How much in and out propshaft play is acceptable??

KD4UPL

Senior Chief Petty Officer
Joined
Feb 13, 2010
Messages
672
My boat is a '97 Larson 206SEI with a Mercruiser 5.7 and an Alpha 1. I have an aluminum 3 blade prop.
I noticed while checking my prop that it moves in and out slightly when I pull on it. It's only about 1/8 inch. Is this normal?
It's been that way for at least a few boating trips and everything mechanically with the boat seems fine. I don't want to be ignoring a sign of bearing failure or some thing. The prop nut is tight. It's the prop and the shaft it's bolted too moving as one.
 

sharkin95

Petty Officer 2nd Class
Joined
Jun 2, 2007
Messages
106
Re: How much in and out propshaft play is acceptable??

normal ....they all have some play in them mine is about the same 1/8 to 3/16"
 

89Donzi

Cadet
Joined
Jun 22, 2012
Messages
21
Re: How much in and out propshaft play is acceptable??

Both my boats with Mercruiser 3.0's and Gen 2 drives do that as well.
 

ENSIGN

Lieutenant Junior Grade
Joined
Jun 21, 2009
Messages
1,179
Re: How much in and out propshaft play is acceptable??

Normal wear and tear(KB3QVL)
 

KD4UPL

Senior Chief Petty Officer
Joined
Feb 13, 2010
Messages
672
Re: How much in and out propshaft play is acceptable??

Thanks guys, I can rest easy about that one.
 
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