Sports Service Department has been servicing boater's needs for over 14
years in South East Texas. We are a repair center for Johnson, Yamaha, Mercury,
Suzuki, Mercruiser, & Volvo Penta engines. We repair on Skeeter, Ranger, Bass
Cat, Chaparral, Nautic Star, Just to mention a few Brands... All Pontoon Boats and Most Aluminum Boats.
Phone: 409 755-3200 or 409 769-8530
South Eastex Sports Services Offered:
Outboard Engine Repair
Lower Unit Repair
Outboard Installs and Re-powers
Inboard/Outboard Engine Repair
Cavatation Plate Repair
South Eastex Propeller Service is
local propeller repair company using Rundquist precision pitch blocks and
balancers. We can help you with all your propeller repair needs. We
are a marine dealer that understands the needs of the pleasure boating
enthusiast and their propeller needs.
Prop Tech Phone: 409 755-3200 or 409 769-8530
Cavitation Plate Repair
propellers by adding back diameter whenever possible; welding to replace missing
material to return the propeller to full diameter. We have pitch blocks for most
props enabling us to restore damaged props' pitch angles; in most cases back to
or better than factory specifications.
prices are based on size, type & material of propeller; welding is
additional depending on how much material is missing.
Call or Fax for Repair Estimates...
Click For Price List
Phone: 409 755-3200, 409 769-8530 Fax: 409
For our Prop
Repair customers who live out of Town... Box up your Prop and ship it to
us for repair... Free Return Shipping ** (**Free
return shipping only if repair is made)
Shipping and repair
Ship South Eastex Propeller
Service your damaged prop with all your contact information, name address, phone
and email along with your motors year, make, model and horse power and we will
repair your prop and return ship it to you with in 3 business days.
No CODs' Master Card or Visa and direct payment only.
times the distance from the center of the hub to the tip of the blade. It also
can be looked at as the distance across the circle that the propeller would make
when rotating. It is the first number listed when describing a propeller.
is defined as the theoretical forward movement of a propeller during one
revolution –– assuming there is no “slippage” between the propeller blade and
the water. For most boats, there is slippage and therefore the distance advanced
is less than the design pitch. The amount of slippage varies from boat to boat.
Pitch is the second number listed in the propeller description.
of today’s propellers incorporate a cup at the trailing edge of the propeller
blade. This curved lip on the propeller allows it to get a better bite on the
water. This results in reduced ventilation, slipping, and allows for a better
hole shot in many cases. A cupped propeller also works very well where the motor
can be trimmed so that the propeller is near the surface of the water. The cup
will typically result in less higher top end speed on some of these applications.
Rake is the degree that the blades slant forward or backwards in relation
to the hub. Rake can affect the flow of water through the propeller, and as
implications with respect to boat performance. Aft Rake helps to trim the
bow of the boat upwards, which often results in less wetted surface area and
therefore higher top end speed. Aft rake propellers also typically “bite” better
on ventilating type applications. Forward, or negative rake, helps hold
the bow of the boat down. This is more common in workboat type applications.
Ventilation is a situation where surface air or exhaust gasses are drawn
into the propeller blades. When this situation occurs, boat speed is lost and
engine RPM climbs rapidly. This can result from excessively tight cornering, a
motor that is mounted very high on the transom, or by over-trimming the engine.
Cavitation, (which is often confused with ventilation), is a phenomena of
water vaporizing or “boiling” due to the extreme reduction of pressure on the
back of the propeller blade. Many propellers partially cavitate during normal
operation, but excessive cavitation can result in physical damage to the
propeller’s blade surface due to the collapse of microscopic bubbles on the
may be numerous causes of cavitation such as incorrect matching of propeller
style to application, incorrect pitch, physical damage to the blade edges,
advised disturbances in the water flow forward of the propeller can result in
blade damage which appears to be blade cavitation, but is actually due to
non-favorable water flow into the propeller.
Finding the right match between the propeller, engine type and boat size will
optimize the following performance factors — increased top end, faster plaining
speed, improved low end punch and load carrying capability.
you want to modify your boat’s performance, consider the following before making
Blades or 4 Blades: A recommendation of 3-blade propellers for
recreational boats with 3, 4, and 6 cylinder outboards and I/O engines. These
propellers provide good “hole shot” and top-speed performance.
And a recommendation of 4-blade propellers for bass boats and boats with high
performance hulls running high horsepower outboard engines. Compared to 3
blades, they provide better “hole shot” performance with less steering torque
and less vibration at high speeds.
advantage of a left-hand prop is two propellers spinning the same direction
on twin-engine boats will create steering torque. In other words, two right-hand
propellers pull the stern hard to the right and the bow to the left.
Two opposite-direction propellers on twin engines eliminate this steering
torque because the left-hand propeller balances out the right-hand propeller.
This results in better straight-line tracking and helm control at high speed.
diameter, pitch, and slip
difference between actual and theoretical travel of the propeller blades through
water. A properly matched propeller will actually move forward about 80 to
90 percent of the theoretical pitch.
propellers consist of a round barrel to which the blades are attached. The
exhaust passes through the barrel and out the back, without making contact with
the propeller blades. This provides a good clean water flow to the blades,
usually resulting in good acceleration and hole shot.
propellers have the blades attached directly to the smaller tube that fits over
the propeller shaft, eliminating the larger exhaust tube. These types of
propellers are often used for attaining maximum top speeds. (On some boats, the
hole shot can often suffer due to the extreme exhaust flooding that occurs
around the propeller blades during acceleration.)
over-hub exhaust propellers are used on boats where the exhaust passes out
though the rear of the “torpedo” on the lower unit, around the propeller shaft.
Most outboards utilize this type of exhaust.
propellers are a combination of thru-hub and over-hub exhaust propellers. This
allows some exhaust to escape at lower RPM, providing a controlled amount of
exhaust flooding. These types of propellers will allow the propeller to be
slightly easier to turn during initial acceleration, allowing for a better hole
shot on some engine/boat combinations.
propellers are used for inboards using shaft driven propellers, stern drives
using through hull exhaust, and on some outboards that don’t route the exhaust
through the lower unit torpedo.
Aluminum vs. Stainless Steel:
Aluminum propellers are relatively inexpensive, easy to repair, and under
normal conditions can last for many years. Stainless steel is more
expensive, but much stronger and durable than aluminum. If you are looking for
better performance than can be provided by your aluminum propeller, such as
ultimate top speed or better acceleration, a stainless steel propeller may be
Determine the Wide Open Throttle (WOT) RPM
safety and efficient performance, it is critical that your engine operates
within the RPM range recommended by the manufacturer. Matching the right prop
for the load is the most significant factor of RPM adjustment.
of Prop Pitch on RPM:
pitch change can increase or decrease the RPM and bring RPM into the
recommended range. A 2" increase in pitch (for example, from 21"
to 23") typically results in a decrease of approximately 300-400
Manufacturer’s Recommended RPM. Find the manufacturer’s recommended
RPM range in the owner’s manual or ask your dealer.
Test for Maximum RPM. Using the existing propeller or a new propeller,
make test runs to determine the maximum RPM and boat speed. Vary the trim angle
for optimum performance.
Higher Than Recommended. If the actual WOT RPM are above
the recommended RPM range, install the next larger pitch propeller to
decrease your WOT RPM. Re-test the WOT RPM.
Lower Than Recommended. If the actual WOT RPM range is below the
recommended range, install the next smaller pitch propeller to increase your WOT
RPM. Re-test the WOT RPM.
you combine all these factors, you have the information you need to select the
correct propeller for maximum performance, safety, and fuel efficiency.