Post #1
When lowering a 306, will the brake compensator be stuck open with full brake power to the rear?
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displaying posts 1 to 15 of 15
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 peugeot96
Regular  Location: verdal Registered: 14 Sep 2011 Posts: 218 Status: Offline |
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 Posted 24th Sep 2013 at 21:27
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dcc
Senior User  Location: Wales Registered: 24 Feb 2009 Posts: 502 Status: Offline |
Post #2
yup, sure will be.________________________________________ 205 GTIXsara HDI |
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Posted 24th Sep 2013 at 21:33
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peugeot96
Regular Location: verdal Registered: 14 Sep 2011 Posts: 218 Status: Offline |
Post #3
Strange, it feels like l dont have braks at the rear. |
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Posted 24th Sep 2013 at 21:37
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footah212
Senior User  Location: Paisley Registered: 16 Sep 2010 Posts: 861 Status: Offline |
Post #4
peugeot96 wrote: Strange, it feels like l dont have braks at the rear. The compensator operates as the car tilts forward under braking. If it's lowered equally front and back then surely there is very little difference to how it operates? ________________________________________ Phase 2 Blaze GTi6PS3 - Black Ops 2 Engine crane for hire Renfrewshire |
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Posted 24th Sep 2013 at 22:41
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footah212
Senior User Location: Paisley Registered: 16 Sep 2010 Posts: 861 Status: Offline |
Post #5
Plus I thought when it opens , it releases braking pressure from the rear brakes so as not to lock them. At no time does it put all the braking to the rear .That's my understanding anyway! ________________________________________ Phase 2 Blaze GTi6PS3 - Black Ops 2 Engine crane for hire Renfrewshire |
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Posted 24th Sep 2013 at 22:45
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JWP EFi
Turbo Legend!  Location: edinburgh Registered: 07 Mar 2010 Posts: 2,163 Status: Offline |
Post #6
more weight over rear axle means more braking to the rear. |
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Posted 24th Sep 2013 at 22:49
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dcc
Senior User Location: Wales Registered: 24 Feb 2009 Posts: 502 Status: Offline |
Post #7
you never will have all the braking at the rear due to the difference in piston sizes, and also on most 306's the disk diameter.________________________________________ 205 GTIXsara HDI |
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Posted 24th Sep 2013 at 22:50
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footah212
Senior User Location: Paisley Registered: 16 Sep 2010 Posts: 861 Status: Offline |
Post #8
dcc wrote: you never will have all the braking at the rear due to the difference in piston sizes, and also on most 306's the disk diameter. If lowered equally front and back why would there be more weight to the rear Seb? ________________________________________ Phase 2 Blaze GTi6PS3 - Black Ops 2 Engine crane for hire Renfrewshire |
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Posted 24th Sep 2013 at 22:56
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footah212
Senior User Location: Paisley Registered: 16 Sep 2010 Posts: 861 Status: Offline |
Post #9
peugeot96 wrote: When lowering a 306, will the brake compensator be stuck open with full brake power to the rear? When it's open it releases pressure from the rear brakes doesn't it?? ________________________________________ Phase 2 Blaze GTi6PS3 - Black Ops 2 Engine crane for hire Renfrewshire |
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Posted 24th Sep 2013 at 22:58
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JWP EFi
Turbo Legend! Location: edinburgh Registered: 07 Mar 2010 Posts: 2,163 Status: Offline |
Post #10
i'm not saying you would have extra, i was briefly explaining the basics of how it works. Even if front to rear ride height was the same you will or at least should have more effort to the rear as once the beam is lowered you are now acting upon the load compensator hence the above |
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Posted 24th Sep 2013 at 23:01
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footah212
Senior User Location: Paisley Registered: 16 Sep 2010 Posts: 861 Status: Offline |
Post #11
T99PUG wrote: i'm not saying you would have extra, i was briefly explaining the basics of how it works. Even if front to rear ride height was the same you will or at least should have more effort to the rear as once the beam is lowered you are now acting upon the load compensator hence the above Wasn't having a go bud , was just checking what you were meaning and my understanding of how it works. Anytime I'm under my car it is fully shut, I assumed it only opens when the weight transfers forward? ________________________________________ Phase 2 Blaze GTi6PS3 - Black Ops 2 Engine crane for hire Renfrewshire |
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Posted 24th Sep 2013 at 23:07
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JWP EFi
Turbo Legend! Location: edinburgh Registered: 07 Mar 2010 Posts: 2,163 Status: Offline |
Post #12
i know you wern't having a go. when the valve opens it allows more fluid to reach the calipers (rear)assuming your compensator is in good condition,ie,not seized, put something heavy in the boot then have a look underneath, you will see whats happening. |
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Posted 24th Sep 2013 at 23:15
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footah212
Senior User Location: Paisley Registered: 16 Sep 2010 Posts: 861 Status: Offline |
Post #13
T99PUG wrote: i know you wern't having a go. when the valve opens it allows more fluid to reach the calipers (rear) assuming your compensator is in good condition,ie,not seized, put something heavy in the boot then have a look underneath, you will see whats happening. Will do, it seems my understanding of what that thing does is different. My theory was:- In the photo the compensator is closed. The bolt that activates the compensator, is loose at this point. When the distance between the lhs bolt mount ( beam tube end) and the rhs bolt mount( boot floor end ) increases ,the bolt then opens the valve. This increases the volume of the cylinder in the compensator and relieves braking pressure from the rear brakes. That distance would increase and activate the compensator as the car nose dives under braking hence helping to prevent locking the rears. Lowering the car or adding weight to the rear would decrease the distance between the lhs mount and the compensator lever thus allowing more travel in the suspension before pressure is released? footah212 has attached the following image: ________________________________________ Phase 2 Blaze GTi6PS3 - Black Ops 2 Engine crane for hire Renfrewshire |
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Posted 25th Sep 2013 at 00:15
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dcc
Senior User Location: Wales Registered: 24 Feb 2009 Posts: 502 Status: Offline |
Post #14
No.As the trailing arm moves up the lever arm is pushed in by the rod, this opens the vakve more to allow a higher pressure to the rear caliper. ________________________________________ 205 GTIXsara HDI |
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Posted 25th Sep 2013 at 08:37
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footah212
Senior User Location: Paisley Registered: 16 Sep 2010 Posts: 861 Status: Offline |
Post #15
dcc wrote: No. As the trailing arm moves up the lever arm is pushed in by the rod, this opens the vakve more to allow a higher pressure to the rear caliper. Oh well back to braking system training school for me then  ________________________________________ Phase 2 Blaze GTi6PS3 - Black Ops 2 Engine crane for hire Renfrewshire |
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Posted 25th Sep 2013 at 11:27
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