<html><body>It sure sounds like air. The 100 system is difficult to bleed due to the placement of the wheel cylinders and bleeders. I like to pull out the fluid rather than push out the stuff. Use something like a Mityvac to do this starting at the right rear. <div><br></div><div>The smallest bubbles will create a lot of pedal travel but if it pumps up to a hard pedal then its for sure air in the system. Keep the cap on the canister when bleeding and check under the canister for a wet finger. Moss has good seals for that purpose.</div><div><br></div><div>The word "new" in brake systems scares me, as there are so many crappy replacement parts made in foreign countries that look like good new items. I prefer to rebuilt original or sleeve them if necessary to use the original items. The seal kits are another story. Can you find good Girling repair kits. Many of the foreign replacements are knockoffs of the original. Use TRW (they bought Lockheed) only-not unknown brands...even new Lucas is not old Lucas.</div><div><br></div><div>I pumped and pulled gallons of brake fluid thru a MKI bugeye system only to find the seal stuck in the back of the master cylinder because the Moss purchased seals were too big! Use TRW. When I got the replacement seals from them, they had the same number stamp on the seal. They are using the same molds to make the seals.</div><div><br></div><div>Did you use red grease on all the threaded fittings? Check all for a wet finger. Hope this info lessens your frustration. A word that goes hand in hand with brake bleeding. Hank<br><br><div class="reply-new-signature"></div><p>-----------------------------------------</p>From: "warthodson--- via Healeys" <healeys@autox.team.net><br>To: "healeys@autox.team.net"<br>Cc: <br>Sent: Monday March 13 2023 12:07:18PM<br>Subject: [Healeys] 100 brakes<br><br>
<div style="color:#000000;font:12pt 'Comic Sans MS', sans-serif;">We
are having a very difficult time adjusting & bleeding the brakes on
a friend's BN1.
<div>The car has recently under a full ground up restoration so
things like brake lines including flex lines are new, seals in the
brake cylinders are new, the master cyl. is new, etc.</div>
<div>We bleed the system so many times different way that I have
lost track. </div>
<div>We have adjusted the free play to assure that the plunger is
able to return to the full "off" position.</div>
<div>When we adjust the operating rod to achieve the specified 1/8"
free movement at the pedal.</div>
<div>We have adjusted the brake shoes to have a very slight drag at
rest.</div>
<div>Our issue is:</div>
<div>Excessive brake pedal travel before the brakes begin to be
effective. </div>
<div>Pumping the brakes temporarily improve the pedal travel issue,
which we think indicates air still in the system.</div>
<div>We are not having any leaks & the reservoir port is
functioning correctly, IE: no locking up of the brakes. </div>
<div>Gary</div>
<div> </div>
</div>
</healeys@autox.team.net></div></body></html>