Farm Equipment - D19 carb jet sizes

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D19 carb jet sizes

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Category: Allis Chalmers
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Topic: D19 carb jet sizes

Posted By: JC-WI
Subject: D19 carb jet sizes
Date Posted: 19 Mar 2010 at 12:58am

Bulletin S-1321

D-19 gasoline carburetor

Repair kit #4055064 contains incorrct jet sizes, the kit was replaced with #4056315

The correct power jet is #4055095, .066" or #51 wire size drill.

The correct econimizer jet is #4055096, #55 drill or .052".

The correct idler jet is #4052268, #68 drill or 031".

The correct venturi is 1" size part #4052266 (not included in kit)

There is possibility that some incorrect jet sizes were assembled in production tractor carburetors.

W.K. Rockwell - Farm Equipment Service Department - February 12, 1964

Seen this bulletin and thought about those D-19's that were hungary for fuel and wondered if they might have had the big jets in their carbs.

Replies:

Posted By: Butch(OH)
Date Posted: 19 Mar 2010 at 4:56am

I suppose it is possible, doesnt say if the wrong jets were wrong large or wrong small. All tractor carbs have jets that are too large and they are restricted via the adjustment needles. We keep our D-19 pretty lean during the summer and winter when we are just knocking around with it and it till uses LOTS of fuel compared to our WD, Plowing? well, dont stray far from a fuel supply. W.K. Rockwell is a name you dont read much about on here and that fact has always suprized me, he was THE man of field service.