SHEETS AND TIP SHEETS
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Tips - Calculate
Tips - Stroker
Tips - Cylinder
Tips - Deck
Tips - How
do degree in your camshaft
YFZ-450 - DD05
stroker crank (488cc kit)
YFZ-450 and YZ-450F - 502cc
FJ-1100/FJ-1200 - Clutch
Oil Pan Baffle
YZ-450 & YZ-250 Sprocket
you don't see the document you need, please call us. 727-797-2468
IMPORTANT TO BREAK-IN A NEW CRANKSHAFT PROPERLY TO PREVENT DAMAGE,
GET THE BEST ENGINE PERFORMANCE AND LIFE. CLEAN YOUR CRANK BEFORE
1 - Proper oiling is critical for engine
break-in and long engine life.
Step 2 - Nearly all aspects
of bearing performance are linked to lubrication.
Step 3 - For proper lubrication,
there must be oil film formation sufficient to support the load.
three key parameters are bearing/oil temperature, minimum oil
film thickness and peak oil film pressure. Bearing clearance
is the most critical aspect in controlling these parameters.
temperature should be warm, not hot. Bearing temperature is
an inverse function of oil flow. As oil flow increases, bearing
oil film pressure should be minimized. Low clearance will produce
a wide arc of contact, and low film pressure. High clearance
will cause a narrow arc of contact and high film pressure. Most
crankshafts perform best with the manufacturers recommended
clearances. Proper case/bearing alignment is critical.
film thickness should be maximized. Change oil often! Use thin
oils with caution, and only with modified systems to increase
crank repairs performed by Falicon are toleranced for standard
bearing clearance. We highly recommend using the original equipment
manufacturers's recommended oil for crankshaft and connecting
rod break in.
CONNECTING ROD PREPARATION
New connecting rods also need to be "broken
in" before installation. Use this procedure for break-in
of your new rods.
Step 1 - Clamp
your new rod in a rod vice or machinists' vice between two pieces
of wood. Loosen and tighten each bolt gradually to the torque
specification approximately 5 cycles. To disassemble the rod,
partially loosen each bolt, remove the rod from the vice and
lay the rod on a flat surface. Tap on the ends of the rods to
drive the rod from the cap. Loosen the bolts and pull the cap
as straight as possible. Use caution to prevent damage to the
hollow alignment dowels.
Step 2 - Install
the piston to the rod if appropriate, then assemble a bearing
half to the rod and cap. If you are not certain if your bearing
is the proper size, you will need to pre-assemble the rod and
bearing, torque the bolts to the proper value and measure the
inside diameter. Measure the appropriate crank journal and verify
that the bearing oil clearance is correct. Use the OEM-recommended
Important - We
highly recommend using a stretch gage when installing our Knife®
Connecting Rods. Of all the effort applied to a given fastener,
more than 50% is the torque required to simply overcome friction
that must be overcome to cause a nut or bolt to turn. ARP recommends
the bolt-stretch method since the pre-load is closely controlled
with a gauge and it is independent of friction.
Step 1 -
Falicon rods may be installed in either direction.
Install the rod assembly onto the crankshaft. Using caution,
orient the cap and rod serial numbers and align the cap with
the location dowels. Tap the cap into place with a soft mallet.
Do not use the bolts to pull the cap into position! Apply additional
ARP lubricant to the bolt threads and under the bolt head. Install
the bolts and tighten until snug.
Step 2 - Place
shim stock between the rod and crankshaft thrust faces. This
will help support the rod cap and prevent distortion in the
rod housing bore during the final tightening process. (If you
have not cycled the bolts in the rods, this is your last opportunity.
See rod assembly bread-in procedure.) Tighten each bolt in 5
foot-pound increments to 20 foot-pounds (240 inch-pounds). Do
not stop here - the bolts are NOT tight!
Step 3 - Final
tightening procedure using the preferred bolt-stretch method.
Seat the pointed ends of the stretch gage into the bolt dimples.
Adjust the gauge so that it has approximately 0.040" (1mm)
preload. Align the needle to "0" and tighten each
bolt until the prescribed stretch is achieved.
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