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Brake Master assy 1646521


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You may want to check speedway auto in AZ.<BR>They are expensive but will have the parts.<BR>you can also check with Jim Finn in Duluth, MN. Do a search for his name and you should get contact info.<BR>Good Luck. grin.gif" border="0

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I am glad you asked what happen... I was having my car serviced at the local Buick dealership for a leak. I was having to add brake fluid every other week. Anyway they replace the high pressure hose 25528384. I was driving my car two days later and had to apply the brakes hard... and lost power to the brakes.I heard a loud noise from under the hood. I found the hose off, it also pull the threads off of the master cylinder. I complained to the service manager and GM,and also Buick customer service #. They offered to take off $250 off on the $1800 part. I had my car towed back home. Have anyone had the threads come off the master cylinder? I feel that they cross threaded or over tighten the hose. I have the parts, How can I prove this? Could a "good" machine shop repair? Please advise. Thanks in advance.

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Guest wally888

Your answer raises another question!<BR> Why did Buick (Teves) replace the hose, mid year 1988? Some 88's have the 89 configuration, a steel tube.<BR> Don't think there was a Service Bulletin.<BR> Maybe Barney knows.<BR> Sounds like a cross thread to me unless(have not looked at housing) some one tightened 1st, cracked housing, then installed the new hose.<BR> If the housing is large enough, it could be drilled, rethreaded larger and NAPA could make you a hose. I made this up but someone can confirm or deny.<BR> Think I would have been more assertive, maybe not too late. Can anyone think of a logical reason the fitting would blow out?<p>[ 05-29-2001: Message edited by: wally888 ]

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Sounds like you should go a little higher up the food chain at the dealership & get them to take resposibility for the damages. ... and find a better dealership next time if these guys don't own up to it.

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I agree with everyone else. Someone messed up and crossthreaded the line. I too would be a squeaky wheel till I got some oil. As a recommendation to getting a new one, I highly reccomend Jim Finn. His email is jfinn@computerpro.com I have dealt with Him and He does everything He can to verify the quality of the parts and He is reasonable.

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Someone said "ask Barney" (he has an opinion on everything)<P>I believe the reason was cost. <P>1st design..... high pressure hose with a machined connection crimped on both ends, plus the special hollow bolt on both ends. Plus 4 sealing washers. <BR>Total cost 53.68 (1992 parts book)<P>2nd design.... standard steel brake line with a flair nut on each end.<BR>Total cost 23.20 (1992 parts book)<p>[ 05-29-2001: Message edited by: Barney Eaton ]

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  • 4 weeks later...

How hard is it to install a complete master cylinder assy on an 88 model? I do not have a shop manual... I have worked on all my autos before the Reatta

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The master cylinder is very expensive and not economically feasable. It could probably be rethreadeed oversize and some sort of adapter installed, but no shop would undertake such a repair due to liability.<P>Your best bet is to find a complete used assembly and swap it out. If you wish, the used unit can be rebuilt for a reasonable price.<P>Installion/removal consist of removing several electrical plugs, three hydraulic brake lines, either two or four nuts/bolts and the push rod pin. Not too bad unless you round off one of the hydraulic line hex nuts.<P>The brakes are the number one problem with the pre 1991 Reatta, but reasonable cost repair options are available.

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