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Enderle 80A Fuel Pump Identification, Rotation, with Instructions for Reversing
If an 80A Enderle pump is marked 80A with no other markings, it is a Dash 1, 7 GPM fuel pump – too large for small 200-370 cu in naturally aspirated engines but too large for almost any Gas engine unless it is 700 cu in or larger.
If after the 80A designation the pump is marked 0, it is a small Dash 0 pump which is 4 GPM – correct for most 200-370 cu in Methanol engines or Gas engines up to 500 cu in naturally aspirated.
If after the 80A designation it is marked .5, it is a “Half” or 5 GPM pump – good for Methanol approximately 370-470 cu in or gas engines, naturally aspirated, from 500-650 cu in.
The Enderle Fuel pump Rotation can be identified and reversed, as needed.
With the inlet opening facing down at 6 o’clock, the V Notch in the cover should be at 9 o’clock for Belt Drive Rotation or Rear Cam Rotation ( Pump turns Clockwise when turning the Hex Shaft)
With the inlet opening facing down at 6 O Clock, the V Notch in the cover should be at 3 o’clock for Timing Cover or Front cam rotation. (Pump turns Counterclockwise when turning the Hex Shaft)
To Reverse the rotation:
Remove the eight cover bolts, and turn the V Notch 180 degrees to the correct desired rotation as explained above.
When re assembling, use a liberal amount of heavy oil like engine oil, or very light grease- NOT WD40 or Thin oil like Marvel.
This will ensure a good prime.
Turn the hex shaft as you are re assembling, torque the bolts to approximately 15 lbs., and use a logical torque pattern. DO NOT simply go around in a circle with your pattern.