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Carb nuts
#1
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dhart1977
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Does anyone know the size of nut used to hold the carb on the intake manifold of a 49 288?

Posted on: 4/20 12:43
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Re: Carb nuts
#2
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HH56
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Believe they are 5/16-24 and there should also be a lockwasher used with the nuts.

Posted on: 4/20 12:56
Howard
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Re: Carb nuts
#3
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dhart1977
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Awesome, thanks.

Posted on: 4/20 18:49
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Re: Carb nuts
#4
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dhart1977
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Seems as though neither 16 or 24 fits the studs. Could it be metric?

Posted on: 4/23 10:17
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Re: Carb nuts
#5
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humanpotatohybrid
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Quote:

dhart1977 wrote:
Seems as though neither 16 or 24 fits the studs. Could it be metric?


Parts book gives a 5/16 x 24 with lockwasher as Howard said.

https://packardinfo.com/xoops/html/modules/partslist/viewgroup.php?partslist=1948-1954&groupnumber=9.1001&PlateNumber=86&cat=20#resultanchor

I don't know what anyone could possibly use that's metric

Posted on: 4/23 10:49
'55 400. Needs aesthetic parts put back on, and electrical system sorted.
'55 Clipper Deluxe. Engine is stuck-ish.
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Re: Carb nuts
#6
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dhart1977
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Just seemed like neither size wanted to go on. I got about a third of the nut on and it just stopped like it was trying to cross thread. I'll try cleaning them up tonight and trying again.

Posted on: 4/23 11:25
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Re: Carb nuts
#7
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Packard Don
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Nothing metric on a Packard unless some previous owner put in threaded inserts and metric studs which seems very unlikely!

Posted on: 4/23 11:27
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Re: Carb nuts
#8
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BigKev
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Perhaps you need to run a die or thread chaser over the. I always clean with a brass brush and a little brake cleaner first to remove any thread gunk that can emulate a cross thread.

Posted on: 4/23 16:23
-BigKev


1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog

1937 Packard 115-C Convertible Coupe -> Registry | Project Blog
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