Restoration
of a 1969 Triumph Trophy
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On
collection of the machine in late October it was covered in dirt and
grime, that had to be removed before it could be dismantled. On dismantling
the machine I found a split rear suspension unit mounting, which was
repaired, a large crack in the timing cover oil pressure switch lug
and a lump missing from the crankcase oil seal housing which had been
previously filled with orange silicone sealer. |
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Repairs
to these were ally welded. The oil in the engine had emulsified thus
the internals of the engine had been standing in water for years.
The head of the sludge tube locating bolt in the crankshaft sheared
due to the corrosion and the remaining stud had to be drilled out.
The sludge tube-retaining plug was also seized into the crankshaft
and also was drilled out. The con-rod faces were deeply scored and
were polished to remove the possibility of stress fractures. One pushrod
was longer than the other three. The cylinder head valves, guides,
and seats were unusable and two rocker box threads were badly damaged
and had to be ally welded and re- tapped. It was noted that one spark
plug thread had already been heli-coiled. |
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