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hydraulic lines- adding a t connection

Old 03-25-2020, 05:49 AM
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MC
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Default hydraulic lines- adding a t connection

Next project on the boat is installing the autopilot. I have everything mounted and it's ready to be powered up. Now have to plan out the hydraulic steering layout.

Boat has Seastar Pro Power Assist Steering. So I believe I need to t-off between the helm and the power steering pump, not between the power steering pump and the ram cylinders.

Plan is to cut into the current hydraulic line (maybe even remove a few feet of it as it is much longer than it needs to be) install the T and plumb up the autopilot pump. I have access to shark bite connectors and wondering if they will work for this application? Otherwise it's off to the hydraulic shop to see if they will put in a T for me- which may mean they will require me to buy new hoses, which I really do not want that extra expense.
Old 03-25-2020, 07:26 AM
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Originally Posted by MC View Post
Next project on the boat is installing the autopilot. I have everything mounted and it's ready to be powered up. Now have to plan out the hydraulic steering layout.

Boat has Seastar Pro Power Assist Steering. So I believe I need to t-off between the helm and the power steering pump, not between the power steering pump and the ram cylinders.

Plan is to cut into the current hydraulic line (maybe even remove a few feet of it as it is much longer than it needs to be) install the T and plumb up the autopilot pump. I have access to shark bite connectors and wondering if they will work for this application? Otherwise it's off to the hydraulic shop to see if they will put in a T for me- which may mean they will require me to buy new hoses, which I really do not want that extra expense.
Please do not attempt to do this with " shark bite connectors ", the Seastar helm's pressure relief valve is very near a thousand pounds. Your system could be plumbed with several different types of tubing, some of them are not suitable for do-it-yourself alterations, some can make use of common compression fittings and some will require fittings only available from a hydraulic shop... Proceed carefully, steering is no place for anything but the best workmanship.
Gerald
Old 03-25-2020, 07:29 AM
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Originally Posted by MC View Post
I believe I need to t-off between the helm and the power steering pump, not between the power steering pump and the ram cylinders..
The AP instructions I have seen (Garmin)
state to install the Tee for the AP pump port & starboard hoses
"between the power assist module and the steering cylinder."

but the AP pump return line Tee
"to the return line between the power assist module and the helm"

in both cases,
if you install the Tee at the power assist unit -
- threaded directly it -
you won't have to change the existing hoses
("or need hoses with Tees in them")

You just need to source the appropriate Tee

Old 03-25-2020, 02:26 PM
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I’m not sure if the power assist will make a difference but I used this kit to bleed mine this weekend. It was my first time installing the lines for an AP and it was surprisingly easy. I also ordered custom length hoses with the ends already attached. The field connection ends are shit, have seen a couple go bad and leak.

https://outboardst.com/product/bubbl...t-ost-pbb-001/

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