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-----Original Message-----
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Fri, 12 Jan 2007 12:24 PM
Subject: Re: [COUPERS-TECH] Master cylinder
Eliacim,
I had my master cylinder completely apart and replaced the seals which
were just o-rings. Getting it out is the hardest part just because of the
location. The second hardest part is putting the snap ring back in at the top,
which holds everything together. The reason is that the new o-ring has to be
slightly compressed to get the snap ring back into the groove. The only way I
found to do this was to use an "H" style shop press with an appropriate pushing
tool (so as not to damage the piston rod assembly coming out the top) such as a
1" socket (+/- I forget the exact size I used). Be careful to push only enough
to let the snap ring, "snap" into it's groove.
Decision to replace would be based on any scoring on the inside which
would prevent the piston o-ring from sealing. Also, the hole in the cap where
the rod comes through, gets elongated from the geometry of the brake pedal/rod
connection movement, and eventually wears enough that the tiny o-ring won't
seal it anymore. Then you must replace. John Cooper has an STC'd replacement
master cylinder. I don't know if any pedal mount connections have to be
modified for this replacement.
Darick
N94139 ("Miss Moneypenny")
-----Original Message-----
From: [EMAIL PROTECTED]
To: [email protected]
Sent: Tue, 9 Jan 2007 4:13 PM
Subject: Re: [COUPERS-TECH] Master cylinder
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advice
in this forum.]----
Noticed a couple drops of brake fluid in the belly of the plane.
Looks like it's coming from inside the plane.
Plane is braking fine. (I have Clevelands)
What are the most common sources of leaks there?
Should I suspect the master cylinder?
Replace or repair?
Is it easy to access?
Any and all advice will be appreciated
Eliacim
> Linda.
> It seems your little project became a big one already.
>
> Brakes: I learned from Lee at Skyport years ago that the original Ercoupe
> Master cylinder was designed to make the right pressure for the brakes the
> plane was delivered with these were the Hayes brakes I guess, not even the
> Goodyear's.
> Every Brake system is a system where the Master Cylinder should match the
> brake cylinders. A good match allows for sensitive braking power.
>
> My Coupe came with Cleveland wheels and the original master cylinder. I
> must say this works too, although I have to push the pedal down hard to
> hold the plane on a full power run-up.
>
> If you need to overhaul the master cylinder anyway, save the money and buy
> a matching master cylinder from Skyport. Sell your old one on EBay, that
> way it's not lost to the Ercoupers community and it gives you some of your
> money back.
>
>
> Hartmut
>
> ----- Original Message -----
> From: ncoastwmn
> To: [email protected]
> Sent: Monday, January 08, 2007 6:23 PM
> Subject: [COUPERS-TECH] Master cylinder
>
>
> Hi all,
> I'm putting Cleveland brakes on my coupe in the near future and am
> wondering if it is necessary to replace the master cylinder as
> well. I have read in the archives about better performance with
> the Matco m/c, but wanted to know if I can do that later or if it
> must be right away, to have the brakes work at all.
>
> Thanks,
> Linda
> N93443 (Gilda)
> sn 766
>
>
>
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