Power steering actuator repair.

[HARRY B]

There are problems with 2009 Volvo Penta 4.3 gl engines with power steering actuator leak(s).
I’ve had it rebuilt with new proper o ring & seal kit @ Hydraulic Company.
There are recommendations to use ATF basic fluid going forward, not synthetics etc as they swell seals & not to mix types of fluid previously used.
How do you best flush existing fluid in this marine engine set up as it was synthetic type?
Thank you

 

[Horigan]

I would be leary of changing the fluid from what is stated on the pump. To change it, I would drain all the old fluid by disconnecting the hoses, fill with the new fluid, bleed, drain the fluid again, then fill with the new fluid and bleed.

 

[Lou C]

On my Cobra I had to replace the old actuator with a used unit & I just used regular Dexron II auto trans fluid system since that’s probably what it was filled with when new…