power steering contol valve leaking fluid

[zellerj]

I have a twin 5.7 L 27 foot Tiara serial numbers: Port: B784582 Starboard: B784568..I noticed hard steering the other day but it was manageable. After docking for a few hours, the steering returned to normal. I attributed this behavior to stiff grease in the ram tube because of the cooler temperatures.. Today I took a closer look at the control valve and it is leaking between the two halves where the gasket is. I believe these two halves are called the control valve housing and the annulus spacer. I think the gasket is compromised. According to Mercuriser service manual 14, I have the older style control valve.

Are there rebuild kits available? If not what parts do I need to replace the unit.

Also while I am at it. Is there a procedure for cleaning and relube the rams to improve stiff steering?

Best,
Jim

 

[alldodge]

I'm finding the kit is no longer available 57969A12, but there are some parts available and maybe some new old stock

https://www.mercruiserparts.com/bam/...30858/1017/160

If the stiffness is from lack of fluid or pressure then there is no direct fix. Disconnect steering ram from drive and see how easy it can be moved by hand. You can lube the cable and parts, but most cases this doesn't help but does keep corrosion down

 

[zellerj]

Thanks AllDodge. Upon closer examination it is not the gasket that is leaking, but the rubber boot that goes over the ball stud. I guess I will have to live with it, and make sure that it is greased from the grease zerk often and clean up what leaks out. I will remove the steering cable and see if the stiffness is from the friction between the cable end and the guide tube.