Repair and Maintenance of a Drascombe Lugger

Checking the Outboard Mounting Board Bolts

The teak outboard motor mounting board is secured by two galvanised ring bolts at the top and two hexagonal headed bolts at the bottom. On Sospiri the bottom two bolts had been replaced by stainless steel ones. The top ring bolts looked OK but I thought it might be a good idea to dismantle them to check...

Outboard mounting board with ring bolts These ring bolts look OK...

Inspection of the outboard motor mounting board seemed to indicate that the galvanised ring bolts were in good condition with minimal loss of the zinc coating ...

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Galvanised ring bolts badly corroded The bolts removed tell a different story

The bolts were undone with difficulty as the nuts are right underneath the after deck behind the rudder trunking and were fairly stiff to remove. They show serious rusting and waisting and need stainless steel replacements. Not surprising in a boat that's over 20 years old!

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Replacement stainless steel ring bolts The replacement bolts

Two replacement stainless steel ring bolts each with two washers and a nut.

These replacement A4 stainless steel longshank ring bolts have a thread diameter of M10 and a thread length of 100 mm. Two on-line sources are Stewart Brown at Churchouse Boats, and Seascrew

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Project started and completed June 2002