REFLECTOR: DOT 5 Compatability

[Scott Derrick]

What a FUBAR thing to do on the part of the aircraft owner & mechanic.

Scott


Christopher Martin wrote:

> One of our fellow Velocity pilots was conferring with me 10 minutes 
> ago, and mentioned that he had a mechanic replace his DOT 5 with 
> standard, red, hydraulic fluid. I know on the reflector over the last 
> 7 years we have discussed this and it was always regarded as the worst 
> possible thing to do. The two fluids are incompatible and curdle or 
> something as I recall. In his situation, he has the Cleveland brakes 
> and the original Japanese Automotive master cylinders. The mechanic, 
> when installing the new fluid just bled out the DOT 5 by pushing it 
> out with the new fluid.
>  
> Our fellow Velocity pilot, of course, needs to pick someone up this 
> weekend and is considering his options.
>  
> 1. Is the compatibility so critical that the worst case might be the 
> master cylinder will lock up and hence, lock the brakes?
>  
> 2. Is the compatibility so critical that the "O" ring in the master 
> cylinder passes fluid around it and hence, there is no braking?
>  
> 3. Is the compatibility problem an old wives tale and hence, not a 
> problem?
>  
> If anyone has experience with this please enlighten us.
>  
> Christopher Martin
> christophercmartin at earthlink.net <mailto:christophercmartin at earthlink.net>
>  
>  
>
>------------------------------------------------------------------------
>
>_______________________________________________
>To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
>Visit the gallery!  www.tvbf.org/gallery
>user:pw = tvbf:jamaicangoose
>Check new archives: www.tvbf.org/pipermail
>Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>