BULLETIN 9C-306
PAGE 4 OF 4
QUICK REFERENCE SPECIFICATIONS
1954
1955
1956
Synchromesh
Powerglide
Synchromesh
Powerglide
Synchromesh
Powerglide
Carburetor No.
7005921
7007181
7005982
7005922
7007172
7007180
7009255
7009254
Small Venturi
19/32"
19/32"
19/32"
19/32"
19/32"
19/32"
Large Venturi
1-11/32"
1-11/32"
1-11/32"
1-11/32"
1-11/32"
1-11/32"
Main Metering Jets
.058
.058
.057
.057
.058
.058
Idle Needle Holes
.073
.073
.073
.073
.073
.073
Sec.
Lower
.040
.040
.040
.040
.040
.040
Discharge
Middle
_
Holes
Upper
.028
.028
.028
.028
.028
.028
Spark Drill
ngs
.050(4)
.050(4)
.050(4)
.050(4)
.050(4)
.050(4)
Pump Jets
.031
.031
.031
.031
.031
.031
Power Restrictions
.039
.039
.036
.036
.036
.036
Choke Res.
Channel
.101
.089
.101
.089
.101
.089
By Pass
Idle Tube Res.
.063
.063
.065
.065
.063
.063
ADJUSTMENTS
Dimensions
Dimensions
Dimensions
Dimensions
Dimensions
Dimensions
Gauge No.
Float Level
1-9/32"
1 9/32"
1-9/32"
1-9/32"
1-9/32"
1-9/32"
M-250
Float Drop
1-3/4"
1-3/4"
1-3/4"
1-3/4"
1-3/4"
BT-93 or Scale
Automatic Choke
Index
2 Notches Lean
Index
2 Notches Leon
Index
2 Notches Lean
-------
Choke Rod
.076
.076
.076
.076
.076
.076
BT-99
Unloader
.230
.230
.230
.230
.230
.230
BT-99
TUNE-UP
Synchromesh
Powerglide
Synchromesh
Powerglide
Synchromesh
Powerglide
Spark Plug Gap
.035
.035
.035
.035
.035
.035
Breaker Point Gap
.0125 -.0175
.0125 -.0175
.016
.016
.016
.016
Cam Dwell
38 -42
38 -42
26-33
26-33
28 -35
28 -35
Ignition Timing
2 A.T.C.
2 A.T.C.
T.D.C.
T.D.C.
T.D.C.
T.D.C.
Tappet Clearance
Int. - .006 Hot Exh. - .013 Hot
HYDRAULIC
Int. - .006 Hot Exh. -.013 Hot
HYDRAULIC
HYDRAULIC
HYDRAULIC
Idle R.P.M.
475
425 Dr.
475
425 Dr.
475
425 Dr.
CARBURETOR TOOLS AND GAUGES AS LISTED ARE AVAILABLE THROUGH UMS DISTRIBUTORS
tmpE16-1.jpg
Rochester Carburetor
tmpE16-2.jpg
A GENERAL MOTORS PRODUCT A UNITED MOTORS LINE
FORM 1229 l.P.S.
PRINTED IN U.S.A.

<PREVIOUS PAGE         NEXT PAGE>

 

RC INDEX

 

INFORMATION FOR 1960 and Earlier CHEVROLETS

 

WebCounter says that you are visitor number:

Please Report any Broken Links or Pages that do not load properly.  Webmaster

This Information is for Research and the Promotion of the Preservation of Older Chevys

All Names, Trademarks and Logos Belong to their Respective Owners.

 

Web Space Provided by TOCMP