LSPV which line is which?

nikh713 · 10-11-2009, 05:23 PM

which is the pressure line and which is the return line? top or bottom?

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RobD · 10-11-2009, 06:27 PM

There is no "pressure" or "return" line, per se.

http://www.autoshop101.com/forms/brake08.pdf

Make sure you read up on the difference between LSPV and LSPBV. There is a difference.

nikh713 · 10-11-2009, 07:26 PM

i replaced both lines to the rear but affraid i mixed them up, with my abs (all wheel) it has a return line i guess from the rear that t's the pressure line to the front wheels under the master cylinder, the other "pressure" line i guess it would be comes strait out of the ABS to the rear. but i dont remember which line was which. and i'm having problems after fixing the broken line. i'm only getting brakes in the rear and i cant get the air out of the system ( mushy pedal)

RobD · 10-12-2009, 12:03 AM

Truth be told, I pulled the LSPBV out and ran one line off the front to the back and blocked the other from the front.

Upside, I have way better brakes than I did before.

Potential downside, the back end could try to outrun the front under heavy braking. I haven't had any problems yet, with the rear ABS keeping the back end in check.

10-11-2009, 06:27 PM	#2 (permalink)
RobD Registered User Join Date: Jun 2006 Location: Calgary, AB Posts: 1,726	There is no "pressure" or "return" line, per se. http://www.autoshop101.com/forms/brake08.pdf Make sure you read up on the difference between LSPV and LSPBV. There is a difference. __________________ 1991 4Runner, 3.4 5VZFE swap, OME shocks/springs, 33" BFG All Terrain T/A KOs, Pioneer head unit, Infinity speakers, XM Satellite radio

10-12-2009, 12:03 AM	#4 (permalink)
RobD Registered User Join Date: Jun 2006 Location: Calgary, AB Posts: 1,726	Truth be told, I pulled the LSPBV out and ran one line off the front to the back and blocked the other from the front. Upside, I have way better brakes than I did before. Potential downside, the back end could try to outrun the front under heavy braking. I haven't had any problems yet, with the rear ABS keeping the back end in check. __________________ 1991 4Runner, 3.4 5VZFE swap, OME shocks/springs, 33" BFG All Terrain T/A KOs, Pioneer head unit, Infinity speakers, XM Satellite radio

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10-11-2009, 07:26 PM	#3 (permalink)
nikh713 Registered User Join Date: Aug 2009 Posts: 25	i replaced both lines to the rear but affraid i mixed them up, with my abs (all wheel) it has a return line i guess from the rear that t's the pressure line to the front wheels under the master cylinder, the other "pressure" line i guess it would be comes strait out of the ABS to the rear. but i dont remember which line was which. and i'm having problems after fixing the broken line. i'm only getting brakes in the rear and i cant get the air out of the system ( mushy pedal)