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  #26   IP: 209.6.133.136
Old 12-05-2020, 08:41 PM
TimBSmith TimBSmith is offline
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I would suggest buying the service kit if you have late model Zenith..

https://moyermarine.com/product/carb...-kit-fcar_594/

When I cleaned/rebuilt my carburetor this fall I bought the kit above and it has the gasket you want and many others as well as other basic service components. $35 (if the kit is right for your carb). Even if it is not, I will wager that one of the smaller diameter fiber gaskets will do the trick.

After spending a lot of time sealing a fuel-related leak on my Racor fuel filter bowl, I would not use copper or anything other than the small soft fiber gasket that seats so nicely and reliably seals in the main passage, so much so that it likes to stay stuck in the passage after the bolt is removed.

In fact, during my carb clean/rebuild the passage gasket did not want to come out and I used a small pick to gently displace it. My vote, buy the kit, use parts that fit. Happy Holidays. Stay well.
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  #27   IP: 209.6.133.136
Old 12-05-2020, 09:17 PM
TimBSmith TimBSmith is offline
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Also just found this thread which may give you an alternative to kit...

https://www.moyermarineforum.com/for...ead.php?t=4547

Looked in up here:
https://www.mowpart.com/271716-brigg...hoCgysQAvD_BwE

Solve the problem, save some money. Stay well.
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  #28   IP: 47.142.133.234
Old 12-05-2020, 11:35 PM
JOHN COOKSON JOHN COOKSON is offline
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Quote:
Originally Posted by Golfdad75 View Post
A mechanic suggested a copper washer on the main plug in the carburetor. Any thoughts?
Copper and aluminum in a "marine environment" sound like a perfect set up for electrolysis. As I recall aluminum is the sacrificial metal.

ex TRUE GRIT

Last edited by JOHN COOKSON; 12-06-2020 at 10:28 AM.
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  #29   IP: 155.186.122.195
Old 12-06-2020, 10:44 AM
Dave Neptune Dave Neptune is offline
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Thumbs down Copper ring seals

No copper. Copper sealing rings are used on banjo fittings as the bolt and the base are steel so the copper crushes and seals. The copper can cause the aluminum to distort (crush) and may just seal. But the next use won't seal as it will be almost impossible to match the pieces in the same EXACT position.
Then there is the electrolysis issue.

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carburetor, fuel leak, fuel pump carb pipe

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