when I drain my brake system and get rid of the dot 3 can I refill
it with silicon brake fluid with out causing problems or do I have to change master cylinder ,wheel cylinders and lines to start with a fresh clean system
txs Ron:

 

If all that stuff is in good shape, take all the cylinders off and clean 'em thorougly (ethanol and air). Blow out the lines with air and rinse some ethanol (rubbing alcohol) through 'em and blow them dry and repeat until clean. (putting a cloth over the end of the line should show you if dirt is coming out). Paint the master and slave cylinders if you want: DOT5 won't hurt paint.

I've read that tests showed that no harm was found from mixing fluids, which is something to keep in mind, if you run low in Spuzzum or Zeballos and the only brake fluid around is DOT3. But, you won't get all the benefits of DOT5 if you don't get rid of the DOT3 first.

If cylinders and lines are pitted or corroded, then it's a good idea to replace them. I can tell you that it is not much fun when a line springs a leak, because it generally happens at the precise moment when you REALLY want the truck to stop RIGHT NOW. Rear wheel cylinders are dirt cheap ($15 each, Canadian, for 48-72 F100).

 

thanks Angus sounds like i need to redo the system about what
i thought i would have to get around to