904-090
January 18, 2008
Now that
the transmission has been cleaned, it is now ready for assembly.
The lower shifting seal is normally a leaker. Originally,
there's a seal and another dust ring seal that's installed
so the dirt from the clutch cannot go through the seal and
into the transmission. This dust seal is no longer available,
so I install two of the normal type grease seals. This does
the same thing as the older type dust seal.
When re-installing
the intermediate plate, which houses all the shafts and gears,
you must measure the sealing gasket and install the same size
gasket. These gaskets are made in graduated thicknesses. This
is done because the backlash of the ring and pinion is measured
incorporating the measured thickness of the gasket. So, if
you install a gasket that's bigger or smaller, the pinion
gear depth will change, thus making the adjustment not correct.
Well,
you'll have to see the finished transmission in the car, because
the photos are missing in action. Had to make the linkage
for the carburetors because a normal 911 has a different placement
of the engine (in the rear). The 904, of course, has it sitting
in the middle of the car, so all the linkages have to be turned
around. The problem is, it's not as easy as just turning them
around, you have to re-make everything.
The arms
have to be chopped off and re-welded in different positions,
then the whole mess has to be re-plated clear, not yellow.
We're
installing a new alternator, but before it gets bolted up,
Andy has to make a new wire harness. It's a lot easier on
the bench than when installed in the car.
The bracket
for the throttle cable has to be mounted to something solid,
so I'm drilling and installing 6mm time serts on the side
of the fan housing for the bracket.
Now the
alternator is bolted to the fan housing. Next, we will install
the fan.
This application
is exactly the same as a Carrera 6 or a 910 engine.
Bret is
putting the fan belt on just prior to installation.
Andy always
likes to tape off the engine bay, just in case there is an
earthquake.
I'm controlling
the jack and the camera.
Nice work
boys!
The last
thing I'm doing today is making the battery cover, which is
at the base of the passenger's feet. Yes, that's correct,
the battery is in the cockpit...go figure!
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