Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSOLDSMOBILE1969DELTA 88 BASE, 7.5L ENG, ENG CD UD, NOT AVAILABLE TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALFUEL SYSTEMROCHESTER 2GC & 2GV 2-BARRELADJUSTMENTTHROTTLE LINKAGE (AUTO. TRANS. CARS)

1969 Oldsmobile Delta 88 Base, 7.5L Eng, Eng CD UD, Not Available Trans

Throttle Linkage (Auto. Trans. Cars)

1969 Oldsmobile Delta 88 Base, 7.5L Eng, Eng CD UD, Not Available TransSECTION Throttle Linkage (Auto. Trans. Cars)

See CARBURETOR on car model Tune-Up pages.

CARBURETOR ADJUSTMENT SPECIFICATIONS

Rochester Carb. No.

Hot Idle Speed (Engine RPM) ⁽¹⁾

Float Level Setting

Float Drop Setting

Pump Rod Setting

Idle Vent Setting

Choke Rod Setting

Unloader Setting

Auto. Choke Setting

Synchro mesh

Auto. Trans.

7028060

650 ⁽²⁾⁽⁶⁾

9/16"

1 3/4"

1 11/32"

.085"

.180"

⁽³⁾

7028062

650 ⁽²⁾⁽⁶⁾

9/16"

1 3/4"

1 11/32"

.085"

.180"

⁽³⁾

7028066

800 ⁽²⁾

9/16"

1 3/4"

1 11/32"

.085"

.180"

⁽³⁾

7028071

700 ⁽²⁾

9/16"

1 3/4"

1 11/32"

.085"

.180"

⁽³⁾

7028101

700

3/4"

1 3/4"

1 1/8"

.025"

.060"

.200"

⁽⁴⁾

7028103

700

3/4"

1 3/4"

1 1/8"

.025"

.060"

.200"

⁽⁴⁾

7028110

600 ⁽⁵⁾

3/4"

1 3/4"

1 1/8"

.025"

.060"

.200"

⁽⁴⁾

7028112

600 ⁽⁵⁾

3/4"

1 3/4"

1 1/8"

.025"

.060"

.200"

⁽⁴⁾

7028140

550

15/32"

1 9/32"

1 11/32"

.025"

.050"

.140"

⁽³⁾

7028141

700

15/32"

1 9/32"

1 11/32"

.025"

.050"

140"

⁽³⁾

7028155

675 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

.150"

.160"

1 Lean

7028156

675 ⁽²⁾

575 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

.150"

.160"

Index

7028157

675 ⁽²⁾

575 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

150"

.160"

Index

7028158

575 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

.150"

.160"

Index

7028159

675 ⁽²⁾

575 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

.150"

.160"

Index

7029101

700

27/32"

1 3/4"

1 1/8"

.020"

.060"

.215"

⁽⁴⁾

7029102

600

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029103

700

27/32"

1 3/4"

1 1/8"

.020"

.060"

.215"

⁽⁴⁾

7029104

600

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029110

600

27/32"

1 3/4"

1 1/8"

.020"

.060"

.215"

⁽⁴⁾

7029112

600

27/32"

1 3/4"

1 1/8"

.020"

.060"

.215"

⁽⁴⁾

7029113

700

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029114

600

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029115

700

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029116

600

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029117

700

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029118

600

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029119

700

5/8"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029120

600

5/8"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029127

700

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029129

700

3/4"

1 3/4"

1 13/32"

.020"

.085"

.275"

⁽⁴⁾

7029140

600

15/32"

1 7/32"

1 11/32"

.020"

.050"

.140"

⁽³⁾

7029141

700

15/32"

1 7/32"

1 11/32"

.020"

.050"

.140"

⁽³⁾

7029155

675 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

.140"

.170"

1 Lean

7029156

575 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

.140"

.170"

Index

7029158

675 ⁽²⁾

575 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

.140"

.170"

Index

7029159

675 ⁽²⁾

575 ⁽²⁾

9/16"

1 3/8"

1 7/16"

.025"

.140"

.170"

Index

7028066

850

9/16"

1 3/4"

1 11/32"

.085"

.180"

⁽³⁾

7028071

850

9/16"

1 3/4"

1 11/32"

.085"

.180"

⁽³⁾

7029060

650

9/16"

1 3/4"

1 11/32"

.085"

.180"

⁽³⁾

7029062

650

9/16"

1 3/4"

1 11/32"

.085"

.180"

⁽³⁾

⁽¹⁾	Auto. Trans, in DRIVE, Air Cond. OFF (except as noted).

⁽²⁾	Idle Stop Solenoid setting (see Text for throttle stopscrew setting).

⁽³⁾	Gauging notch on lever (see text for adjustment procedure).

⁽⁴⁾	Interference fit of rod (see text for adjustment procedure).

⁽⁵⁾	On 307" Non-Emission Control (Export) Engines, set idle speed at 500 RPM on all transmissions.

⁽⁶⁾	Revised specification. See "Changes, Cautions, Corrections".

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.