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  

Easy to construct Make and Break Coil

Old Marine Engine » Timers, Magnetos, Ignition » Easy to construct Make and Break Coil « Previous Next »

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

Ernie
Senior Member
Username: ernie

Post Number: 2171
Registered: 01-2002


Posted on Saturday, November 14, 2015 - 03:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have been making these coils for years.
Just an alternator rotor with the shafts cut off. I got a little carried away with this one and cleaned it up in the lathe.



Top of pagePrevious messageNext messageBottom of page Link to this message

Andrew Munns
Senior Member
Username: johnoxley

Post Number: 150
Registered: 04-2010
Posted on Sunday, November 15, 2015 - 02:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Great concept - Certainly beats a bunch of soft iron wires and expense of copper wire.
Top of pagePrevious messageNext messageBottom of page Link to this message

Truman Dodson
Member
Username: tmann

Post Number: 9
Registered: 09-2015
Posted on Thursday, December 03, 2015 - 08:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Ernie, would you mind elaborating on the coil hookups?
What do the two contacts wire into, and does the magnetic portion of the alternator have to be set to a certain point?
Am I correct in thinking that the one contact is for the battery source, and the other to the plug?
Also, where do you get the insulation board.
I've looked for that , and the old insulating washers made out of similar stuff, and can't seem to find a source.

Thanks,

Truman
Top of pagePrevious messageNext messageBottom of page Link to this message

Ernie
Senior Member
Username: ernie

Post Number: 2186
Registered: 01-2002


Posted on Friday, December 04, 2015 - 05:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

This is only the alternator rotor. The ends of the rotor winding are attached to the clips, one on each end. There are no settings. The voltage regulator is gone along with the rest of the alternator.
The insulation board is phenolic. I have no idea where to get it. I have had some for years that I use sparingly.
One side of the coil goes to the insulated terminal on the igniter. The other terminal goes to the battery.
This is for make and break not sparkplug ignition.
Hope this helps
Ernie
Top of pagePrevious messageNext messageBottom of page Link to this message

J.B. Castagnos
Senior Member
Username: jb_castagnos

Post Number: 1128
Registered: 07-2002


Posted on Friday, December 04, 2015 - 07:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I bought phenolic from McMaster-Carr, type in Garolite. We use the 1/2" for timer rings, there are different grades, don't remember which one I ordered, probably the machinable.
Top of pagePrevious messageNext messageBottom of page Link to this message

miro forest
Senior Member
Username: miro

Post Number: 832
Registered: 11-2001


Posted on Wednesday, December 09, 2015 - 10:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Since this is low voltage ( 6 - 12 V) almost any kind of fiber or plastic insulating sheet will be OK. I've used the plastic sheet from the door of a scrap microwave oven among other things.
The MW oven is also good for the transformer which you can use to make a spot welder or other neat-oh device.
Miro
Top of pagePrevious messageNext messageBottom of page Link to this message

Truman Dodson
Member
Username: tmann

Post Number: 10
Registered: 09-2015
Posted on Friday, December 11, 2015 - 11:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks to everyone for the information.
Always enjoy making as much as possible myself anything for repairs,etc. on old engines.
Started thinking that I had learned a lot over the years - until I started reading what you guys know.
You guys are a wealth of knowledge, and thanks again for sharing it. I file ALL of it away, and somewhere down the road it always helps me get another rusty engine up and running.

Truman

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