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Old 07-24-2010, 10:00 PM   #1
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Default Can you splice into Seastar steering hydraulic hose?

I just bought the Garmin Autopilot and am in the process of installing it. I bought the Seastar Autopilot fitting kit and hose. It has the compression fittings that are special for Seastar. I have read you cannot cut into the factory Trophy boat hoses that are Seastar brand. Will they leak or should I pull them off of the steering helm and screw the factory fittings into a brass fitting? It looks like the Tees that come with the kit are made to splice into the line. I just don't want to make a serious mistake and have to pull the factory hoses out and replace them if they cannot be spliced. Thanks in advance.
Ron
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Old 07-24-2010, 10:03 PM   #2
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Contact Seastar (Teleflex), they will be the definitive answer ...
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Old 07-24-2010, 10:14 PM   #3
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It is not recommended. What you are supposed to do is to buy short hoses. It takes three of them about 3 feet long to do the job and you can find the short ones on eBay.
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Old 07-25-2010, 06:32 AM   #4
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Parker makes the hose material for Teleflex and they also make field assembled (also called reusable) hose end fittings. I'm not sure what fittings you have with the Garmin pilot but I'm pretty sure Garmin knows what they need to interface with Teleflex equipment.

Before Teleflex bought out Hynautic, Hynautic used to sell the feild assembled fittings. Teleflex recommends factory assembled hoses to limit their liability (and they probably make a tidy sum from the factory hoses too). I've installed numerous feild assembled fittings over the years and never had a problem with leaks.
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Old 07-25-2010, 06:40 AM   #5
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You can take it to a hose specialty shop and they can make you anything you want, properly and safely.

An example is Moreland Hose. http://www.morelandhose.com/
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Old 07-25-2010, 06:46 AM   #6
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Seastar sells "add a station" kits that include both the fittings and the hose you can cut to size to run to your AP. The kits include the compression fitting you need as well as the tees to tap in right behind your hydraulic helm.

I recently installed my Raymarine autopilot to my Seastar helm using this kit, and it worked just great. Hope this helps and good luck!

http://ww2.seastarsteering.com/SHARE...t.htm#Outboard
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Old 07-25-2010, 06:46 AM   #7
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There are typically 3 different types of hoses used for sea-star:

- SeaStar pre-made (factory built) hydraulic hoses - outboards usually
- 3/8 nylon nylon tubing - compression fittings - (field built)
- 3/8 copper tubing - compression fittings (field built) - high pressure systems or larger boats with 100+ foot runs.

If you have 3/8 nylon tubing you can just cut it, put in a Tee and using some seastar 3/8 nylon tubing and compression fittings and you are fine.

Same with copper but I don't think you have this on your boat.

If you have the pre-made, you will can make up some 3/8 nylon tubing with the Tees and will need to use male/male adapters to connect your field built tubing connections to the premade.

It's just simple hydraulics and as long as you have everything plumbed correctly and without leaks, using approved seastar parts (does not actually need to be seastar parts but same specs)
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Old 07-25-2010, 10:33 AM   #8
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I regularly make "factory built" hoses with resuable fittings in every autopilot system I install, the compression fittings/nylon tubes are usless. the "factory" hose is usually either 5/16" or 3/8 and sometimes use dash numbers to indentify inside diameter. the dash numbers are in 1/16th frations so a -6 hose is 6/16ths...or 3/8ths -5 is 5/16ths.
I have regulary cut into existing hoses and made new hoses for autopilot systems and is quite easy to do.
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Old 07-25-2010, 02:25 PM   #9
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Thanks everyone for the advise. I tore into the ones on the boat and they were not the same nylon lines that I bought. After seeing how tough it was to bend them, I took your advise and went and bought premade ones. Those other ones with the stiff hose looked like trouble to me and the factory lines I would not have cut after a good look at them.

I just added more premade hose and I expect no troubles this way. They sure are proud of them-$123.00 per pair. I bought piece of mind.
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Old 07-25-2010, 02:58 PM   #10
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Quote:
Originally Posted by FishnutNW View Post
Thanks everyone for the advise. I tore into the ones on the boat and they were not the same nylon lines that I bought. After seeing how tough it was to bend them, I took your advise and went and bought premade ones. Those other ones with the stiff hose looked like trouble to me and the factory lines I would not have cut after a good look at them.

I just added more premade hose and I expect no troubles this way. They sure are proud of them-$123.00 per pair. I bought piece of mind.
Yes, they are VERY proud of them...

At Proline, we buy the hose in bulk from Parker, as well as the fittings and the Pneumatic crimping machine. Saves us a bunch...
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