just a valve that closes when activated-- only allowing pressure to enter (1 way).

Before going to the hydroboost setup, I would do a fairly hard press on the brakes, engage the LL, then let up pedal and give it one more medium-hard pump for good measure. Right way or not, it seemed to work well.
I'll give this a shot. Assuming it will allow additional pressure in and not back through the valve, this makes sense. I will also be more deliberate with my braking.

Thanks.
 

· Stock block 11 second club
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Put a little more ass behind the pedal before you trigger the solenoid, if that doesn't work re-bleed the system. You must bleed the entire system after a LL install starting with the caliper farthest from the master cylinder, working to the one nearest the master cylinder (passenger rear, driver rear, passenger front, driver front).
 

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Discussion Starter · #7 ·
Put a little more ass behind the pedal before you trigger the solenoid, if that doesn't work re-bleed the system. You must bleed the entire system after a LL install starting with the caliper farthest from the master cylinder, working to the one nearest the master cylinder (passenger rear, driver rear, passenger front, driver front).
Did this, then rebled the fronts again. Air in rear lines will not affect brake holding in front after actuating the solenoid and releasing the brakes... Will it?
 

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It can only hold whatever pressure you put in with your foot, it's just a valve that closes when activated-- only allowing pressure to enter (1 way).

Before going to the hydroboost setup, I would do a fairly hard press on the brakes, engage the LL, then let up pedal and give it one more medium-hard pump for good measure. Right way or not, it seemed to work well.

This...^^^^

Should be able to romp on it without any creep. And like someone else pointed out, put some ass into the pedal then lock it.
 

· Stock block 11 second club
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Just to err on the side of caution, check all fittings and lines for leaks.
 

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a line lock closes the line....why would extra pumps after its engaged do anything?

Doesnt make sense
My thoughts exactly.
Don't see why it wouldn't, and it works... (edit: works with my JJ kit). Apparently some solenoids lock flow both ways, so YMMV. Doesn't matter if you put enough ass into it before you hit the switch.
 

· Worlds Fastest Street HD Truck
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never heard of that before, as many have also installed a hurst line lock on the rears rather than the fronts so they can lock the rears open, and use the brake pedal to modulate the fronts for better control of rolling burnouts, which wouldn't work if the linelock only acted as a one-way valve and not a solenoid to lock pressure totally in or out
 

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which wouldn't work if the linelock only acted as a one-way valve and not a solenoid to lock pressure totally in or out
All the Hurst units I've used turn to a one-way. Try it & see for shiggles. Besides, when you put it on the rears in that manner you're talking about , you need to reverse the flow direction through the solenoid. (most solenoids have a specific in and out port for this reason, which can turn into a bad day when mixed up).
 
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