brake rod

D

Dave Derer

Guest
No it is a bad idea. The way you have it now does work. So do tires with
out inner tubes and no bead. The way you have it now is brake rod is
positioned only on outside edge of piston. A weak or broken brake spring
can bounce pedal and rod can fall off. By fitting rod to bore properly,
it is inserted inside and is much safer. Plus when someone else owns and
then repairs the car they wont be stuck with a short rod. Possible
suggestions that can be lethal should be deleted. Later Dave the Wave


[Non-text portions of this message have been removed]
 
W

WB6WSN

Guest
----- Original Message -----
From: Dave Derer
To: amphicar-lovers@yahoogroups.com
Sent: Friday, February 20, 2004 5:27 AM
Subject: [amphicar-lovers] brake rod


No it is a bad idea. The way you have it now does work. So do tires with
out inner tubes and no bead. The way you have it now is brake rod is
positioned only on outside edge of piston. A weak or broken brake spring
can bounce pedal and rod can fall off. By fitting rod to bore properly,
it is inserted inside and is much safer. Plus when someone else owns and
then repairs the car they wont be stuck with a short rod. Possible
suggestions that can be lethal should be deleted. Later Dave the Wave



Dave:

Explain this a bit more. I know that the standard brake rod fits into the piston
by about two inches. Further, the nose of the actuating rod is rounded, to
prevent the rod end from gouging into the piston ID during hard activation.

Are you saying that the suggested replacement master cylinder (the VW
Transporter model?) doesn't have a piston recess of the same depth and ID? If
so, that's a whopper of a danger. (Although I don't think the brake spring would
be the cause; the danger would be where the pedal returns faster than the piston
can follow, like if you pressed hard on the pedal and then let your foot slip
off the pedal, allowing it to "pop" back up.) If that rod ever slips out of the
piston recess, you will stomp for all your worth and get zero braking!

So if the activating rod needs to be shortened too much, or have its OD
dangerously reduced, then using that kind of master cylinder would be too
dangerous to have on the site. The only way I would want that to be on the site
would be if it had a strong warning and explanation of the hazard, along with a
method to fix the hazard (like in this case, you could specify that the piston
be drilled to a depth and ID to accept the standard rod).

Ed
El Cajon
67 Rust Guppy


[Non-text portions of this message have been removed]
 
M

Michael Echemann

Guest
Who made a lethal suggestion? I only suggested that using a stock, better
built master cylinder which was designed for the car was the best option.
This calls for no alteration to the Amphi's brake system at all. I know the
other plan will work and I'm all for saving a few bucks but I just don't see
it on a brake system when the original item is available for a reasonable
price.
Mike


----- Original Message -----
From: "Dave Derer" <dmd@essex1.com>
To: <amphicar-lovers@yahoogroups.com>
Sent: Friday, February 20, 2004 7:27 AM
Subject: [amphicar-lovers] brake rod


> No it is a bad idea. The way you have it now does work. So do tires with
> out inner tubes and no bead. The way you have it now is brake rod is
> positioned only on outside edge of piston. A weak or broken brake spring
> can bounce pedal and rod can fall off. By fitting rod to bore properly,
> it is inserted inside and is much safer. Plus when someone else owns and
> then repairs the car they wont be stuck with a short rod. Possible
> suggestions that can be lethal should be deleted. Later Dave the Wave
>
>
> [Non-text portions of this message have been removed]
>
>
>
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