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  

P5 or P6

Old Marine Engine » Stuart Turner » P5 or P6 « Previous Next »

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

Bernard Nix
Visitor
Posted on Wednesday, November 17, 2010 - 12:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have recently acquired a Stuart Turner single cylinder marine engine. I understand it is either a P5 or a P6, but don't know which. Can anyone tell me how to tell the difference. It does not have the customary brass plate nor any other markings, except the characters AT embossed on the block.

Thanks
Bernard
Top of pagePrevious messageNext messageBottom of page Link to this message

George Martin
Visitor
Posted on Thursday, November 18, 2010 - 05:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Units can be P4/P5 variety with 4 head bolts
and P5 or P6 with 6 head bolts.
Pre-overhaul pistons on P5 were cast iron
Later P5 and all P6 ali piston.
I think all the P6 had a coil ignition and an amal carb. Coil ignition units would have a dynastart or starter and dynamo.
The AT is the block casting I guess and is on all.
There should be a brass plate on the gearbox to get an idea of the age.
P5 will have a mag.
Having said that there is a whole load of variations.
ie P5ME = p5 with electric start and magneto
P6d = P6 with dynastart
P5S = P5 with sailing clutch
Most ST units which had no gearbox had the mark "C" for clutch.
This is only my observations. Bearing in mind the update which could be done to the units by manufacturer, anything could have been changed on your unit.
Top of pagePrevious messageNext messageBottom of page Link to this message

Bernard Nix
Visitor
Posted on Thursday, November 18, 2010 - 12:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

George

Thanks mightily for taking the trouble to give me guidance. From what you say my engine is a P5 (6 head bolts and mag). It does have electric start, but I think that it is a later installation of a atandard starter motor. I suspect it may be a P5S but it has no gearbox nor clutch (so no brass plate). Any idea where I might get hold of a gear box or clutch assembly?

Once again, many thanks for your help.

Bernard Nix (bernienix@yahoo.co.uk)

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