Don't get the O rings from a plumbing house unless they sell something that
will resist brake fluid or you have changed to Dot 5. The proper material
is EP, ethylene propylene. An O ring supplier will have the proper rings,
but probably not a plumbing house.
Sam
At 12:55 PM 2/5/1999 -0500, Power British Performance Parts, Inc. wrote:
>
>Michael L. Coop wrote:
>
>> Hello Listers, I'm still working on the brake system rebuild on my '78 Spit.
>> Last night, I finished reinstalling the newly re-built calipers, repco pads,
>> new shoes, new wheel cylinders, turned rotars and drums, and braided
>> stainless steel hoses.
>>
>> About 3 years ago, I had already replaced the master cylinder with a new
>> one.
>>
>> As my helper and I began bleeding the brakes, we noticed that we were making
>> very little progress in achieving a good amount of brake pedal. We started
>> with the longest line (right rear) and proceeded sequentially to the next
>> longest line until all lines had been bled.
>>
>> While topping up the reservoir, I happened to notice that the PDWA unit was
>> leaking brake fluid. At first, I thought perhaps the Master Cylinder had
>> overflowed onto the mounting surface of the PDWA. So, I thoroughly cleaned
>> up the fluid and began bleeding the system again.
>>
>> Sure enough, the PDWA is definitely leaking. It appears to be leaking from
>> the area where the electrical snap connector attaches to the unit.
>>
>> I don't have a clue where to find a replacement PDWA. I don't think they
>> are in production anymore. And, Haynes and Bentley both say they aren't
>> re-buildable.
>>
>> HELP! Anybody got a good idea about how to solve this problem?
>>
>> Mike Coop
>> Michael Coop Agency, Inc.
>
>Mike,
>
>You can remove the big plug on the one end and remove the shuttle (take out
>the switch
>first). There are two o-rings on the shuttle that seal the center area
>where the
>switch is. These are probably bad. Any good plumbing supply should have the
>o-rings. Be sure that you center the shuttle before reinstalling the switch.
>
>Good luck!
>
>--
>Regards,
>
>Brian Schlorff '61 TR-4 '64 TR-4 '72 TR-6 '79 Spit
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> 371 E. Main St. on the 'net!
>Norristown, PA 19401
> (610) 270-0505 http://www.powerbritish.com/~britcars
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>
>
>
>
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