We tested the unit this morning and it performed like new. The unit will be on its way back to its owner Monday.
But in the interim of this rebuild we had another unit come in as well. This unit was working but suffering from the pedal sticking when depressed. So since we were testing the freshly rebuilt one. I decided analyzed and test the one that just came in prior to rebuilding to see what was working and if we could recreate the customers complaint. Once hooked to the machine in held vacuum but when depressed it did exactly what the customer described in that the power piston did not return but it did create hydraulic pressure. I removed the reservoir cover the and inside was the cleanest of the units that we have gotten so far. But it to have rust color brake fluid. I than remove the power section cover and removed the power piston and just like in the 2 other units the fluid had leaked into the vacuum section creating a rusting sludge/goo that was causing the leather seal on the power piston to stick.
Disassembly of the unit will begin in Monday
Thanks
James
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