Prout Hydraulic ram capacity

[oakleyb]

Looking to upgrade autohelm, before i can i need to work out what the steering ram capacity is. Would anyone have this data ?

Thanks

 

[rogerthebodger]

Measure the piston stroke and cylinder diameter then you can work the volume out

Pi DxD / 4 x stroke

 

[oakleyb]

cheers

 

[StefanSG]

Commonly used on Quests SG37 etc is the Seastar Hynautic K19 which has a capacity of 9 Cubic Inches (147 cc) So for 5 revolutions from lock to lock you want a helm pump around 30cc
Please check this before ordering though !

 

[oakleyb]

so one of these would replace the Auto helm 6000 ??

Raymarine Evolution Autopilot EV-150 Hydraulic​

 

[StefanSG]

I'd speak to Raymarine about compatibility, but on paper, yes,
Try and figure out the exact model of ram
Forget what I said about revolutions, youre replacing Autohelm not helm pump, apologies

SSG

 

[rogerthebodger]

Its the size of the pump that is important raymarine have a type 1 smallest a type 3 and type 3 the largest

My autopilot id a SIMRAD but uses a similar type of pump as said speak to Raymarine

 

[oakleyb]

thanks for replies, 1 more question. Can you replace seals etc in ram if i can identify model etc ?

 

[rogerthebodger]

thanks for replies, 1 more question. Can you replace seals etc in ram if i can identify model etc ?

Yes easy trip it done and take the seals to a hydraulic seal supply and they will be able to supply replacement.

I have done it several times with both hydraulic cylinders and outboard tilting hydraulics