I have one of the CBS SVA level conversion caps for my willwood master cylinders with integral reservoir.

Question is can you take the test cap off and fill through this?
If you take the whole cap off you get fluid everywhere, and when you put it back in it takes ages for the inside of the sensor to fill and you just displace half the fluid!



James

isnt the res sposed to be transparent for sva? and yes you take the whole cap off to fill it,just let the cap sink under its own weight

There cant be much fluid left in there when the cap is on.

Once upon a time you could get transparent extension reservoirs to screw onto the master cylinder. I would prefer the non integral master cylinder with remote reservoir myself , easier to fill, larger reserve of fluid and reservoir is clearly visible making fluid checks more likely to be carried out.