420C Sediment bowl

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Buckhorn
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420C Sediment bowl

Post by Buckhorn » Tue Apr 13, 2021 11:11 am

I just removed the sediment bowl off of my dozer, and there wasn't a screen. The only gasket that I can see
is what looks like a square ring that sets up in a groove. The replacement screens and gasket sets that seem
to be available, have a cork type gasket that seems to be about 1/4" wide. I don't see any square ring type anywhere.
Is that ring supposed to be there, as it doesn't show it in that parts diagram?
I'm afraid if I remove it, the bowl will try to push the cork gasket up in that groove, and this may distort it and cause
a leak.
Anyone have any ideas?
Thanks, Pete

fundytides
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Re: 420C Sediment bowl

Post by fundytides » Tue Apr 13, 2021 12:29 pm

My 40c has the screen and square type ring that you described. It shows in my parts catalog as L886T gasket. Might be available from Lavoy or local JD dealer.
have 40c 4 roller crawler, 1927 Ford T Touring car, 1931 Ford A Roadster, 1951 Standard Vanguard Saloon. Never a dull moment!

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Lavoy
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Re: 420C Sediment bowl

Post by Lavoy » Tue Apr 13, 2021 1:43 pm

Gasket is like a washer like you describe.
I have gaskets, washers, or complete assemblies on hand.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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Lavoy
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Re: 420C Sediment bowl

Post by Lavoy » Tue Apr 13, 2021 1:43 pm

Gasket is like a washer like you describe.
I have gaskets, washers, or complete assemblies on hand.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

Buckhorn
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Re: 420C Sediment bowl

Post by Buckhorn » Tue Apr 13, 2021 3:59 pm

Lavoy wrote:
Tue Apr 13, 2021 1:43 pm
Gasket is like a washer like you describe.
I have gaskets, washers, or complete assemblies on hand.
Lavoy
Thanks
Is it like a rubber o-ring with a square cross section? All I saw in your catalog was the screen and the cork type washer
about 2" OD and 1.5" ID.
It's possible mine is from a different model. Mine is a 1957 420C.

Buckhorn
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Re: 420C Sediment bowl

Post by Buckhorn » Tue Apr 13, 2021 4:06 pm

fundytides wrote:
Tue Apr 13, 2021 12:29 pm
My 40c has the screen and square type ring that you described. It shows in my parts catalog as L886T gasket. Might be available from Lavoy or local JD dealer.
The L886T gasket that's in the parts diagram is cork, and about 2" OD and 1.5" ID.
Can't see any square ring listed.
Pete

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Stan Disbrow
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Re: 420C Sediment bowl

Post by Stan Disbrow » Wed Apr 14, 2021 4:23 am

Hi,

The rubber ring and cork gaskets come and go, back and forth, at the JD parts counter over the years. It is always a crap shoot as to what you are gonna get each time you need one..... ;)

And, it is also a crap shoot if you need one or not every time the bowl is removed. I learned to keep spares on hand.

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
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Lavoy
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Re: 420C Sediment bowl

Post by Lavoy » Wed Apr 14, 2021 7:47 am

Not an o-ring, large cork or rubber washer.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
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Buckhorn
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Re: 420C Sediment bowl

Post by Buckhorn » Wed Apr 14, 2021 10:17 am

Thanks everyone, Pete

Ray III
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Re: 420C Sediment bowl

Post by Ray III » Sat Apr 17, 2021 5:59 pm

While you are in there, remove the inlet fitting from the carb and you will find a strainer. It may need to be cleaned if the bowl screen was missing.

Buckhorn
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Re: 420C Sediment bowl

Post by Buckhorn » Sun Apr 18, 2021 7:45 am

Update:
Thanks to everyone for their comments to my post. It seems when I was looking up into the sediment bowl
housing with a flashlight, I was seeing the clean area on the rubber gasket where the bowl seated, which looked narrower because
the rest of it was dingy from nasty fuel in the bowl. I put in a new screen and cork gasket, replaced the fuel
line to the carb, which had been cut and an inline filter put in. I also removed and checked the screen on the
inlet to the carb. It seemed like I had to tighten the filter nut pretty tight to keep it from leaking, but I finally
got it to stop.
Pete

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