Rear shocks 456

mikeprice1969 · 02-02-2012, 08:02 AM

Hi, before i refit the shcoks on my 456 can anyone tell me.

1, how do you bleed the system
2, Is there anything i need to do while refitting them on the ECU side of things

Thanks

tazandjan · 02-02-2012, 08:40 AM

Mike- There is a bleed valve on the self-leveling valve assembly. Here are the applicable pages from the 456 workshop manual. If you do not have one, you can download it from ferraridatabase.com.

It does not say much about bleeding, but probably open the valve until you get fluid only coming out. The system is pressurized by the accumulators and the shock absorbers themselves, so not sure what else needs to be done to ensure all the air is evacuated. The system shares the reservoir with the power steering, but I am unsure there is any other connection with the hydraulic steering system.

Maybe one of the pros can help.

The ECU should be unaffected, since its primary job is to operate the shock actuators, not the self leveling system.

mikeprice1969 · 02-02-2012, 11:16 AM

Thanks for that Taz, will start and finish tomorrow. will let you know how it goes!!!

02-02-2012, 08:02 AM	#1
mikeprice1969 Join Date: Dec 2009 Ferrari Life Posts: 3	Rear shocks 456 Hi, before i refit the shcoks on my 456 can anyone tell me. 1, how do you bleed the system 2, Is there anything i need to do while refitting them on the ECU side of things Thanks

02-02-2012, 08:40 AM	#2
tazandjan Owner Elite Member Join Date: Aug 2011 Location: Albuquerque, NM Ferrari Life Posts: 3,592 Name: Terry H Phillips	Mike- There is a bleed valve on the self-leveling valve assembly. Here are the applicable pages from the 456 workshop manual. If you do not have one, you can download it from ferraridatabase.com. It does not say much about bleeding, but probably open the valve until you get fluid only coming out. The system is pressurized by the accumulators and the shock absorbers themselves, so not sure what else needs to be done to ensure all the air is evacuated. The system shares the reservoir with the power steering, but I am unsure there is any other connection with the hydraulic steering system. Maybe one of the pros can help. The ECU should be unaffected, since its primary job is to operate the shock actuators, not the self leveling system. Attached Images Taz Terry Phillips Present: 575M 135171 Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125 Every day I look around, and if nobody is shooting at me, it is a pretty good day. Last edited by tazandjan; 02-02-2012 at 08:48 AM.

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02-02-2012, 11:16 AM	#3
mikeprice1969 Join Date: Dec 2009 Ferrari Life Posts: 3	Thanks for that Taz, will start and finish tomorrow. will let you know how it goes!!!