Before I head back out to the (very hot) garage, I'll share another of my perhaps tedious errant Healey misadventures. Some may recall that I installed a British Victoria aftermarket servo in my '60 BN7 a few years back. The first series 3000 did not come with servos. Since I thought that because later cars used the larger 7/8" master cylinder, I should have one. And did. While the new servo passed the function test, I found I had good braking but a pretty heavy pedal. The Forum wise men then advised that I erred, that the heavy pedal was caused by pushing more fluid. Advice was to return to the original 5/8" standard master cylinder. I had one on hand, and I recently installed it. Did not pre-bleed it, but had brake fluid in it at installation. Did the usual two-man bleeding operation and had a low pedal. Did it all around again. Drove the car with the low pedal but a nice braking feel. I've now lost track of the number of times I've bled the system. At times I found I was getting a clunking sound from the vicinity of the servo with the car at rest, but not on the road. At times I had a good pedal in the garage and a low pedal when driving (very cautiously). Having worn out my pedal pusher--and such a pity as he can now distinguish between the clutch and brake pedals--I then tried using my Mighty Vac (not recommend by Nock) with the same result. Tried a recently purchased one-man bleeder and go no result. Then, dipping deep into this Forum's fairly massive brake bleed history, I tried a new method that goes like this: Acquire several feet of slightly undersize plastic that will slide snugly inside the normal clear plastic tubing, in my case the tubing and bleeder fitting from the Mighty Vac. Then run the new tubing up over a support higher than the fluid reservoir, and then submerge the downstream end in brake fluid in a bottle. The neat thing about this system that was revealed and then illustrated in earlier Forum postings is that you can arrange this whole system so you can see it from the driver's seat. So, tap open the bleeder with tubing attached (having smeared grease around fitting to prevent the escape of brake fluid, a second choice to the better but messy practice of wrapping a few turns of teflon tape over the threads) sit in driver's seat, gently pump pedal, watch fluid climb to the top of the tubing and plummet downward into the bottle, making sure no more air bubbles are emerging, climb out, crawl behind subject wheel, snug bleeder. Top off reservoir. Repeat at other three wheels. I put a lot of faith in this system but still got a low pedal and servo clunk with brake pedal push. That sound goes away when car is running. Perhaps I should have used prop of some kind to hold the brake pedal down while I dismounted to disconnect the bleeder, but that wasn't among the instructions and the fluid did not retreat back to the bleed point. Obviously, I can disconnect the servo and reconnect the original line between the master cylinder and the four-way brake line junction--I had left it capped but in place upon installing the servo with a new line. But that would be accepting defeat. Obviously I am overlooking something that is amiss.