Powermaster rebuild

[fc227]

I am about to do one. I have the seal kit from Kirpen's . My question is when you press down the inner piston is there a stop where the outer piston move in to get @ the retainer clip ?

What I am referring to is piston guide, that is the one with the retainer clip on it ?

 

[BEATAV8]

these might help

 

[BEATAV8]

pdf

 

[fc227]

Thank you

 

[fc227]

So the Piston retainer will also move down , too allow the retainer to be removed

 

[Gene Van Horn]

Does anybody know if richard clarke still rebuilds these? I heard you can just send them to him and they will do it,also wondering how much it costs. What if you need more than just the seals, any parts available? I have two to get done and one on the car but that one is fine.

 

[TurboTGuy]

I am about to do one. I have the seal kit from Kirpen's . My question is when you press down the inner piston is there a stop where the outer piston move in to get @ the retainer clip ?

What I am referring to is piston guide, that is the one with the retainer clip on it ?

Joe,

Kirpen's, It's the Chinese knock off of the future...........

 

[fc227]

Well , I got the one I got off eBay apart.

 

[fc227]

Do parts 26 (Primary Piston assembly)(two grooves at the end & 23 (reaction piston)(one groove near the reaction disk) get "O" ring(s) on them ? If they do I have the wrong "O" ring kit or I got a different Power master unit

 

[fc227]

Ok, got the Power Piston apart. The very last piece in there (closest to the pedal push rod) how do you get that out ?

 

[BEATAV8]

Ok, got the Power Piston apart. The very last piece in there (closest to the pedal push rod) how do you get that out ?

The valve seat? Don't bother. Just leave it. That seal behind there never sees any action anyways.

 

[BEATAV8]

Do parts 26 (Primary Piston assembly)(two grooves at the end & 23 (reaction piston)(one groove near the reaction disk) get "O" ring(s) on them ? If they do I have the wrong "O" ring kit or I got a different Power master unit

No O rings on those. 26 has the piston seal on it but that's not included in the kirban kit last time I checked, so hopefully it's still good

 

[fc227]

No O rings on those. 26 has the piston seal on it but that's not included in the kirban kit last time I checked, so hopefully it's still good

thank you for the reply. The "piston seal" you are referring to is # 24 the reaction disk ? Yea, its there a little beat up

 

[BEATAV8]

No the piston seal is sandwiched between the spring and the piston

 

[BEATAV8]

These are the 3 piston seals that aren't included in the kit

 

[fc227]

Sorry I am confused.
Number 24 is there there and there is a good seal on the end of #22

 

[BEATAV8]

Just clean them up and inspect them for damage it's about all you can do. The Karps kit included these seals but they haven't delivered recently

 

[fc227]

The the seals , Sorry yes they are all there and in good shape.

 

[fc227]

Thank you very much for your help !

 

[BEATAV8]

Sounds good. Lots of dish soap and hot water to clean everything up, then compressed air to blow it all dry. apply some fresh brake fluid to re-assemble it all.

only time I've ever had one kick my ass was because of some lint / debris on the check valve so I learned then that cleanliness is critical on these units.