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Old 05-10-2012, 02:10 AM
ian2000t ian2000t is offline
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Join Date: Feb 2011
Location: West Mids, UK
Posts: 226
Default Brake Vacuum issues

I have a weird problem probably to do with the Vacuum pump.

If I press the brakes normally, they feel ok (fairly light).

But if I have to press them quickly (you know, when you want the brakes to work most efficiently), they feel completely unassisted, like there is no vacuum. I've also noticed if you press the brakes once, then release and press again straight away, they also feel unassisted the second time.

Need to get it sorted because although I am used to it to an extent now, and I know if it feels a bit heavy I'm going to have to push damn hard, I'm not sure my fiancee would.


Problem with the vacuum pump? I've heard of broken springs in them before. Is there a rebuild kit? Can I dismantal it to check anything?
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1990 Volvo 765 D24Tic (factory UK spec Tic). Monark 273 nozzles 163bar, Ajusa MLS gasket, 16psi, Water Injection, 17" Titans with 25mm H&R spacers, running 85% WVO/SVO.
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