From:  "markdoble" <mark@m...> 
Date:  Tue Aug 6, 2002  9:20 am
Subject:  Building Tip: How to put hydraulic fluid into the brake lines the easy way!

 
 

Hi List,

this might be old news to some...but for anyone who has not done 
their brake system here is a great tip!

I have the matco wheels/brakes supplied by mustang aero with the 
remote resevoir on the firewall.

I spent about 2 hours trying to fill my brake lines with the red 
hydraulic fluid. I kept getting air bubbles and everytime i sealed 
the line a few more bubbles about 2" long would appear...it was 
frustrating. The low pressure side of the line would just not stay 
filled. 

Hydraulic fluild was everywhere..i was hot in my 100degree florida 
garage...and not very happy...i knew something must be wrong....so i 
did some research and found out that filling from the bottom works 
the best...?? This sounded a bit weird at first...but hey i'll try 
anything at this point.

So i went to home depot and bought 5ft of 1/4" tubing for $0.70 and 
two oil can squirter for $4.00 each.

I filled each oil squirter can with hydraulic fluid and attached to 
the bleeder line on each brake using the 1/4" tubing. The seal 
wasn't perfect but it didn't matter.

I then pumped up the fluid on each brake line to fill the system up 
to the resevoir. I tightned up the bleeder valve on the brake and 
the pedals were rock hard when depressing and guess what...NO air 
bubbles!!! I didn't have to pump the pedals or do anything 
else...just close off the valve.

Took all of 10min once i knew what i was doing....


cheers,

Mark
N515MD
...just waiting on my cowling and i'm done!
-Test flight to be done at VDF probably around sept 1.