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Replacement cork for carb floats?

Old Marine Engine » Carburetors, Mixers, Vaporizors » Replacement cork for carb floats? « Previous Next »

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Robert
Senior Member
Username: robert

Post Number: 781
Registered: 07-2003
Posted on Wednesday, November 02, 2016 - 01:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I just noticed on eBay what are called "cork flask rings". These are bonded cork of some kind and made for resting round bottom laboratory flasks on. You'd think they must be bonded with something resistant to solvents. Has anyone tried to make carb floats from these?
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Andrew Munns
Senior Member
Username: johnoxley

Post Number: 166
Registered: 04-2010
Posted on Wednesday, November 02, 2016 - 06:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Some friends have cut them from cork sanding blocks and then sealed with fuel tank sealer. Some have also used block Balsa with same sealer.
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Chester H. Long
New member
Username: rustyherman

Post Number: 1
Registered: 11-2016
Posted on Friday, November 04, 2016 - 12:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have made a new cork float from a round bottom beaker holder, I bought several beaker corks on E-BAY. The float is for my Krice carb on a Gray 3HP model "U". I then coated it with gas tank sealer figuring the sealer would prevent fuel from soaking into the cork.
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Robert
Senior Member
Username: robert

Post Number: 785
Registered: 07-2003
Posted on Monday, November 07, 2016 - 10:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks for the feedback. Given the ring shape a lot of roughing out work is already done, if the right size ring can be found, and they do come in a range of sizes. Old stock would probably be a better choice since the new ones are probably made somewhere where everything has the corners cut off! ;-)
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Philippe
Member
Username: nali

Post Number: 8
Registered: 10-2016
Posted on Wednesday, November 09, 2016 - 02:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I did this :
copper float
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J.B. Castagnos
Senior Member
Username: jb_castagnos

Post Number: 1244
Registered: 07-2002


Posted on Wednesday, November 09, 2016 - 06:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Looks good, what does it fit?
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Philippe
Member
Username: nali

Post Number: 9
Registered: 10-2016
Posted on Friday, November 18, 2016 - 10:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

It was for a 1932 Johnson A-50 4hp outboard.
This one --->
https://www.youtube.com/watch?v=I7PC4b1cK3U
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chris spring
Senior Member
Username: spring

Post Number: 57
Registered: 06-2018
Posted on Thursday, January 10, 2019 - 07:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

The Adams motor has a Monarch carb on it. Before I ran it, I took a look inside. After over 100 years, the cork float was pretty well shrivelled up, but the carb worked nonetheless.

I have big plans for the Gidley once I get it in the water this spring. A dodgey carb float might not be a good idea. I'd like to replace it. I was searching around today for a source of cork suitable to carve a new one. I came up with this.

https://www.sportchek.ca/product/331638279.html#331638279=331638280

What say you?

If I go with it, is it necessary to coat this float with a sealer? If so, what do you recommend?

Cheers!
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Bruce Hall
Senior Member
Username: bruce

Post Number: 664
Registered: 07-2002
Posted on Friday, January 11, 2019 - 06:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Put Paul Gray in the search function. Seems Paul is/was making replacement plastic floats for Schebler D carbs. Monarch carb pretty much a Schebler knock-off
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chris spring
Senior Member
Username: spring

Post Number: 59
Registered: 06-2018
Posted on Thursday, January 17, 2019 - 02:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I had a look at synthetic floats. I then decided to try my hand at carving one out of cork. For cork, I bought a yoga brick. The brick cost less than a synthetic float. I found that with the tools I have available making a float was no problem at all. The yoga brick will yield enough cork for probably a dozen floats. To seal it I am using West System since I have it on hand.
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Keith Billet
Senior Member
Username: keith

Post Number: 530
Registered: 02-2002


Posted on Monday, January 21, 2019 - 10:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

How is the weight with the brick material and the West coating?
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John Davis
Senior Member
Username: johnny

Post Number: 596
Registered: 03-2006


Posted on Monday, January 21, 2019 - 11:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I purchased one of those cork Yoga bricks on Ebay a few years back to make engine floats with. It was a waste of money & time. I think the cork is more cardboard & rubber then cork. To heavy for a engine float. Reminded me of wood particle board but not hard.

The Nytrophyl floats work great are very light in weight and you don't have to worry with sealing the float.
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chris spring
Senior Member
Username: spring

Post Number: 61
Registered: 06-2018
Posted on Monday, January 21, 2019 - 08:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

The shrivelled up original weighs 9 gr. The replacement, after two coats of West System weighs 11. The difference is negligible. Close enough for government work.

Cheers!
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Bruce Hall
Senior Member
Username: bruce

Post Number: 665
Registered: 07-2002
Posted on Monday, January 21, 2019 - 08:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Take a look at corkstore.com Cork blocks for duck decoy carving.
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miro forest
Senior Member
Username: miro

Post Number: 1022
Registered: 11-2001


Posted on Tuesday, January 22, 2019 - 10:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

A guy in Gravenhurst, Ont, - mike Windsor, makes replacement floats for Scheblers using his CNC router that he normally uses for boat frames. He's a wooden boat repair guy - and knows about old marine engines.

http://windsorboatworks.com/

I suspect that if you give him your dimensions he can make up several of them.

I went the "carve your own" and "soak in Seal All" cork float route for the DisPro but eventually went over to the 21st Century material.

Miro
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John Davis
Senior Member
Username: johnny

Post Number: 597
Registered: 03-2006


Posted on Sunday, January 27, 2019 - 06:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Chris, You must have got some different cork then what I got. The Yoga cork I got would hardly float and it was real easy to come apart into pieces.

Bruce, I think Paul Gray passed away or is this a different Paul Gray?
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George Coates III
Advanced Member
Username: giii

Post Number: 38
Registered: 04-2010
Posted on Sunday, January 27, 2019 - 06:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Paul was alive and talking as of last Thursday
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John Davis
Senior Member
Username: johnny

Post Number: 598
Registered: 03-2006


Posted on Monday, January 28, 2019 - 08:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

My mistake, It was Paul Cox that passed away. Sorry for the misunderstanding.
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John Davis
Senior Member
Username: johnny

Post Number: 599
Registered: 03-2006


Posted on Monday, January 28, 2019 - 09:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Bruce, The cork for the duck decoy's looks like it would be better as it is Low density where the yoga blocks are high density. Looks more like the cork used on the old style cork floats. A 9"x11-3/4"x4" block is $24.75 you could make many cork floats from that block.

Good deal, Thanks for the info.

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