Staghound Question

[Richard Coutts-Smith]

In the bottom of a box of what could only be described as "Miscellaneous" parts from Tim's clearing sale last week I found 2 sets of Carbi seat/needles for a T-17-E-1. Are these specifically for this application, or do they fit any GMC 270?
Also a couple of brackets marked 31684T1, I only ask about these as the number does not seem Post War British (as the rest of the parts were), and.....it's got a "T" in it.
regards
Rich.

[Grant Bowker]

For what it's worth, there isn't a listing for a Chevrolet part number 608220 in the manual for the C60X with 270 engine (either Zenith or Carter carburetor version).

[David Dunlop]

What about the two sub components listed under this part number, Grant, at the bottom of the package?

David

[marco]

Staghound engines use the Carter W-1 carburetor so I guess the needle&seat assembly will fit any W-1 carburetor.

Marco

[Richard Coutts-Smith]

Thanks guys, not sure that's a definitive answer though, so best make sure they go to the right home.
Any Stag owner want them?
Rich.

[rob love]

From a carb rebuild sit eon the net:

Chevrolet used various versions of the Carter W-1 as original equipment from 1932 through 1949. In addition to the original equipment (O.E.) carbs, other units were offered as replacements; as Carter continued to improve the performance and reliability of the W-1. However, do not believe that all W-1 Carters were used on Chevrolet; as 128 different W-1 carburetors were built.

I think before a chev owner orders these, he should check the chev parts manual and see if the number matches. My CMP chev manual shows a needle seat part number of 25-338 or ac111352.

[marco]

Attached are two photo's from the Staghound's parts list SNL-G122.
The Carter part number for the set is Car 25-121S, Ordnance part number A281875.
See L and M in the illustration.

I could use them as spares.

Marco

[marco]

The third photo with information about the needle&seat.
I didn't upload with the previous post.

Marco

[Richard Coutts-Smith]

Marco, PM me your address and I will put them in the post.
Rich.

[Grant Bowker]

I don't consider my answer to be definitive.
Neither the complete needle and seat or subcomponents appear in the C60X-04 parts list.
Considering other Canadian vehicles that used the 270 in the same period: Parts list CAC-02 for the Fox only lists the Zenith carburetor - no Carter mentioned.
Parts list CRAC-02 for the Otter is similar to the Fox.
Parts list C15TA-02 is like the C60X, lists both the Zenith 28AV11 and Carter W1-589S and like the C60X listing, I don't see any of the part numbers on the package in the parts listing.

My understanding is that for Carter Carburetors the W-1 is a basic design/model and that the numbers 589S (and many others) describe sub-models of the W-1 series with particular set-ups to suit specific vehicles or groups of vehicles. Things that might be different (not sure which actually apply) include float setting, jets (idle, low, high speed), choke style (solid plate, hinged plate, plate with poppet), size of venture/horn, orientation of choke shaft (parallel or perpendicular to throttle), fuel delivered by accelerator pump, presence of governor (or not), and more.

For anyone interested, parts list C60S-03 lists the following in order of adoption (all Carters) 387S, W1-518S and W1-518SA. I presume the difference in models between C60S and models using the 270 is related to the increased air and fuel flows due to the difference in displacement.

My feeling is that the jet and seat might fit other W-1 applications than the 270 in the staghound but that I wouldn't rush to do it without more research to be sure it wouldn't mess things up (similar to Rob Love's viewpoint).