Lspv help!
04-23-2018, 09:05 PM
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Lspv help!
I have a 86 pickup and my wheel cylinder blew. Replaced it. While bleeding it a line blew. Replaced it. While bleeding it again another line blew. Replaced it. Now I’m bleeding it again and my lspv is only letting a very tiny amount of brake fluid bleed out the rears. I’m sick of trying to find solutions to “reset” it but can’t find anything this is my last chance to fix it. I’ve tried everything from making a “fake leak” up front to try to trip it back by lifting up the adjustment bar to the bed and trying to bleed it. Nothing works can someone please explain how to trip it back so it works again or explain in detail how to add a manual lspv. Thanks reading my terrible grammar! Any advice helps thanks!
Last edited by 86overland; 04-23-2018 at 09:07 PM.
04-23-2018, 10:31 PM
#2
Lol, like they said in the other thread you need a manual..
Try putting some weight on the rear end, alternative is to fake it and disconnect the valve from the axel and push it upwards to simulate some weight in the back..
Honestly however I'm guessing you have some blocked/rusted up lines from lack of frequent services.. (Subtext your likely to blow more lines)
Try putting some weight on the rear end, alternative is to fake it and disconnect the valve from the axel and push it upwards to simulate some weight in the back..
Honestly however I'm guessing you have some blocked/rusted up lines from lack of frequent services.. (Subtext your likely to blow more lines)
04-24-2018, 06:03 AM
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OEM LSPV is $122 new from Toyota. No manual valve will ever replicate was the LSPV does. No manual valve will constantly adjust for varying load. By the time you add up the cost of a manual valve, adapters to different flare types or thread sizes, and the hassle of plugging/reconfiguring the factory lines and T's, you might as well just keep it stock. When buying a truck, a hacked up brake system is a downside. Not only because I'll have to fix it, but I will wonder what other "fixes" the owner has done.
04-24-2018, 07:46 AM
#5
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the only reason any of your lines would blow out is either they are already close to failure or you are pushing WAY too hard on the pedal, especially for just bleeding your brakes. No need to get all King Kong with it.
Along with raising the sensing arm on the LSPV you may want to completely remove the bleeder screws from the wheel cylinders and see if there is rust/dirt packed in them. I often have to remove bleeder screws and clean them out with a drill bit (don't go all the way through!)
Along with raising the sensing arm on the LSPV you may want to completely remove the bleeder screws from the wheel cylinders and see if there is rust/dirt packed in them. I often have to remove bleeder screws and clean them out with a drill bit (don't go all the way through!)
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