Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-09-2019, 11:35 AM   #1
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
Fixing a leaking 70's era Capilano 250V Helm steering station

Both helm pumps on my Uniflite were weeping hydraulic fluid when I purchased it. After researching, the Teleflex Capilano 250V was discontinued in 1987 and Teleflex was aquired by SeaStar at some point. The new helm station was introduced as the 1250V in that time frame.

I emailed Seastar and asked about parts for the pumps. I was told there is a seal kit for the 1250V that would have the proper seals to reseal the pump, so I ordered it up. The kit includes a number of o-rings, a paper gasket and a plastic faceplate for the front shaft seal. To sum up the product, the kit didn't fit. Details to follow.

The 250V in it's native environment:



The seal kit provided by Sea Star



The 250V does not have a shuttle valve in it. This is a separate unit on the older systems that is in a unit called a 'Uniflow' valve which is located near the steering ram. It does not have a removable back portion as shown in the diagram for the 1250V, and also does not have the same type of check ball valves on the outputs.
sbman is online now   Reply With Quote
Old 05-09-2019, 11:39 AM   #2
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
After removing the unit from the boat, the first step in disassembling it is to isolate the shaft/pump and it's internal springs. To do this, I used a 3.5" long piece of black pipe and a stack of 3/4" washers. Put this on in place of the steering wheel and tighten the nut down finger tight. Now remove the four bolts on the front cover and gently pry the cover off. It has a good amount of resistance due to the o-ring that seals it. Once you get it loose, the entire pump shaft lifts free of the housing with the front cover still in place.

sbman is online now   Reply With Quote
Old 05-09-2019, 11:41 AM   #3
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
Next up is the remove the key from the shaft so the front cover can be pulled off. If it gives you trouble, clamp it in your vice really tightly and then you can rock the shaft off the key.

sbman is online now   Reply With Quote
Old 05-09-2019, 11:44 AM   #4
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
A woodworkers vice helps to hold the body while removing the fittings on the outputs. I clamped it up here and used wrenches to pull off the bronze output fittings so that I could clean the output check valve assemblies. At first I also thought there were o-rings in here to replace, but there are not on the older units.

sbman is online now   Reply With Quote
Old 05-09-2019, 11:46 AM   #5
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
Once the keyway is out, it's easy to disassemble the rest of the pump by just removing the parts by hand. I laid them out in the locations they came from to keep track of the assembly.

sbman is online now   Reply With Quote
Old 05-09-2019, 12:19 PM   #6
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
The adjuster on the front cover allows adjustment of the 'boost' of the system and changes the number of turns lock to lock. This adjuster is a common leak point. It has an o-ring installed on the shaft that needs to be replaced. To remove the adjuster, you have to drive out the roll pin on the shaft and then screw the shaft INTO the front cover, and it comes out the back.

I used a roll pin punch to remove it. This type of punch has a centering pin on it that keeps the punch centered on the pin. Setting it up against the vice jaws partially opened and gently driving it out was farily easy with this tool.

After changing the o-ring on the adjuster, screw it back in and drive the roll pin back in place. I used a roll pin starter driver. These are commonly sold as 'gun' tools.

sbman is online now   Reply With Quote
Old 05-09-2019, 12:30 PM   #7
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
There are only three o-rings to change. I found that the o-ring provided by sea star for the front cover was not the correct o-ring. They provided a -152 o-ring which has an outside diameter of 3.443". However, the opening in the body of the pump is exactly 3.500". The provided o-ring didn't seal at all. The one I removed was obviously a different o-ring.

I decided to return the sea star kit since the primary o-ring wasn't the right size. I ordered the three o-rings I needed from McMaster carr.

Front cover o-ring : https://www.mcmaster.com/9452K165 (-236, Buna-N Dur 70, 3.512" O.D.)
Steering Shaft o-ring : https://www.mcmaster.com/9452K29 (-210, Buna-N Dur 70)
Adjuster o-ring: https://www.mcmaster.com/9452K18 (-010, Buna-N Dur 70)

The upside of going this route was that two helm kits from sea star are $100. I'd expect to get the right parts in it, especially for the price. From McMaster, the three o-rings I needed were $22.51 plus shipping. This is enough o-rings to do 50 helm stations, and is the minimum quantity.

I did call sea star and the tech I spoke to had no idea why the o-ring wasn't the correct one. It was definetly the o-ring specified in their parts list, but that doesn't fit my pump. I think that the early pumps had a larger diameter bore than the later pumps, but I have no idea when that change might have occured, and neither did the tech.
sbman is online now   Reply With Quote
Old 05-09-2019, 12:33 PM   #8
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
To re-assemble, I cleaned all of the parts in my parts washer and put them back the way I found them, using fresh Dexron III on each of the parts. I put the iron pipe back and washers back on and put on the retaining nut for the steering wheel while holding down the spring pressure from the individual plungers that do the pumping. I clamped it down in my vice and verified the alignment of the plungers and the 'cam' that the plungers ride on. It took a little bit of fiddling with it to get them all lined up properly. Make sure the cam is touching the adjuster on the front cover and that you have a good angle to the cam before you put it back into the housing.

sbman is online now   Reply With Quote
Old 05-09-2019, 12:37 PM   #9
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
I lubed the front cover o-ring with syl-glide.



Insert the entire shaft/front cover assembly into the housing and rotate/slide the o-ring back into place. It's a tight fit, but you want to be careful not to pinch the o-ring. You'll feel it drop down into place after you work with it for a bit and then you can install the four bolts that hold the front cover on. At this point, the helm has all fresh seals and is ready to go back into the boat!

Two helm stations completed:

sbman is online now   Reply With Quote
Old 05-09-2019, 01:13 PM   #10
Guru
 
Aquabelle's Avatar
 
City: sydney
Vessel Name: Aquabelle
Vessel Model: Ocean Alexander Flushdeck
Join Date: Jun 2012
Posts: 930
Absolutely fantastic photo write-up of a job many TF members will face. Even those lacking the skills or courage to take this on themselves could use the write-up to brief a local hydraulics shop. Moderators pls consider anointing this as a Sticky.

I'd really liked to hear how you go about re commissioning, bleeding etc.

And thanks very much for all the time taken over and above the job itself to help everyone else.
Aquabelle is offline   Reply With Quote
Old 05-09-2019, 01:19 PM   #11
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
This was a very common steering system on many older trawlers and semi displacement boats in the 35+ foot range. I'll cover the procedures for re-commission after I get them installed in the boat.
sbman is online now   Reply With Quote
Old 01-13-2020, 01:20 PM   #12
Veteran Member
 
Voyager3's Avatar
 
City: Chesapeake
Vessel Name: Voyager 3
Vessel Model: Kadey Krogen Manatee
Join Date: Aug 2019
Posts: 58
Wow nice job on the rebuild!! I just rebuilt my cylinder and need to bleed it. Any suggestions?? I found what looks like a fill fitting directly on top. Also one on the front of the unit that I really can’t get to. Let me know if you figured out how to fill it. Thanks, Tom.
Voyager3 is offline   Reply With Quote
Old 01-13-2020, 02:17 PM   #13
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
@Voyager3 PM me and I can send you the instructions for bleeding the older system that uses the Uniflow valve. If you have a newer system without a uniflow valve, those instructions are available at:

http://www.seastarsolutions.com/wp-c....L-165025L.pdf
sbman is online now   Reply With Quote
Old 01-14-2020, 01:00 AM   #14
Guru
 
Arthurc's Avatar
 
City: Seattle
Vessel Name: Sea Bear
Vessel Model: Kadey-Krogen 54
Join Date: Sep 2016
Posts: 600
really great job on something I am certainly not willing to tackle, I'm impressed
__________________
Kadey-Krogen 54
Arthurc is offline   Reply With Quote
Old 04-23-2020, 01:34 AM   #15
Veteran Member
 
Patrick4002's Avatar
 
City: oostende
Vessel Name: Lady Penelope
Vessel Model: Trader 54 sunliner
Join Date: Nov 2019
Posts: 38
Hello,

I have on both pumps a leaking on the adjustment shaft.
I live in Belgeum Europ and it is hard to find the write o-rings

If you still have o-ring on spare, can i purchace 4 of each from you ?

Best regards,
Patrick

pcuypers@jhz2.be
Patrick4002 is offline   Reply With Quote
Old 04-23-2020, 08:48 AM   #16
Guru
 
HiDHo's Avatar
 
City: Beverly Hills
Join Date: Feb 2012
Posts: 1,370
Thanks Mr s man, I just copied your great photos and information on your repair, I made it into an album on my Ipad. KNock on wood my Capilano is not leaking but on a thirty year old boat it’s great to have the information if and when I would need it.
Mine dosen’t use Dextron, I use hydralic jack fluid which resembles the clear fluid in mine.
HiDHo is offline   Reply With Quote
Old 04-23-2020, 08:05 PM   #17
Guru
 
Keysdisease's Avatar
 
City: South Florida
Join Date: Sep 2014
Posts: 895
AWESOME Tutorial, nicely done!!
Keysdisease is offline   Reply With Quote
Old 06-01-2020, 01:59 PM   #18
Guru
 
City: San Diego, CA
Vessel Name: Second Chance
Vessel Model: 42' Uniflite Double Cabin
Join Date: Jul 2017
Posts: 662
Quote:
Originally Posted by HiDHo View Post
Thanks Mr s man, I just copied your great photos and information on your repair, I made it into an album on my Ipad. KNock on wood my Capilano is not leaking but on a thirty year old boat itís great to have the information if and when I would need it.
Mine dosenít use Dextron, I use hydralic jack fluid which resembles the clear fluid in mine.
The manual for the Capilano system specifies Dexron. Hydraulic Jack oil will certainly work, but Dexron is going to be better at dealing with any contamination of the system because it includes detergents that help keep particles suspended. If it's not leaking, I wouldn't mess with it!

Quote:
Originally Posted by Keysdisease View Post
AWESOME Tutorial, nicely done!!
Thank you! I just commissioned the system a few days ago, I am in the final stages of my refit and needed the rudders to be operational. I took an old oil bottle (I had a lot of them after filling up my Detroit 671 with 7.5 gallons of oil) and drilled the cap. I used plastic epoxy to mount a plastic hose barb in the lid, put it back on the bottle, cut the bottom off the bottle to use as a funnel, wiped it out and hooked up a hose to the fill/vent port of the upper helm and supported it by zip-tie to a heavier item. I then poured Dexron in the bottle and let it trickle and gurgle for a couple of hours as the fluid made its way into the system, topping it off occasionally.

Once the gurgling stopped, I opened the bleed screws on the uniflow valve 2 turns as specified in the manual and rotated the helm each direction for quite a long time, pausing when I heard air flow into the helm so that it could vent through the vent/fill line, I could see the air coming out of the system. I did this 50-60 turns in each direction and then the same at the lower helm.

Once this was done, I closed the bleed screws and the system operated normally with no leaks. Very pleased with the result.

sbman is online now   Reply With Quote
Old 08-16-2020, 09:48 PM   #19
Veteran Member
 
City: BREMERTON
Vessel Name: Dream Weaver
Vessel Model: Ocean Alexander/Pilot House
Join Date: Feb 2013
Posts: 41
I found your description of disassembly very thorough and a bit intimidating. So I opted to take the chicken way out and take it to my local hydraulic shop. Got it back and went to install it. Oops, the front cover was 180 out. So I thought I'll just give it a try and just rotate it the 180. Got it back together, connected to plumbing and filled with fluid. Would not prime. And it made strange mechanical noises. So I removed ( again spilling copious quantities of fluid) and took back to the shop. They couldn't get to it until the next week, but no problem, I have an old boat and there are plenty of other projects to do. Picked up unit again and installed and OOPS, same problem of not priming and the mechanical noise when rotating. More mess.

So I called up Seatech marine, and they were mildly helpful. They did point me to the authorized repair facility in Bellingham. Called them and was eventually passed along to the guy that does the work on these old pumps. He suggested that I pull the front cover off again, and rotate the plate with the two black lobes 180 degrees. So back out it comes (more mess) and I do the needful rotation. Put it back in and put in the fluid. Backed out the screws on the unavalve the recommended 2 turns. Rotated the helm 20 turns in each direction, tightened the unavalve screws back up and hallelujah it works again..

If I hadn't relied on this wonderful posting and just went to my ships library for service info, I could have saved myself lots of problems. My leak was just around the helm shaft, and all I really needed to do was pop out the old o-ring and put in a new one. Lesson learned. No regrets, as I'm a pretty patient guy that now knows the hydraulic steering system on the boat much better then before.

I've messed up and broken a lot of stuff in my 73 years. I'm getting better at not completely ruining stuff, but things don't always go smoothly the first time. Hope my missteps are helpful to the next person.

jp
DW1979OA is offline   Reply With Quote
Old 03-11-2021, 04:16 PM   #20
Guru
 
Alemao's Avatar
 
City: Fort Myers - FL
Vessel Name: ORIGINAL
Vessel Model: Hi Star 55
Join Date: Jul 2011
Posts: 664
Quote:
Originally Posted by Patrick4002 View Post
Hello,

I have on both pumps a leaking on the adjustment shaft.
I live in Belgeum Europ and it is hard to find the write o-rings

If you still have o-ring on spare, can i purchace 4 of each from you ?

Best regards,
Patrick

pcuypers@jhz2.be


I need too, 2 of them. To donít have to buy 100 of each one
Alemao is offline   Reply With Quote
Reply

Tags
250v, capilano, seastar, teleflex

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 02:42 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012