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Thanks a lot, Dave. Great (and understandable) info! That will really help. /Karl-Olov > -----Ursprungligt meddelande----- > FrŒn: Dave Hall [SMTP:dave@hallvw.clara.co.uk] > Skickat: den 4 december 1998 02.07 > Till: Sandin, Karl-Olov; jadney@vwtype3.org > Kopia: type3@vwtype3.org > €mne: Re: [T3] 73 Front Brakes on a '70 > > Type 36 with 4 piston calipers > Bleeding the brakes > The system can be bled either by pumping the pedal or by using a > pressure bleeding appliance. The correct sequence is as follows: > > 1 - Right rear wheel cylinder. > 2- Left rear wheel cylinder. > 3- Right caliper, outside (bleeder screws 1 and 2). > 4- Right caliper, inside (bleeder screw 3). > 5- Left caliper, outside (bleeder screws 1 and 2). > 6- Left caliper, inside (bleeder screw 3). > > ASCII rendition of bleed nipple layout (picture shows left-hand > caliper), looking at pad spreader spring:- > > 1 > 4 2 3 5 > 6 > > (6 is the lowest one and 1 sticks upwards; not sure if the > right-hand caliper is identical, but it must be obvious or they > would show both as they do for the K70). > > Note > The screws 4, 5 and 6 are only for brake fluid changing and must not > be opened when bleeding the brakes. > > Changing brake fluid > > 1 - Pump fluid out through bleeder screws in rear wheel cylinders. > 2 - Open screws 4, 5 and 6 on both front wheels and pump out more > fluid, > 3- Open screws 1, 2 and 3 and leave them open until fluid no longer > drips from screws 4, 5 and 6. > Put new fluid in and bleed system as explained above. > > > Source: VW Factory Workshop Manual, 1969 edition (Supplement 8/72) > Brakes, Wheels, Tires, Hand and Foot Controls. (VW 'God' to us!) > > Dave. > UK VW Type 3&4 Club > www.hallvw.clara.net/ > -----Original Message----- > From: Sandin, Karl-Olov <Karl-Olov.Sandin@MoDoSkog.MoDoGroup.com> > To: 'jadney@vwtype3.org' <jadney@vwtype3.org> > Cc: 'type3@vwtype3.org' <type3@vwtype3.org> > Date: 02 December 1998 12:48 > Subject: Re: [T3] 73 Front Brakes on a '70 > > > >Jim Adney wrote: > >>> > >>Cool is right! I never thought I'd ever get to hear about one of > >>those. Do you know the diameter of the pistons? I doubt the > braking > >>power is any different, just the safety thing. > >>> > > > >Hello Jim! > >I have measured the pistons for you, and the diameter is 30 mm. The > calipers > >have 6 (six!) bleeder valves...only God knows in which order I > should bleed > >this system... Don't really need to - just want to change the > fluid. Any > >hints? > > > >You are probably right about the safety thing. It seems to be a > full > >triangular split system just as on the Volvo. The MC is special on > this > >model. > >See excellent scheme from Dave Hall, publiced by Greg, on this > page: > >http://vwtype3.org/scrapbook/4pot/ > > > > > >-Too-de-loo-o ... :-) > > > >/Karl-Olov Sandin > >-73 Squareback > >(- I always knew she was someting special...) > > > >------------------------------------------------------------------- > >List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org > >