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Pescador2
Joined: 19 Nov 2016 Posts: 8 City/Region: Duluth
State or Province: MN
C-Dory Year: 2007
C-Dory Model: 255 Tomcat
Vessel Name: Uno Mas
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Posted: Fri Jul 29, 2022 10:32 am Post subject: Tom cat motor alignment problem |
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Motors on 2007 tomcat won’t remained aligned after 5 years of trouble free operation I assume low fluid and added small amount at helm no change.do I need to bleed at steering rams or do I have another problem also notice when towing this season motors do not remain pointed straight forward and steering seems a bit firm. any help appreciated thanks Joe |
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thataway
Joined: 02 Nov 2003 Posts: 20813 City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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Posted: Fri Jul 29, 2022 10:48 am Post subject: |
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How is the fluid level at the helm? How much fluid have you had to replace during the last year?
Bleeding the system is the first step. Check the shaft of the helm pump, and all cylinders for leakage of hydraulic oil. At this age new seals probably are going to be in order.
When towing the boat, the outboards should be locked so that they do not turn. This accomplished by putting clips on each side of the ram. Many different companies make these clips or hard rubber blocks. _________________ Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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Pescador2
Joined: 19 Nov 2016 Posts: 8 City/Region: Duluth
State or Province: MN
C-Dory Year: 2007
C-Dory Model: 255 Tomcat
Vessel Name: Uno Mas
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Posted: Fri Jul 29, 2022 11:38 am Post subject: |
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Fluid level at helm was slightly down fluid added at helm thinking mayb a quarter ounce or so.Have not added any fluid since about 2018 .no signs of leaky seals. even after topping off fluid motors misaligned quickly especially when making tight turns at slow speeds. seem to hold alignment well on long (30 mile) relatively straight runs (only slightly misaligned but noticeable) is it possible I have air trapped near one of the steering rams? Stiff steering normal? Thanks |
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journey on
Joined: 03 Mar 2005 Posts: 3595 City/Region: Valley Centre
State or Province: CA
C-Dory Year: 2005
C-Dory Model: 25 Cruiser
Vessel Name: journey on
Photos: Journey On
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Posted: Fri Jul 29, 2022 1:16 pm Post subject: |
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Journey On has but a single motor. However, when the motor is tilted up and centered, it will gradually tilt to one side or another. To me, this indicates that the hydraulic system has a leak through the drive cylinder or the check valves or somewhere. It's just life.
I solved the problem by using M-Y Wedge centering clips. When installed, the engine stays centered. Just remember to remove the clips before you start motoring.
Boris |
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thataway
Joined: 02 Nov 2003 Posts: 20813 City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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Posted: Fri Jul 29, 2022 4:28 pm Post subject: |
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When adding fluid. go lock to lock several times. But with the Tom Cat, "liquid Tie Bar" and two cylinders, you have to bleed the system to be sure that all air is out.
As I and Borris have both said--keep the motors centered when trailering. The motor turning pushes against the ram seals.
Has the hydraulic fluid ever been changed ? The boat is now about 15 years old. The hydraulic fluid change out interval is 5 years. Are you using the Mll spec hydraulic fluid? Many of us buy it in gallon containers either on the internet or from fixed base operators at airports. |
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gulfcoast john
Joined: 14 Dec 2012 Posts: 989 City/Region: PENSACOLA
State or Province: FL
C-Dory Year: 2010
C-Dory Model: 255 Tomcat
Vessel Name: Cat O' Mine
Photos: CAT O' MINE
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Posted: Fri Jul 29, 2022 4:42 pm Post subject: |
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Joe,
We had similar issues with our 2010/2011 engines. The tech found a tiny leak in one seal, (I never would have found it) replaced both with an updated red version, bled with the shop machine and all is well.
https://askangler.com/sea-star-hydraulic-steering-problems/
The liquid tie bar alignment procedure using the valve works best if you continue to force full right and left turns (while crew turns the valve 90 degrees between each) until there is no play in either direction (not just one full right and left).
‘Hard’ steering’ is hard to measure. Once on plane, I count responsive easy casual steering with one hand on the wheel as normal. Don’t tolerate anything less.
Add ‘engines get out of liquid tie bar alignment too often’ to the article symptoms of hard or spongy steering or fluid loss means you got a leak (even if you can’t find it) or you got air in the system (even if you can’t get it out) or both.
Get the new seals and a pro fix.
Good luck!
John _________________ John and Eileen Highsmith
2010 Tom Cat 255, Cat O' Mine
Yamaha F150, LXF150 |
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Pacificcoast101
Joined: 29 Sep 2007 Posts: 717 City/Region: Torrance
State or Province: CA
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
Vessel Name: No Pressure
Photos: No Pressure
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Pacificcoast101
Joined: 29 Sep 2007 Posts: 717 City/Region: Torrance
State or Province: CA
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
Vessel Name: No Pressure
Photos: No Pressure
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Pescador2
Joined: 19 Nov 2016 Posts: 8 City/Region: Duluth
State or Province: MN
C-Dory Year: 2007
C-Dory Model: 255 Tomcat
Vessel Name: Uno Mas
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Posted: Sun Jul 31, 2022 1:15 pm Post subject: |
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Thanks to all for your info and ideas…working on it tomorrow so we’ll see. Joe |
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