Engine Assembly - Cobra 2005 King Owner's Manual

CAUTION:
Take caution when handling the crankshaft. It is the main power transfer to the
rest of the engine. If it is out of alignment, it will cause premature failure of your
bearings which can lead to serious damage to the cylinder and the rest of the
engine. Do not try to true the crank yourself. Truing the crank should be done
professionally.
CAUTION:
• If you split the cases, check the gear tooth faces for chipping & signs of
fatigue.
• Check the small needle bearings for fatigue. If the bearings are damaged,
the engine cases should be checked to make sure the needle-bearing casing
didn't oblong the bearing hole in the case.
• Needle bearings should be replaced every racing season.

Engine assembly

CAUTION:
For any seals that are to be installed, apply a light amount of grease to the seals'
ID, assembly lube on all bearings and a small amount of Loctite to the OD.
1. Press the three bearings into the respective holes in each case half.
2. Press in the crank seals such that the concave side faces the crank weights.
3. Press in the counter shaft seal (concave side faces inside of transmission)
4. Install the water pump assembly wire ring retainer
5. Press in the water pump assembly
6. Tap both ways axially then verify easy rotation.
7. Inspect the crankshaft for proper true geometry (no more than 0.002 ",
0.05mm, measured at bearing journal area while supported from the ends).
8. Press crank into right case half
CAUTION:
Insert a 7.05mm (0.278") shim between the crank throws before pressing on the
crank.
9. Insert the transmission input shaft and install large drive gear as shown in
figures 25 & 26.
NOTE:
If the nut was removed from the input shaft, it will be easier to install and tighten
later.
44