Reply
 
Thread Tools Search this Thread
 
Old 01 June 2009, 13:59   #1
Member
 
Country: UK - England
Town: Fareham
Make: Ribcraft
Length: 6m +
Engine: Suzuki 175Hp
Join Date: Oct 2006
Posts: 106
Spongey Steering

Hi - having some problems with the hydraulic steering on my RIB.

Every now and again I had steering fluid leaking out of the seal behind the steering wheel, at first I though this was the rubber washer so replaced that but it still leaked (although a little less.) I had the steering checked over when the engine was in for a service but nothing came up. Though a month or so after I'm getting leakage.

So the question is......any idea what could be causing this and/or how can it be fixed??


Matt
__________________

__________________
Mbryant is offline   Reply With Quote
Old 01 June 2009, 15:25   #2
Member
 
Country: UK - England
Town: Newcastle Staffs
Boat name: blue it
Make: ribcraft 7.5
Length: 7m +
Engine: suzuki df225
Join Date: Dec 2005
Posts: 488
Send a message via AIM to Top banana
im having exactly the same problem. went to the boat and there was steering fluid running down the helm. put it down to the hot weather expanding the oil, or air in the system.
so i will be bleeding the system through this week. last time out i did notice the steering was stiff to port.
__________________

__________________
Top banana
Top banana is offline   Reply With Quote
Old 01 June 2009, 16:25   #3
Member
 
Bigmuz7's Avatar
 
Country: UK - Scotland
Town: Glasgow
Boat name: stramash
Make: Tornado
Length: 5m +
Engine: Etec 90
Join Date: Feb 2006
Posts: 5,068
Last leaky one I had, it was coming out of the steering shaft going into the box, but it didnt make the system 'spongy', in hydraulics .. thats a sign of air in the system, or the wrong type of oil (less likely).. there is a bleed proceedure to expell all the air, most open circuit systems do it automatically, but I have learned that outboard systems need to be purged of air to work properly . It involves cycling the steering fully one way and draining the excess, then back the other and repeating the process, then topping up the reservoir.

If that doesnt work then either the helm pump isnt generating enough pressure or your steering ram is allowing oil to bypass in the steering cylinder meaning the actuating pump(helm) needs more revolutions to effect the same amount of steerage
__________________
Bigmuz7 is offline   Reply With Quote
Old 01 June 2009, 16:37   #4
Member
 
Country: UK - England
Town: Fareham
Make: Ribcraft
Length: 6m +
Engine: Suzuki 175Hp
Join Date: Oct 2006
Posts: 106
Cheers Bigmuz, I'll try that out and hopfully it will solve the problem!!!
__________________
Mbryant is offline   Reply With Quote
Old 01 June 2009, 16:42   #5
RJH
Member
 
Country: UK - England
Town: Southampton
Length: no boat
Join Date: Jan 2005
Posts: 169
Quote:
Originally Posted by Top banana View Post
im having exactly the same problem. went to the boat and there was steering fluid running down the helm. put it down to the hot weather expanding the oil, or air in the system.
so i will be bleeding the system through this week. last time out i did notice the steering was stiff to port.
Likewise, am not impressed with the hydraulic steering on my boat. Spotted some minor leakage at the ram end and is being investigated but generally has always been very heavy. Have considered uprating to "power" steering bit am told it can make it too easy and can result in heavy wear on steering bolts conecting to the engine. How does one know if the hydraulic steering is operating correctly as have nothing to compare to?
__________________
RJH is offline   Reply With Quote
Old 01 June 2009, 16:59   #6
Member
 
Country: UK - England
Town: Fareham
Make: Ribcraft
Length: 6m +
Engine: Suzuki 175Hp
Join Date: Oct 2006
Posts: 106
The symptom I get is very loose steering - sometime 4 or 5 wheel turns from straight to full lock, you guys seem to be suffering from heavier steering though same leakage
__________________
Mbryant is offline   Reply With Quote
Old 01 June 2009, 17:53   #7
Member
 
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
Quote:
Originally Posted by RJH View Post
Likewise, am not impressed with the hydraulic steering on my boat. Spotted some minor leakage at the ram end and is being investigated but generally has always been very heavy. Have considered uprating to "power" steering bit am told it can make it too easy and can result in heavy wear on steering bolts conecting to the engine. How does one know if the hydraulic steering is operating correctly as have nothing to compare to?
How many turns lock to lock is it?

Mine is about 6 turns - makes the steering fairly light but it's like turning a destroyer. You can get pumps which will give you say 4 turns but then it's a bit heavier. I would much rather have heavier but quicker steering.

I wish they would pay more attention to this on fast boats - it really lets the side down. The Alfas I have driven have been 2.2 turns - much more sporty!!!
__________________
codprawn is offline   Reply With Quote
Old 01 June 2009, 17:58   #8
Member
 
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
I have air in my system - about to bleed it. The steering is very "notchy" and jerky - I assume those are the symptoms with most makes.

The bleeding process needs lots of oil on mine - 2.5 litres. Basically you open a valve on the end of the ram - keep adding oil and spin the wheel pretty fast - it's a 3 man job.
__________________
codprawn is offline   Reply With Quote
Old 02 June 2009, 00:44   #9
RIBnet supporter
 
bedajim's Avatar
 
Country: UK - England
Town: Cambs/Northants
Length: no boat
Join Date: May 2006
Posts: 2,499
Quote:
Originally Posted by codprawn View Post
I have air in my system - about to bleed it. The steering is very "notchy" and jerky - I assume those are the symptoms with most makes.

The bleeding process needs lots of oil on mine - 2.5 litres. Basically you open a valve on the end of the ram - keep adding oil and spin the wheel pretty fast - it's a 3 man job.
What make of steering is it ?
__________________
bedajim is offline   Reply With Quote
Old 02 June 2009, 05:18   #10
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,850
[QUOTE=Mbryant;So the question is......any idea what could be causing this and/or how can it be fixed?? Matt [/QUOTE]

It is leaking due to hot weather. Presumably your pump is black which will heat up nicely during the day and the oil then finds the weakest link in the system, in your case the seal behind the wheel,

Solution, never found one, just made sure the resevoir is full each morning. There was a nasty accident on Lough Lomond a couple of years ago caused because no one check the fluid level and the steering failed.

Pete
__________________

__________________
.
Ribnet is best viewed on a computer of some sort
Pete7 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 01:50.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.