Teague On Tech: Q & A with Bob Teague August 2023

As seen in Speedboat Magazine’s
August 2023 Issue.

Pros and Cons

There have been quite a few discussions
on social media and the boards regarding the benefits, advantages, and downsides of using prop aerators on boats equipped with surface
drives. I have been personally involved in the development, design, and manufacturing of various aerator kits since surfacing prop sterndrives were introduced. In this article, I will provide the history of the development and evolution of the various aerators that are available. While aerators may not be indicated on some boats, they provide significant benefits on boats that have engines with lower bottom end power using higher pitch propellers and higher gear ratios (less reduction).

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Teague On Tech: Q & A with Bob Teague June 2023

As seen in Speedboat Magazine’s
June 2023 Issue.

Leaning Left

Dear Bob:

Q. I have a brand new 28-foot catamaran
with a single Mercury Racing 600SCI, Mercury ITS, and a Mercury XR Sportmaster drive running a 28 pitch 4 blade Mercury propeller. This is my first Catamaran. With just a driver and passenger the boat has a noticeable lean to port when on plane at any speed. I realize this is caused by propeller torque. At the direction of the boat manufacturer, I burn the fuel out of the left tank first to help the boat ride more level. My question is: What else as a driver can I do to alleviate this lean? Would a set of trim tabs help or just create another problem? Any advice you can give would be greatly appreciated.

Tom Epley
Lake Havasu City, AZ

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Teague On Tech: Q & A with Bob Teague May 2023

As seen in Speedboat Magazine’s
May 2023 Issue.

525 SC Gen V 502

Dear Bob:

Q. I have a 1991 20’ Four Winns Liberator.
Recently, I purchased a freshly built motor
that is a 502 Gen V Big Block with the
Mercury 525SC supercharger set up using the
Weiand 177 blower with a single Dominator carburetor. I installed the engine in the 4 Winns and after running it noticed that the oil was getting water in it. When I checked it out, I discovered that the intake gasket the engine builder used was squeezed out at the water passage close to the #2 intake port. The cylinder heads on the motor are an Edelbrock aluminum hard anodized head designed to replace the stock iron heads. They have old Crane stud girdles and I am not sure of what the valves and other components are. At this point, I want to check out the upper end and get the correct intake gaskets and sealers to re-assemble the motor. Any advice that you have would be helpful.

Brendan Riley
East Haddam, CT

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Teague On Tech: Q & A with Bob Teague April 2023

As seen in Speedboat Magazine’s
April 2023 Issue.

B&M SuperChiller

Dear Bob:

Q. I purchased a SuperChiller Intercooler to
put under my B&M 250 supercharger. Now
I’m having the oil from the supercharger’s
front gear case blow out the pinhole vent in
the fill plug on the top. I don’t believe I had
that problem last year when I ran just the
supercharger. The boost pressure went from 11psi down to 6psi (I expected a drop). Does the B&M supercharger need the vented fill plug? Or do you think there is an issue with the seals in the front of the supercharger?

Thanks for your time.

Thomas Stevenson
LeClaire, IA

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