Inclination angle - who knows?

[Randall]

Hit a stumper here.  We removed the internal combustion engine from a NISSAN D21 pickup truck, leaving the transmission free floating, only to realize that the shaft has to be inclined at some small non-horizontal angle, in regard to the vehicle's horizontal plane (as it sits on its wheels, the engine mounts define the reference plane)

Without access to the 3d design CAD drawings from NISSAN (which I doubt anyone can obtain) how do we recover this angle?  The electric motor unit has to be installed at the same angle as the ICE.

Where do I find this information?

Thanks!

[leitmotif]

The angle of the motor and transmission assembly is not critical.  Racers often raise an engine to get clearance.  What is critical is that the transmission input shaft is properly mated to the motor and both are on same plane ie the angular difference between motor and transmission shaft is zero.

Hopefully you still have the engine and bellhousing so you can take measurements from them to design adapter plate.

Better yet get rid of transmission and drive direct wit DC shunt or compound or even better AC drive.

Dan Bentler

[aaronraven]

To expand on what Dan said, yes the angle between the motor and transmission is zero. If you are asking about the driveline angle (angle of the rear differential in relation to the transmission) that is more critical to minimize vibration. The transmission mounting height does not matter so much (just keep it near stock), what does matter is that the transmission sits at the same angle as the rear differential. If your rear differential is + 3 deg. from horizontal, then make sure your motor/transmission is mounted at +3deg (exactly parallel the rear diff.)