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  

10hp Vim 2 cylinder piston

Old Marine Engine » One and Two Cylinder Gas Inboards » 10hp Vim 2 cylinder piston « Previous Next »

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

motorcanoe
Member
Username: motorcanoe

Post Number: 13
Registered: 06-2013
Posted on Sunday, November 17, 2013 - 06:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I am restoring a 10hp Vim engine and need to have a piston and rod made. Any one know where or who can provide this service. 4" bore photo's attached.
Vim piston1
Vim piston2
Vim piston3
vim piston4
Top of pagePrevious messageNext messageBottom of page Link to this message

jb_castagnos
Senior Member
Username: jb_castagnos

Post Number: 840
Registered: 07-2002


Posted on Sunday, November 17, 2013 - 07:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have some 4" Lockwood Ash pistons blanks we cast in aluminum, you would have to use two,you could have the bronze rod cast.
Top of pagePrevious messageNext messageBottom of page Link to this message

motorcanoe
Member
Username: motorcanoe

Post Number: 14
Registered: 06-2013
Posted on Sunday, November 17, 2013 - 08:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

JB, I sent you an email regarding your response. Thanks
Top of pagePrevious messageNext messageBottom of page Link to this message

axtion_jim
Advanced Member
Username: axtion_jim

Post Number: 40
Registered: 11-2010
Posted on Thursday, November 21, 2013 - 11:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hi Eric, How`s it goin, did the K2 and the Detroit arrive in one piece. I also have some VIVIAN parts.
Top of pagePrevious messageNext messageBottom of page Link to this message

motorcanoe
Member
Username: motorcanoe

Post Number: 15
Registered: 06-2013
Posted on Friday, November 22, 2013 - 08:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hello Jim,
Yes they did and they are fantastic. Do you have any parts for this VIM?
Top of pagePrevious messageNext messageBottom of page Link to this message

motorcanoe
Member
Username: motorcanoe

Post Number: 17
Registered: 06-2013
Posted on Tuesday, December 10, 2013 - 01:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I still need source to have a couple pistons made. Egge in California would not make the piston. Does anyone have a source that will make the pistons. I had the connecting rod cast but not machined yet.
Top of pagePrevious messageNext messageBottom of page Link to this message

johnoxley
Senior Member
Username: johnoxley

Post Number: 106
Registered: 04-2010
Posted on Tuesday, December 10, 2013 - 05:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Do you have a photo of the underside/inside of the piston. It could be machined from cast iron stock by a competent machinist.
Our group has the benefit of a kindly patternmaker who knocks out patterns, then a kindly foundry and volunteer machinists. We would buy in or machine rings and alter the ends for the pegs.
I doubt an old engine like this has cam ground exterior. It looks turned and would be cylindrical, perhaps with some relief above the top ring.
Have you thought about skimming the piston and sleeving the bore? Port work would be difficult.
Top of pagePrevious messageNext messageBottom of page Link to this message

motorcanoe
Member
Username: motorcanoe

Post Number: 18
Registered: 06-2013
Posted on Tuesday, December 10, 2013 - 06:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I can produce a photo of the inside tomorrow. I have a source for original rings. The new pistons can be made from aluminum.
Top of pagePrevious messageNext messageBottom of page Link to this message

johnoxley
Senior Member
Username: johnoxley

Post Number: 107
Registered: 04-2010
Posted on Tuesday, December 10, 2013 - 09:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

We once put NOS aluminium pistons retrofitted into a WW2 J2 Kelvin (4.25" bore). Thought these new original pistons would be great. Unfortunately, they expanded too much during a run and locked up in their salt water cooled barrels. To get them to run, we had to warm up for 20 minutes and get the barrels hot. We skimmed the pistons and made them loose when cold, but they still locked up when hot. Suspect early Duralumin and not the more modern high Silicon low expansion Aluminium alloys. We had to go back to NOS cast iron pistons.
Top of pagePrevious messageNext messageBottom of page Link to this message

motorcanoe
Member
Username: motorcanoe

Post Number: 19
Registered: 06-2013
Posted on Tuesday, December 10, 2013 - 10:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks for the advice on the aluminum. So I quess I should go back to cast iron. Will keep looking for someone to do the work. Sure wish you were closer to the USA.
Top of pagePrevious messageNext messageBottom of page Link to this message

motorcanoe
Member
Username: motorcanoe

Post Number: 20
Registered: 06-2013
Posted on Tuesday, December 10, 2013 - 10:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

More photo's:
vim pistonvim
Top of pagePrevious messageNext messageBottom of page Link to this message

jb_castagnos
Senior Member
Username: jb_castagnos

Post Number: 851
Registered: 07-2002


Posted on Wednesday, December 11, 2013 - 08:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

We run aluminum pistons in our Lockwood Ash motors with no problems. I've made two 30 mile runs in my boat with an 8hp L-A, I made the patterns and had the pistons cast. A friend machined the first set and installed them in a boat, ran about a mile and it seized, cooled and ran a little seizing again. We took it down and found he had machined the pistons the same diameter all the way to the top, the top land was expanding from the heat and binding. Stock pistons are .010" smaller on the first land than the skirt, we increased the aluminum pistons to .020" and had no more problems. It's not uncommon to see the top land of an overheated automotive engine scored.
Top of pagePrevious messageNext messageBottom of page Link to this message

motorcanoe
Member
Username: motorcanoe

Post Number: 21
Registered: 06-2013
Posted on Wednesday, December 11, 2013 - 11:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Jb, can you send me a photo of your Lockwood Ash 4" piston that I could possibly use after machining.

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