Tr6PI Posted September 22, 2018 Report Share Posted September 22, 2018 Hi Guys, It's seems that my brake booster don't has much impact in the braking force, i removed the master cylinder and the gasket between the rod and the brake servo body falled apart itself so i think that it's time for a brake servo overhaul. I've rebuild myself the servo about eight year ago but for my opinion the quality of the gaskets in the rebuild kits it's not as good as the original parts. Now the big dilemma; buy a new servo or recondition again my own unit?? I've read some bad things about new brake servos, the clevis the was too short to align with the hole in the pedal blade, quality not very high etc. I can recondition again my servo, but what rebuilding kit will have good quality parts?? The third possibilty can be return/exchange my unit for a reconditioned one, do you have any contact that can do this in UK or Europe?? I'm from Italy... Your valuable advices can help me to take a decision! Thanks Quote Link to post Share on other sites
Andrew Smith Posted September 22, 2018 Report Share Posted September 22, 2018 I've used Past Parts to recondition original servos and MCs (resleeve in s/s), not cheap but takes the roulette experience out of using poor quality reproduction units. Link: http://www.pastparts.co.uk/ Quote Link to post Share on other sites
John Bracher Posted September 22, 2018 Report Share Posted September 22, 2018 Not wishing to upset any purists, but how about a 'modern' one? I heard some while ago that there is a Volvo(?) unit that is pretty much a straight swap?? Anyone know any more/any others that may be suitable? Can't imagine there are many 'patterns' of servo, much like other brake components etc?? Quote Link to post Share on other sites
Tr6PI Posted September 22, 2018 Author Report Share Posted September 22, 2018 I'm not purist at that level so i'm disposed to fit also the Volvo one if it's straight swap. Do you've more info about, a code?? In which volvo models have been fitted? If there're other straight swap servo available i'm disposed of course..... Quote Link to post Share on other sites
stuart Posted September 22, 2018 Report Share Posted September 22, 2018 I think one of the German guys mentioned the use of a Volvo one, it might well be a 740/940 type. Stuart. Quote Link to post Share on other sites
KiwiTR6 Posted September 22, 2018 Report Share Posted September 22, 2018 Waldi has mentioned it recently. I think it was a modified Volvo item from a specific supplier rather than a straight swap. No doubt he'll chip in with the full storey shortly. Gavin Quote Link to post Share on other sites
Waldi Posted September 23, 2018 Report Share Posted September 23, 2018 Hi Gavin, yes, it is a ready to fit servo, which includes 2 new brake pipes (since the MC will relocate a bit). It can be bought in The Netherlands for around 280 euro's. I have no connection or experience with this servo, will first see how my car brakes on the standard servo which I reconditioned. I tried to find from which Volvo it came but had no luck. Regards, Waldi Quote Link to post Share on other sites
TR674 Posted September 26, 2018 Report Share Posted September 26, 2018 I bought a new one from the US. I also installed new rotors/pads and new back cylinders/shoes. Brake performance was markedly improved, but I can't really say if the booster was a single factor in the improvement. Quote Link to post Share on other sites
KiwiTR6 Posted September 28, 2018 Report Share Posted September 28, 2018 I stripped and cleaned my servo unit after if had filled with brake fluid from a faulty master cylinder. The hardest part was splitting the two halves as the tabs had been bent over too prevent them from separating. Other than that it was very straight forward. To increase it's effectiveness I have installed a 12v servo vacuum pump from a wrecked Audi which is activated by an adjustable vacuum switch designed for kick-down on auto transmissions. This is set to maintain 12" of vacuum and apart from pump the noise at idle and low speed, it works very well. It didn't take a lot of time or expense to set up and is a good alternative to the double diaphragm booster. Gavin Quote Link to post Share on other sites
KiwiTR6 Posted September 28, 2018 Report Share Posted September 28, 2018 (edited) A better photo - editor wouldn't allow me to update the original image. Edited September 28, 2018 by KiwiTR6 Quote Link to post Share on other sites
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