SuperMotors SuperMotors SUPERMOTORS Search — try “orange Bronco on 35s”
Home/ Registry/ Mercury/ Cougar/ 1967-1970/ 1968 Mercury Cougar/ Photo supermotors.net/registry/media/848338

Shelby ID-1067 Manual Choke Installation Diagram - 428 CJ Holley Carburetor 1969

Exploded parts drawing of a Holley carburetor automatic choke assembly with numbered Shelby part callouts and a parts list.

AI caption · Photo 220 of 486

This is a scanned Shelby Automotive, Inc. Product Engineering drawing (No. ID-1067), dated and released 9-19-69, drawn by L.C.G., titled "Installation - Manual Choke (428 C.V.)". It is an exploded-view instruction sheet showing how to convert a Holley carburetor from an automatic choke to a manual choke. The left illustration identifies parts to be removed from the carburetor — the fuel bowl vent rod assembly, automatic choke assembly, automatic choke outlet/inlet, and cam-pick up lever — with a symbol legend distinguishing parts removed and not re-used (square), parts removed and re-used (hexagon: screws, cover screws, retainer), and parts added new (circle). The right illustrations show the new manual-choke sub-assembly (41R-214A, 34R-1793-A, 5R-623, 4R-529-A, held with 1/2" x 2" tape) and callouts for its installation, including View "A" showing required cam position before assembly. A 16-line parts table lists quantities, names and part numbers, including the fast idle cam plate assembly, choke lever and swivel, back-up plate, cam pick-up lever, fast idle cam lever, screws, springs, lead ball 7R-98 (to plug the choke vacuum passage), rubber cap 380613-S, and brass plug 7R-707 (to plug the primary fuel bowl vent hole). Notes state the Holley 2-V manual choke kit parts are not used in this installation.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What does Shelby drawing ID-1067 show?
It is a Shelby Automotive, Inc. Product Engineering exploded-view drawing titled "Installation - Manual Choke (428 C.V.)", showing removal of the automatic choke assembly from a carburetor and installation of manual choke parts.
What plugs the choke vacuum passage after removing the automatic choke?
A lead ball, part number 7-R-98 — the note states: after removing the automatic choke assembly, install lead ball 7R-98.
What parts make up the sub-assembly to be taped together before installation?
The sub-assembly consists of 41R-214A (fast idle cam plate assembly), 34R-1793-A (back up plate assembly), 5R-623 (fillister head screws), and 4R-529-A (choke lever and swivel assembly), held with 1/2" x 2" tape before assembling onto the carburetor.
What plugs the primary fuel bowl vent hole?
A brass plug, part number 7R-707.
Are the Holley 2-V manual choke kit parts used in this installation?
No — the drawing notes that parts furnished as part of the Holley manual choke kit for the 2-V carburetor are not used with this installation.

Comments

No comments yet.

More from this build

Blue painted metal part with casting numbers 'C 8C220' visible Two phosphate-coated banjo bolts or hollow fittings on a tan surface, one short one long Two black metal axle housing tubes with orange metal bracket in between Car Life road-test magazine page with performance data and acceleration-time graph 1968 Mercury Cyclone road-test magazine page with spec tables and photos Magazine article page with text columns and a side photo of a Mercury Cyclone Magazine road-test page titled 428 Street Cyclone with photos of a Mercury Cyclone 1968 Mercury Cougar photo

More 1967-1970 Cougars