HELP WITH MOTOR SELECTION

[MARK RIENECKER]

I HAVE A CATALINA 18 1987 AND NEED TO REPOWER...WHAT IS THE LARGEST MOTOR THE 18 AND SPRING LOADED MOTOR MOUNT CAN HANDLE...I CURRENTLY HAVE 6 HP AND WOULD LIKE TO STEP UP TO 15 HP IF TECHNICALLY POSSIBLE..MARK RIENECKER 516-731-5720JCUGINI@AOL.COM

 

[John Visser]

15 and 6 could weigh the same

If you look at the Mercury marine specs, you'll see that in a class, like 2 stroke 2 cylinder models, they are all basically the same motor with different horsepower ratings. My 15 actually weighs less than the 6!jv

 

[Bob F.]

Motor weights

I have a 10hp elec. start Chrysler on my Catalina 22 The electric start is the best invention yet especially with the up-front f-n-r shift. When I was having it serviced this winter, I learned that everything from the 7.5 up to the 12hp is basically the same motor with just changes in carburation and timing. The weights are the same.

 

[Tom Fuller]

Catalina 18 Motor Selection

The motor bracket manufacturer for your boat recommends that a 15 H.P. maximum engine should not be exceeded. Catalina recommends a 4-6 H.P. to be adequate. A larger engine will not increase hull speed and may add unnecessary weight in the stern. I own an '87 Capri 18 and recently purchased a Tohatsu 4-stroke, 4H.P. It's quiet and works just fine.