projects & solutions mini guide - underwater gear part two

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Projects & Solutions SHERIDAN MARINE By River, By Road, By Mail... Order the Solutions 01491 652 085 Underwater Gear Propeller Shafts Check the propeller shaft is running true when the boat is out of the water. A simple visual check for signs of wear, particularly near the P-bracket where a ‘ring’ of wear can appear and any bend, which can be caused by hitting the bottom, can help to highlight any bad oscillation. Rudders Rudder stocks can split at the fork where the blade joins and should be examined. Sometimes the rivets loosen and the blades need to be tightened. Part Two Rudders Propeller Shafts If there appears to be more serious damage or electrolysis has set in then a new rudder is usually the only option. Look for signs of ‘pinkness’ and pitting in the blade close to the stock. Look for bent blades, electrolysis around the stock (if metals have been mixed) and snapped rudder stocks.

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A series of FREE Mini Guides for boating projects that run through the basic steps for the practical boat owner. This Mini Guide concentrates on what to look for when inspecting, repairing or renewing the Underwater Gear including the propeller shaft, rudder and anode condition.

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Page 1: Projects & Solutions Mini Guide - Underwater Gear Part Two

Projects &

Solutions SHERIDAN MARINEBy River, By Road, By Mail...

Order the Solutions

01491 652 085

Underwater GearPropeller ShaftsCheck the propeller shaft is running true when the boat is out of the water. A simple visual check for signs of wear, particularly near the P-bracket where a ‘ring’ of wear can appear and any bend, which can be caused by hitting the bottom, can help to highlight any bad oscillation.

RuddersRudder stocks can split at the fork where the blade joins and should be examined. Sometimes the rivets loosen and the blades need to be tightened.

Part Two

Rudders

Propeller Shafts

If there appears to be more serious damage or electrolysis has set in then a new rudder is usually the only option. Look for signs of ‘pinkness’ and pitting in the blade close to the stock.

Look for bent blades, electrolysis around the stock (if metals have been mixed) and snapped rudder stocks.

Page 2: Projects & Solutions Mini Guide - Underwater Gear Part Two

Projects &

Solutions SHERIDAN MARINEBy River, By Road, By Mail...

Order the Solutions

01491 652 085

Underwater Gear

AnodesIf you have a mix of metals underwater then a right anode helps guard against electrolysis. Replace anodes if eroded or damaged. Remember not to antifoul over anodes as this will prevent them working as they should.

AccessoriesAdditional underwater gear equipment & accessories.

Gaco Seal

Rudder Greaser

Gland Packing

‘P’ BracketsCheck the bolts are holding firm and that there is no sign that the P-bracket has been knocked and bent at all.

Part Two

‘P’ Bracket

© Sheridan Marine 2015. All rights reserved. E&OE. This is a project guidance sheet and not a ‘How-to’ fact book. It is presumed that all work is carried out safely using the correct tools and methods. Disable the engine so that there is no chance it starts while you work on the gear.

A more regular maintenance check and replacement of the cutlass bearing is by far the most common problem with P-bracket enquires.

Cutlass Bearings

Anodes