Concerning Itlvets
The question as to whether rivets
should be set while hot or cold de
pends greatly upon the wortc which
they are to do. For fenders ot such
parts, cold riveting will do, but for
more Important parts, such as frame
units, a hot riveting will give the
best results.
Progressive Tightening
In tightening opposed nuts, such as
those holding the bearing caps in
place, one nut should be drawn up a
little and then the opposite one tight
ened a little. It is wrong to tighten
one nut fully and then proceed with
the other, as this method tends to
spring the metal and cause poor
contact.'
A Spark Plug gnggestfon
To prevent compression leaks. It is
a good plan when replacing a spark
plug to make a paste of some flake
graphite and cylinder oil and smear
this on the threads of the plug. This
will not only help to make the plug
tight, but will prevent the plug and
the metal of the cylinder from fusing
together, due to the heat, so that the
plug cannot be taken out.
