Home | Classifieds | History | Technical | Links | Store | About Us | Email
Topics Topics Edit Profile Profile Help/Instructions Help Member List Register  
Search Last 1|3|7 Days Search Search Tree View Tree View  

prop shaft coupling adjustment

Old Marine Engine » Gray Marine Gas Engines - 4, 6, and 8 cylinder » prop shaft coupling adjustment « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Joe Knight
Member
Username: busboy

Post Number: 7
Registered: 12-2015
Posted on Sunday, June 30, 2019 - 05:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I must first admit my lack of knowledge and experience!
I am trying to adjust he coupling according to the manual but it does not make sense to me
instructions are: remove bolts rotate shaft 360 degrees and both flanges should be parallel and a .003 feeler gauge should not be able to be inserted at any point.
But that changes when you put the bolts back in and tighten them
At least that is what I see
I certainly will appreciate any advise By the way, I am hoping this is to reduce vibration in the shaft?
I do have slight vibration you can feel standing next to the engine box while underway
Thanks in advance
Top of pagePrevious messageNext messageBottom of page Link to this message

Jerry Keto
New member
Username: ketog

Post Number: 2
Registered: 07-2019
Posted on Wednesday, July 03, 2019 - 12:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Joe, if you find no gap greater than .003 then putting the bolts back in only pulls the flanges together and closes any gap of less than .003, which is inconsequential to alignment. If alignment is good, engine mounting bolts and strut bolts and cutlass bearing are tight then consider checking the prop itself. It doesn't take much of a ding for a prop to give off a bad vibe.

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a public posting area. Enter your username and password if you have an account. Otherwise, enter your full name as your username and leave the password blank. Your e-mail address is optional.
Password:
E-mail:
Options: Automatically activate URLs in message
Action:

Administration Administration Log Out Log Out   Previous Page Previous Page Next Page Next Page

Home | Classifieds | History | Technical | Links | Store | About Us | Email
&copy 2005 OldMarineEngine.com, P.O. Box 188, Forest Dale, VT 05745-0188 • Phone: 802-247-4864 • All rights reserved.
   Marine Engine Seloc Repair Manual Lookup Tool

marine gas engine repair and restoration