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Gene Jr. replaced the dowel pin O-rings, then used a little oil
on the head bolt threads and seating surface to allow them to glide
into place.
The stock heads were replaced with Screamin' Eagle
performance heads with improved port shapes and "bathtub" combustion
chamber. Gene Jr. cleaned the gasket area with a single edged razor
blade. The heads came complete, but not with gaskets. New O-rings for
the pushrods do come with new cam kits. We also needed new dowel pin
O-rings for the heads.
With only the heads, not including high compression
pistons the compression ratio would be bumped to 9.5:1. We were
shooting for low end torque, but long term reliability. With new
gaskets the heads were easily replaced and torqued in a Z-pattern to
17-foot-pounds of torque.
"Then to pull them into place gradually," Gene said, "I
change the setting on the torque wrench to 30 foot pounds, continued
the procedure and finally to 45 for the last leg of tightening." The
bike was flying back together.
That was it for our half-day with Gene. My palms were
sweating. Another day scratched off the list. I had two days left.
The uncertainty was driving me crazy.
We were back at he plant with steaming mugs of coffee the
next morning with our fingers crossed. Did Alan survive the Chinese
Mung, would Gene Jr. be on hand for the completion? Did we have all
the parts we needed to complete the job. Would my mother still love
me, if I got married for the sixth time? It was Wednesday and the
pressure was building.
Alan arrived a little pale around the gills but opted to turn
wrenches rather than to deal with his screamin' newborn. We went
back to work.
He installed the bottom rocker boxes with new gaskets and
15-18-pounds of torque. New pushrods were not necessary since the cam
was not of the high lift variety, so the originals were slipped back
into place with the stock covers (remember that the stock jobs were
color-coded and needed to return to their original spots). Then the
rocker arm support place was replaced and torqued to 15-18 foot
pounds on the big bolts.
Side Bar: Make sure to note the last two numbers on part
numbers when ordering parts. Just because a part is featured in the
2003 P & A catalog doesn't mean it will fit a 2003 model. I ordered
the Screamin' Eagle performance injection module. It was designed for
the last EFI system, not the current one. It wouldn't work. If the
part number includes, "01" it won't be compatible with an "02"
model.
Alan reinstalled the top rocker box covers and tightened them in
a crossing pattern unable to reach all the fasteners with a sizable
torque wrench.
"The rocker box gaskets are new," Alan said, "they're made
of rubberized metal."
Alan blasted into the chore of reinstalling the intake module and
it's myriad of sensor plugs in a matter of short minutes. It included
the intake air temperature sensor, throttle position plug and the MAP
sensor. Using the barely worn intake seals he installed the intake
manifold rings and torques them into place (120-inch-pounds)
eyeballing the module to insure that it was level with the pavement.
Without hesitation or referring to a manual he reattached the idle
sensor, the injectors, the cruise control cable and sensors, then the
push and pull cables.
Alan explained that the factory actually puts an hourly number on
all installations as a guide for estimating service work. Replacing
the cams and heads calls for almost six hours of service time at 70
bucks an hour. These men learn their machines and how to move quickly
and efficiently including some time for detailing. A 95-inch, big
bore kit usually requires eight hours of labor.
Alan gooped-up the breather fittings and air cleaner bracket
with silicon prior to bolting it in place.
The next step included tearing into the Screamin' Eagle air
cleaner box. Alan sensed the deadline pressure, quickly poured all
the fittings and fasteners on his wooden work bench and scrambled
through them to find the breather fittings. He assembled them in his
hand and coated them with a silicon sealer. While the ointment was
still wet he installed the breather fittings, bracket and the backing
plate, then ran the rubber breather lines from the fittings through
the backing plate. After all the components were in place, he
tightened the fittings. Then he wiped the parts clean off the oozing
silicone.
With the air cleaner element in place the new Jet Hot (Engineered
Applications, LLC (323) 585-2894) coated teardrop air cleaner cover
was installed. Another performance element was completed. I was still
biting my nails. According to the Parts and Accessory catalog, even
replacing the air cleaner with a Screamin' Eagle unit requires
remapping the fuel injection system from Alan's computer.
Alan replaced the spark plugs, top motormount, horn
bracket and torques the plugs to 25 foot pounds, before replacing the
tank.
"I always use a dab of Never-Cease on the plug threads,
"Alan commented as he moved quickly from one task to the next
glancing at me and the clock over his shoulder. The tank was
carefully turned and set back into position then the front equalizer
tube was carefully run in front of the coil to the other side of the
tank. A new clamp was crimped into place. Care was taken to insure
the coil was in the proper position before the tank bolts were
replaced. Alan doesn't recommend that Loctite be used on bolts that
come with locking pads.
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