Re: Easamatic Rebuild Sources
Posted by 55PackardGuy On 2013/8/18 20:23:44
Quote: 
Thanks for your thoughts on the thread, Jim. And for keeping it light. I'm interested in whether or not you had it in mind to rebuild that crusty BTV out of the car with the blown engine, or if you've had experience with any other BTV rebuild?
PackardV8,
The video on the BTV is interesting. He lays full blame on the compensator valve. The location of the BTV on the Lincoln is also interesting. Note how the firewall mounting, basically putting the vacuum section "level" required the reservoir cover to be slanted to offset the pitch of the reservoir, which sits at quite an angle with the rest of the MC in that position.
I still wonder if there aren't two conditions going on when the pedal goes to the floor and no amount of pumping can get pressure. It seems possible that this is such an occasional occurrence that it requires a "perfect storm" of a stuck compensator valve and vacuum pulling fluid into the vacuum section. That's only an opinion, but how many people who have reported firsthand on these failures are looking for smoke in the rear view while they're struggling to grab the emergency brake? The smoke may be an "underreported" symptome in firsthand accounts of BTV failure.
Jim L. in OR wrote:
Interestingly, there doesn't seem to be much evidence of current day problems back when these cars were new & late model daily drivers though a friend had a BTV equipted 56 Olds 98 Holliday 2 dr that had sudden brake failure in the 60s.
Of course these were times when a politician cojld lay everything but the Atlantic Cable and the press would keep his secret. Car companies spent lots of advertising dollars.
Thanks for your thoughts on the thread, Jim. And for keeping it light. I'm interested in whether or not you had it in mind to rebuild that crusty BTV out of the car with the blown engine, or if you've had experience with any other BTV rebuild?
PackardV8,
The video on the BTV is interesting. He lays full blame on the compensator valve. The location of the BTV on the Lincoln is also interesting. Note how the firewall mounting, basically putting the vacuum section "level" required the reservoir cover to be slanted to offset the pitch of the reservoir, which sits at quite an angle with the rest of the MC in that position.
I still wonder if there aren't two conditions going on when the pedal goes to the floor and no amount of pumping can get pressure. It seems possible that this is such an occasional occurrence that it requires a "perfect storm" of a stuck compensator valve and vacuum pulling fluid into the vacuum section. That's only an opinion, but how many people who have reported firsthand on these failures are looking for smoke in the rear view while they're struggling to grab the emergency brake? The smoke may be an "underreported" symptome in firsthand accounts of BTV failure.
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