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Austinsevenfriends › Austin Seven Friends Forum › Forum chat... v
Carb gasket

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Carb gasket
Vancevr Offline
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Joined: Jan 2021 Posts: 162 Threads: 71
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Location: California USA
Car type: 1929 austin 7 chummy AD
#1
16-10-2022, 06:05 PM
What does the gasket thing look like for the float and needle. I think that i have a 26pa or what ever the letters are.
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Ivor Hawkins Offline
Mechanically sympathetic
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Joined: Aug 2017 Posts: 1,638 Threads: 23
Reputation: 15
Location: The village of Evenley
Car type: 1934 Austin Seven RP Deluxe
#2
17-10-2022, 11:50 AM
If it’s a 26va ( though that’s a bit late for your car) it doesn’t have a gasket on the float bowl just a fibre washer on the needle valve.
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Vancevr Offline
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Joined: Jan 2021 Posts: 162 Threads: 71
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Location: California USA
Car type: 1929 austin 7 chummy AD
#3
17-10-2022, 04:34 PM
What does the fiber washer look like? Mine looks as if they replaced it with a rubber one
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John Mason Offline
Lifetime lover of car tinkering
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Joined: Dec 2017 Posts: 1,160 Threads: 68
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Location: Nottinghamshire. Robin Hood County
Car type: Austin Ruby Mk1 1935
#4
17-10-2022, 04:43 PM
It is normally a red or black fibre washer, sometimes you may find a soft aluminium washer instead of the fibre. You can use the thickness of the washer to correctly set the correct fuel level in the float chamber. If the level is too high use a thicker washer. If to low then a thinner washer.

John Mason.
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.
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Vancevr Offline
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Joined: Jan 2021 Posts: 162 Threads: 71
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Location: California USA
Car type: 1929 austin 7 chummy AD
#5
18-10-2022, 03:38 PM
How do you know what size holes are needed?
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Rick F Offline
Still Learning
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Joined: Aug 2017 Posts: 272 Threads: 18
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Location: Deepest Norfolk
#6
18-10-2022, 11:45 PM (This post was last modified: 18-10-2022, 11:45 PM by Rick F.)
Personally, I have a box of assorted fibre washers and I just sort through and find one that fits whatever I am installing.
Rick

In deepest Norfolk
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John Mason Offline
Lifetime lover of car tinkering
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Joined: Dec 2017 Posts: 1,160 Threads: 68
Reputation: 8
Location: Nottinghamshire. Robin Hood County
Car type: Austin Ruby Mk1 1935
#7
19-10-2022, 09:12 AM
I don’t know the size of the washer but measure the diameter of the needle valve assembly where it is threaded to screw into the carb body. That will give you the size of washer you want.

John Mason.
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.
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