mercruiser prop shaft question

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georay456

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Jun 8, 2008
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i have a 1989 alpha one drive 5.7 it's working fine now but notice that my prop shaft can move in and out maybe as much as a 1/4 inch my question is is that ok ? should i be conserned get it looked at ? or is it going to fly apart next time i use it ?
 
M

Muqwump

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Jun 5, 2008
Messages
79
Re: mercruiser prop shaft question

Is the shaft moving in and out with the prop or is it just the prop? If it is just the prop then i would guess that it is just the rubber bushing inside the prop worn out.
 
G

georay456

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Re: mercruiser prop shaft question

thank's for the help but it's just the shaft in and out no prop on it
 
Don S

Don S

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Re: mercruiser prop shaft question

The shaft does have some movement, but not 1/4". A sixteenth maybe but not 1/4"
 
B

Bondo Again

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Jun 7, 2008
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53
Re: mercruiser prop shaft question

but notice that my prop shaft can move in and out maybe as much as a 1/4 inch my question is is that ok ?
Click to expand...

Ayuh,.... Perfectly Normal......

I was going to say 1/8",.... But it might be closer to a 1/ 16"......
 
M

Muqwump

Petty Officer 3rd Class
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Messages
79
Re: mercruiser prop shaft question

Can you a good reading on the shaft movement? Maybe a indicator on the end of the shaft or with a staight edge with a scale?
 
BAYLINER185

BAYLINER185

Chief Petty Officer
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Jul 30, 2007
Messages
474
Re: mercruiser prop shaft question

Yea 1/4 inch is a lot. Really maby only a 16th and at most an 1/8th!
 
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