1970 - 55hp Chrysler Outboard With Loose Propeller

[Stefun]

Hello, <br /><br />I have bought a 1970 - 55hp outboard from chrysler. The engine is in good condition so it was a good deal, but I found a bug. The propeller is loose. It can be slightly moved on the interleaved drive shaft. The first thing I did was removing the propeller and looking what's up. The reason for that is that the propeller cannot be pressed on the interleaved drive shaft because there is a grooved pin through in the propeller. I thought there should only be a safty pin through the propeller and the drive shaft. <br />Can anybody help? The next thing I will do is removing the grooved and replacing it with a safty pin, which is thinner so the propeller can be slipped on the drive shaft so that it is fitting thight. <br />Sorry for my humble english, but I'm not a native speaker.<br /><br />Stefun

 

[eurolarva]

Re: 1970 - 55hp Chrysler Outboard With Loose Propeller

Hello Stephun and welcome to Iboats. Here is what I believe you are saying. Your propeller is connected to the prop shaft by splines. There is a hole in the drive shaft where a circuillar pin is inserted when the propeller is lined up correctly. Then there is a propeller nut that is screwed in and held in place with a cotter pin.<br /><br />When you shift your motor into forward you will have quite a bit of freeplay in the proppeller. You should be able to move the prop a couple of inches in either direction by hand before you meet resistance. The round screw that goes through the propeller is to prevent the prop from moving forwards and back.

 

[Stefun]

Re: 1970 - 55hp Chrysler Outboard With Loose Propeller

Thank you for your input.<br /><br />It is like you described it, but my problem is, that prop can be moved for approximately 1mm forward and back on the drive shaft, in direction of the drive shaft. <br />Reason for that is the freeplay of the circuillar pin, which is not fitting thight to the hole. Is that o.k.?<br />I am used to thight fitting connections, as I'm doing a couple of car repairs. I'm really afraid of loosing the prop... <br /><br />The possibility to move it in the direction it is turning around semms o.k. to me.

 

[scotiany]

Re: 1970 - 55hp Chrysler Outboard With Loose Propeller

What's your email address. I'll send you a diagram of the parts that should be on the prop shaft. I just checked mine and I have 3-4mm lateral movement on the prop. I don't think you have any problem.