[BT 1966 CONV.]

Fluid In conv. top motor is low,and lines are full of air.I have been told by parts stores that it could be either brake or hydrolic fluid.Would any one know for sure which one and how much to add? Thanks BT1966CONV

[BT 1966 CONV.]

Fluid In conv. top motor is low,and lines are full of air.I have been told by parts stores that it could be either brake or hydrolic fluid.Would any one know for sure which one and how much to add? Thanks BT1966CONV

[Glenn]

I use hydraulic jack oil in '65 and '70. Its clear, and if it leaks doesn't leave a big mess.

[Andre]

On my 66 Bonnie conv that was low on fluid, I did not purge the system of the old fluid. I just added ATF. It worked fine, and still does 3 years later. It also does not have the corrosive effect of brake fluid, and that is good, because I spilt my fair share of it.

[Kurt Zimmerman]

Conv.-
To determine what you have, drain (or siphon) some out into a glass. Put some water in and see if it mixes. If it mixes, you have brake fluid. If it doesn't, you have hydralic fluid. (either trans fluid, jack oil, whatever.) Most original applications through 67 were brake fluid, but you can never tell what has been drained and replaced over the years. Always better to find out, since one doesn't mix with the other.

As far as how much to put in, you'll want to run the top up and down a few times, then run the motor several more seconds after it's down to make sure you get the air out of the system. Then with the top down, fill the reservoir within 1/4" of the bottom of the plug.
Kurt

[ January 10, 2002: Message edited by: Kurt Zimmerman ]</p>

[BWrobel]

My '67 must have had brake fluid in it. It was not working when I got it. I took it all apart cleaned it up(it was a goopy mess) and filled it with ATF. So far, five years, I haven't had any problems.

Bill