944 Driveline Information - 944 engine Conversions
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924-944-968 V-8 Engine Conversion Drive Shaft Problems
We have noticed some V-8 engine conversions have problems with their torque tubes due to the drive shaft being improperly spaced in the clutch assembly. This improper spacing ruins the drive shaft.
Below are photographs of a ruined drive shaft end nub and splines due to this type of improper spacing. You can see where the clutch was riding at the end of the splined area instead of engaging the middle portion of the drive shaft splines. This misalignment finally caused a failure of the torque tube bearings, which had previously been rebuilt with inferior bearings and aftermarket hard plastic inserts, which then caused drive line vibrations during operation. If you see this type of failure you will need to obtain proper spacing between the flywheel and clutch assemblies, as well as a new pilot bearing housing to correctly capture the drive shaft end nub. These parts can be obtained from different aftermarket sources which can be located by visiting the 944 Hybrids Forum online.