Where to get a load sensing valve bleed screw?

Out of curiosity, which Jimnys had LSPV and why? Seems little useful to me on a Jimny.

Letsbebad007 wrote:

I’ve bought a 2006 jimny [...] if anyone here has done the  engine swap and can give me any advise thanks
 

Your post has somehow ended up in the wrong thread. Please start a new topic.

Non-ABS Jimnys have LSPVs. In ABS equipped Jimnys, the ABS system handles the task of the LSPV.

LSPVs were generally fitted to vehicles where the weight distribution changes as the vehicle is loaded and/or unloaded - the brake bias is changed to decrease rear brake contribution as the load in the vehicle is reduced to reduce the probability of the rear wheels locking up.

You might not think this is needed on a vehicle as small as a Jimny, or with the limited payload of a Jimny, but, take a look at your tyre pressure recommendations, mine is 26F/26R for two persons (presumably both in the front seats) and 26F/29R for four persons (both front & rear seats).

The Coil Spring wrote:

Out of curiosity, which Jimnys had LSPV and why? Seems little useful to me on a Jimny.


 

As fordem said, it is on the non-abs Jimnys to prevent rear wheel lock-up (which will cause the back to overtake the front)

There are two lines in, one from the front circuit, and one from the rear, which then goes out to the rear axle through the valve.

The bleed screw is in the line to the front which otherwise would be a dead end. (You actually don't need to mess with it if you are only playing with the rear brakes as air can't get in from the back, only the front circuit)

As long as there is front brake pressure, the rear pressure is reduced as the axle goes down and pulls the lever. Should the front pressure fail, and the rear brakes are all that is left, then full rear pressure is applied all the time whilst you are praying that the car will stop before it goes over the cliff.

BL FWD cars used to have some strange contrivance with a giant ball bearing inside to do a similar job, they also had a diagonal split baking system at one time too.

ABS cars don't need them as the ABS just cuts off the brake as soon as the wheel starts to lock anyway.