2221 MAGNOLIA DR DELAND, FL 32724 386-626-8556 service@ricemarine.com

2221 MAGNOLIA DR DELAND, FL 32724 386-626-8556 service@ricemarine.com

2221 MAGNOLIA DR DELAND, FL 32724 386-626-8556 service@ricemarine.com2221 MAGNOLIA DR DELAND, FL 32724 386-626-8556 service@ricemarine.com

This page provides specific information pertaining to input and output rotation relating to VELVET

A. Definition of hands of rotation:
1. Left Hand (LH) rotation = engine crankshaft turning counter- clockwise as viewed from the rear of 

    the engine.  Also known as automobile rotation or standard rotation.
2. Right Hand (RH)  rotation = engine crankshaft turning clockwise as viewed from the front of the 

    engine.  Also known as boat or marine rotation and counter rotation.

B. Model specific rotation:
     All of the listed transmissions, except those in Section C. below, may have either LH or RH input
     rotation, dependent only on the correct indexing of the pump.  This has no effect on the reversal
     or non reversal of rotation built into the reduction gearing.  Reversal or non reversal of rotation
     between input and output is due to the internal layout of the gear reduction section and it is not
    changeable without changing the reverse pinion carrier and/or all the reduction gearing. 

1. Models 71C, 72C, 1017 & 1018:
     a. Ratios  1:1, 1.52:1, 2.10:1, 2.57:1 & 2.91:1 input rotation may be either LH or RH, the output

         rotation will always be the same as the input rotation in forward.
     b. Ratios  1.91:1 & 1.88:1 input rotation may be either LH or RH, the output rotation will always
 2. Models 1004 & 1005 V-Drive:
     a. Model numbers ending -002 (1.99:1), -005 (2.49:1), -011 (1.51:1) & -012 (1.21:1) input 

         rotation may be either LH or RH, the output rotation is the same as the input rotation in 

         forward.
     b. Model numbers ending -003 (1.98:1), -004 (2.50:1), -010 (1.53:1) & -013 (1.21:1) input 

         rotation may be either LH or RH, the output rotation is opposite the input rotation in forward.

3. Models 73C & 1006
    All ratios - input rotation may be either LH or RH, the output rotation is the same as the input
     rotation in forward.

The followings applies to all the above models.  Incorrect pump indexing will result in non operation of  the transmission.  The arrow at the top of the pump body MUST match the rotation of the engine 

as  seen from the FRONT of the engine.  If it does not then remove the 4 bolts and rotate the pump 

body 180 degrees until the arrow matches the engine rotation.  If there are any letters beside the arrows disregard them.  It's the arrow that must match. 

4. Models 1013 & 1014 (CR2 Series):
    a. Model numbers ending -001 (1.58:1), -003 (2.03:1), -005 (2.47:1), -007 (2.93:1) LH input

         only, output is the same as the input in forward.
     b. Model numbers ending -002 (1.58:1), -004 (2.03:1), -006 (2.47:1), -008 (2.93:1) LH input 

          only, output is opposite the input in forward.

     c. Model numbers ending -009 (1.58:1), -010 (2.03:1), -011 (2.47:1), -012 (2.93:1) RH input 

         only, output is the same as the input in forward.

Operating any of the above transmissions in reverse to obtain forward boat motion will severely
damage the transmission.  The reverse gear is not made to handle higher than idle RPM.  The shift
lever on the transmission MUST be toward engine when boat is moving forward.
C. Models 1026 (Series 7000), 2001 & 2002 (Series 5000) and 3001 & 3002 (Liberty Series):
    All ratios operate only with LH input rotation.  Output for forward boat motion may be either LH or 

    RH rotation. 
1. Model 1026 - turning the shift lever shaft clockwise causes output to be opposite the input,  

    turning the shift lever shaft counter-clockwise causes output to be the same as the input.  
2. 5000 & Liberty Series - shift lever toward the engine causes output to be opposite the input, shift
    lever away from the engine causes output to be the same as the input.