Author Topic: LSPV Removal  (Read 2282 times)

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libanker

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LSPV Removal
« on: Jun 12, 2017, 03:19:04 PM »
i just removed the lspv valve. i upgraded master cylinder to 1 inch bore, replaced booster with new  cardone booster cardone booster , replaced vacuum line. added wildwood proportion valve.

i capped the return line to the right caliper.

brake are not soft at all. when truck is off brakes are hard. they soften when started. the truck stops fine but has alot of travel. brakes engage and stop but towards the low end of the pedal. that doesn't sit right with me.

truck has all new brakes around. 32 inch tires on 15x10. there are no leaks and truck was bled out 3x. (Each time i bleed I do get a little air.) i understand i may stlll have some air in the lines but the pedal travel is just more than i like.
Hoses have been replaced with braided stainless lines .


I have already adjusted the pedal and the brake sensor. Could it just be air is still trapped in the line and I will have to keep bleeding?

Any suggestions?

OOPS

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Re: LSPV Removal
« Reply #1 on: Jun 13, 2017, 05:52:57 AM »
Yes!! Is this how you are bleeding them? Did you bench bleed the MC before install?

"...This is from the FSM and it works great..."
1. Drivers side rear
2. Passenger side rear
3. Passenger side front
4. Drivers side front
5. LSPV (Load sensing proportioning valve)
David & Theresa Fritzsche, 1990 Ex-Cab with a few mods!!!!!!!!! Roseville, CA Sobriety =Serenity

libanker [OP]

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Re: LSPV Removal
« Reply #2 on: Jun 15, 2017, 04:05:46 AM »
I will try that order this wknd when i have time. 

thx

Lenny

redneckcustoms13

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Re: LSPV Removal
« Reply #3 on: Jun 15, 2017, 07:21:33 AM »
Also how is the free play in the pedal rod adjustment? If you have all these new parts the pedal rod may have a little too much slack or not enough.
83 long bed 2wd sas, 3rz, w56, duals with 4.7 rear, 4.88 elock front, spartan rear, 39.5 iroks
01 double cab hunting truck
06 tacoma street truck

OOPS

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Re: LSPV Removal
« Reply #4 on: Jun 15, 2017, 07:04:06 PM »
I will try that order this wknd when i have time. 

thx

Lenny

If you did not bench bleed you will get the same results!! Look at your MC when the rig is on all fours, the front of the MC is tilted up, that is where the air is sitting!!
David & Theresa Fritzsche, 1990 Ex-Cab with a few mods!!!!!!!!! Roseville, CA Sobriety =Serenity

Sabot

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Re: LSPV Removal
« Reply #5 on: Jun 30, 2017, 03:06:57 PM »
Make sure your proportioning valve is turned all the way to "more brake" (open)  when you bleed. I had my knob turned the opposite direction and had the same issues you're describing.



 
 
 
 
 

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