What does a smaller water pump pulley do?
Table of Contents
What does a smaller water pump pulley do?
If you want the water pump to spin faster, you’d need a larger diameter pulley, not smaller. As I understand it, the reason for smaller balancer pulley is so that the accessories will spin slower, thus saving a few HP. So obviously the water pump will spin more slowly, and move less volume of water.
How long is Chevy short water pump?
They always had the compressor mounted on the passenger side of the engine while the alternator stood on the driver’s side. Short water pumps measure from the front to the back where it mounts on the engine block to the pulley flange. They measure 5 5/8 inches for SB engines and 5 3/4 inches for BB engines.
What size are SBC water pump pulley bolts?
The bolts in this kit are 5/16″-24 x 3/4″ flat head cap screw. This bolt kit is used when you remove fan and stock pulley and install an aluminum pulley nose.
How do you measure a pulley on a water pump?
Place your pulley face down on a flat surface, then put your ruler or caliper on top, measure from outside edge to outside edge across the circle of the pulley.
How does water pump pulley work?
The water pump’s pulley is designed to transfer the drive belt’s movement into the bearing spindle. The pulley receives the engine traction and acts as a medium between the two, mediating the amount of torque that goes through.
What is hub height on a water pump?
A: “Hub height” is the industry term for measure a water pump’s height. The hub height is a critical belt-alignment dimension determining where the water pump pulley belt groove(s) fall in relation to your crank, alternator, power steering pump and air conditioning pulley grooves.
Can a water pump run backwards?
The chance for a pump to run backward occurs most commonly with applications utilizing three-phase power when installing a new pump and electric motor, replacing a motor, changing a starter, or adding a VFD. Before coupling the motor to the pump, run a “bump test” to ensure the shaft is turning the right way.
What size are SBC crank pulley bolts?
The bolts for a small block chevy harmonic balancer/lower pulley bolts are 3/8 x 24 and about 1″ long.
How can you tell if a water pump is reverse rotation?
A REVERSE rotation pump rotates the opposite direction of the crankshaft. Water pump pulleys running on the INSIDE surface of the belt indicate a STANDARD ROTATION water pump. Water pump pulleys running on the OUTSIDE surface of the belt indicate a REVERSE ROTATION water pump.
What is a impeller water pump?
An impeller is a rotating iron or steel disc with vanes in a centrifugal pump. Impellers transfer energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid radially outwards from the centre of rotation.
What direction should a pump turn?
This may indicate a backwards pump. Rotation is indicated on the head of the pump, you’ll see an arrow going counter-clockwise. This is the direction you want the pump spinning.
What size is a small block Chevy harmonic balancer bolt?
Compare with similar items
| This item Moroso 38770 Balancer Bolt for Small Block Chevy | GM Performance Parts 12557840 Balancer Bolt | |
|---|---|---|
| Customer Rating | 4.8 out of 5 stars (243) | 4.7 out of 5 stars (588) |
| Price | $1599 | $875 |
| Sold By | Amazon.com | Silver Seal |
| Item Dimensions | 7.19 x 5.44 x 1.13 inches | 6 x 2 x 2 inches |
What size is a harmonic balancer bolt?
Product Specifications
| Color: | Black |
|---|---|
| Thread Diameter: | M12x1.5 |
| Thread Length: | 40 mm |
| Thread Pitch: | 14 mm |
| Thread Type: | Fine |
