lookforjoe Posted May 21, 2015 Report Share Posted May 21, 2015 Old thread , archived. I finally spent some time to figure out making the hydraulic eBrake mechanism work. Motivated by the fact that the stock shoes were worn out again, and the cables (Volvo) I had replaced 4-5years ago were shite again.Made an adaptor plate to fit the mechanism to the control armMechanism in placeHose routingrepositioned cable locating bracket, to avoid sharp kink of stock orientationJust have to finish bleeding & remove all the stock eBrake crap. Link to comment Share on other sites More sharing options...
Big Will Posted May 21, 2015 Report Share Posted May 21, 2015 That's a pretty slick setup H. Are you worried at all about the spring being so exposed in terms road debris, salt, etc. or is that nothing to worry about? Link to comment Share on other sites More sharing options...
andyb5 Posted May 21, 2015 Report Share Posted May 21, 2015 So if I'm understanding this correctly, it uses a cable from the stock handle to apply hydraulic pressure to the rear caliper just as if you were hitting the brake pedal?Any concerns about pressure bleeding off over time while the car is parked? Link to comment Share on other sites More sharing options...
VolvoNor Posted May 21, 2015 Report Share Posted May 21, 2015 Is it on its own reservoir/circuit? Link to comment Share on other sites More sharing options...
loseR99 Posted May 21, 2015 Report Share Posted May 21, 2015 Is it on its own reservoir/circuit? Looks like brake line going to the e-brake, and from e-brake to caliper. Link to comment Share on other sites More sharing options...
VolvoNor Posted May 22, 2015 Report Share Posted May 22, 2015 Looks like brake line going to the e-brake, and from e-brake to caliper. Hm, yes I think you're right. Too bad if that's the case, because of norwegian rules I would need the e-brake to be on its own circuit with a separate reservoir to have it approved. I know drifters some times use an extra caliper for this. I hate the volvo stock "parking brake" with a passion. Link to comment Share on other sites More sharing options...
lookforjoe Posted May 22, 2015 Author Report Share Posted May 22, 2015 Yes, the hydraulic line feeds the mechanism, and then that feeds the caliper. Fluid passes through for normal braking, then the mechanical brake mechanism (lever/cable) operates on a piston in the mechanism that actuates the caliper pots. There is no reason it would drop pressure over time. It's basically a more complicated version of calipers that have this integrated into them. My X1/9 has rear calipers with integrated (cable operated) handbrake, and that was designed in the early 70's. Volvo S40's have eBrake in the caliper, it's the actuation that has to be mechanical. Link to comment Share on other sites More sharing options...
lookforjoe Posted May 22, 2015 Author Report Share Posted May 22, 2015 That's a pretty slick setup H. Are you worried at all about the spring being so exposed in terms road debris, salt, etc. or is that nothing to worry about?Not worried about that. I could build a deflector/shield for the underside, perhaps Link to comment Share on other sites More sharing options...
Ol' Dirty Noodle Posted May 22, 2015 Report Share Posted May 22, 2015 Volvo S40's have eBrake in the caliper, it's the actuation that has to be mechanical.Yeah it's actually a very good setup, I need to find a rear BBK that'll fit with the intergrated setup Link to comment Share on other sites More sharing options...
theForgottenone Posted May 23, 2015 Report Share Posted May 23, 2015 Regard s40, seem like everything is custom so nothing new. Link to comment Share on other sites More sharing options...
fattmatt805 Posted May 28, 2015 Report Share Posted May 28, 2015 so if you lose your brake fluid, lets say, from a burst brake line. How woud this work for slowing your vehicle in an emergency situation? should the ebrake be mechanical for just that reason? Link to comment Share on other sites More sharing options...
lookforjoe Posted May 29, 2015 Author Report Share Posted May 29, 2015 so if you lose your brake fluid, lets say, from a burst brake line. How woud this work for slowing your vehicle in an emergency situation? should the ebrake be mechanical for just that reason?The stock eBrakes on many cars (including the S40) are integrated into the caliper, so it's really not that different. Plus, you would have to blow the stainless braided lines on both sides at the same time to lose the eBrake. Odds are slim. Link to comment Share on other sites More sharing options...
Dick Dastardly Posted May 29, 2015 Report Share Posted May 29, 2015 All GM trucks use cable actuating the hydraulics in the rear calipers too. Never understood the reasoning behind Volvo and BMW using the stupid separate drum e-brake Link to comment Share on other sites More sharing options...
Brad850 Posted May 29, 2015 Report Share Posted May 29, 2015 Same reason they put the main window controls directly under the cup holders. And why the hardest bolts to get to tend to be torx. Link to comment Share on other sites More sharing options...
Che'_Moderator Posted May 29, 2015 Report Share Posted May 29, 2015 Every hydraulic e-brake I have used would leak down over time. IE parked a very long time. Personally I only like them as line-lockers. Link to comment Share on other sites More sharing options...
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