Hi I am trying to flush and bleed my hydraulic top fluid using the steps in this sticky: Procedure to cure a 355 Spider roof that does not close properly due to old fluid | FerrariChat I am stuck on step 18: I cannot pull the RH piston manually past 1.5-2"... The emergency switch moves both primary rams to their full open and closed position, but once I try to do step 18 manually (pull RH ram open with LH ram with open bleed valve) I am unable to get it out past 2 inches or so... only a trickle of fluid (very thick) comes out the bleed valve... Has anyone had any luck with this step when the fluid is soo thick it wont allow the piston to be manually pulled out (related question: the LH piston also comes out about 2inches when I pull the RH piston manually - is this supposed to happen or should the LH stay fully retracted during the manual bleed step)??? the
Remember that extending the RH piston forces fluid into the LH piston.... unless the fluid can find another path. See the mauve-coloured lines for normal operation. Image Unavailable, Please Login I haven't done a flush on my car, so I'm not sure what happens. Is just the "shutoff valve" opened? I'm not sure what (H), the discharge valve, is for. I'm not sure how the two-way shuttle valve is supposed to work, either.
Any idea what would happen if I used the emergency switch with the bleed valve open - to power flush out fluid ?
Did you do step 17? I assume if you do this, the LH ram won't extend when you pull the RH ram. I assume (E) in the diagram is the bleed nipple.
Yea, the bleed nipple is open - a little bit of the gummy fluid comes out so it’s definitely open - but it’s possible the fluid is so thick it’s not flowing out …
Perhaps try heating the rams and see if that helps ease the fluid. Sent from my iPhone using FerrariChat
I actually removed the bleed nipple and was able to get the really hard stuff out … then screwed the bleed nipple on and did the flush/bleed procedure another 3 times to get most of the gummy fluid out … the rams (both main and secondary) now work perfectly in union when going up / down …
