The following is a brief
overview of the billet rod and flat top piston installation.
The rod comes with detailed instructions which include information
on tools needed, finding the oil clearance between the bearing
and crankshaft journal, proper bolt torque sequence and the
use of oil and assembly lube. The proper installation
of your rod is critical. Read and understand the manufacturers
installation instructions before attempting this installation. |
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You will remove the cylinder
head first. Start by placing the piston at top dead center
(TDC). To do this, remove the spark plug so you can see
the piston. Turn the engine over until the piston is at
the top of the cylinder (nearest the spark plug hole).
This is TDC.
Remove the four bolts holding the cylinder head in place.
Notice two of the bolts are located under the valve cover.
With the cylinder head off, remove the engine side cover for
access to the rod. |
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Remove the two 10mm bolts that are
holding the rod end cap in place. |
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Push the rod and piston
up, through the top of the cylinder. |
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Remove the end cap bolts
from the billet rod. The factory torques these bolts so
we had to place the rod in vice, with a rag. This allowed
us to get some leverage and break the bolts loose. |
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With a pair of needle
nose pliers, install a "C" clip on one side of your
flat top piston. Lightly oil the wrist pin and install
it through the other side of the piston and through the billet
rod. Now install the second "C" clip into the
piston. Note: the piston should be positioned with the arrow
closest to the pushrod hole. |
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Place the bearings in the rod and
rod end cap. Make sure the holes in the bearings match
up with the oil holes in the rod and end cap. Apply some
oil or assembly lube to the bearings.
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Install the rod and piston
into the cylinder. A popsicle stick works great for pressing
the rings into the cylinder (if you don't have a ring compressor).
Make sure the crank journal is clean and lined up with the rod
end before the piston is all the way into the cylinder. |
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Once the piston is all
the way into the cylinder and the rod end is positioned firmly
against the crankshaft journal, install the rod end cap.
Turn the bolts down finger tight. Torque the bolts according
to the manufacturers recommendations. |
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After the rod is installed,
rotate the crank and make sure the rod does not come into contact
with anything. We have never had a problem with rod clearance,
but you should always check. If there is a problem, this
is the best time to find out. Make sure the crank case
is clean and reassemble your engine.
Performance information for your Honda GX160, GX200, GX340, GX390,
Blue OHV clone provided by AGK. |
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