Arrgghh! Brake MC replacement...

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User1

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<TABLE cellSpacing=1 cellPadding=6 width="100%" border=0><TBODY><TR><TD colSpan=2><TABLE width="100%" border=0><TBODY><TR><TD style="PADDING-TOP: 4px" vAlign=top colSpan=2>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Arrgghh! Brake MC replacement...<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial]March 22 2000 at 11:13 AM[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "x";n54_em = n54_em + "1";n54_em = n54_em + "9";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "@";n54_em = n54_em + "t";n54_em = n54_em + "m";n54_em = n54_em + ".";n54_em = n54_em + "n";n54_em = n54_em + "e";n54_em = n54_em + "t"; document.write("x19er"); // --> </SCRIPT>x19er <NOSCRIPT></NOSCRIPT> [/FONT]</TD></TR><TR><TD vAlign=bottom colSpan=3><HR></TD></TR><TR><TD colSpan=3>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Any tips/tricks, etc. before I dive in this weekend to replace the brake MC on my '86 X? I can't put it off any longer.

John
<!-- google_ad_section_end -->

[/FONT]</TD></TR></TBODY></TABLE><TABLE cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top noWrap align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
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[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Author[/FONT]</TD><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Reply[/FONT]</TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Ulix[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Just did it: not so bad<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]March 22 2000, 2:50 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->John,

if you are mentally prepared and expect a hard job, it's not so bad.

Tips:
* Replace both M/Cs while you are in there.
* Remove driver's seat and steering column.
* Put plenty of padding on top of rocker and on the floor next to car for you knees and a sheet plastic under the pedals to catch fluid.
* Undo the remaining 2 13mm nuts that hold the pedal box in, unscrew supply hoses from reservoirs and let drain into pot. Then use 10mm flare nut wrench to undo metal brake lines, clutch line nut is bigger (12mm?).
* Now you can remove the whole pedal box and put it on the bench.
* Remove m/c's, then inspect the holes in the pushrods (and the nubs on the pedals that engage them) for wear and elongation. If they are worn, you'll have to fix this. New pushrods aren't available AFAIK, but I could be wrong.
* If the pedals and box are rusty, you may want to sandblast and paint them.
* New M/Cs don't have dust boots (why not?!!!), I had them because I had rebuild kits too (the one for the clutch was way too small and tore).
* Reassemble pedal box, lubing the pushrod holes.
* My biggest problem in reinstalling was that the reservoir lines appeared to be too short. It turned out they can be stretched a little to install them. You may want to let new fluid from the reservoir dribble out the hoses so that they are full of fluid -> easier bleeding.
* I used Speedbleeders for the first time and highly recommend them (clutch too). Also, one of those bottles that you stand on your reservoir filler upside down that automatically refills it would be great.
* I had a leak. The flare nut of the metal line to the rear brakes would bottom out in the hole of the new m/c before pushing the flare down tight. I filed the nut a little more pointed at the end and all was well. Very annoying though.

Don't put yourself on a schedule. If for instance it turns out that your pushrods are worn, you will have to figure out how to fix this and the job will take much longer.

Good Luck,

Ulix
'67 Sprite
'74 X1/9
http://www.mirafiori.com/~ulix <!-- google_ad_section_end -->

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[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Ulix[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Addendum<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]March 22 2000, 2:53 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->If you are wondering how to reinstall the top one of the two rear washers and nuts of the pedal box, superglue the washer to the nut. Now you can put the nut and washer in your socket and easily get it back on.
The superglue breaks while you are tightening the nut.

Ulix
'67 Sprite
'74 X1/9
http://www.mirafiori.com/~ulix <!-- google_ad_section_end -->

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[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->One more tip<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]March 23 2000, 4:55 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Make an appointment with your chiropractor for the next day.<!-- google_ad_section_end -->

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[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "j";n54_em = n54_em + "b";n54_em = n54_em + "r";n54_em = n54_em + "o";n54_em = n54_em + "d";n54_em = n54_em + "y";n54_em = n54_em + "@";n54_em = n54_em + "u";n54_em = n54_em + "s";n54_em = n54_em + "a";n54_em = n54_em + ".";n54_em = n54_em + "n";n54_em = n54_em + "e";n54_em = n54_em + "t"; document.write("John Brody"); // --> </SCRIPT>John Brody <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->pivot lube<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 1 2000, 9:07 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Just an additional note.... when I replaced my set of master cylinders, I sanded and lubed the pivot rod and bushings for both of the pedals. Much smoother operation.<!-- google_ad_section_end -->

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[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Mac[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->good idea<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 2 2000, 10:19 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->If the eye-hole on the rods get too dry or out-of-round, they will start to chew themselves up, along with the little post on the side of the pedal arm which goes through the eye-hole.

If this is allowed to happen without eventually cleaning them up, they will eventually chew themselves to bits, and then one day you hit the pedal and `pop' - there went the rod!

Definitely a good idea to clean those up! -Mac.


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