My '74 Crown Coupe is in need of a brake rehab. As discussed elsewhere on this forum and the other dark corners of the internet, several parts of this system are unique to the vehicle and possibly unobtainium: the rear rotors and master cylinder. Separating the master from the booster revealed at least part of the reason for my less than adequate stopping power: the master is leaking.
Queries to my local parts guys turned up nothing. (Well not entirely true-one place indicated a part in Michigan, but after waiting a few weeks for it to arrive the part in the box didn't match the part number on the box. Cue sad trumpets) Queries to my go to NOS vendors also turned up nothing. So I'm left with adapting something or sending the master out to be rebuilt.
In ordering parts I also ordered a master for a Chrysler Town and County (Cardone part number 10-1572). This part appears physically identical to the part removed from the Crown. Covers and gaskets are the same (contrary to the parts manual, which list different part numbers depending on Chrysler or Imperial), depth of the reservoirs are the same. The casting numbers look to be identical. I realize internally there should be a check valve for the rear on the non-Imperial master. Outside of that I can't see a reason not to remove the check valve and use the non-Imperial master. Any one want to chime in? Offer their knowledge? This car was in regular use until the late 90s, so I have no reason not to think the removed part is correct for the car (if not orginal). For reference the Cardone p/n for the Imperial specific master is 10-1575
Queries to my local parts guys turned up nothing. (Well not entirely true-one place indicated a part in Michigan, but after waiting a few weeks for it to arrive the part in the box didn't match the part number on the box. Cue sad trumpets) Queries to my go to NOS vendors also turned up nothing. So I'm left with adapting something or sending the master out to be rebuilt.
In ordering parts I also ordered a master for a Chrysler Town and County (Cardone part number 10-1572). This part appears physically identical to the part removed from the Crown. Covers and gaskets are the same (contrary to the parts manual, which list different part numbers depending on Chrysler or Imperial), depth of the reservoirs are the same. The casting numbers look to be identical. I realize internally there should be a check valve for the rear on the non-Imperial master. Outside of that I can't see a reason not to remove the check valve and use the non-Imperial master. Any one want to chime in? Offer their knowledge? This car was in regular use until the late 90s, so I have no reason not to think the removed part is correct for the car (if not orginal). For reference the Cardone p/n for the Imperial specific master is 10-1575
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