Engine - Dies on Bumps/Rough Roads
84chevy05Number: 84-228
Section: 6E (VIt)
Date: Dec., 1984
Subject: CARBURETOR FLOAT STABILIZER SPRING
Model and Year: 1982-84 S-10 PICKUP AND S-10 BLAZER WITH 2.8L LR2 ENGINE (CODE B)
TO: ALL CHEVROLET DEALERS
Some S-10 trucks, both two-wheel and four-wheel drive, may stop running upon driving over severe rough road conditions such as parking lot "speed bumps".
To minimize the effects of rough roads on the fuel level in the carburetor, a stabilizer spring can be installed. This spring will minimize the fuel level variation.
The attached list of carburetor part numbers display the various components used in production. Determine which carburetor is in the vehicle and repair if necessary with parts available from two (2) kits, P/N 7035156 and P/N 17110227.
1. If the fuel inlet seat listed for the carburetor is not .120 in. diameter, install a new needle and seat (kit, P/N 7035156).
2. A lower bowl insert, P/N 17073600, must be installed in place of the production part (P/N 17073600 is included with kit, P/N 17110227).
3. A float assist stabilizer spring, P/N 17074354, must be installed if the carburetor does not have one (included with kit, P/N 17110227).
4. With the new components installed, set the mechanical float level to 3.50 to 4.25 mm (4/32 to 5/32 inch).
5. Install new air horn gasket.
Refer to Service Manual, Section 6C3 (closed loop) or 6C9 (open loop) for procedures to follow for part installation and setting.
1982 MODEL YEAR
MECHANICAL FLOAT
CARBURETOR FLOAT STAB. LOWER BOWL FUEL INLET AIR HORN
MODEL # SETTING SPRING INSERT DIA. (IN.) GASKET KIT
17082348 7/16 NO 17071055 .120 17078011
17082349 7/16 NO 17071055 .120 17078011
17082350 7/16 NO 17071055 .120 17078011
17082351 7/16 NO 17071055 .120 17078011
17082353 7/16 NO 17071055 .120 17078011
17082355 7/16 NO 17071055 .120 17078011
17082356 13/32 NO 17071055 .120 17078048
17082357 13/32 NO 17071055 .120 17078048
17082358 13/32 NO 17071055 .120 17078048
17082359 13/32 NO 17071055 .120 17078048
1983 MODEL YEAR
MECHANICAL FLOAT
CARBURETOR FLOAT STAB. LOWER BOWL FUEL INLET AIR HORN
MODEL # SETTING SPRING INSERT DIA. (IN.) GASKET KIT
17083348 7/16 NO 17071055 .120 17079078
17083349 7/16 NO 17071055 .120 17079078
17083350 7/16 NO 17071055 .120 17079078
17083351 7/16 NO 17071055 .120 17079078
17083352 7/16 NO 17071055 .120 17079078
17083353 7/16 NO 17071055 .120 17079078
17083354 7/16 NO 17071055 .120 17079078
17083355 7/16 NO 17071055 .120 17079078
17083356 13/32 NO 17071055 .120 17078048
17083357 13/32 NO 17071055 .120 17078048
17083358 13/32 NO 17071055 .120 17078048
17083359 13/32 NO 17071055 .120 17078048
17083360 5/32 YES 17073600 .120 17079078
17083362 5/32 YES 17073600 .120 17079078
17083364 5/32 YES 17073600 .120 17079078
17083366 5/32 YES 17073600 .120 17079078
1984 MODEL YEAR
MECHANICAL FLOAT
CARBURETOR FLOAT STAB. LOWER BOWL FUEL INLET AIR HORN
MODEL # SETTING SPRING INSERT DIA. (IN.) GASKET KIT
17084348 11/32 NO 17071055 .100 17110032
17084349 11/32 NO 17071055 .100 17110032
17084350 11/32 NO 17071055 .100 17110032
17084351 11/32 NO 17071055 .100 17110032
17084352 11/32 NO 17071055 .100 17110032
17084353 11/32 NO 17071055 .100 17110032
17084354 11/32 NO 17071055 .100 17110032
17084355 11/32 NO 17071055 .100 17110032
17084356 9/32 NO 17071055 .100 17078048
17084357 9/32 NO 17071055 .100 17078048
17084358 9/32 NO 17071055 .100 17078048
17084359 9/32 NO 17071055 .100 17078048
17084360 5/32 YES 17073600 .120 17110032
17084362 5/32 YES 17073600 .120 17110032
17084364 5/32 YES 17073600 .120 17110032
17084366 5/32 YES 17073600 .120 17110032
17084368 4/32 YES 17073600 .120 17110276
17084370 4/32 YES 17073600 .120 17110276