Eric33

Hi,

I had got a leakage between the hydraulic pump and the pressure switch.
I have changed the o-ring on the pressure switch.

The leakage decreased but small drips are always here.

I heard that some pressure switches had got problems and in these cases, it was better to change the switch too.

Some ideas?

Indycam

Hiya Eric 33
The switch can leak . It is under lots of psi / bars , so its understandable if it does leak .
Where are you ?

Johnny G Pipe

I had this and changed my switch, all good now. Watch the delicate threads on the pump. The switch isn't expensive, the pump is.

Eric33

Thanks for your answers.

I'am from france

bzh on the loose

I though on the avatar "location: France-Bordeaux" was quite self explanatory...
I see you coming already, making an "offer of service"

after fixing my clutch (which seems ok, pedal quite light according to my father) and installing new rotor/pads you could go down to Bordeaux and fix Eric's leak on the soon to come

INDYCAM MECHANICAL EUROPE TOUR 06

Indycam

The location was added after I asked , I think .

I will bring the parts and tools with me , if you like . When would be good for you ?

Eric33

Indy, you're right : I have completed my profile after reading your question !

Concerning the switch, I am able to change it. The only thing I want to understand is how it is possible to avoid leakage by changing the switch and not only the o-ring...

Indycam

Hiya Eric33
I don't understand your question 100% so I'm going to answer what I think you are asking .
The oring seals the connection from the switch to the pump . The inside of the switch has to be sealed or the fluid would just flow out of the end of the switch . The inside of the switch has to have parts that move under very high pressure with out leaking . The seal on the internal parts are not perfect / lifetime parts . I wish I knew French . Its been on my list of things to do for a very long time .

Eric33

I had changed the o-ring seal beacause I saw a small leakage through the thread beetween the switch and the pump. It's better now but not completly sealed.
I read that it could be necessary to change also the switch and I would like to have your opinion about that . Look at that