Location, Location, Location

Maintenance Q & A — December 2003
By Capt. Ken Kreisler

Location, Location, Location
Proper placement of shaft zincs, troubleshooting a sluggish windlass, engine-belt maintenance, and more.
 More of this Feature
• Shaft Zinc Placement, and more
• Topside Paint Job, and more
• PMY Tries... Kord Kap

 Related Resources
• Maintenance Q&A Index

What is the proper placement for the sacrificial zinc on the prop shaft? P.N., via e-mail
As shown in the accompanying diagram, the two-piece zinc shaft collar should be positioned as close to the shaft support strut as possible. Make sure not to paint either the zinc or the part of the shaft that it will be fitted to. Doing so will compromise its ability to conduct current and to protect your running gear.

When changing shaft zincs, be sure to scrape any dirt or debris off the shaft and sand down the area to bare metal. In addition, make sure the zinc fits snugly to the shaft. Give it a couple of twists with your hand. If there’s any give, tighten it down until there’s no movement.

I’ve been noticing that my windlass is operating slowly. Any suggestions as to what might be wrong? J.L., via e-mail
Possible problems include low battery voltage, a faulty motor connection—usually the hot lead—or a loose battery-terminal connection. Also, if you’ve repeatedly overloaded the motor, it may be damaged. Check these first before calling the windlass manufacturer.

What maintenance tips do you recommend for engine belts? J.G., via e-mail
Regularly inspect the belt for nicks, cuts, or signs of shredding and replace. Also regularly check tension by pushing down on the belt halfway between the pulleys. If the give exceeds one-half inch, change it. Replace the belt with the same one as recommended by your engine manufacturer and tighten to spec. A belt that is too loose will slip, and one that is too tight can overload the bearings in the driven component.

My tender’s 60-hp two-stroke outboard loses power and hesitates on acceleration. What should I look for? P.F., via e-mail
The most likely causes are a restricted fuel supply and air leaking into the fuel supply, both of which could produce a lean air-fuel mixture. Clean your fuel filter and examine your fuel lines for kinks, damage, and restrictions. Examine all connections and hoses between the fuel tank and the fuel pump. If they check out, you may have a restriction in a carburetor jet.

Next page > Topside Paint Job, and more > Page 1, 2, 3

This article originally appeared in the November 2003 issue of Power & Motoryacht magazine.

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