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Chris Craft
 BoatUS Boat Groups/Manufacturer Forums>>Chris Craft
Subject Topic: new to the group (prop) Post ReplyPost New Topic
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"Seaman Recruit"

Joined: February 03 2011
Posts: 9
Posted: February 03 2011 at 18:17 | IP Logged Quote fatony

hello all
i am new to the group new to chris crafts and new to boat owning and restoring.
i am the owner of a 73 251 Catalina with a 318 cry engine.
i know i will need much help and i thank all in advance.
at this time i need to know which prop is the best for this boat
and the best way to free the rudder ( steering wheel will not turn)

many thanks

73 cat 251 318
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"Seaman Recruit"

Joined: April 05 2011
Posts: 5
Posted: April 05 2011 at 13:43 | IP Logged Quote ....P

In order for us to really help you, we need to know what gear you are turning on this boat.  I would think it is a 1.5:1 reduction, but it could be something else.  In addition, if you have any running info now, such as "the motors will only max out at 3500 rpm" and if you know what props you have on the boat, then we can assist with some speculation or good guesses.   Also, you noticed I said prop(s), so I was assuming this was a twin engine application, but if it is a single motor, then that means a lot too. 

For instance, I would guess with a single 318 and 1.5:1 gear reduction, a 25-foot Chris with a fast bottom like the Catalina, would take a 14x15 RH or something getting close to that.



Edited by ....P on April 05 2011 at 13:46

1973 23' Lancer Inboard, 427 power
1966 38 Commander Express, 427 power
1966 20' fiberglass Sea Skiff
1956 17' CC Sportsman
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